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EC SERIES
Table of Contents
Model Nomenclature ..................................................................................................................1
Introduction....................................................................................................................................2
Initial Inspection............................................................................................................................2
General Description .....................................................................................................................2
Moving and Storage....................................................................................................................2
Safety Considerations .................................................................................................................2
Location............................................................................................................................................2
Installation.......................................................................................................................................2
Condensate Drain.........................................................................................................................3
Duct System....................................................................................................................................3
Electrical...........................................................................................................................................4
Piping ................................................................................................................................................4
Well Water Systems .....................................................................................................................5
Cooling Tower / Boiler Application........................................................................................5
Earth Coupled Systems...............................................................................................................5
System Checkout ..........................................................................................................................7
Unit Start-Up...................................................................................................................................7
Maintenance...................................................................................................................................8
Operating Pressures & Temperatures ...................................................................................9
Unit Check-Out............................................................................................................................16
Trouble Shooting .......................................................................................................................17
MODEL NOMENCLATURE
SERIES:
EC
NOMINAL CAPACITY:
VOLTAGE DESIGNATION:
0 - 115/1/60
1 - 208/1/60 & 230/1/60
2 - 277/1/60
3 - 208/3/60 & 230/3/60
4 - 460/3/60
5 - 575/3/60
CABINET CONFIGURATION:
VT - VERTICAL
HZ - HORIZONTAL
CF - COUNTERFLOW
HEAT EXCHANGER MATERIAL:
C - COPPER
N - CUPRO-NICKEL
SUPPLY AIR LOCATION:
T - TOP
F - FRONT
R - REAR
S - STRAIGHT THRU
E - END BLOW
B - BOTTOM
RETURN AIR LOCATION:
L - LEFT
R - RIGHT
B - BACK
F - FRONT
WATER CONNECTION
LOCATION:
F - FRONT
EC 036 -1 VT C-F L T
INTRODUCTION:
The EC Series uses scroll and reciprocating compressors
and refrigerant R-410A to achieve high efficiency levels,
quiet operation and reliable performance.
The new refrigerant provides performance similar to that of
R-22 with one major advantage. Refrigerant R-410A is an
HFC so it does not contain any ozone depleting HCFC's or
CFC's.
INITIAL INSPECTION:
Be certain to inspect all cartons or crates on each unit as
received at the job site before signing the freight bill. Verify
that all items have been received and that there are no
visible damages; note any shortages or damages on all
copies of the freight bill. In the event of damage or
shortage, remember that the purchaser is responsible for
filing the necessary claims with the carrier. Concealed
damages not discovered until after removing the units from
the packaging must be reported to the carrier within 24
hours of receipt.
GENERAL DESCRIPTION:
The EC Water-to-Air Heat Pumps provide the best
combination of performance and efficiency available.
Safety devices are built into each unit to provide the
maximum system protection possible when properly
installed and maintained.
The EC Water-to-Air Heat Pumps are Underwriters
Laboratories (UL), (CE) and (CUL) listed for safety. The EC
Water-to-Air Heat Pumps are designed to operate with
entering liquid temperature between 50° F and 100° F. With
the extended range option, the heat pump can operate with
entering liquid temperatures between 25° F and 110° F.
NOTE: 50° F Min. EWT for well water applications with
sufficient water flow to prevent freezing. Antifreeze
solution is required for all closed lop applications.
Cooling Tower/ Boiler and Earth Coupled (GeoThermal)
applications should have sufficient antifreeze solution to
protect against extreme conditions and equipment failure.
Frozen water coils are not covered under warranty.
WARNING: This product should not be used for
temporarily heating/cooling during construction. Doing so
may effect the units warranty.
MOVING AND STORAGE:
If the equipment is not needed for immediate installation
upon its arrival at the job site, it should be left in its
shipping carton and stored in a clean, dry area. Units must
only be stored or moved in the normal upright position as
indicated by the “UP” arrows on each carton at all times. If
unit stacking is required, stack units as follows: Vertical
units less than 6 tons, no more than two high. Horizontal
units less than 6 tons, no more than three high. “Do not
stack units larger than 6 tons.”
SAFETY CONSIDERATIONS:
CAUTION
: R-410A systems operate at higher pressures
than standard R-22 systems. Do not use R-22 service
equipment or components on R-410A equipment.
Installation and servicing of this equipment can be
hazardous due to system pressure and electrical
components. Only trained and qualified personnel should
install, repair, or service the equipment. Untrained
personnel can perform basic functions of maintenance
such as cleaning coils and replacing filters.
WARNING: Before performing service or maintenance
operations on the system, turn off main power to the unit.
Electrical shock could cause personal injury or death.
When working on equipment, always observe precautions
described in the literature, tags, and labels attached to the
unit. Follow all safety codes. Wear safety glasses and work
gloves. Use a quenching cloth for brazing, and place a fire
extinguisher close to the work area.
LOCATION:
Locate the unit in an indoor area that allows easy removal
of the filter and access panels, and has enough room for
service personnel to perform maintenance or repair.
Provide sufficient room to make water, electrical, and duct
connection(s). If the unit is located in a confined space such
as a closet, provisions must be made for return air to freely
enter the space. On horizontal units, allow adequate room
below the unit for a condensate drain trap and do not
locate the unit above supply piping. These units are not
approved for outdoor installation; therefore, they must be
installed inside the structure being conditioned. Do not
locate in areas that are subject to freezing.
INSTALLATION:
WARNING:
Remove all shipping blocks under blower
housing. Loosen compressor mounting bolts.
MOUNTING VERTICAL UNITS:
Vertical units up to five tons are available in left, right, front,
or rear air return configurations. Vertical units should be
mounted level on a vibration absorbing pad slightly larger
than the base to minimize vibration transmission to the
building structure. It is not necessary to anchor the unit to
the floor. (See Figure #1). Vertical units larger than five tons
(Figure #1)
VIBRATION
PAD
FULL SIZE
2
EC SERIES
should be vibration isolated according to the design
engineers specifications.
MOUNTING HORIZONTAL UNITS:
While horizontal units may
be installed on any level
surface strong enough to
hold their weight, they are
typically suspended above a
ceiling by threaded rods. The
rods are usually attached to
the unit corners by hanger
bracket kits (P/N 930-004, or 006). (See Figure #2). The rods
must be securely anchored to the ceiling. Refer to the
hanging bracket assembly and installation instructions for
details. Units larger than six tons include an integral angle
iron frame with mounting holes present. (See unit
horizontal detail drawing). Horizontal units installed above
the ceiling must conform to all local codes. An auxiliary
drain pan if required by code, should be at least four inches
larger than the bottom of the heat pump. Plumbing
connected to the heat pump must not come in direct
contact with joists, trusses, walls, etc..
Some applications require an attic floor installation of the
horizontal unit. In this case the unit should be set in a full
size secondary drain pan on top of a vibration absorbing
mesh. The secondary drain pan prevents possible
condensate overflow or water leakage damage to the
ceiling. The secondary drain pan is usually placed on a
plywood base isolated from the ceiling joists by additional
layers of vibration absorbing mesh. In both cases, a 3/4"
drain connected to this secondary pan should be run to an
eave at a location that will be noticeable. If the unit is
located in a crawl space, the bottom of the unit must be at
least 4" above grade to prevent flooding of the electrical
parts due to heavy rains.
CONDENSATE DRAIN:
WARNING:
If equipped with float style condensate
overflow switch, final adjustment must be made in the
field.
A drain line must be connected to the heat pump and
pitched away from the unit a minimum of 1/8" per foot to
allow the condensate to flow away from the unit.
This connection must be in conformance with local
plumbing codes. A trap must be installed in the condensate
line to insure free condensate flow. (Units are not internally
trapped). A vertical air vent is sometimes required to avoid
air pockets. (See Figure #3). The length of the trap depends
on the amount of positive or negative pressure on the
drain pan.
A second trap must not be included. The horizontal unit
should be pitched approximately 1/4" towards the drain in
both directions, to facilitate condensate removal. (See
Figure #4)
DUCT SYSTEM:
All EC models are provided with a return air duct flange,
while a supply air outlet collar is provided on all models
except the 6 thru 12 ton horizontal models to facilitate duct
connections. Refer to the individual data specification
sheet for physical dimensions of the collar and flange.
