ECR R25H User manual

e Right Fit for Comfort
™
ECR International Inc
2201 Dwyer Avenue
Utica, NY 13501
e-mail: [e-mail]
An ISO 9001-2000 Certified Company
P/N 240007817, Rev. C [3/30/2010]
R25C/H
Replacement for:
Reminton, Singer,
McQuay J/EJ and others
R25C/H
Packaged Terminal Air Conditioner (PTAC)
Packaged Terminal Heat Pump (PTHP)
Straight cooling nominal capacities
Btuh 9,000 12,000 15,000
kW 2.6 3.5 4.4
Heat pump nominal capacities
Btuh 9,000 12,000 15,000
kW 2.6 3.5 4.4
Specifications and
Performance

Read This First
To the installer
Retain this manual and warranty for future reference.
Before leaving the premises, review this manual to be sure the unit
has been installed correctly and run the unit for one complete cycle
to make sure it functions properly.
To obtain technical service or warranty assistance during or aer the
installation of this unit, contact your local representative. Visit our web
site www.retroaire.com for a local representative listing. For further
assistance call 1-800-228-9364.
When calling for assistance, please have the following information ready:
Model Number___________________________________
Serial Number____________________________________
Date of installation_________________________________
NOTICE
e RetroAire™ replacement PTAC/PTHP is backed by EMI
and ECR International and is tested and rated in accordance
with:
AHRI Standards 310/380
UL-484
Due to ongoing product development, product designs and
specications may change without notice.
Please contact the factory for more information.
Contents
Read This First 2-3
To the installer . . . . . . . . . . . . . . . . . 2
Inspection . . . . . . . . . . . . . . . . . . . 3
General precautions . . . . . . . . . . . . . . . 3
General Product Information 4-9
Product description . . . . . . . . . . . . . . . 4
Standard controls and components. . . . . . . . . . 4
Factory-installed options (consult the factory) . . . . . . . 4
Field-installed options. . . . . . . . . . . . . . . 4
R25C/R25H Chassis . . . . . . . . . . . . . . . . 5
R25C/R25H Chassis Dimensions . . . . . . . . . . . 6
PTAC/PTHP Model Coding 7
Features 8-9
Optional wall-mounted thermostats . . . . . . . . . 9
Sequence of Operation 10-11
Initial Power-Up or power restoration . . . . . . . . . 10
R_ _C / R_ _H: Cooling Operation . . . . . . . . . . 11
R_ _C / R_ _H: Heating Operation . . . . . . . . . . 11
R_ _H: Mechanical Heating "Heat Pump" . . . . . . . . 11
R_ _H: Auxiliary Heating "Electric" or "Hydronic" . . . . . 11
Performance Data 12
Electrical Specifications 13-14
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The Right Fit for Comfort 2P/N 240007817, Rev. C [3/30/2010]

Read This First (continued)
General precautions
DANGER
Electrical Supply
Carefully read the rating plate located on the front panel.
e RetroAire replacement PTAC/PTHP must:
Be properly connected• to electrical supply with the
proper voltage as stated on the rating plate.
Be properly grounded• .
Use the properly-sized over-current protection•
device as stated on the rating plate. (time-delay fuse/
HACR Breaker)
Do not modify the RetroAire replacement PTAC/PTHP
Do not attempt to modify or change this unit in any way.
Tampering with the RetroAire replacement PTAC/PTHP is
dangerous and may result in serious injury or death. Tampering
voids all warranties.
Power Cord
The power cord supplied with the RetroAire replacement
PTAC/PTHP should be checked before every use. Follow the
instructions in the order listed on the device. Do not use the
product if the cord fails the test. A damaged power supply cord
must be replaced with a new cord from the manufacturer and not
repaired. e use of extension cords is prohibited.
Failure to follow these instructions can result in a re, explo-
sion or electrical shock causing property damage, personal
injury or death.
WARNING — Safety instructions
Save these instructions — this manual is intended as an
aid to qualified service personnel for proper installation,
operation, and maintenance of the RetroAire replacement
PTAC/PTHP.
Read all instructions thoroughly and carefully before at-
tempting installation or operation. Install or locate this unit
only in accordance with these instructions. Use this unit only
for its intended use as described in this manual.
Turn off the electrical supply before servicing the unit.
PTAC/PTHP chassis are heavy. To avoid injury, use assistance
when liing.
Do not use the unit if it has damaged wiring, is not working
properly, or has been damaged or dropped.
Failure to follow these instructions may result in improper installa-
tion, operation, service, or maintenance, possibly resulting in re,
electrical shock, property damage, personal injury, or death.
Recognize this symbol as an indication
of important safety information.
Inspection
Carefully check the shipment against the bill of lading.•
Make sure correct chassis has been received (• as well as any op-
tions).
Verify your equipment by using• “Model coding” on page 7.
Verify unit:
Unit size and type correct per submial sheet and job requirements?•
Voltage correct?•
Verify options (if any):
Capacity, electric heat if used?•
Hydronic coil included, if required? Piping located as required?•
All other factory installed options installed, if any?•
All eld installed options included, if any?•
Shipping damage MUST be reported to
the carrier IMMEDIATELY.
Examine the exterior.•
Remove cover and examine•
compressor and piping for signs
of damage.
Inspect each component for damage.•
Concealed damage must be reported to the carrier•
within 15 days of the receipt of the shipment.
e carrier must make proper notation on the delivery•
receipt of all damage identied and complete a carrier
inspection report.
e purchaser must notify ECR International’s Cus-•
tomer Service department of all damage and is respon-
sible for ling any necessary claims with the carrier.
Customer Service : [phone]
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P/N 240007817, Rev. C [3/30/2010] 3Made in USA

