R15C - R50C - R55C
R60C/H - R65C
Packaged Terminal Air Conditioner (PTAC)
e Right Fit for Comfort
™
Packaged Terminal Heat Pump (PTHP)
Straight cooling nominal capacities
Btuh 9,000 12,000 15,000 18,000
kW 2.6 3.5 4.4 5.3
R15C
R50C
Model
Btuh 9,000 12,000 15,000
kW 2.6 3.5 4.4
Model R60H
R55C
R60C
R65C
Heat pump nominal capacities
Installation, Operation,
ECR International Inc
2201 Dwyer Avenue
Utica, NY 13501
e-mail: info@RetroAire.com
An ISO 9001-2008 Certified Company
& Maintenance Manual
R15C
Replacement for:
American Air Filter series 25 & Others,
American Standard 41
R55C
Replacement for:
Remington EB
R65C
Replacement for:
Reminton, Singer,
McQuay J/EJ and others
R50C
Replacement for:
Dunham/Bush Newport
Models I, II, III, IV
R60C | R60H
Replacement for:
Remington , Singer, or Mcquay K/EK
P/N 240008223, Rev. K [05/14/2012]
Contents
•
Installation, Operation, and Maintenance Manual •
Read This First
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
Field-installed options . . . . . . . . . . . . . . 4
R15C/R15H Chassis . . . . . . . . . . . . . . . 5
R50C/R50H Chassis . . . . . . . . . . . . . . 6-7
R55C/R55H Chassis . . . . . . . . . . . . . . . 8
R60C/R60H Chassis . . . . . . . . . . . . . . . 9
R65C/R65H Chassis . . . . . . . . . . . . . . .10
(consult the factory) . . . . . . 4
PTAC/PTHP Model Coding 11-12
Features 13-14
Optional wall-mounted thermostats . . . . . . . . . 14
Preparing for the Installation of the PTAC/PTHP 15
Electrical power connection . . . . . . . . . . . . 15
Remove the old chassis . . . . . . . . . . . . . . 15
Installation Instructions — R15C 16-19
Field Installation of Sensor Wires — R65C 28-29
Sequence of Operation 30-31
Initial Power-Up or power restoration . . . . . . . .30
R_ _C / R_ _H: Cooling Operation . . . . . . . . . .30
R_ _C / R_ _H: Heating Operation . . . . . . . . . .31
R_ _H: Mechanical Heating "Heat Pump" . . . . . . . 31
R_ _H: Auxiliary Heating "Electric" or "Hydronic" . . . . 31
Final Inspection & Start-up 32-37
Before operating the unit . . . . . . . . . . . . .34
Setting the control board jumpers. . . . . . . . . . 34
Start Up . . . . . . . . . . . . . . . . . . . .34
Unit-mounted thermostat . . . . . . . . . . . . .34
Remote-mounted thermostat . . . . . . . . . . .34
Straight cooling PTAC's . . . . . . . . . . . . 34-35
Heat Pump PTHP's . . . . . . . . . . . . . . 35-37
Start-up . . . . . . . . . . . . . . . . . . . .37
Maintenance & Troubleshooting 38-40
Monthly inspection and maintenance . . . . . . . . 38
Seasonal start-up and maintenance . . . . . . . 38-39
Heat pump units — temporary emergency heating mode 39
Troubleshooting sensors . . . . . . . . . . . . .39
Troubleshooting . . . . . . . . . . . . . . . . 40
Installation Instructions — R50C 20-21
Installation Instructions — R55C 22-23
Installation Instructions — R60C | R60H 24-25
Installation Instructions — R65C 26-27
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_________________________________
Performance Data 41
Electrical Speci cations 42-47
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.
The Right Fit for Comfort 2 P/N 240008223, Rev. K [05/14/2012]
eplacement Packaged Terminal Air-Conditioning / Heat Pump
•
nstallation, Operation, and Maintenance Manual
Read This First (continued)
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 11 .
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.
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, explosion or electrical shock causing property damage, personal
injury or death.
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 responsible for ling any necessary claims with the carrier.
Customer Service : (800) 228-9364
P/N 240008223, Rev.K [05/14/2012] 3 Made in USA
WARNING — Safety instructions
Save these instructions — this manual is intended as an
aid to quali ed service personnel for proper installation,
operation, and maintenance of the RetroAire replacement
PTAC/PTHP.
Read all instructions thoroughly and carefully before attempting 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 o 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 installation, operation, service, or maintenance, possibly resulting in re,
electrical shock, property damage, personal injury, or death.
Installation, Operation, and Maintenance Manual •
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 Standards 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 performance.
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 reliability.
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, improv ing 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 unitmounted 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 11 .