A flexible connector is recommended for supply and
return air connections on metal duct systems. All
metal ducting should be insulated with a minimum of
one inch duct insulation to avoid heat loss or gain and
prevent condensate forming during the cooling operation.
Application of the unit to uninsulated duct work is not
recommended as the unit's performance will be adversely
affected. Do not connect discharge ducts directly to the
blower outlet. The factory provided air filter must be
removed when using a filter back return air grill.The factory
filter should be left in place on a free return system.
If the unit will be installed in a new installation with new
duct work, the installation should be designed using
current ASHRAE procedures for duct sizing. If the unit will
be connected to an existing duct system, a check should be
made to assure that the duct system has the capacity to
handle the air required for the unit application. If the duct
system is too small, larger duct work must be installed. Be
certain to check for existing leaks and repair.
The duct system and all diffusers should be sized to handle
the designed air flow quietly. To maximize sound
attenuation of the unit blower, the supply and return air
plenums should be insulated. There should be no direct
straight air path thru the return air grille into the heat
pump. The return air inlet to the heat pump must have at
least one 90 degree turn away from the space return air
grille. If air noise or excessive air flow are a problem, the
blower speed can be changed to a lower speed to reduce
air flow.
(Figure #3)
3
(Figure #2)
(Figure #4)
EC SERIES
ELECTRICAL:
All field wiring must comply with local and national fire,
safety and electrical codes. Power to the unit must be
within the operating voltage range indicated on the unit's
nameplate. On three phase units, phases must be balanced
within 2%.
Properly sized fuses or HACR circuit breakers must be
installed for branch circuit protection. See equipment
rating plate for maximum size. The unit is supplied with an
opening for attaching conduit. Be certain to connect the
ground lead to the ground lug in the control box. Connect
the power leads as indicated on the unit wiring diagram.
THERMOSTAT CONNECTIONS:
Thermostat wiring is connected to the 5-position (6-
position on dual compressor models) low voltage terminal
block located in the upper portion of the electrical box. The
thermostat connections and their functions are as follows:
C Transformer 24 VAC Common
O Reversing Valve (energized in cooling)
Y Compressor contactor
Y1 1ST stage compressor contractor (dual-
compressor unit)
Y2 2ND stage compressor contractor (dual-
compressor unit)
R Transformer 24 VAC Hot
G Fan
SAFETY DEVICES AND THE UPM CONTROLLER
Each EC unit is factory provided with a Unit Protection
Module (UPM) that controls compressor operation and
monitors the safety controls that protect the unit.
Safety controls include the following:
• High pressure switches located in the refrigerant
discharge lines. One per refrigeration circuit.
• Low pressure switches located in the unit refrigerant
suction lines. One per refrigeration circuit.
• Optional freeze protection sensor located on the
leaving side of the water coil prevents unit operation
below 35ºF. A freeze stat pin located on the board may
be put in the YES or NO position depending whether
the freeze stat is ordered.
NOTE: The factory default is in the YES position. If the
freeze stat option is not ordered the pin must be relocated
to the NO position.
• Optional Condensate overflow protection sensor
located in the drain pan(s) of the unit and wired to the
UPM board.
The UPM includes the following features:
• ANTI-SHORT CYCLE TIMER – 5 minute delay on break
timer to prevent compressor short cycling.
• RANDOM START – Each controller has a unique
random start delay ranging from 270 to 300 seconds.
• LOW PRESSURE BYPASS TIMER - The low pressure
switch is bypassed for 120 seconds after compressor
start-up to prevent nuisance low pressure lockouts
during cold start-up in the heating mode.
•
BROWNOUT/SURGE/POWER INTERRUPTION PROTECTION
–
a 20 millisecond window is monitored for the above
condition. Should any of these conditions be detected,
the 5-minute delay on break timer and the random
start timer delay are initiated.
• MALFUNCTION OUTPUT – The controller has a set of
wet contacts for remote fault indication.
• TEST SERVICE PIN – A jumper pin is provided to reduce
all time delay settings to 5 seconds during
troubleshooting or verification of unit operation. Note
that operation of the unit in test mode can lead to
accelerated wear and premature failure of the unit.
• L.E.D. FAULT INDICATION – Two L.E.D. indicators are
provided as follows:
••
GREEN: Power L.E.D. indicates 18 – 30 VAC
present at the board.
••
RED: Fault indicator with blink codes as follows:
• INTELLIGENT RESET - If a fault condition is initiated the
5 minute delay on break time period and the random
start timer are initiated and the unit will restart after
these delays expire. During this period the fault LED
will indicate the cause of the fault. If the fault condition
still exists or reoccurs before one hour, the unit will go
into a hard lockout and requires a manual lockout
reset. A condensate overflow fault will cause the unit
to go into a hard lockout immediately.
• LOCKOUT RESET - A hard lockout can be reset by
turning the unit thermostat off and then back on or by
shutting off unit power at the circuit breaker.
NOTE: The blower motor will remain active during a
lockout condition.
PIPING:
Supply and return piping must be as large as the unit
connections on the heat pump (larger on long runs). Never
use flexible hoses of a smaller inside diameter than that of
SINGLE COMPRESSOR UNITS (UPM-I)
One blink High pressure lockout
Two blinks Low pressure lockout
Three blinks Freeze sensor lockout
Four blinks Condensate overflow
Five blinks Brownout Conditions
DUAL COMPRESSOR UNITS (UPM-II)
One blink
1st Stage high pressure
lockout
Two blinks 1st Stage low pressure lockout
Three blinks
2nd Stage high pressure
lockout
Four blinks
2nd Stage low pressure
lockout
Five blinks Freeze Protection lockout
Six blinks Condensate overflow lockout
4
EC SERIES
the water connections on the unit. EC Units are supplied
with either a copper or optional cupro-nickel condenser.
Copper is adequate for ground water that is not high in
mineral content. Should your well driller express concern
regarding the quality of the well water available or should
any known hazards exist in your area, we recommend
proper testing to assure the well water quality is suitable
for use with water source equipment. In conditions
anticipating moderate scale formation or in brackish water
a cupro-nickel heat exchanger is recommended.
Both the supply and discharge water lines will sweat if
subjected to low water temperature. These lines should be
insulated to prevent damage from condensation.
All manual flow valves used in the system must be ball
valves. Globe and gate valves must not be used due to high
pressure drop and poor throttling characteristics. Never
exceed the recommended water flow rates. Serious
damage or erosion of the water to refrigerant heat
exchanger could occur.
Always check carefully for water leaks and repair
appropriately. Units are equipped with female pipe thread
fittings. Consult the specification sheets for sizes. Teflon
tape sealer should be used when connecting water piping
connections to the units to insure against leaks and
possible heat exchanger fouling. Do not overtighten the
connections. Flexible hoses should be used between the
unit and the rigid system to avoid possible vibration. Ball
valves should be installed in the supply and return lines for
unit isolation and unit water flow balancing.
Pressure/temperature ports are recommended in both the
supply and return lines for system flow balancing. The
water flow can be accurately set by measuring the water-
to-refrigerant heat exchangers water side pressure drop.
See the unit specification sheets for the water flow and
pressure drop information.
CAUTION: Water piping exposed to extreme, low ambient
temperatures is subject to freezing.
WELL WATER SYSTEMS: (50° F EWT Min.)
(Figure #5)
When a water well is used exclusively for supplying water
to the heat pump, the pump should operate only when the
heat pump operates. A 24 volt, double pole single throw
(DP/ST) contactor can be used to operate the well pump
with the heat pump.
When two or more units are supplied from one well, the
pump can be wired to operate independently from either
unit. Two 24-volt double pole single throw relays wired in
parallel are required. An upsized VA transformer may be
required in either case.
The discharge water from the heat pump is not
contaminated in any manner and can be disposed of in
various ways depending on local codes (i.e. discharge well,
dry well, storm sewer, drain field, stream, pond, etc.)