General Product Information
Product description
RetroAire Replacement Packaged Terminal Air Condition/Heat
Pumps units are available in straight cooling (PTAC) or as heat pump
systems (PTHP). Both the PTAC and PTHP congurations t the
wall sleeves of the units listed on the front cover. Heat pumps (PTHP)
reduce energy costs and will operate in mechanical heat mode down
to an outdoor temperature of 40°F (4.4°C), Below 40°F (4.4°C)
heating is accomplished by an auxillary heat option.
e Retroaire PTAC/PTHP units:
Use R-410A refrigerant. is refrigerant is not aected by a phase out• schedule.
Include high-eciency rotary compressors, protected by a 5-year war-• ranty.
Include an enhanced, high-eciency heat exchangers.•
Oer two fan speeds.•
Incorporate positive condensate re-evaporation to improve eciency.•
Have an optional motorized fresh-air feature with a positive pressure• seal.
RetroAire PTAC/PTHP ratings meet or exceed ASHE 90.1 Stan-
dards for energy eciency:
PTAC/PTHP units are available in nominal sizes of 9,000 Btuh, (2.6kW)• 12,000 Btuh (3.5kW) or 15,000 Btuh (4.4kW).
PTAC units (straight cooling only) are also available at 18,000 Btuh• (5.3kW).
Energy Eciency Rating (EER) as high as 10.•
Coefficient of performance (COP) ratings as high as 2.90 for heat•
pumps.
Standard controls and components
Construction
20-gauge galvanized steel construction of chassis.•
Condenser bae options to accommodate extended wall sleeve applica-• tions. (Consult the factory for special order items).
Powder-coated condenser and evaporator drain pan.•
Foam strip seal for supply air duct.•
Weather strip insulation.•
Air systems
Motors are thermally-protected PSC type.•
Air-stream surfaces are insulated with " ber-glass or " (3.2 mm)• Volara™.
e indoor fan is a foward-curved type, directly mounted to the motor• sha.
Unit mount controls include a eld selection switch to control indoor fan by• either cycling with compressor operation or continuously with the unit.
Condensate removal
e outdoor fan incorporates condensate slinger ring  Condensate• is thrown onto the coil, where it evaporates, improving system perfor-
mance.
ermostatic drain pan valve for condensate elimination when outdoor• temperature drops below 60°F (15°C) (heat pump units only).
Controls
Unit-mounted operating controls include thermostat, fan speed control,• heat/cool switch, fan cycle switch, fresh air switch (if equipped)
Ability to utilize 1-stage or 2-stage thermostat. 2 stage thermostat is capable• of activating emergency heat if an auxiliary heat source is available.
Low ambient protection  see "Microprocessor control board" for• details.
Ability to control a normally-open or normally-closed motor valve switch• (on hydronic heat units only). Valve controls must be ordered for 24V
or line voltage.
All hydronic heat units include molex plugs for connection of hydronic• valve motor.
Remote mount controls include fan speed control and fresh air switch (if• equipped)
All units are equipped with manual reset high pressure switch which• prevents abnormal high pressure operation, increasing compressor reli-
ability.
Microprocessor control board
e universal control board is used in straight cooling, electric resistance• heat, hydronic heat, or cooling/heat pump applications.
Random start timer prevents multiple units from simultaneous startups• aer power interruption or on initial power-up.
Fan purge  fan remains on for 60 seconds aer heat/cool is satised.•
Anti-short-cycle compressor protection prevents the compressor from• rapid cycling, increases compressor reliability.
Freeze-protection prevents evaporator coil freeze up, improving compres-• sor reliability.
Low ambient lockout prevents compressor operation in outdoor tem-• peratures less than 40°F (4.4°C). (On PTHP units supplied with unit-
mounted control, the control causes automatic changeover to auxiliary
heat, if installed.)
Test operation  all timers are temporarily suppressed to allow ease of• testing or troubleshooting.
Control board LED provides self-diagnostic troubleshooting codes, see• "Sequence of operation."
Factory-installed options (consult the factory)
265/277V(12 and 15 only)•
115V (09 &12 Models Only)•
Corrosion-resistant coil option  used for seacoast and harsh-envi-• ronment usage; coated aluminum n/copper tube condenser coil.
Motorized fresh-air damper•
Supplemental electric heat  see heat options on• “Model coding” on
page 7.
Hydronic heat controls•
Front air intake•
Field-installed accessories
Hydronic heat  the coil assembly is shipped loose for eld installation.•
Remote wall thermostat  digital 1-stage or 2-stage available.•
Wall sleeves, louvers, and cabinets•
Aquastat - delays fan start-up until coil reaches 100°F (38°C) to virtually• eliminate "cold" blow condition.
Hydronic control valve , Water 2 way & 3 way•
Hydronic control valve, Steam 2 way•
Hydronic Isolation valve, 1/2 in Sweat Connection.•
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The Right Fit for Comfort 4P/N 240007817, Rev. C [3/30/2010]