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.•
The Right Fit for Comfort 4 P/N 240008223, Rev. K [05/14/2012]
eplacement Packaged Terminal Air-Conditioning / Heat Pump
•
nstallation, Operation, and Maintenance Manual
General Product Information (continued)
R15C | R15H chassisFigure 1
T41 Bracket
T25 Bracket
Blower
Unit Mount Controls
Fan
Speed
Switch
(FSS)
Thermostat
System
Switch
(SS)
Remote Controls
Fan
Speed
Switch
(FSS)
Control
Chassis
Electrical
Diagram
Rating
Plate
Electrical
Diagram
Found on
Inside
of Panel
Box
High Pressure
Switch (HPS)
Fan Cycle
Switch (FCS)
Fresh Air
Switch (FAS)
Hydronic
NO/NC Switch
Line
Cord
P/N 240008223, Rev.K [05/14/2012] 5 Made in USA
Installation, Operation, and Maintenance Manual •
R50C ChassisFigure 2
Manual
Fresh Air
Removeable Control
Box Cover
Fan
Cycle
Switch
5-POS
Molex
Power
Connections
3-POS
Molex
UM or RMT
Connections
High
Pressure
Switch
(HPS)
The Right Fit for Comfort 6 P/N 240008223, Rev. K [05/14/2012]
Hydronic
NO/NC Switch
Valve Orientation
Switch (VOS)
4-POS
Molex
6-POS
Molex
5-POS
Molex
Hydronic Motor
Connections
2-POS
Molex
4 -POS
Thermostat
•
Fan Motor
Power and Fan
Speed
eplacement Packaged Terminal Air-Conditioning / Heat Pump
nstallation, Operation, and Maintenance Manual
R50C Blower SectionFigure 3
R50C Control BoxFigure 4
Elec HT
Power
Plug
Fan
Speed
Switch
(FSS)
System
Switch
(SS)
Remote
Connections
P/N 240008223, Rev.K [05/14/2012] 7 Made in USA
Thermostat
R55C Figure 6
Thermostat
p
Speed
Switch
(FSS)
|
R55H chassis
Fan
Replacement Packaged Terminal Air-Conditioning / Heat Pum
Installation, Operation, and Maintenance Manual •
C55
Control
B55
Thermostat
Line
Cord
Unit
System
Switch
(SS)
Blower
Unit
Aquastat
W/ Jumper
The Right Fit for Comfort 8 P/N 240008223, Rev. K [05/14/2012]
Hydronic
NO/NC Switch
Valve Orientation
Switch (VOS)
High
Pressure
Switch
(HPS)
R55
Base
Unit
R60C Figure 7
Wire Diagram
located on back
side of cover
•
|
R60H chassis
B60
eplacement Packaged Terminal Air-Conditioning / Heat Pump
nstallation, Operation, and Maintenance Manual
Blower
Unit
Fan
Speed
Switch
(FSS)
Thermostat
System
Switch
(SS)
C60
Control
Unit
R60
Base
Unit
Rating
Plate
Wire Diagram
located on back
side of cover
High Pressure
Switch (HPS)
Fan Cycle
Switch (FCS)
Fresh Air
Switch (FAS)
Hydronic
NO/NC Switch
Valve Orientation
Switch (VOS)
Line
Cord
P/N 240008223, Rev.K [05/14/2012] 9 Made in USA
|
p
R65C Figure 8
R65H chassis
B65 Blower
Replacement Packaged Terminal Air-Conditioning / Heat Pum
Installation, Operation, and Maintenance Manual •
R65 Chassis
C65 Control Panel
C65 Control
Unit Mount Remote
Fan
Speed
Switch
(FSS)
Thermostat
System
Switch
(SS)
Fan Cycle
Switch (FCS)
The Right Fit for Comfort 10 P/N 240008223, Rev. K [05/14/2012]
Hydronic
NO/NC Switch
Valve Orientation
Switch (VOS)
eplacement Packaged Terminal Air-Conditioning / Heat Pump
•
nstallation, Operation, and Maintenance Manual
PTAC/PTHP Model Coding
Model codingFigure 9
Chassis coding
[verify with rating plate]
123 546789101112131415
]
R
Product Series:
R__C - Straight Cool Unit (15,50,55,60,65 ONLY )
R__H - Heat Pump Unit (Only 60)
Cooling Capacity (Btuh):
09-09,000 Btuh (15,50,55,60,65 Only)
12-12,000 Btuh (15,50,55,60,65 Only)
15-15,000 Btuh (15,50,60 Only)
18-18,000 Btuh (Straight Cool 15,50,60 Only)
Voltage Option:
A - 115 - 1 - 60(15,50,65 Only)
D - 208/230 - 1 - 60(15,50,55,60,65 Only)
E - 265/277 - 1 - 60 TBD(15,50,60 Only)
Heat Options (230 Volts):
0 = No Elect Heat
= 2 KW Elect Heat
2
= 3 KW Elect Heat
3
= 4 KW Elect Heat
4
= 5 KW Elect Heat
5
= Hydronic Heat - 1 ROW STEAM COIL (Factory Install 60 Only)
6
7 = OPEN
= Hydronic Heat - 1 ROW HYD COIL (Factory Install 60 Only)
8
9 = Hydronic Heat - 2 ROW HYD COIL (Factory Install 60 Only)
Control Options:
0 = (UM) unit-mount with elec. heat or no elec. heat
= (RMT) remote tstat with elec. heat or no elec. heat
1
= (UM) unit-mount hyd. heat N/O or N/C valve (line volt.)
2
= (RMT) remote tstat hyd. heat N/O or N/C valve (line volt.)
3
= (UM) unit-mount hyd. heat N/O or N/C valve (24 volt.)
4
= (RMT) remote tstat hyd. heat N/O or N/C valve (24 volt.)
5
Design Revision:
= Revision level
A
Standard/Special:
= Standard
0
= Special option
A-Z
Compressor Codes:
= TECH
A
= LG
L
= TOSHIBA*
T
Condender Coil/Hydronic Options:
=Standard
A
=LT Supply/LT Return(R60 Only)
B
=LT Supply/RT Return or RT Supply/LT Return(R60 Only)
C
=RT Supply/RT Return(R60 Only)
D
=No Heat or with Elect Heat and Coated Coil(R60 Only)
E
=LT Supply/LT Return and Coated Coil(R60 Only)
F
=LT Supply/RT Return or RT Supply/LT Return and
G
Coated Coil(R60 Only)
=RT Supply/RT Return and Coated Coil(R60 Only)
H
Replacement Options:
=Standard or("A"Series C90)or(No Receptacle C50)(R65-Standard)
A
=(Type 41-B or C15 Only)or("B" Series C90)or(Flat Top B or C60)
B
or (20amp recept - 2.5kw@230v or 3.5kw@277v - C50 Only)
=(Type 25-B or C 15 Only) or ("C" Series C90) or
C
(Slope Top B or C60) or (30amp recept - 3.9kw
Air Options:
=No fresh air damper
A
=With fresh air damper
B
Field Installed Accessories [items to be selected during the ordering process]
Remote thermostat Sea Coast Coated Coils (Factory Installed, consult factory)
Hydronic Heat
Wall Sleeves. Louvers, & Cabinet (Consult Factory)
* Toshiba compressor subject to factory availability
P/N 240008223, Rev.K [05/14/2012] 11 Made in USA
Blower/Control Section Modular PTAC - 15,50,55,60,65,90
123
R
Product Series:
B or C_ _ "B" for Blower Section
"C" for Control Section
Installation, Operation, and Maintenance Manual •
PTAC/PTHP Model Coding
4
5678910111213
Design Revision:
= Revision Level
A
Straight Cool or Heat Pump:
C - Straight Cool Control Box for
(15,50,55,60,65 Only)
H - Heat Pump Control Box (Only 60,90)
U - Blower Section Only
Voltage Option:
A - 115 - 1 - 60(15,50,65,90 Only)
D - 208/230 - 1 - 60(15,50,55,60,65,90 Only)
E - 265/277 - 1 - 60 TBD(15,50,60,90 Only)
Heat Options (230 Volts):
0 = No Elect Heat
= 2 KW Elect Heat
2
= 3 KW Elect Heat
3
= 4 KW Elect Heat
4
= 5 KW Elect Heat
5
= Hydronic Heat - 1 ROW STEAM COIL (Factory Install 60 Only)
6
7 = OPEN
= Hydronic Heat - 1 ROW HYD COIL (Factory Install 60 Only)
8
9 = Hydronic Heat - 2 ROW HYD COIL (Factory Install 60 Only)
A = Control Box Model Only
Control Options:
0 = (UM) unit-mount with elec. heat or no elec. heat
= (RMT) remote tstat with elec. heat or no elec. heat
1
= (UM) unit-mount hyd. heat N/O or N/C valve (line volt.)