COOLING TOWER / BOILER APPLICATION:
(Figure #6)
To assure adequate cooling and heating performance, the
cooling tower and boiler water loop temperature should be
maintained between 50°F to 75°F in the heating mode and
60°F to 110°F in the cooling mode. In the cooling mode,
heat is rejected from the unit into the water loop. A cooling
tower provides evaporative cooling to the loop fluid; thus,
maintaining a constant supply temperature to the unit.
When utilizing an open cooling tower, chemical water
treatment is mandatory to ensure the water is free of
corrosive materials.
A secondary heat exchanger (plate frame between the unit
and the open cooling tower) may also be used. It is
imperative that all air is eliminated from the closed loop
side of the heat exchanger to prevent condenser fouling.
In the heating mode, heat is absorbed from the water loop
to the unit. A boiler can be utilized to maintain the loop
within the proper temperature range.
No unit should be connected to the supply or return piping
until the water system has been completely cleaned and
flushed to remove dirt, piping chips or other foreign
material. Supply and return hoses should be connected
together during this process to ensure the entire system is
properly flushed. After the cleaning and flushing has taken
place the unit may be connected to the water loop and
should have all valves wide open.
EARTH COUPLED SYSTEMS: (Figure #7)
Operation of an EC Series unit on a closed loop application
requires the extended range option.
NOTE: Closed loop and pond applications require
specialized design knowledge. No attempt at these
installations should be made unless the dealer has received
specialized training.
Utilizing Ground Loop Pumping Package (GLP), makes the
installation easy. Anti-freeze solutions must be utilized
when low evaporating conditions are expected to occur.
Refer to the installation manuals for more specific
instructions.
IN-WARRANTY MATERIAL RETURN:
When contacting your FHP Representative for service or
replacement parts, refer to the model and serial number of
the unit as stamped on the data plate attached to the unit.
All warranty material returned to the factory for credit must
be accompanied by a material return material tag. Enter
the information as called for on the tag in order to expedite
handling and insure prompt issuance of credits.
Freight charges for all items returned to the factory shall be
prepaid.The return of the part does not constitute an order
for a replacement. Therefore, a purchase order must be
entered through your nearest representative. The order
shall include the part number, model number, and serial
number of the unit involved. If the part is within the
warranty period, and after our inspection of the returned
part proves that the failure is due to faulty material or
workmanship a credit or replacement part will be issued.
All warranty parts shall be returned freight prepaid to:
FHP Manufacturing Company
601 N.W. 65TH Court • Fort Lauderdale, FL 33309
5
EC SERIES
(Figure #5)
WELL WATER APPLICATIONS
(50°F EWT MIN.)
1. LINE VOLTAGE DISCONNECT
2. FLEX DUCT CONNECTION
3. LOW VOLTAGE CONTROL CONNECTION
4. LINE VOLTAGE CONNECTION
5. VIBRATION PAD
6. P/T PORTS
7. HOSE KITS (Optional)
8. BALL VALVES
9. SOLENOID VALVE SLOW CLOSING
10. CONDENSATE DRAIN CONNECTION
11. PRESSURE TANK (Optional)
NOTE: SEE FIGURE #3 FOR CONDENSATE DRAIN
CONNECTION
6
EC SERIES
COOLING TOWER/BOILER APPLICATION
1. LINE VOLTAGE DISCONNECT
2. LOW VOLTAGE CONTROL CONNECTION
3. P/T PLUGS (Optional)
4. HOSE KITS
5. BALL VALVES
6. SUPPLY AND RETURN LINES OF CENTRAL SYSTEM
7. FLEX DUCT CONNECTION
8. HANGING BRACKETS ASSEMBLY (1/2 - 3
1
⁄2 TON MODELS)
9. THREADED ROD
NOTE: SEE FIGURE #3 FOR CONDENSATE DRAIN CONNECTION
(Figure #6)
SYSTEM CHECKOUT:
• After completing the installation, and before
energizing the unit, the following system checks
should be made:
• Verify that the supply voltage to the heat pump is in
accordance with the nameplate ratings.
• Make sure that all electrical connections are tight and
secure.
• Check the electrical fusing and wiring for the correct
size.
• Verify that the low voltage wiring between the
thermostat and the unit is correct.
• Verify that the water piping is complete and correct.
• Check that the water flow is correct, and adjust if
necessary.
• Check the blower for free rotation, and that it is
secured to the shaft.
• Verify that vibration isolation has been provided.
• Unit is serviceable. Be certain that all access panels are
secured in place.
UNIT START-UP:
1. Set the thermostat to the highest setting.
2. Set the thermostat system switch to "COOL", and the
fan switch to the "AUTO" position. The reversing valve
solenoid should energize. The compressor and fan
should not run.
3. Reduce the thermostat setting approximately 5
degrees below the room temperature.
4. Verify the heat pump is operating in the cooling mode.
5. Turn the thermostat system switch to the "OFF"
position. The unit should stop running and the
reversing valve should deenergize.
6. Leave the unit off for approximately (5) minutes to
allow for system equalization.
7. Turn the thermostat to the lowest setting.
8. Set the thermostat switch to "HEAT".
9. Increase the thermostat setting approximately 5
degrees above the room temperature.
10. Verify the heat pump is operating in the heating mode.
7
EC SERIES
11. Set the thermostat to maintain the desired space
temperature.
12. Check for vibrations, leaks, etc...
13. Instruct the owner on the unit and thermostat
operation.
MAINTENANCE:
1. Filter changes or cleanings are required at regular
intervals. The time period between filter changes will
depend upon type of environment the equipment is
used in. In a single family home, that is not under
construction, changing or cleaning the filter every 60
days is sufficient. In other applications, such as motels,
where daily vacuuming produces a large amount of
lint, filter changes may need to be as frequent as
biweekly.
2. An annual ”checkup” is recommended by a licensed
refrigeration mechanic. Recording the performance
measurements of volts, amps, and water temperature
differences (both heating and cooling) is
recommended. This data should be compared to the
information on the unit’s data plate and the data taken
at the original startup of the equipment.
3. Lubrication of the blower motor is not required,
however, may be performed on some motors to extend
motor life. Use SAE-20 non-detergent electric motor
oil.
4. The condensate drain should be checked annually by
cleaning and flushing to insure proper drainage.
5. Periodic lockouts almost always are caused by air or
water flow problems. The lockout (shutdown) of the
unit is a normal protective measure in the design of the
equipment. If continual lockouts occur call a mechanic
immediately and have them check for: water flow
problems, water temperature problems, air flow
problems or air temperature problems. Use of the
pressure and temperature charts for the unit may be
required to properly determine the cause.
EARTH COUPLED APPLICATION
1. LINE VOLTAGE DISCONNECT (UNIT)
2. FLEX DUCT CONNECTION
3. LOW VOLTAGE CONTROL CONNECTION
4. LINE VOLTAGE CONNECTION (UNIT)
5. P/T PORTS
6. VIBRATION PAD
7. CONDENSATE DRAIN
8. GROUND LOOP CONNECTION KIT
9. GROUND LOOP PUMPING PACKAGE (GL001-1 or 002-1)
10. POLYETHELENE WITH INSULATION
11. LINE VOLTAGE DISCONNECT (ELECTRIC HEATER)
NOTE: SEE FIGURE #3 FOR CONDENSATE DRAIN CONNECTION
(Figure #7)
8
EC SERIES
9
Operating Temperatures & Pressures, EC007-012
This chart shows approximate temperatures and pressures for a unit in good repair. The values shown are meant as a guide only and should not be used to estimate system
charge. This chart assumes rated air flow and 80º d.b./67º w.b. entering air temperature in cooling, 70º d.b. entering air temperature in heating. Heating data at entering fluid
temperatures below 50º assumes the use of antifreeze. Operation in shaded area requires the extended range option.
As a result of continuing research and development, specifications are subject to change without notice.