R25C | R25H chassisFigure 1
General Product Information (continued)
Thermostat
Fan
Speed
Switch
(FSS)
System
Switch
(SS)
R25
Control
Unit
High Pressure
Switch (HPS)
Fan Cycle
Switch (FCS)
Fresh Air
Switch (FAS)
Line
Cord
OPTIONAL:
Hydronic
NO/NC Switch
Valve Orientation
Switch (VOS)
R25
Base Unit
5 Position
Terminal Block
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P/N 240007817, Rev. C [3/30/2010] 5Made in USA

R25C | R25H chassis Dimensions FrontFigure 2
R25C | R25H chassis Dimensions RearFigure 3
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eplacement Packaged Terminal Air-Conditioning / Heat Pump
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The Right Fit for Comfort 6P/N 240007817, Rev. C [3/30/2010]

PTAC/PTHP Model Coding
Model codingFigure 4
Remote thermostat Sea Coast Coated Coils (Factory Installed, consult factory)
Hydronic Heat
Wall Sleeves. Louvers, & Cabinet (Consult Factory)
Field Installed Accessories [items to be selected during the ordering process]
Chassis coding
[verify with rating plate]
Product Series:
R__C - Straight Cool Unit
R__H - Heat Pump Unit (25 & 30 SeriesOnly)
Design Revision:
A= Revision level
Replacement Options:
A = Standard
Open Options:
A = Standard
C = Coated Coil
Compressor Codes:
A= TECH
L= LG
T= TOSHIBA
Standard/Special:
0= Standard
A - Z = Special option
Air Options:
A = No fresh air damper
B = With fresh air damper
Heat Options (230 Volts):
0= No Elect Heat
2 = 2 KW Elect Heat (Not Available in R40 Series)
3 = 3 KW Elect Heat
4 = 4 KW Elect Heat (Not Available in R40 Series)
5 = 5 KW Elect Heat (Not Available in R40 Series)
Control Options:
0= (UM) unit-mount with elec. heat or no elec.heat
1 = (RMT) remote tstat with elec. heat or no elec. heat
2 = (UM) unit-mount hyd.heat N/O or N/C valve (line volt.)
3 = (RMT) remote Tstat hyd. heat N/O or N/C valve (line volt.)
4 = (UM) unit-mount hyd.heat N/O or N/C valve (24 volt.)
5 = (RMT) remote tstat hyd.heat N/O or N/C valve (24 volt.)
123 546789101112131415
ng
e
]R
Voltage Option:
A - 115 - 1 - 60
D - 208/230 - 1 - 60
E - 265/277 - 1 - 60 (Not Available in R40 Series)
Cooling Capacity (Btuh):
09-09,000 Btuh
12-12,000 Btuh
15-15,000 Btuh
Replacement Packaged Terminal Air-Conditioning / Heat Pum
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P/N 240007817, Rev. C [3/30/2010] 7Made in USA