2
= (RMT) remote tstat hyd. heat N/O or N/C valve (line volt.)
3
= (UM) unit-mount hyd. heat N/O or N/C valve (24 volt.)
4
= (RMT) remote tstat hyd. heat N/O or N/C valve (24 volt.)
5
= Blower Section Only
A
Open Options:
A
Hydronic Options:
= Standard
A
= LT Supply/LT Return(B60 Only)
B
= LT Supply/RT Return - STEAM OR HYD or
C
RT Supply/LT Return - HYD Only (B60 Only)
= RT Supply/RT Return (B60 Only)
D
= RT Supply/LT Return (B60 STEAM Only)
E
Replacement Options:
= Standard or("A"Series C90)or(No Receptacle C50)
A
= (Type 41-B or C15 Only) or ("B" Series C90) or (Flat Top B or C60)
B
or (20amp recept - 2.5kw@230v or 3.5kw@277v - C50 Only)
= (Type 25-B or C 15 Only) or ("C" Series C90) or
C
(Slope Top B or C60) or (30amp recept - 3.9kw@230v - C50 Only)
Air Options:
= No fresh air damper (C_ _ Only)
A
= With fresh air damper (C_ _ Only)
B
= Blower Section Only
U
Standard/Special:
0
A-Z
= Standard
= Standard
= Special option
The Right Fit for Comfort 12 P/N 240008223, Rev. K [05/14/2012]
eplacement Packaged Terminal Air-Conditioning / Heat Pump
•
nstallation, Operation, and Maintenance Manual
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.
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 (f rom 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 co rd with integral safety protection
(standard)
Thermostatic drain pan valve
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.
(standard on heat pump units)
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.
P/N 240008223, Rev.K [05/14/2012] 13 Made in USA
Replacement Packaged Terminal Air-Conditioning / Heat Pum
p
Installation, Operation, and Maintenance Manual •
Features
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" position 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. RetroAireunits are single stage heating only.
e eleactric heat and heat pump will not operate simultaneously.
The Right Fit for Comfort 14 P/N 240008223, Rev. K [05/14/2012]
eplacement Packaged Terminal Air-Conditioning / Heat Pump
•
nstallation, Operation, and Maintenance Manual
Preparing for the Installation of the PTAC/PTHP
WARNING
Moving parts can cause personal injury. Avoid contact with
moving parts when testing or servicing the unit.
Verify existing wall sleeve/enclosure:
RetroAire replacement PTAC/PTHP's are to be used with
metal wall sleeves.
e existing front panels must be secured by screws that prevent
contact with all parts.
Minor dimensions of openings must not exceed ½ inch
(12.5mm).
e indoor air discharge grill must have dimensions not less than
26” x 4”. e grill must separate the top surface of the chassis
from the top surface of the discharge grill by a minimum of 1
in (25.4mm).
For all models, the outdoor openings must prevent contact
of all moving parts by means of louvers or grills, with minor
dimension not exceeding 1 in (25.4mm).
Electrical supply
Each unit must have a separate branch circuit protected by a fuse
or breaker. Refer to the unit rating plate for the proper w ire and
breaker or fuse size. Use of extension cords is prohibited.
DO NOT connect the RetroAire unit to a circuit with an
incorrectly-sized overcurrent-protection device.
All cord-connected 265-volt units must be plugged into receptacles within the unit subbase or chassis.
Electrical powe r connection
Check the RetroAire unit rating plate for circuit ampacity and 1.
required breaker or fuse size.
Verify that the existing breaker or fuse is the correct size.2.
Replace the breaker or fuse if incorrectly-sized.a.
Breakers must be type HACR only.b.
Cord-connected units verify that the wall outlet is the correct 3.
rating. e outlet's blade con guration must match that of the
cord supplied with the RetroAire unit.
Hard-wired units verify that the power wiring is correctly sized. 4.
Inspect the existing wiring for any de ciencies, such as cuts or
frayed wires. Replace such wiring if found.
Remove the old chassis
Disconnect power or unplug cord before proceeding. 1.
See WARNING at le .
Remove the front of the existing room enclosure to expose the 2.
old chassis.
Loosen any tie-down bolts or screws and remove the old chassis. 3.
NOTICE
Dispose of the old chassis following existing state and federal
regulations.
Electrical shock hazard Before opening the existing
unit:
Open the power supply disconnect switch. Secure it in an open
position during installation. A ach a sign stating, "
TURN ON.
On a plug and receptacle connection, unplug the existing unit at
the wall outlet. DO NOT plug in the new unit until installation is
complete and the start-up checklist has been completed.
Failure to comply with the above could result in severe personal
injury, death or substantial property damage.
"
DO NOT
NOTICE
All wiring should be in accordance with both the National
Electric Code (NEC) and the local building codes.