OPERATING DATA
COOLING HEATING
MODEL
ENTERING
WATER
TEMP, ˚F
WATER FLOW
GPM
SUCTION
PRESSURE
PSIG
DISCHARGE
PRESSURE
PSIG
WATER
TEMP
RISE, ˚F
AIR
TEMP
DROP, ˚F
SUCTION
PRESSURE
PSIG
DISCHARGE
PRESSURE
PSIG
WATER
TEMP
DROP, ˚F
AIR
TEMP
RISE, ˚F
EC007
30˚
1.4 65-80 282-344 6-7 14-17
1.9 73-89 294-359 3-4 15-18
40˚
1.4 106-129 146-178 17-21 18-22 80-98 299-365 7-9 16-20
1.9 102-124 133-162 10-13 19-23 89-108 311-380 4-5 17-21
50˚
1.4 115-141 180-220 17-20 17-21 95-116 315-385 9-11 19-23
1.9 111-135 163-200 10-12 18-23 105-128 329-402 5-7 20-24
60˚
1.4 124-152 213-261 16-19 17-21 109-133 332-406 11-13 21-26
1.9 120-146 194-237 10-12 18-22 121-148 346-423 6-8 22-27
70˚
1.4 134-163 247-302 15-19 17-20 124-151 349-427 12-15 23-28
1.9 128-157 225-275 9-11 18-21 138-168 364-444 7-9 25-30
80˚
1.4 143-175 281-343 14-18 16-20 138-169 366-447 14-17 26-31
1.9 137-168 255-312 9-11 17-21 154-188 381-466 8-10 27-33
90˚
1.4 152-186 315-385 14-17 16-19 153-187 383-468 16-19 28-34
1.9 146-179 286-350 8-10 17-20 170-208 399-487 9-12 29-36
100˚
1.4 161-197 349-426 13-16 15-19
1.9 155-190 317-387 8-10 16-20
EC009
30˚
1.8 91-111 251-307 5-6 21-25
2.4 95-116 256-313 3-4 22-26
40˚
1.8 112-137 144-176 14-17 22-27 107-130 267-327 6-7 24-29
2.4 106-130 137-167 10-12 23-28 112-137 273-333 4-5 25-30
50˚
1.8 116-142 177-217 13-16 21-26 123-150 284-347 7-9 27-33
2.4 111-135 169-206 9-12 22-27 129-158 289-353 5-6 28-34
60˚
1.8 121-148 211-258 13-16 21-26 139-170 300-366 8-10 30-37
2.4 115-140 200-245 9-11 22-27 146-179 306-374 6-7 32-39
70˚
1.8 126-154 245-299 13-15 20-25 156-190 316-386 9-12 33-41
2.4 119-146 232-284 9-11 21-26 163-200 322-394 7-8 35-43
80˚
1.8 130-159 278-340 12-15 20-24 172-210 332-406 11-13 36-44
2.4 124-151 264-323 9-11 21-26 180-220 339-414 8-9 38-47
90˚
1.8 135-165 312-381 12-15 19-24 188-230 349-426 12-15 39-48
2.4 128-157 296-362 9-10 20-25 197-241 355-434 8-10 41-51
100˚
1.8 140-171 345-422 12-14 19-23
2.4 133-162 328-401 8-10 20-24
EC012
30˚
2.6 73-89 266-325 5-6 15-18
3.0 77-94 272-333 3-4 16-19
40˚
2.6 117-143 189-231 14-17 18-22 86-105 279-341 6-7 17-21
3.0 112-137 178-217 8-9 19-24 90-110 286-350 4-5 18-22
50˚
2.6 126-154 221-270 14-17 18-21 162-198 293-358 7-8 20-24
3.0 121-148 207-253 8-9 19-23 170-208 300-366 5-6 21-25
60˚
2.6 131-160 252-308 13-16 17-21 110-134 306-374 8-10 22-27
3.0 125-153 237-290 8-9 18-22 115-141 314-383 6-7 23-29
70˚
2.6 135-165 284-347 13-16 17-20 122-150 320-391 9-11 24-30
3.0 130-158 266-326 7-9 18-22 129-157 327-400 6-8 26-32
80˚
2.6 140-171 320-391 13-16 16-20 134-164 333-407 11-13 27-33
3.0 134-164 300-367 7-9 17-21 141-172 341-417 7-9 28-35
90˚
2.6 144-176 360-440 13-16 16-19 147-179 347-424 12-14 29-36
3.0 138-169 338-414 7-9 17-21 154-188 355-434 8-10 31-38
100˚
2.6 149-182 405-495 13-15 15-19
3.0 143-174 381-465 7-9 16-20
EC SERIES
10
OPERATING DATA
COOLING HEATING
MODEL
ENTERING
WATER
TEMP, ˚F
WATER FLOW
GPM
SUCTION
PRESSURE
PSIG
DISCHARGE
PRESSURE
PSIG
WATER
TEMP
RISE, ˚F
AIR
TEMP
DROP, ˚F
SUCTION
PRESSURE
PSIG
DISCHARGE
PRESSURE
PSIG
WATER
TEMP
DROP, ˚F
AIR
TEMP
RISE, ˚F
EC015
30˚
2.8 74-90 244-299 3-4 13-15
3.8 78-95 251-306 2-3 13-16
40˚
2.8 122-149 183-224 14-18 19-23 87-106 257-314 4-5 15-18
3.8 117-143 172-210 8-10 20-24 91-111 263-322 3-3 16-19
50˚
2.8 131-160 214-261 14-18 18-22 164-201 269-329 5-6 17-20
3.8 126-154 201-245 8-10 19-24 173-211 276-337 3-4 18-22
60˚
2.8 136-166 244-298 14-17 18-22 111-136 282-344 6-7 19-23
3.8 131-160 230-281 8-10 19-23 117-143 289-353 4-5 20-24
70˚
2.8 141-172 275-336 14-17 17-21 124-152 294-360 7-8 21-25
3.8 135-165 258-316 8-10 18-22 131-160 302-369 5-6 22-27
80˚
2.8 145-178 310-378 14-17 17-20 136-166 307-375 8-9 23-28
3.8 140-171 291-356 8-10 18-22 143-175 314-384 5-6 24-30
90˚
2.8 150-183 349-426 14-17 16-20 149-182 319-390 8-10 25-30
3.8 144-176 328-401 8-9 17-21 156-191 327-400 6-7 26-32
100˚
2.8 155-189 392-480 13-16 16-19
3.8 149-182 369-451 8-9 17-21
EC018
30˚
3.0 65-80 282-344 6-7 14-17
5.0 73-89 294-359 3-4 15-18
40˚
3.0 121-148 184-225 17-21 18-22 80-98 299-365 7-9 16-20
5.0 117-143 167-204 10-13 19-23 89-108 311-380 4-5 17-21
50˚
3.0 123-151 222-271 17-20 17-21 95-116 315-385 9-11 19-23
5.0 119-145 202-247 10-12 18-23 105-128 329-402 5-7 20-24
60˚
3.0 125-153 260-318 16-19 17-21 109-133 332-406 11-13 21-26
5.0 120-147 237-289 10-12 18-22 121-148 346-423 6-8 22-27
70˚
3.0 127-155 298-365 15-19 17-20 124-151 349-427 12-15 23-28
5.0 122-149 271-331 9-11 18-21 138-168 364-444 7-9 25-30
80˚
3.0 129-158 336-411 14-18 16-20 138-169 366-447 14-17 26-31
5.0 124-152 306-374 9-11 17-21 154-188 381-466 8-10 27-33
90˚
3.0 131-160 374-458 14-17 16-19 153-187 383-468 16-16 28-34
5.0 126-154 340-416 8-10 17-20 170-208 399-487 9-12 29-36
100˚
3.0 133-162 413-504 13-16 15-19
5.0 128-156 375-458 8-10 16-20
EC024
30˚
5.0 72-87 296-361 5-6 21-25
7.0 75-92 301-368 3-4 22-26
40˚
5.0 114-139 155-190 14-17 22-27 88-107 314-384 6-7 24-29
7.0 108-132 147-180 10-12 23-28 92-112 321-392 4-5 25-30
50˚
5.0 116-142 192-234 13-16 21-26 104-127 333-407 7-9 27-33
7.0 111-135 182-222 9-12 22-27 109-133 340-415 5-6 28-34
60˚
5.0 119-146 228-279 13-16 21-26 120-146 352-430 8-10 30-37
7.0 113-138 217-265 9-11 22-27 125-153 359-439 6-7 32-39
70˚
5.0 122-149 264-323 13-15 20-25 136-166 371-453 9-12 33-41
7.0 116-142 251-307 9-11 21-26 142-174 378-462 7-8 35-43
80˚
5.0 125-152 301-368 12-15 20-24 152-185 389-476 11-13 36-44
7.0 118-145 286-349 9-11 21-26 159-194 397-485 8-9 38-47
90˚
5.0 127-156 337-412 12-15 19-24 168-205 408-499 12-15 39-48
7.0 121-148 320-392 9-10 20-25 176-215 416-509 8-10 41-51
100˚
5.0 130-159 374-457 12-14 19-23
7.0 124-151 355-434 8-10 20-24
EC SERIES
Operating Temperatures & Pressures, EC015-024
This chart shows approximate temperatures and pressures for a unit in good repair. The values shown are meant as a guide only and should not be used to estimate system
charge. This chart assumes rated air flow and 80º d.b./67º w.b. entering air temperature in cooling, 70º d.b. entering air temperature in heating. Heating data at entering fluid
temperatures below 50º assumes the use of antifreeze. Operation in shaded area requires the extended range option.