Features
Indoor coil freeze protection (standard)
is feature will prevent the indoor coil from freeze up in the cooling
mode.
Indoor coil freeze up can occur due to a dirty air lter, restricted• or poor air ow, low refrigerant charge or low room or outdoor
temperatures.
is in turn can cause compressor damage.•
Should a freeze condition be detected, the compressor and outdoor• fan will be switched o for a minimum of three minutes until the
freeze condition is satised.
During this time the indoor fan will continue to run to aid in the•
defrost process.
Condensate removal (standard)
e RetroAire replacement unit (cooling operation) is designed to
eliminate condensate by slinging it onto the outdoor coil.
Condensate drains through the bulkhead to the area near the• outdoor fan.
As part of its normal operation, the unit will produce condensate• and collect it in the base pan of the unit. ere it is picked up by
the outdoor fan slinger ring and deposited onto the condenser coil.
During the cooling season, this improves the unit’s eciency by
maintaining reduced refrigeration system pressures.
Base pan has overow notches, if too much condensate is produced• notches allow condensate to ow out of the basepan and into the
wallsleeve out of the building.
Thermostatic drain pan valve (standard on heat pump units)
On heat pump models (PTHP), condensate can accumulate in the
outdoor drain pan during the heat pump cycle.
PTHP units include a thermostatic drain valve that opens when• outdoor temperatures fall below 60°F (15°C).
When the drain valve opens, condensate ows from the drain pan• onto the boom of the wall sleeve, where it drains to the outside.
is keeps the base pan free of condensate water, which could•
otherwise freeze during colder outdoor temperatures.
Random start feature (standard)
e random start feature is initiated on initial power-up or aer a
power interruption.
e controller adds a random time delay (from 5–120 seconds) on• start-up, preventing the compressor from starting.
is staggers the starting of multiple units in a single facility,• preventing a large surge that might occur if all units started at the
same time.
Anti-short cycle timer (standard)
e microprocessor control uses this timing to prevent short-cycling
of the compressor.
When the compressor cycles o on a heating or cooling call, the• controller starts a 180-second timer.
e compressor will not be allowed to start until this time has• elapsed.
On initial power-up or aer a power failure, this timing occurs aer•
the random start timing.
Power cord with integral safety protection
(standard)
All PTAC/PTHP units rated 250v or less are equipped with a
power cord with integral safety protection as standard.
Providing personal shock protection as well as arcing and re• prevention, the device is designed to sense any damage in the line
cord and disconnect power before a re can occur.
Tested in accordance with Underwriters Laboratories, the cord set• also oers a unique “passive” operation, meaning the unit does not
require reseing if main power is interrupted.
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The Right Fit for Comfort 8P/N 240007817, Rev. C [3/30/2010]