UNITS RATED 208/230V the RetroAire unit is wired for
230v primary voltage from the factory. e transformer must
be rewired by the installer if the jobsite voltage is 208v. Change
the transformer tap from orange to red. See the wiring diagram
for details.
Inspect the wall sleeve/cabinet for any rust, holes, or damage.4.
Clean the wall sleeve of any dirt.a.
Repair any damage.b.
Ensure proper drainage of condensate or rainwater to exterior c.
of building.
Remove or repair the old weather seals and make note of the 5.
location for the installation of any new seals.
Check the wall sleeve/cabinet to ensure all drain holes are open 6.
and that:
e wall sleeve/enclosure is level le to righta.
e back is pitched to the outside by ½in (12.5mm) maxi-b.
mum.
Before installing the new chassis, inspect the outdoor louver for a 7.
minimum free area of 70% and remove any obstr uctions. Obstructions will restrict air ow over the condenser coil and may cause
serious damage to the chassis. It will also void the warranty.
See the instructions for the speci c RetroAire unit on the fol-8.
lowing pages.
DO NOT9. connect power to the unit or plug in the cord until all
instructions in this manual have been followed.
P/N 240008223, Rev.K [05/14/2012] 15 Made in USA
Replacement Packaged Terminal Air-Conditioning / Heat Pum
p
Installation, Operation, and Maintenance Manual •
Installation Instructions — R15C
Installation
Verify the existing wall thickness1. e distance from the
condenser coil to the outdoor louver varies with sleeve depth,
unit(s) ship standard with several sets of ba es. In addition, EMI
stocks an optional condenser-side air ba e kit for chassis installation in deeper-than-standard wall sleeves. For fast, trouble-free
installation, know your wall sleeve depth when ordering.
Install the ba es2. Remove sets of ba es from the kit bag
supplied with unit. Install only one set of le and right side ba es
on the condenser coil
Choose the proper ing ba es for your application by verifying •
selected ba es come in contact with the outdoor louver.
Install Top ba e•
Make sure the ba es are directed inward toward the center of •
coil (see Figure 11).
Secure ba es tightly into the existing holes of the condenser coil •
using the screws provided.
Contents of Install Kit
(1) Top Ba e
(2) Size 1 left and right ba es only
(2) Size 2 left and right ba es
(2) Size 3 left and right ba es
(2) Size 4 left and right ba es
Install Thermostat Bulb and lter3.
Insert grommets into clips.•
Insert Sensing bulb into grommets.•
Insert ermostat Bulb assembly into middle section of indoor •
coil. (see gure 12)
Fasten lter using velcro strips.•
Install the foam tape4. Apply ”
to both weather angles, this prevents outside air from entering
around the chassis to the room from the sides (see Figure 13).
Install 1" x 1" open cell foam to back of unit above condenser coil.
It is imperative to have a solid air seal between the wall sleeve and
the chassis. Failure to do so will result in air leakage from outdoor
to indoor causing system problems (example — coils eezing, short
cycling, and constant running of unit). If there is a need for more
foam than supplied in kit, consult the factory.
Contents of install kit
(3ft) 1"x 1" Open cell foam
(5ft) 1/2" x 1/2" Open cell foam
(6.6ft) 1" x 1/2" Open cell foam
by completing steps below
x
”
open-cell foam strips
:
It is necessary to know where the coil is to be located and the
physical size of the coil so the new coil can be veri ed if ordered
for replacement. e new coil should be installed in the same
manner as the coil it is replacing.
Remove the 4-position connector assembly from kit bag supplied •
with unit (this will have 2 yellow wires a ached).
Connect this 4-position connector to the 4-position connection •
located on the front of the unit.
Splice the yellow wires to the valve motor using 2-crimp pop-•
corns.
Connecting the accessory Aquastat6. If the accessory
Aquastat has been ordered then it will need to be eld installed.
Remove the black jumper wire located on the front of the unit •
(this is terminated with a 2-position connector).
Cut the jumper wire in the middle and splice the Aquastat to the •
jumper., using 2-crimp popcorns.
Place the connector back into original location. Refer to the wir-•
ing diagram on the unit for details.
Secure the chassis7. Ensure all seals are in the proper loca-
tions, the correct ba es are a ached to the condenser coil, and in
the proper orientation, then slide the unit into nal position and
tighten any tie down bolts or screws as necessary.
Hard-wired units8. If the unit is hard wired, follow the in-
structions on page15 to verify existing wiring and overcurrent
protection. Remove the line cord wires from the PTAC/PTHP
power entrance terminals. Route the power supply wiring through
a strain-relief bushing and connect leads to the power entrance
terminals. Secure the strain-relief clamp. (If wiring is through
conduit, insert the conduit through the control box knockout
and secure in place.) DO NOT turn on power until completing
instructions in "Final Inspection and Startup" on page 32 .
DO NOT PLUG IN the line cord, if in used condition9. . Follow
instructions in "Final Inspection and Startup" on page 32 .
Connecting the optional hydronic coil controls5. If the
hydronic heat option has been ordered, then the hydronic coil
will need to be eld installed on the new unit. Hydronic coils
are not factory installed and need to be ordered. e coil with
the old unit can be located in the subbase, under the chassis in a
special a achment, or above the chassis in a special a achment.