As a result of continuing research and development, specifications are subject to change without notice.
11
OPERATING DATA
COOLING HEATING
MODEL
ENTERING
WATER
TEMP, ˚F
WATER FLOW
GPM
SUCTION
PRESSURE
PSIG
DISCHARGE
PRESSURE
PSIG
WATER
TEMP
RISE, ˚F
AIR
TEMP
DROP, ˚F
SUCTION
PRESSURE
PSIG
DISCHARGE
PRESSURE
PSIG
WATER
TEMP
DROP, ˚F
AIR
TEMP
RISE, ˚F
EC030
30˚
3.5 73-89 266-325 5-6 15-18
7.5 77-94 272-333 3-4 16-19
40˚
3.5 117-143 189-231 14-17 18-22 86-105 279-341 6-7 17-21
7.5 112-137 178-217 8-9 19-24 90-110 286-350 4-5 18-22
50˚
3.5 126-154 221-270 14-17 18-21 162-198 293-358 7-8 20-24
7.5 121-148 207-253 8-9 19-23 170-208 300-366 5-6 21-25
60˚
3.5 131-160 252-308 13-16 17-21 110-134 306-374 8-10 22-27
7.5 125-153 237-290 8-9 18-22 115-141 314-383 6-7 23-29
70˚
3.5 135-165 284-347 13-16 17-20 122-150 320-391 9-11 24-30
7.5 130-158 266-326 7-9 18-22 129-157 327-400 6-8 26-32
80˚
3.5 140-171 320-391 13-16 16-20 134-164 333-407 11-13 27-33
7.5 134-164 300-367 7-9 17-21 141-172 341-417 7-9 28-35
90˚
3.5 144-176 360-440 13-16 16-19 147-179 347-424 12-14 29-36
7.5 138-169 338-414 7-9 17-21 154-188 355-434 8-10 31-38
100˚
3.5 149-182 405-495 13-15 15-19
7.5 143-174 381-465 7-9 16-20
EC036
30˚
4.5 74-90 244-299 3-4 13-15
9.0 78-95 251-306 2-3 13-16
40˚
4.5 122-149 183-224 14-18 19-23 87-106 257-314 4-5 15-18
9.0 117-143 172-210 8-10 20-24 91-111 263-322 3-3 16-19
50˚
4.5 131-160 214-261 14-18 18-22 164-201 269-329 5-6 17-20
9.0 126-154 201-245 8-10 19-24 173-211 276-337 3-4 18-22
60˚
4.5 136-166 244-298 14-17 18-22 111-136 282-344 6-7 19-23
9.0 131-160 230-281 8-10 19-23 117-143 289-353 4-5 20-24
70˚
4.5 141-172 275-336 14-17 17-21 124-152 294-360 7-8 21-25
9.0 135-165 258-316 8-10 18-22 131-160 302-369 5-6 22-27
80˚
4.5 145-178 310-378 14-17 17-20 136-166 307-375 8-9 23-28
9.0 140-171 291-356 8-10 18-22 143-175 314-384 5-6 24-30
90˚
4.5 150-183 349-426 14-17 16-20 149-182 319-390 8-10 25-30
9.0 144-176 328-401 8-9 17-21 156-191 327-400 6-7 26-32
100˚
4.5 155-189 392-480 13-16 16-19
9.0 149-182 369-451 8-9 17-21
EC041
EC042
30˚
6.0 64-78 248-303 5-6 15-18
10.0 67-82 254-311 3-4 16-19
40˚
6.0 109-134 183-224 18-22 19-23 75-91 261-319 6-8 17-21
10.0 105-128 172-210 10-12 20-25 79-96 267-327 4-5 18-23
50˚
6.0 118-144 214-261 18-22 19-23 142-173 273-334 8-10 20-24
10.0 113-138 201-245 10-12 20-24 149-182 280-342 5-7 21-26
60˚
6.0 122-149 244-298 17-21 18-22 96-117 286-349 9-11 22-27
10.0 117-143 230-281 10-12 19-24 101-123 293-358 6-8 24-29
70˚
6.0 126-154 275-336 17-21 18-22 107-131 299-365 11-13 25-30
10.0 121-148 258-316 10-12 19-23 113-138 306-374 7-9 26-32
80˚
6.0 130-159 310-378 17-21 17-21 117-143 311-380 12-15 27-33
10.0 125-153 291-356 10-12 18-22 123-151 319-390 8-10 29-35
90˚
6.0 134-164 349-426 17-20 17-20 128-157 324-396 13-16 29-36
10.0 129-158 328-401 9-12 18-22 135-165 332-406 9-11 31-38
100˚
6.0 139-170 392-480 16-20 16-20
10.0 133-163 369-451 9-11 17-21
EC SERIES
Operating Temperatures & Pressures, EC030-042
This chart shows approximate temperatures and pressures for a unit in good repair. The values shown are meant as a guide only and should not be used to estimate system
charge. This chart assumes rated air flow and 80º d.b./67º w.b. entering air temperature in cooling, 70º d.b. entering air temperature in heating. Heating data at entering fluid
temperatures below 50º assumes the use of antifreeze. Operation in shaded area requires the extended range option.
As a result of continuing research and development, specifications are subject to change without notice.
12
Operating Temperatures & Pressures, EC048-070
This chart shows approximate temperatures and pressures for a unit in good repair. The values shown are meant as a guide only and should not be used to estimate system
charge. This chart assumes rated air flow and 80º d.b./67º w.b. entering air temperature in cooling, 70º d.b. entering air temperature in heating. Heating data at entering fluid
temperatures below 50º assumes the use of antifreeze. Operation in shaded area requires the extended range option.
As a result of continuing research and development, specifications are subject to change without notice.