Heat pump
Heat pump units are “Limited Range” and should be equipped with
back-up electric resistance or hydronic heat. Limited Range heat
pumps are designed to operate when outdoor temperatures are
between 75°F(24°C) and 40°F(4.4°C) and with a maximum indoor
temperature of 80°F(26.6°C). e unit is equipped with a reversing
valve that is energized for cooling and de-energized in heating mode.
Electric heating or hydronic heat will operate using the onboard con-
trol logic below the operating conditions of the heat pump.
Hydronic heating (optional)
An optional hydronic heat package may be selected in lieu of electric
heat. Heating operation is essentially the same as that of units with
electric heat.
Aquastat connection (optional)
All replacement PTAC/PTHP's with hydronic heat are supplied with
a standard line volt Aquastat connection. e eld installed Aquastat
delays the fan operation until the hydronic coil reaches a temperature
of 100°F (38°C).
Motorized fresh air damper (optional)
e optional motorized fresh air damper allows fresh air into the space
to be conditioned. When the Fresh Air switch is in the "YES" posi-
tion the damper door is open and allows fresh air into the space. is
feature is only available when the indoor fan is on. When the damper
door switch is in the "NO" position, the damper door is closed and
does not allow air in the space.
Optional wall-mounted thermostats
Thermostats available from EMI
EMI oers a thermostat that is compatible with your PTAC/PTHP
unit.
Select EMI part number 240008208 from the latest RetroAire price• list for this option. is is a single stage, cool/heat, thermostat
that can be used in all RetroAire cooling, heating or heat pump
applications.
The thermostat has an adjustable setpoint range of between• 45°F(7°C) and 90°F(32°C).
For heat pumps another option is EMI part number 240008209.• is is a 2 stage heat/cool thermostat which allows for emergency
heat.
Selecting a thermostat (by others)
When selecting a thermostat other than one oered by EMI, choose
a single stage heat/cool, 24v thermostat.
Straight cooling with electric heat or hydronic heat (R10C
— PTAC's)
Select a thermostat that is compatible with a cooling/electric heat
system.
e thermostat should have “R”, “Y”, “W”, "C" and “G” terminals.
Heat pump with electric heat (R__H - PTHPs)
Select a thermostat that is compatible with a cooling/single-stage
heat/heat pump system.
e thermostat should have "R", "Y", "O" and "G" terminals. RetroAire-
units are single stage heating only.
e eleactric heat and heat pump will not operate simultaneously.
Features
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P/N 240007817, Rev. C [3/30/2010] 9Made in USA

Sequence of Operation
The following Sequence of Operation
applies to PTAC/PTHP units.
e R_ _C units are straight cool, single stage air conditioners avail-
able with electric or hydronic heat.
e R_ _H units are limited range, single stage heat pump. Mechani-
cal compression heating (heat pump mode) is locked out at outdoor
temperatures of approximately 35 ºF (1.7 ºC) and below. Below
these ambient temperatures, the auxiliary electric or hydronic heat
will be used.
General
e unit is controlled by a microprocessor. ermostat and control
connections are made to the control board.
- Control BoardFigure 5
Two conguration jumpers are located on the board, see Figure
8. e Heat Pump Conguration Jumper is a 3 pin jumper.