The Right Fit for Comfort 16 P/N 240008223, Rev. K [05/14/2012]
eplacement Packaged Terminal Air-Conditioning / Heat Pump
•
nstallation, Operation, and Maintenance Manual
Installation Instructions — R15C (continued)
PP
LQ
PP
LQ
Figure 10 R15C/R15H chassis and installation kit con-
tents
PP
LQ
Figure 11 Ba es
PP
LQ
PP
LQ
PP
LQ
PP
LQ
Velcro
strips
Weather angles can be reversed to change o setFigure 12
Type 25
WeatherAngle
Type 41
WeatherAngle
Size 1
Size 2
Size 3
Size 4
Sensing
Bulb
Figure 13 Direction of ba es and foam installation
Ba es
Foam open cell
1" x 1"
Top View of Ba es
P/N 240008223, Rev.K [05/14/2012] 17 Made in USA
Foam open cell 1/2" x 1/2" Both Sides of
unit (type41 weather angle shown)
Replacement Packaged Terminal Air-Conditioning / Heat Pum
p
Installation, Operation, and Maintenance Manual •
Installation Instructions — B15C
1. Remove existing wire ties holding shown wires on blower deck
2. Guide wire harness and 4 position molex from B15 into R15 chassis plenum as show bellow
The Right Fit for Comfort 18 P/N 240008223, Rev. K [05/14/2012]
eplacement Packaged Terminal Air-Conditioning / Heat Pump
•
nstallation, Operation, and Maintenance Manual
Installation Instructions — B15C (continued)
3. Rear view of installed B15 wire harness and 4 position molex
YELLOW
WIRE TO
CAPACITOR
4. Front view of R15 Unit with installed B15 wire harness and 4 position molex
GREEN
GROUND
WIRE
MOTOR
WIRES
P/N 240008223, Rev.K [05/14/2012] 19 Made in USA
INSTALLATION FOR NEW CONSTRUCTION
p
Installation Instructions — R50C | R50H
|
R50C Figure 14
R50H chassis and installation kit contents
Replacement Packaged Terminal Air-Conditioning / Heat Pum
Installation, Operation, and Maintenance Manual •
Installation kit contents
Installation manual•
(Size 1) le & right ba es•
(Size 2) le & right ba es•
” x ” open-cell foam tape•
1” x 1” open-cell foam tape•
Screws 4•
Optional hydronic heat
controls
(1) 2-position connector •
(2) Pin mate•
Installation
Verify the existing wall thickness1. e distance from the
condenser coil to the outdoor louver varies with sleeve depth. Two
sets of air ba es are included with each unit to accommodate most
installation requirements. Other air ba e kits are available from
the factory (unique for applications). Know the wall sleeve depth
when ordering to ensure proper ba e size.
Verify Weather Angle2. Slide the unit into the wall sleeve.
If the supply duct on the cooling chassis does not line up with
the supply vent on the room cabinet, it is possible that factory
installed the weather angles on the top and the sides will have to
be reversed. is will allow approximately 1” of adjustment for
alignment with the supply vent when mounting the unit to the
wall sleeve (see Figure 14 and Figure 15). Slide the unit back in
the wall sleeve to verify proper t.
Ba esFigure 15
Optional Aquastat
Connection (Hydronic
heat option only) -
(1) 14 AWG black wire•
Adjustable Weather Angle
Dimension "A" 8 5/8” 7 7/8” 9 11/16”
Dimension "B" 9 1/2” 10 1/4” 8 7/16”
Dimensions are calculated without foam gaskets.
(1) Standard position — Factory installed.
(2) Position for Climate Master 702 and 703.
(1)
(1)
10 1/8”
Weather Angle reversed to change offset
Install the ba es3. Slide the unit back out of the wall sleeve.
Remove both sets of ba es from the kit bag supplied with unit.
Install only one set of le and right side ba es on the condenser
coil
by completing steps below
Choose the proper ing ba es for your application by verifying •
selected ba es come in contact with the outdoor louver.
Make sure the ba es are directed inward toward the center of •
coil (see Figure 16 ).
Secure ba es tightly into the existing holes of the condenser coil •
using the screws provided.
:
8”
(2)
(2)
The Right Fit for Comfort 20 P/N 240008223, Rev. K [05/14/2012]
eplacement Packaged Terminal Air-Conditioning / Heat Pump
•
nstallation, Operation, and Maintenance Manual
Installation Instructions — R50C | R50H (continued)
NOTICE
e correct condenser air ba es must be installed or performance
may be impaired.
Install the foam tape4. Apply ” x ” open-cell foam strips
around supply air duct to ensure that all the conditioned air is
delivered into the room (see Figure 16 ). Failure to do so results
in recirculation of the conditioned air around the cabinet causing
the unit to short cycle and coil to freeze.
Direction of ba es and foam installationFigure 16
Connecting the accessory Aquastat7. If the accessory
Aquastat has been ordered, then it will need to be eld installed.
Remove the black jumper wire located on the bo om panel of the •
control box (this is also terminated with a 2-position connector).
Cut the jumper wire in the middle and splice the Aquastat to •
the jumper.
Place the connector back into the original location. Refer to the •
wiring diagram on the unit for details.
Secure the chassis8. A er ensuring that all seals are the
correct size and in the proper location and the correct ba es are
a ached to the condenser coil in the proper orientation, slide
the unit into the nal position and tighten any tie down bolts or
screws as necessary.
Hard-wired units9. If the unit is hard wired, follow the in-
structions on page 15 to verify existing wiring and overcurrent
protection. Remove the line cord wires from the PTAC/PTHP
power entrance terminals. Route the power supply wiring through
a strain-relief bushing and connect leads to the power entrance
terminals. Secure the strain-relief clamp. (If wiring is through
conduit, insert the conduit through the control box knockout
and secure in place.) DO NOT turn on power until completing
instructions in "Final Inspection and Startup" on page 32 .
DO NOT PLUG IN the line cord, if used10. . Follow instructions
in "Final Inspection and Startup" on page 32 .
Install the foam tape5.
the weather angle to prevent outside air from entering around the
cooling chassis to the room from the sides and top of the cabinet.
Install between the wall sleeve and the chassis (see Figure 14 ). It
is imperative to have a solid air seal between the wall sleeve and
the chassis. Failure to do so will result in air leakage from outdoor
to indoor causing system problems (example — coils eezing, short
cycling, and constant running of unit). If there is a need for more
foam than supplied in kit, consult the factory.
Connecting the optional hydronic coil controls6. If the
hydronic heat option has been ordered, then the hydronic coil
will need to be eld installed on the new unit. Hydronic coils
are not factory installed and need to be ordered. e coil with
the old unit can be located in the subbase, under the chassis in a
special a achment, or above the chassis in a special a achment.
It is necessary to know where the coil is to be located and the
physical size of the coil so the new coil can be veri ed if ordered
for replacement. e new coil should be installed in the same
manner as the coil it is replacing.
Remove the 2-position connector assembly from kit bag supplied •
with unit (this will have 2 yellow wires a ached).