OPERATING DATA
COOLING HEATING
MODEL
ENTERING
WATER
TEMP, ˚F
WATER FLOW
GPM
SUCTION
PRESSURE
PSIG
DISCHARGE
PRESSURE
PSIG
WATER
TEMP
RISE, ˚F
AIR
TEMP
DROP, ˚F
SUCTION
PRESSURE
PSIG
DISCHARGE
PRESSURE
PSIG
WATER
TEMP
DROP, ˚F
AIR
TEMP
RISE, ˚F
EC048
EC051
30˚
6.0 71-87 277-339 6-7 15-19
10.0 75-92 284-347 4-5 16-20
40˚
6.0 118-144 194-237 21-25 19-23 84-102 291-356 7-9 18-22
10.0 113-138 182-223 12-14 20-24 88-108 299-365 5-6 19-23
50˚
6.0 127-155 226-276 21-25 18-22 159-194 305-373 9-11 20-25
10.0 122-149 213-260 12-14 19-24 167-204 313-383 6-7 21-26
60˚
6.0 131-160 259-316 21-25 18-22 108-132 320-391 10-13 23-28
10.0 126-154 243-297 12-14 19-23 113-138 328-400 7-9 24-29
70˚
6.0 136-166 291-355 20-25 17-21 120-147 334-408 12-15 25-31
10.0 130-159 273-334 12-14 18-22 126-154 342-418 8-10 27-32
80˚
6.0 140-171 328-401 20-24 17-20 131-161 348-425 14-17 27-34
10.0 135-165 308-377 11-14 18-22 138-169 356-436 9-11 29-36
90˚
6.0 145-177 369-451 20-24 16-20 144-176 362-442 15-18 30-37
10.0 139-170 347-424 11-14 17-21 151-185 371-453 10-12 32-39
100˚
6.0 149-183 415-508 19-24 16-19
10.0 143-175 391-477 11-14 17-21
EC060
EC061
30˚
8.0 68-84 256-313 5-7 19-23
12.0 73-89 261-319 4-5 20-25
40˚
8.0 113-138 173-212 18-22 19-23 81-99 277-339 7-8 22-26
12.0 110-134 162-198 12-14 20-24 86-105 283-346 5-6 23-28
50˚
8.0 116-142 207-253 17-21 19-23 93-114 299-365 8-9 24-29
12.0 112-137 193-236 12-14 19-24 99-121 305-373 6-7 25-31
60˚
8.0 118-145 240-293 17-21 18-23 106-129 321-392 9-11 26-32
12.0 115-140 224-274 11-14 19-23 113-138 327-400 7-8 28-34
70˚
8.0 121-148 273-334 17-21 18-22 118-145 342-418 10-12 29-35
12.0 117-143 255-312 11-14 19-23 126-154 349-427 8-9 30-37
80˚
8.0 123-151 307-375 16-20 18-22 131-160 364-444 11-14 31-38
12.0 120-146 287-350 11-13 19-23 139-170 371-454 8-10 33-40
90˚
8.0 126-154 340-416 16-20 18-22 143-175 385-471 12-15 33-41
12.0 122-149 318-388 11-13 18-22 152-186 393-480 9-11 35-43
100˚
8.0 128-157 373-456 16-19 17-21
12.0 125-152 349-426 11-13 18-22
EC070
30˚
12.0 68-84 256-313 5-7 19-23
16.0 73-89 261-319 4-5 20-25
40˚
12.0 117-143 182-222 15-19 21-26 81-99 277-339 7-8 22-26
16.0 114-139 170-208 11-14 22-27 86-105 283-346 5-6 23-28
50˚
12.0 120-147 215-263 15-18 20-25 93-114 299-365 8-9 24-29
16.0 117-143 201-246 11-14 21-26 99-121 305-373 6-7 25-31
60˚
12.0 123-150 248-304 14-17 20-24 106-129 321-392 9-11 26-32
16.0 119-146 232-284 11-13 21-25 113-138 327-400 7-8 28-34
70˚
12.0 126-154 282-344 14-17 19-24 118-145 342-418 10-12 29-35
16.0 122-149 263-322 10-13 20-25 126-154 349-427 8-9 30-37
80˚
12.0 129-157 315-385 13-16 19-23 131-160 364-444 11-14 31-38
16.0 125-153 294-360 10-12 19-24 139-170 371-454 8-10 33-40
90˚
12.0 132-161 348-426 13-16 18-22 143-175 385-471 12-15 33-41
16.0 128-156 326-398 10-12 19-23 152-186 393-480 9-11 35-43
100˚
12.0 134-164 382-466 12-15 17-21
16.0 131-160 357-436 9-11 18-22
EC SERIES
13
OPERATING DATA
COOLING HEATING
MODEL
ENTERING
WATER
TEMP, ˚F
WATER FLOW
GPM
SUCTION
PRESSURE
PSIG
DISCHARGE
PRESSURE
PSIG
WATER
TEMP
RISE, ˚F
AIR
TEMP
DROP, ˚F
SUCTION
PRESSURE
PSIG
DISCHARGE
PRESSURE
PSIG
WATER
TEMP
DROP, ˚F
AIR
TEMP
RISE, ˚F
EC072
30˚
10.0 65-80 282-344 6-7 14-17
16.0 73-89 294-359 3-4 15-18
40˚
10.0 121-148 184-225 17-21 18-22 80-98 299-365 7-9 16-20
16.0 117-143 167-204 10-13 19-23 89-108 311-380 4-5 17-21
50˚
10.0 123-151 222-271 17-20 17-21 95-116 315-385 9-11 19-23
16.0 119-145 202-247 10-12 18-23 105-128 329-402 5-7 20-24
60˚
10.0 125-153 260-318 16-19 17-21 109-133 332-406 11-13 21-26
16.0 120-147 237-289 10-12 18-22 121-148 346-423 6-8 22-27
70˚
10.0 127-155 298-365 15-19 17-20 124-151 349-427 12-15 23-28
16.0 122-149 271-331 9-11 18-21 138-168 364-444 7-9 25-30
80˚
10.0 129-158 336-411 14-18 16-20 138-169 366-447 14-17 26-31
16.0 124-152 306-374 9-11 17-21 154-188 381-466 8-10 27-33
90˚
10.0 131-160 374-458 14-17 16-19 153-187 383-468 16-19 28-34
16.0 126-154 340-416 8-10 17-20 170-208 399-487 9-12 29-36
100˚
10.0 133-162 413-504 13-16 15-19
16.0 128-156 375-458 8-10 16-20
EC096
30˚
13.0 72-87 296-361 5-6 21-25
22.0 75-92 301-368 3-4 22-26
40˚
13.0 114-139 155-190 14-17 22-27 88-107 314-384 6-7 24-29
22.0 108-132 147-180 10-12 23-28 92-112 321-392 4-5 25-30
50˚
13.0 116-142 192-234 13-16 21-26 104-127 333-407 7-9 27-33
22.0 111-135 182-222 9-12 22-27 109-133 340-415 5-6 28-34
60˚
13.0 119-146 228-279 13-16 21-26 120-146 352-430 8-10 30-37
22.0 113-138 217-265 9-11 22-27 125-153 359-439 6-7 32-39
70˚
13.0 122-149 264-323 13-15 20-25 136-166 371-453 9-12 33-41
22.0 116-142 251-307 9-11 21-26 142-174 378-462 7-8 35-43
80˚
13.0 125-152 301-368 12-15 20-24 152-185 389-476 11-13 36-44
22.0 118-145 286-349 9-11 21-26 159-194 397-485 8-9 38-47
90˚
13.0 127-156 337-412 12-15 19-24 168-205 408-499 12-15 39-48
22.0 121-148 320-392 9-10 20-25 176-215 416-509 8-10 41-51
100˚
13.0 130-159 374-457 12-14 19-23
22.0 124-151 355-434 8-10 20-24
EC120
30˚
16.0 73-89 266-325 5-6 15-18
32.0 77-94 272-333 3-4 16-19
40˚
16.0 117-143 189-231 14-17 18-22 86-105 279-341 6-7 17-21
32.0 112-137 178-217 8-9 19-24 90-110 286-350 4-5 18-22
50˚
16.0 126-154 221-270 14-17 18-21 162-198 293-358 7-8 20-24
32.0 121-148 207-253 8-9 19-23 170-208 300-366 5-6 21-25
60˚
16.0 131-160 252-308 13-16 17-21 110-134 306-374 8-10 22-27
32.0 125-153 237-290 8-9 18-22 115-141 314-383 6-7 23-29
70˚
16.0 135-165 284-347 13-16 17-20 122-150 320-391 9-11 24-30
32.0 130-158 266-326 7-9 18-22 129-157 327-400 6-8 26-32
80˚
16.0 140-171 320-391 13-16 16-20 134-164 333-407 11-13 27-33
32.0 134-164 300-367 7-9 17-21 141-172 341-417 7-9 28-35
90˚
16.0 144-176 360-440 13-16 16-19 147-179 347-424 12-14 29-36
32.0 138-169 338-414 7-9 17-21 154-188 355-434 8-10 31-38
100˚
16.0 149-182 405-495 13-15 15-19
32.0 143-174 381-465 7-9 16-20
EC SERIES
Operating Temperatures & Pressures, EC072-120
This chart shows approximate temperatures and pressures for a unit in good repair. The values shown are meant as a guide only and should not be used to estimate system
charge. This chart assumes rated air flow and 80º d.b./67º w.b. entering air temperature in cooling, 70º d.b. entering air temperature in heating. Heating data at entering fluid
temperatures below 50º assumes the use of antifreeze. Operation in shaded area requires the extended range option.