Straight• Cool units R_ _C, the jumper should be located on the
outside two pins.
Heat• Pump units R_ _H, the jumper should be located on the
inside two pins.
A second conguration jumper “TEST” allows for the control’s inter-
nal timers to be by-passed for test purposes. Placing the jumper on
the two pins enables the test mode.
A status LED (Light Emiing Diode), LED1 is located on the center
of the board. A series of blinks communicates the status of the board.
Between the blink sequence is a separation of approximately 2 seconds.
e Status Code is listed below.
Trouble
Code
(Blinks)
Status
1Normal Operation
2Anti-Short Cycle Timer Active
3Outdoor Coil Freeze Protection
4Indoor Coil Freeze Protection
5Simultaneous “Y” and “W” Call
Initial Power-Up or Power Restoration
When power is applied to the unit, either for the rst time or aer a
power failure, the board will initialize itself. During the initialization,
LED1 will be lit continuously for approximately 5 seconds. Following
the initialization, a random start timer is initiated. is timer adds
a randomly selected 5-120 seconds to the start-up sequence, reduc-
ing the possibility of multiple units starting at the same time. Once
the random start timer has expired, a 180 second Anti-Short Cycle
Timer is initiated and the Processor Board Trouble Code LED is set
to blink a 2 ash code. is timer prevents the compressor from rapid
cycling. Aer the Anti-Short Cycle Timer expires, the Processor Board
Trouble Code LED is set to blink a 1 blink Trouble Code, indicating
normal operation.
R_ _C / R_ _H; Cooling Operation
( For unit mount controls)
With the System Switch [SS] set to “Cool”, and the Fan Cycle Switch
[FCS] set to “On” (Continuous Fan Operation), the indoor fan mo-
tor will start. If the Fan Cycle Switch [FCS] is set to “O” (Cycling
Fan Operation), the indoor fan motor will start with a call for cool-
ing from the internal thermostat [T’stat]. If the unit is equipped
with a Motorized Fresh Air Damper, and is active with the Fresh
Air Switch [FAS], the damper will open with a call for the indoor
fan. If the room temperature is below the thermostat seing the fan
operation will continue as noted above. If the room temperature is
above the thermostat seing, the reversing valve will be energized,
the compressor and outdoor fan will start provided the Anti-Short
Cycle Timer has timed out from the initial power-up, power restora-
tion or a previous compressor on cycle. Operation will continue
until the room temperature satises the thermostat. Once the room
temperature falls below the set point by 3 ºF (2 ºC), the compressor,
outdoor fan motor and reversing valve will de-energize. If the FCS
is set to “O”, the indoor fan will continue to operate for 60 seconds
aer the compressor stops. If the FCS is set to “On”, the indoor fan
will continue to operate. As soon as the compressor is de-energized,
the Anti-Short Cycle Timer will be initialized and will prevent the
compressor from starting again for another 180 seconds. While the
Anti-Short Cycle Timer is active, the Processor Board Trouble Code
LED is set to blink a 2 ash code. Aer the Anti-Short Cycle Timer
expires, the Processor Board Trouble Code LED is set to blink a 1
blink Trouble Code, indicating normal operation.
LED
Indicator
Light
TEST
Config.
Jumper
Heat
Pump
Config.
Jumper
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The Right Fit for Comfort 10 P/N 240007817, Rev. C [3/30/2010]