Connect this 2-position connector to the 2-position connection •
located on the bo om of the control box panel.
apply 1” x 1” open-cell foam strips to
P/N 240008223, Rev.K [05/14/2012] 21 Made in USA
Replacement Packaged Terminal Air-Conditioning / Heat Pum
p
Installation, Operation, and Maintenance Manual •
Installation Instructions — R55C | R55H
|
R55C Figure 17
R55H chassis and installation kit contents
Cabinet
Installation
Verify the existing wall thickness1. the distance from the
condenser coil to the outdoor louver varies with the sleeve depth.
Each chassis includes a ½" air ba e to accommodate the most
common condenser coil to outdoor louver requirements. In addition, ECR International stocks an optional condenser-side air
ba e kit for chassis installation in deeper than standard walls.
Wall
Sleeve
Installation kit contents
Installation manual•
(1 set) le & right ba es•
1” x 1” open-cell foam tape•
Screws 4•
Optional hydronic
heating Controls
(1) 2-position connector •
(2) Pin mate•
Optional Aquastat Connector (Hydronic Heat
Option Only)
(1) 14 AWG black wire•
Install the ba es3. slide the unit back out of the wall sleeve.
Remove the ba es from the kit bag supplied with unit. Install
the le and right side ba es on the condenser coil
steps below
Ba es must come in contact with the outdoor louver. •
Make sure the ba es are directed inward toward the center of •
coil (see Figure 19 ).
Secure ba es tightly into the existing holes of the condenser coil •
using the screws provided.
:
by completing
Direction of ba esFigure 18
Baffl es
Verify air supply alignment — 2. slide the unit into the wall-
sleeve. e supply duct on the cooling chassis should line up with
the supply vent on the room cabinet.
The Right Fit for Comfort 22 P/N 240008223, Rev. K [05/14/2012]
Install 2" x " foam tape
Weather AngleFigure 19
Install 2" x " foam tape
Weather
Angle
eplacement Packaged Terminal Air-Conditioning / Heat Pump
•
nstallation, Operation, and Maintenance Manual
Installation Instructions — R55C | R55H (continued)
NOTICE
e correct condenser air ba es must be installed or performances
may be impaired.
Install the foam tape5. apply 1” x 1” open-cell foam strips
to the weather angle to ensure that all the conditioned air is delivered into the room (see Figure 19 ). Failure to do so results in
recirculation of the conditioned air through the cabinet causing
the unit to short cycle, and coil to freeze.
NOTICE
e R35C/H is equipped with a bracket that allows the unit to
be adjusted up and down in the chassis of un-leveled wall sleeves.
Adjust leveler leg to desired height and tighten down using bolts
supplied on bracket (see Figure 20 ).
Front view of chassisFigure 20
Connect this 2-position connector to the 2-position connection •
located on the bo om of the control box panel.
Connecting the accessory Aquastat7. if the accessory
Aquastat has been ordered then it will need to be eld installed.
Remove the black jumper wire located on the bo om panel of the •
control box (this is also terminated with a 2-position connector).
Cut the jumper wire in the middle and splice the Aquastat to •
the jumper.
Place the connector back into original location. Refer to the wir-•
ing diagram on the unit for details.
Secure the chassis8. a er ensuring that all seals are the cor-
rect size and in the proper location and the correct ba es are
a ached to the condenser coil and in the proper orientation,
slide the unit into nal position and tighten any tie down bolts or
screws as necessary.
Hard-wired units9. If the unit is hard wired, follow the in-
structions on page 15 to verify existing wiring and overcurrent
protection. Remove the line cord wires from the PTAC/PTHP
power entrance terminals. Route the power supply wiring through
a strain-relief bushing and connect leads to the power entrance
terminals. Secure the strain-relief clamp. (If wiring is through
conduit, insert the conduit through the control box knockout
and secure in place.) DO NOT turn on power until completing
instructions in "Final Inspection and Startup" on page 32 .
DO NOT PLUG IN the line cord, if used10. . Follow instructions
in "Final Inspection and Startup" on page 32 .
Connecting the hydronic coil6. if the hydronic heat option
has been ordered, then the hydronic coil will need to be eld
installed on the new unit. Hydronic coils are not factory installed
and need to be ordered. e coil with the old unit can be located
in the subbase, under the chassis in a special a achment, or above
the chassis in a special a achment. It is necessary to know where
the coil is to be located and the physical size of the coil so the new
coil can be veri ed if ordered for replacement. e new coil should
be installed in the same manner as the coil it is replacing.
Remove the 2-position connector assembly from kit bag supplied •
with unit (this will have 2 yellow wires a ached).
P/N 240008223, Rev.K [05/14/2012] 23 Made in USA
Installation Instructions — R60C | R60H
p
|
R60C Figure 21
R60H chassis and installation kit contents
Replacement Packaged Terminal Air-Conditioning / Heat Pum
Installation, Operation, and Maintenance Manual •
Installation kit contents
Installation manual•
(Size 1) le & right ba es •
(Size 2) le & right ba es•
” x ” open-cell foam tape•
1” x 1” open-cell foam tape•
Screws 4•
Optional hydronic heat
control
(1) 2-position connector•
(2) Pin mate•
Optional Aquastat Connector (hydronic heat
option only)
(1) 14 AWG black wire•
Install Ba esFigure 22
Ba es
Coil
Verify the existing wall thickness1. e distance from the
condenser coil to the outdoor louver varies with wall sleeve depth.
Several sets of air ba es are included with each unit to accommodate most installation requirements. Other air ba e kits are
available from the factory (unique for applications). Have the wall
sleeve depth ready when ordering to ensure proper ba e size. Do
not install at this time.
Slide the unit into the wall sleeve2. . If the supply duct on the
cooling chassis does not line up with the supply vent on the room
cabinet, it is possible that factory installed the weather angle on the
top and the sides will have to be modi ed or reoriented. is will
allow for adjustment to align with the supply vent when mounting
the unit to the wall sleeve (see Figure 22 ). Slide the unit back in
the wall sleeve to verify proper t.