As a result of continuing research and development, specifications are subject to change without notice.
14
OPERATING DATA
COOLING HEATING
MODEL
ENTERING
WATER
TEMP, ˚F
WATER FLOW
GPM
SUCTION
PRESSURE
PSIG
DISCHARGE
PRESSURE
PSIG
WATER
TEMP
RISE, ˚F
AIR
TEMP
DROP, ˚F
SUCTION
PRESSURE
PSIG
DISCHARGE
PRESSURE
PSIG
WATER
TEMP
DROP, ˚F
AIR
TEMP
RISE, ˚F
EC150
30˚
22.0 74-90 244-299 3-4 13-15
38.0 78-95 251-306 2-3 13-16
40˚
22.0 122-149 183-224 14-18 19-23 87-106 257-314 4-5 15-18
38.0 117-143 172-210 8-10 20-24 91-111 263-322 3-3 16-19
50˚
22.0 131-160 214-261 14-18 18-22 164-201 269-329 5-6 17-20
38.0 126-154 201-245 8-10 19-24 173-211 276-337 3-4 18-22
60˚
22.0 136-166 244-298 14-17 18-22 111-136 282-344 6-7 19-23
38.0 131-160 230-281 8-10 19-23 117-143 289-353 4-5 20-24
70˚
22.0 141-172 275-336 14-17 17-21 124-152 294-360 7-8 21-25
38.0 135-165 258-316 8-10 18-22 131-160 302-369 5-6 22-27
80˚
22.0 145-178 310-378 14-17 17-20 136-166 307-375 8-9 23-28
38.0 140-171 291-356 8-10 18-22 143-175 314-384 5-6 24-30
90˚
22.0 150-183 349-426 14-17 16-19 149-182 319-390 8-10 25-30
38.0 144-176 328-401 8-9 17-21 156-191 327-400 6-7 26-32
100˚
22.0 155-189 392-480 13-16 16-19
38.0 149-182 369-451 8-9 17-21
EC180
30˚
25.0 64-78 248-303 5-6 15-18
45.0 67-82 254-311 3-4 16-19
40˚
25.0 109-134 183-224 18-22 19-23 75-91 261-319 6-8 17-21
45.0 105-128 172-210 10-12 20-25 79-96 267-327 4-5 18-23
50˚
25.0 118-144 214-261 18-22 19-23 142-173 273-334 8-10 20-24
45.0 113-138 201-245 10-12 20-24 149-182 280-342 5-7 21-26
60˚
25.0 122-149 244-298 17-21 18-22 96-117 286-349 9-11 22-27
45.0 117-143 230-281 10-12 19-24 101-123 293-358 6-8 24-29
70˚
25.0 126-154 275-336 17-21 18-22 107-131 299-365 11-13 25-30
45.0 121-148 258-316 10-12 19-23 113-138 306-374 7-9 26-32
80˚
25.0 130-159 310-378 17-21 17-21 117-143 311-380 12-15 27-33
45.0 125-153 291-356 10-12 18-22 123-151 319-390 8-10 29-35
90˚
25.0 134-164 349-426 17-20 17-20 128-157 324-396 13-16 29-36
45.0 129-158 328-401 9-12 18-22 135-165 332-406 9-11 31-38
100˚
25.0 139-170 392-480 16-20 16-20
45.0 133-163 369-451 9-11 17-21
EC210
30˚
28.0 71-87 277-339 6-7 15-19
52.0 75-92 284-347 4-5 16-20
40˚
28.0 118-144 194-237 21-25 19-23 84-102 291-356 7-9 18-22
52.0 113-138 182-223 12-14 20-24 88-108 299-365 5-6 19-23
50˚
28.0 127-155 226-276 21-25 18-22 159-194 305-373 9-11 20-25
52.0 122-149 213-260 12-14 19-24 167-204 313-383 6-7 21-26
60˚
28.0 131-160 259-316 21-25 18-22 108-132 320-391 10-13 23-28
52.0 126-154 243-297 12-14 19-23 113-138 328-400 7-9 24-29
70˚
28.0 136-166 291-355 20-25 17-21 120-147 334-408 12-15 25-31
52.0 130-159 273-334 12-14 18-22 126-154 342-418 8-10 27-32
80˚
28.0 140-171 328-401 20-24 17-20 131-161 348-425 14-17 27-34
52.0 135-165 308-377 11-14 18-22 138-169 356-436 9-11 29-36
90˚
28.0 145-177 369-451 20-24 16-20 144-176 362-442 15-18 30-37
52.0 139-170 347-424 11-14 17-21 151-185 371-453 10-12 32-39
100˚
28.0 149-183 415-508 19-24 16-19
52.0 143-175 391-477 11-14 17-21
EC SERIES
This chart shows approximate temperatures and pressures for a unit in good repair. The values shown are meant as a guide only and should not be used to estimate system
charge. This chart assumes rated air flow and 80º d.b./67º w.b. entering air temperature in cooling, 70º d.b. entering air temperature in heating. Heating data at entering fluid
temperatures below 50º assumes the use of antifreeze. Operation in shaded area requires the extended range option.
As a result of continuing research and development, specifications are subject to change without notice.
Operating Temperatures & Pressures, EC150-210
15
OPERATING DATA
COOLING HEATING
MODEL
ENTERING
WATER
TEMP, ˚F
WATER FLOW
GPM
SUCTION
PRESSURE
PSIG
DISCHARGE
PRESSURE
PSIG
WATER
TEMP
RISE, ˚F
AIR
TEMP
DROP, ˚F
SUCTION
PRESSURE
PSIG
DISCHARGE
PRESSURE
PSIG
WATER
TEMP
DROP, ˚F
AIR
TEMP
RISE, ˚F
EC240
30˚
32.0 68-84 256-313 5-7 19-23
64.0 73-89 261-319 4-5 20-25
40˚
32.0 113-138 172-210 18-22 19-23 81-99 277-339 7-8 22-26
64.0 110-134 161-196 12-14 20-24 86-105 283-346 5-6 23-28
50˚
32.0 116-142 206-252 17-21 19-23 93-114 299-365 8-9 24-29
64.0 112-137 193-236 12-14 19-24 99-121 305-373 6-7 25-31
60˚
32.0 118-145 241-294 17-21 18-23 106-129 321-392 9-11 26-32
64.0 115-140 225-275 11-14 19-23 113-138 327-400 7-8 28-34
70˚
32.0 121-148 275-336 17-21 18-22 118-145 342-418 10-12 29-35
64.0 117-143 257-314 11-14 19-23 126-154 349-427 8-9 30-37
80˚
32.0 123-151 309-378 16-20 18-22 131-160 364-444 11-14 31-38
64.0 120-146 289-353 11-13 19-23 139-170 371-454 8-10 33-40
90˚
32.0 126-154 344-420 16-20 18-22 143-175 385-471 12-15 33-41
64.0 122-149 321-392 11-13 18-22 152-186 393-480 9-11 35-43
100˚
32.0 128-157 378-462 16-19 17-21
64.0 125-152 353-432 11-13 18-22
EC300
30˚
45.0 68-84 256-313 5-7 19-23
75.0 73-89 261-319 4-5 20-25
40˚
45.0 117-143 210-256 15-19 21-26 81-99 277-339 7-8 22-26
75.0 114-139 196-239 11-14 22-27 86-105 283-346 5-6 23-28
50˚
45.0 120-147 243-297 15-18 20-25 93-114 299-365 8-9 24-29
75.0 117-143 227-277 11-14 21-26 99-121 305-373 6-7 25-31
60˚
45.0 123-150 276-337 14-17 20-24 106-129 321-392 9-11 26-32
75.0 119-146 258-315 11-13 21-25 113-138 327-400 7-8 28-34
70˚
45.0 126-154 309-378 14-17 19-24 118-145 342-418 10-12 29-35
75.0 122-149 289-353 10-13 20-25 126-154 349-427 8-9 30-37
80˚
45.0 129-157 343-419 13-16 19-23 131-160 364-444 11-14 31-38
75.0 125-153 320-391 10-12 19-24 139-170 371-454 8-10 33-40
90˚
45.0 132-161 376-459 13-16 18-22 143-175 385-471 12-15 33-41
75.0 128-156 351-429 10-12 19-23 152-186 393-480 9-11 35-43
100˚
45.0 134-164 409-500 12-15 17-21
75.0 131-160 382-467 9-11 18-22
EC360
30˚
50.0 65-80 282-344 6-7 14-17
90.0 73-89 294-359 3-4 15-18
40˚
50.0 121-148 184-225 17-21 18-22 80-98 299-365 7-9 16-20
90.0 117-143 167-204 10-13 19-23 89-108 311-380 4-5 17-21
50˚
50.0 123-151 222-271 17-20 17-21 95-116 315-385 9-11 19-23
90.0 119-145 202-247 10-12 18-23 105-128 329-402 5-7 20-24
60˚
50.0 125-153 260-318 16-19 17-21 109-133 332-406 11-13 21-26
90.0 120-147 237-289 10-12 18-22 121-148 346-423 6-8 22-27
70˚
50.0 127-155 298-365 15-19 17-20 124-151 349-427 12-15 23-28
90.0 122-149 271-331 9-11 18-21 138-168 364-444 7-9 25-30
80˚
50.0 129-158 336-411 14-18 16-20 138-169 366-447 14-17 26-31
90.0 124-152 306-374 9-11 17-21 154-188 381-466 8-10 27-33
90˚
50.0 131-160 374-458 14-17 16-19 153-187 383-468 16-19 28-34
90.0 126-154 340-416 8-10 17-20 170-208 399-487 9-12 29-36
100˚
50.0 133-162 413-504 13-16 15-19
90.0 128-156 375-458 8-10 16-20
EC SERIES
This chart shows approximate temperatures and pressures for a unit in good repair. The values shown are meant as a guide only and should not be used to estimate system
charge. This chart assumes rated air flow and 80º d.b./67º w.b. entering air temperature in cooling, 70º d.b. entering air temperature in heating. Heating data at entering fluid
temperatures below 50º assumes the use of antifreeze. Operation in shaded area requires the extended range option.