Sequence of Operation (continued)
NOTE:
Remote-Mount Cooling Operation depends on the features of•
the wall-mounted thermostat. By default the fan will cycle with a
call for cooling. For thermostats with an AUTO / ON fan switch,
the fan will run continuously if this is “ON” (Continuous Fan
Operation). e fan will cycle with a call for cooling if this is set
to “AUTO” (Cycling Fan Operation).
In cooling the units will not start is the indoor air temperature is•
60ºF (15.5 ºC) or below or if the outdoor temperature is below
40ºF (4.5ºC).
R_ _C / R_ _ H; Heating Operation
With the System Switch [SS] set to “Heat”, and the Fan Cycle Switch
[FCS] set to “On” (Continuous Fan Operation), the indoor fan mo-
tor will start. If the Fan Cycle Switch [FCS] is set to “O” (Cycling
Fan Operation), the indoor fan motor will start with a call for heating
from the internal thermostat [T’stat]. If the unit is equipped with a
Motorized Fresh Air Damper, and is active with the Fresh Air Switch
[FAS], the damper will open with a call for the indoor fan. If the
room temperature is above the thermostat seing the fan operation
will continue as noted above. If the room temperature is below the
thermostat seing, the action of the unit will depend on the outdoor
temperature and the freeze sensor status.
NOTE: Remote-Mount Heating Operation depends on the features
of the wall-mounted thermostat. By default the fan will cycle with a
call for Heating. For thermostats with an AUTO / ON fan switch,
the fan will run continuously if this is “ON” (Continuous Fan Opera-
tion). e fan will cycle with a call for heating if this is set to “AUTO”
(Cycling Fan Operation).
R_ _H; Mechanical Heating “Heat Pump"•
”If the outdoor coil temperature remains above 25 ºF (-4 ºC), the
compressor and outdoor fan will start provided the Anti-Short
Cycle Timer has timed out from the initial power-up, power
restoration or a previous compressor on cycle. Operation will
continue until the room temperature satises the thermostat.
Once the room temperature rises above the set point by 3 ºF (2
ºC), the compressor and outdoor fan motor will de-energize. If
the FCS is set to “O ”, the indoor fan will continue to operate
for 60 seconds aer the compressor stops. If the FCS is set to
“On”, the indoor fan will continue to operate. As soon as the
compressor is de-energized, the Anti-Short Cycle Timer will be
initialized and will prevent the compressor from starting again for
another 180 seconds. While the Anti-Short Cycle Timer is active,
the Processor Board Trouble Code LED is set to blink a 2 ash
code. Aer the Anti-Short Cycle Timer expires, the Processor
Board Trouble Code LED is set to ash a 1 blink Trouble Code,
indicating normal operation.
R_ _H; Auxiliary Heating “Electric” or “Hydronic”•
If the outdoor coil temperature falls to 25 ºF (-4 ºC) or below
for 180 seconds at anytime during a heating call, the compressor
and outdoor fan motor will be de-energized and auxiliary heat
will be energized. e Anti-Short Cycle Timer will be initi-
ated, prohibiting compressor operation for 180 seconds. e
Processor Board Trouble Code LED will ash a 3 blink Trouble
Code, indicating auxiliary heat operation. Heating operation
with auxiliary heat will continue until the outdoor coil sensor
reaches 50 ºF (10 ºC).
“Electric Heat”
˚With the System Switch [SS] set to “Heat”, and the Fan Cycle
Switch [FCS] set to “On” (Continuous Fan Operation), the
indoor fan motor will start. If the Fan Cycle Switch [FCS] is
set to “O” (Cycling Fan Operation), the indoor fan motor
will start with a call for heating from the internal thermostat
[T’stat]. If the unit is equipped with a Motorized Fresh Air
Damper, and is activated with the Fresh Air Switch [FAS], the
damper will open with a call for the indoor fan. If the room
temperature is above the thermostat seing the fan operation
will continue as noted above. If the room temperature is below
the thermostat seing, the electric heater is energized until the
room temperature satises the thermostat. Once the room
temperature increases above the set point by 3 ºF (2 ºC), the
electric heaters will de-energize.
“Hydronic Heat”
˚If the FCS is set to “On” (Continuous Fan Operation) and
the unit has an AquaStat, the indoor fan and fresh air motor-
ized damper operation will be controlled by the Aquastat. If
the AquaStat senses a temperature of 80 ± 5 ºF (26 ± 3 ºC)
or below, the indoor fan will shut down and the motorized
damper will close fresh air door. With a call for heat, a signal
from the processor board will activate the water or steam valve.
If the unit is equipped with a eld installed AquaStat [AS], the
indoor fan start will be delayed until the hydronic coil reaches
100 ± 5 ºF (38 ± 3 ºC). e signal to the water or steam valve
will continue until the room temperature rises above the set
point by 3 ºF (2 ºC). If the FCS is set to “O ”, the indoor fan
will continue to operate for 60 seconds or until the hydronic
coil temperature as sensed by the AquaStat reaches 80 ± 5 ºF
(26 ± 3 ºC), whichever occurs rst. If the FCS is set to “On”,
the indoor fan will de-energize if the AquaStat senses a tem-
perature of 80 ± 5 ºF (26 ± 3 ºC) or below.
“Remote Wall Thermostat Controls”
˚Cooling and Heating operates identical to unit mount controls.
See remote controls manual for control details. Remote units
do not use a system switch, or FCS.
Replacement Packaged Terminal Air-Conditioning / Heat Pum
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P/N 240007817, Rev. C [3/30/2010] 11 Made in USA