Weather Angles reversed to gain extra distanceFigure 23
Wall Sleeve
Ba e
Distance
Weather
Angle / Stop
The Right Fit for Comfort 24 P/N 240008223, Rev. K [05/14/2012]
eplacement Packaged Terminal Air-Conditioning / Heat Pump
•
nstallation, Operation, and Maintenance Manual
Installation Instructions — R60C | R60H CONTROLS (continued)
Install the ba es3. Once the weather angles are veri ed. Slide
the unit back out of the wall sleeve. Remove all sets of ba es from
the kit bag supplied with unit. Install only one set of le and right
side ba es on the condenser coil
Choose the proper ing ba es for your application by verifying •
selected ba es come in contact with the outdoor louver.
Make sure the ba es are directed inward toward the center of •
coil (see Figure 19).
Secure ba es tightly into the existing holes of the condenser coil •
using the screws provided.
by completing steps below
:
NOTICE
e correct condenser air ba es must be installed or performances
may be impaired.
Install the foam tape4. Apply ” x ” open-cell foam strips
around supply air duct to ensure that all the conditioned air is
delivered into the room (see Figure 21). Failure to do so results in
recirculation of the conditioned air through the cabinet causing
the unit cabinet to short cycle and coils to freeze.
Foam installationFigure 24
Foam tape installation5. hydronic coil buy controls If
the hydronic heat option has been ordered, then the hydronic
coil will need to be eld installed on the new unit. e coil with
the old unit can be located in the subbase, under the chassis in a
special a achment, or above the chassis in a special a achment.
It is necessary to know where the coil is to be located and the
physical size of the coil so the new coil can be veri ed if ordered
for replacement. e new coil should be installed in the same
manner as the coil it is replacing. Hydronic coils are not factory
installed and need to be ordered.
Remove the 2-position connector assembly from kit bag supplied •
with unit (this will have 2 yellow wires a ached).
Connect this 2-position connector to the 2-position connection •
located on the bo om of the control box panel.
Connecting the accessory Aquastat6. If the accessory
Aquastat has been ordered then it will need to be eld installed.
Remove the black jumper wire located on the bo om panel of the •
control box (this is also terminated with a 2-position connector).
Cut the jumper wire in the middle and splice the Aquastat to •
the jumper.
Place the connector back into original location. Refer to the wir-•
ing diagram on the unit for details.
Secure the chassis7. A er ensuring that all seals are the cor-
rect size and in the proper location, and the correct ba es are
a ached to the condenser coil in the proper orientation, slide the
unit into nal position and tighten any tie down bolts or screws
as necessary.
Hard-wired units8. If the unit is hard wired, follow the in-
structions on page 15 to verify existing wiring and overcurrent
protection. Remove the line cord wires from the PTAC/PTHP
power entrance terminals. Route the power supply wiring through
a strain-relief bushing and connect leads to the power entrance
terminals. Secure the strain-relief clamp. (If wiring is through
conduit, insert the conduit through the control box knockout
and secure in place.) DO NOT turn on power until completing
instructions in "Final Inspection and Startup" on page 32 .
DO NOT PLUG IN the line cord, if used9. . Follow instructions
in "Final Inspection and Startup" on page 32 .
1/2' x 1/2' Foam
P/N 240008223, Rev.K [05/14/2012] 25 Made in USA
Installation Instructions — R65C | R65H
p
|
R65C Figure 25
R65H chassis and installation kit contents
Replacement Packaged Terminal Air-Conditioning / Heat Pum
Installation, Operation, and Maintenance Manual •
Installation kit contents
Installation manual•
(1 set) le & right ba es•
1” x 1” open-cell foam tape•
Screws 4•
Optional hydronic heat
controls (Hydronic
Heat Optiom Only)
(1) 2-position connector •
(2) Pin mate•
Optional Aquastat Connection
(1) 14 AWG black wire•
Installation
Verify the existing wall thickness1. the distance from the
condenser coil to the outdoor louver varies with the sleeve depth.
Each chassis includes standard air ba es to accommodate the
most common condenser coil to outdoor louver requirements.
In addition, we stock an optional condenser-side air ba e kit for
chassis installation in deeper than standard walls. e weather
angles should need no adjustment.
Verify air supply alignment — 2. slide the unit into the wall-
sleeve. e supply duct on the cooling chassis should line up with
the supply vent on the room cabinet.
Install the ba es3. slide the unit back out of the wall sleeve.
Remove the ba es from the kit bag supplied with unit. Install
the le and right side ba es on the condenser coil
steps below
Ba es must come in contact with the outdoor louver. •
Make sure the ba es are directed inward toward the center of •
coil (see Figure 23).
Secure ba es tightly into the existing holes of the condenser coil •
using the screws provided.
:
by completing
NOTICE
e correct condenser air ba es must be installed or performances
may be impaired.
Direction of ba es and foam installationFigure 26
Ba e
Weather
Angle
The Right Fit for Comfort 26 P/N 240008223, Rev. K [05/14/2012]
•
nstallation, Operation, and Maintenance Manual
Installation Instructions — R65C | R65H (continued)
Install the foam tape4. Apply
prevent outside air from entering around the chassis to the room
from the sides and top of the cabinet. Install the strips between the
wall sleeve and the cooling chassis (see Figure 27 ). It is imperative
to have a solid air seal between the wall sleeve and the chassis.
Failure to do so will result in air leakage from outdoor to indoor
causing system problems (example — coils eezing, short cycling,
and constant running of unit). If there is a need for more foam than
supplied in kit, consult the factory.
Foam tape installation against wall sleevesFigure 27
Connecting the optional hydronic coil5. if the hydronic
heat option has been ordered, then the hydronic coil will need to
be eld installed on the new unit. Hydronic coils are not factory
installed and need to be ordered. e coil with the old unit can be
located in the subbase, under the chassis in a special a achment,
or above the chassis in a special a achment. It is necessary to
know where the coil is to be located and the physical size of the
1” x 1” open-cell foam strips to
Install
1/2" x 1/2"
Foam Tape
coil so the new coil can be veri ed if ordered for replacement.
e new coil should be installed in the same manner as the coil
it is replacing.
Remove the 2-position connector assembly from kit bag supplied •
with unit (this will have 2 yellow wires a ached).