As a result of continuing research and development, specifications are subject to change without notice.
Operating Temperatures & Pressures, EC240-360
16
EC SERIES
UNIT CHECK-OUT
SHEET
Customer Data
Customer Name ______________________________________________ Date _________________________________
Address _____________________________________________________
_____________________________________________________
Phone ______________________________________________________ Unit Number __________________________
Unit Nameplate Data
Unit Make _________________________________________
Model Number_____________________________________ Serial Number_________________________________
Refrigerant Charge (oz) ________
Compressor: RLA _____________ LRA ______________
Blower Motor: FLA (or NPA) ____________ HP_______________
Maximum Fuse Size (Amps) ___________
Minimum Circuit Ampacity (Amps) ______________
Operating Conditions
Cooling Mode Heating Mode
Entering / Leaving Air Temp _______________ /_______________ _______________ /_______________
Entering Air Measured at: _______________________________ _______________________________
Leaving Air Measured at: _______________________________ _______________________________
Entering / Leaving Fluid Temp _______________ /_______________ _______________ /_______________
Fluid Flow (gpm) _______________________________ _______________________________
Fluid Side Pressure Drop _______________________________ _______________________________
Suction / Discharge Pressure (psig) _______________ /_______________ _______________/_______________
Suction / Discharge Temp _______________ /_______________ _______________ /_______________
Suction Superheat _______________________________ _______________________________
Entering TXV / Cap Tube Temp _______________________________ _______________________________
Liquid Subcooling _______________________________ _______________________________
Compressor Volts / Amps _______________ /_______________ _______________ /_______________
Blower Motor Volts / Amps _______________ /_______________ _______________ /_______________
Auxiliary Heat
Unit Make _________________________________________
Model Number _____________________________________ Serial Number ________________________________
Max Fuse Size (Amps) _______________________________
Volts / Amps_____________________ /____________________
Entering Air Temperature ____________________________
Leaving Air Temperature _____________________________
17
TROUBLE SHOOTING
PROBLEM POSSIBLE CAUSE CHECKS AND CORRECTIONS
ENTIRE UNIT DOES
NOT RUN
Power supply off Apply power, close disconnect
Blown fuse Replace fuse or reset circuit breaker. Check for correct fuses.
Voltage supply low If voltage is below minimum voltage specified on unit data plate, contact local power company.
Thermostat
Set the fan to "ON", the fan should run. Set thermostat to "COOL" and lowest temperature setting,
the unit should run in the cooling mode (reversing valve energized). Set unit to "HEAT" and the
highest temperature setting, the unit should run in the heating mode. If neither the blower or
compressor run in all three cases, the thermostat could be miswired or faulty.To ensure miswired
or faulty thermostat verify 24 volts is available on the condensing section low voltage terminal strip
between "R" and "C", "Y" and "C", and "O" and "C". If the blower does not operate, verify 24 volts
between terminals "G" and "C" in the air handler. Replace the thermostat if defective.
BLOWER OPERATES
BUT COMPRESSOR
DOES NOT
Thermostat Check setting, calibration, and wiring.
Wiring Check for loose or broken wires at compressor, capacitor, or contactor.
Safety controls Check UPM board red default L.E.D. for Blink Code
Compressor overload open If the compressor is cool and the overload will not reset, replace compressor.
Compressor motor grounded Internal winding grounded to the compressor shell. Replace compressor. If compressor burnout,
install suction filter dryer.
Compressor windings open After compressor has cooled, check continuity of the compressor windings. If the windings are
open, replace the compressor.
UNIT OFF ON
HIGH PRESSURE
CONTROL
Discharge pressure too high
In "COOLING" mode: Lack of or inadequate water flow. Entering water temperature too warm.
Scaled or plugged condenser.
In "HEATING" mode: Lack of or inadequate air flow. Blower inoperative, clogged filter or restrictions
in ductwork.
Refrigerant charge The unit is overcharged with refrigerant. Reclaim refrigerant, evacuate and recharge with factory
recommended charge.
High pressure Check for defective or improperly calibrated high pressure switch.
UNIT OFF ON
LOW PRESSURE
CONTROL
Suction pressure too low In "COOLING" mode: Lack of or inadequate air flow. Entering air temperature too cold. Blower
inoperative, clogged filter, or restrictions in ductwork.
In "HEATING" mode: Lack of or inadequate water flow. Entering water temperature too cold. Scaled
or plugged condenser.
Refrigerant charge The unit is low on refrigerant. Check for refrigerant leak, repair, evacuate and recharge with factory
recommended charge.
Low pressure switch Check for defective or improperly calibrated low pressure switch.
UNIT SHORT
CYCLES
Unit oversized Recalculate heating and or cooling loads.
Thermostat Thermostat installed near a supply air grill, relocate thermostat. Readjust heat anticipator.
Wiring and controls Loose connections in the wiring or a defective compressor contactor.
INSUFFICIENT
COOLING OR
HEATING
Unit undersized Recalculate heating and or cooling loads. If excessive, possibly adding insulation and shading will
rectify the problem.
Loss of conditioned air
by leaks
Check for leaks in duct work or introduction of ambient air through doors or windows.
Airflow Lack of adequate air flow or improper distribution of air. Replace dirty filter.
Refrigerant charge Low on refrigerant charge causing inefficient operation.
Compressor
Check for defective compressor. If discharge is too low and suction pressure is too high,
compressor is not pumping properly. Replace compressor.
Reversing valve Defective reversing valve creating bypass of refrigerant from discharge to suction side of
compressor. Replace reversing valve.
Operating pressures Compare unit operating pressures to the pressure / temperature chart for the unit.
TXV/Capillary Tube Check for possible restriction or defect. Replace if necessary.
Moisture, noncondensables The refrigerant system may be contaminated with moisture or noncondensables. Reclaim
refrigerant, evacuate and recharge with factory recommended charge. Note: a liquid line dryer may
be required.
EC SERIES
18
EC SERIES
NOTES:
19
EC SERIES
REV. 9/08
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