R25 performance dataTable 1
Model
R25
Cooling Sensible
Heat
Ratio
EER
Heat Pump
COP
Indoor Air
Flow
Fresh Air Inlet
Flow
Shipping
Weight
Btuh (kW) Btuh (kW) CFM (L/s) CFM (L/s) lbs (Kg)
R_ _C 09 9,200 (2.7) 0.74 9.8 N/A N/A 340 35 (17) 140 (64)
R_ _H 09 8100 2.97
R_ _C 12 12,000 (3.5) 0.65 8.7 N/A N/A 340 50 (24) 140 (64)
R_ _H 12 11,600 2.79
R_ _C 15 13,600 (3.98) 0.63 7.9 N/A N/A 325 60 (28) 140 (64)
R_ _H 15 13,500 2.51
Performance Data
R
eplacement Packaged Terminal Air-Conditioning / Heat Pump
•
Insta
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Maintenance Manua
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The Right Fit for Comfort 12 P/N 240007817, Rev. C [3/30/2010]

R25 - 9,000 BTUTable 2 electrical specifications
Power Supply
Volt — 1–60 Compressor Fan Motor Electric Heat Unit Electrical Ratings
Volt Min RLA LRA FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug
208/
230V 197 3.9 20 0.8 0.125
0 N/A N/A N/A
4.7
N/A 5.7 15
6–15P
2208 1963 9.4 10.2 12.6 15
230 2400 10.4 11.2 13.8 15
3208 2454 11.8 12.6 15.5
20 6–20P
230 3000 13 13.8 17.1
4208 2862 13.8 14.6 18.0
230 3500 15.2 16.0 19.8
5208 4089 19.7 20.5 25.4 30 6-30P
230 5000 21.7 22.5 28.0
265V 240 3.32 18.8 0.8 0.125
0 N/A N/A N/A
4.12
N/A 5.0 15
7-20P
2265 3112 11.7 12.5 15.5
20
277 3400 12.3 13.1 16.1
3265 3752 14.2 15 18.5
277 4100 14.8 15.6 19.3
5 N/A N/A N/A N/A N/A N/A N/A
Electrical Specifications
R25 - 12,000 BTUTable 3 electrical specifications
Power Supply
Volt — 1–60 Compressor Fan Motor Electric Heat Unit Electrical Ratings
Volt Min RLA LRA FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug
208/
230V 197 5.6 29 0.8 0.125
0 N/A N/A N/A
6.4
N/A 7.8 15
6–15P
2208 1963 9.4 10.2 12.6 15
230 2400 10.4 11.2 13.8 15
3208 2454 11.8 12.6 15.5
20 6–20P
230 3000 13 13.8 17.1
4208 2862 13.8 14.6 18.0
230 3500 15.2 16.0 19.8
5208 4089 19.7 20.5 25.4 30 6-30P
230 5000 21.7 22.5 28.0
265V 240 4.6 20 0.8 0.125
0 N/A N/A N/A
5.4
N/A 6.6 15
7-20P
2265 3112 11.7 12.5 15.5
20
277 3400 12.3 13.1 16.1
3265 3752 14.2 15 18.5
277 4100 14.8 15.6 19.3
5 N/A N/A N/A N/A N/A N/A N/A
Replacement Packaged Terminal Air-Conditioning / Heat Pum
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P/N 240007817, Rev. C [3/30/2010] 13 Made in USA

Tested/Rated
in Accordance with
ARI 310/380 and
UL Standard 484
IMPORTANT
Due to ongoing product development, designs, specications, and performance are subject to change without notice. Please consult
the factory for further information.
NOTICE
Due to EMI’s ongoing development programs, design, specications, and performance data is subject to change with-
out notice. Please consult the factory for further information. For the most current unit/system performance data,
please refer to our website, at www.ecrinternational.com, or Enviromaster International listing of certied products in
the ARI certied directory, at www.ahridirectory.org.
R25 - 15,000 BTUTable 4 electrical specifications
Power Supply
Volt — 1–60 Compressor Fan Motor Electric Heat Unit Electrical Ratings
Volt Min RLA LRA FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug
208/
230V 197 7.4 33 0.8 0.125
0 N/A N/A N/A
8.2
N/A 10.1 15
6–15P
2208 1963 9.4 10.2 12.6 15
230 2400 10.4 11.2 13.8 15
3208 2454 11.8 12.6 15.5
20 6–20P
230 3000 13 13.8 17.1
4208 2862 13.8 14.6 18.0
230 3500 15.2 16.0 19.8
5208 4089 19.7 20.5 25.4 30 6-30P
230 5000 21.7 22.5 28.0
265V 240 6.0 28.0 0.8 0.125
0 N/A N/A N/A
6.8
N/A 8.3 15
7-20P
2265 3112 11.7 12.5 15.5
20
277 3400 12.3 13.1 16.1
3265 3752 14.2 15 18.5
277 4100 14.8 15.6 19.3
5 N/A N/A N/A N/A N/A N/A N/A
Electrical Specifications (continued)
R
eplacement Packaged Terminal Air-Conditioning / Heat Pump
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Insta
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Maintenance Manua
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The Right Fit for Comfort 14 P/N 240007817, Rev. C [3/30/2010]

Notes
Replacement Packaged Terminal Air-Conditioning / Heat Pum
p
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I
nsta
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ation, O
p
eration, an
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Maintenance Manua
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P/N 240007817, Rev. C [3/30/2010] 15 Made in USA

ECR International Inc
2201 Dwyer Avenue
Utica, NY 13501
e-mail: [e-mail]
An ISO 9001-2000 Certified Company
The Right Fit for Comfort 16 P/N 240007817, Rev. C [3/30/2010]
Warrant
y