Connect this 2-position connector to the 2-position connection •
located on the bo om of the control box panel.
Connecting the Accessory Aquastat6. if the accessory
Aquastat has been ordered then it will need to be eld installed.
Remove the black jumper wire located on the bo om panel of the •
control box (this is also terminated with a 2-position connector).
Cut the jumper wire in the middle and splice the Aquastat to •
the jumper.
Place the connector back into original location. Refer to the wir-•
ing diagram on the unit for details.
Aquastat accessories can be orderd. Kit contains molex con-•
nectors
Secure the chassis7. a er ensuring that all seals are the cor-
rect size and in the proper location and the correct ba es are
a ached to the condenser coil and in the proper orientation,
slide the unit into nal position and tighten any tie down bolts or
screws as necessary.
Hard-wired units8. If the unit is hard wired, follow the in-
structions on page 15 to verify existing wiring and overcurrent
protection. Remove the line cord wires from the PTAC/PTHP
power entrance terminals. Route the power supply wiring through
a strain-relief bushing and connect leads to the power entrance
terminals. Secure the strain-relief clamp. (If wiring is through
conduit, insert the conduit through the control box knockout
and secure in place.) DO NOT turn on power until completing
instructions in "Final Inspection and Startup" on page 32 .
DO NOT PLUG IN the line cord, if used9. . Follow instructions
in "Final Inspection and Startup" on page 32 .
P/N 240008223, Rev.K [05/14/2012] 27 Made in USA
Replacement Packaged Terminal Air-Conditioning / Heat Pum
p
Installation, Operation, and Maintenance Manual •
Field Installation of Sensor Wires
1. Route sensor wires from chassis to control board
Chassis
Blower
Section
Control
Box
The Right Fit for Comfort 28 P/N 240008223, Rev. K [05/14/2012]
Field Installation of Sensor Wires (continued)
•
2. Connect wires to control board
Label
Indoor
TO ENSURE PROPER OPERATION
CONNECT WIRES TO CONTROL
BOARD INDOOR
Outdoor
eplacement Packaged Terminal Air-Conditioning / Heat Pump
nstallation, Operation, and Maintenance Manual
Indoor
Label
Outdoor
TO ENSURE PROPER OPERATION
3. Attach control panel cover and wire cover
CONNECT WIRES TO CONTROL
BOARD OUTDOOR
Wire Cover
P/N 240008223, Rev.K [05/14/2012] 29 Made in USA
Control
Panel Cover
Replacement Packaged Terminal Air-Conditioning / Heat Pum
p
Installation, Operation, and Maintenance Manual •
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 28
TEST
Con g.
Jumper
LED
Indicator
Light
Heat
Pump
Con g.
Jumper
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 internal 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 second s.
e Status Code is listed below.
Trouble
Code
Status
(Blinks)
1
2
3
4
5
Normal Operation
Anti-Short Cycle Timer Active
Outdoor Coil Freeze Protection
Indoor Coil Freeze Protection
Simultaneous “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, reducing 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 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 cooling 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 restoration 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.
The Right Fit for Comfort 30 P/N 240008223, Rev. K [05/14/2012]
eplacement Packaged Terminal Air-Conditioning / Heat Pump
•
nstallation, Operation, and Maintenance Manual
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 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 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 Operation). 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 A nti- 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 initiated, 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 Sw itch [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 motorized 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 temperature of 80 ± 5 ºF (26 ± 3 ºC) or below.
“Remote Wall Thermostat Controls”
˚
Cooling and Heat ing operates identical to unit mount controls.
See remote controls manual for control details. Remote units
do not use a system switch, or FCS.
P/N 240008223, Rev.K [05/14/2012] 31 Made in USA
Before operating the unit
p
Read and understand the contents of this manual.
Replacement Packaged Terminal Air-Conditioning / Heat Pum
Installation, Operation, and Maintenance Manual •
Final Inspection & Start-up
CAUTION
Any obstruction of supply air, including the use of de ector
ba es, may cause condensate to form on the louver or cabinet
(see Figure 29 ).
Install the unit per the instructions outlined in this manual and
all applicable local and national codes.
Ensure the electrical supply matches the electrical requirements
of the unit, and that the unit is properly grounded.
Examine control box. Ensure all wire connections are secure,
and that control board jumpers are in the proper positions. See
“” on page 33 .
Verify that the chassis is properly ed to the wall sleeve and
securely mounted to the surrounding framing.
Make sure the chassis is level:
Pour water into the drain pan.•
Make certain it ows through the drain hoses to the condenser •
side of the unit.
Verify that indoor blower wheels and outdoor fan blades are
secured to their motor sha s, and rotate freely.
Ensure all sheet metal panels are in place and secure.
A ach the front panel to the existing cabinet enclosure.
Proper air ow diagramFigure 29
To ensure optimum performance of your PTAC/PTHP, avoid
restricting the air ow. e position of curtains or drapes over
supply air grille may cause air to recirculate without cooling
the room. e unit will short cycle and may cause premature
compressor failure (see Figure 30 ).
Verify that nothing will interfere with the room discharge air or
the return air of the units. Examples:
Check for curtains or drapes that obstruct the air ow.•
See • Figure 29 and Figure 30 .
Check for plush carpeting that can obstruct the return air.•
Items like these can cause serious damage to the chassis.•
The Right Fit for Comfort 32 P/N 240008223, Rev. K [05/14/2012]
Restricted air ow diagramFigure 30
eplacement Packaged Terminal Air-Conditioning / Heat Pump
•
nstallation, Operation, and Maintenance Manual
Final Inspection & Start-up (continued)
NOTICE
All wiring should be in accordance with both the National
Electric Code (NEC) and the local building codes.
UNITS RATED 208/230V the RetroAire unit is wired for
230v primary voltage from the factory. e transformer must
be rewired by the installer if the jobsite voltage is 208v. Change
the transformer tap from orange to red. See the wiring diagram
for details.
Setting the control board jumpers
e control board has two sets of factory installed jumper pins on the
control board, HP jumper and TEST jumper. ese pins have
HP jumper — to select heat pump or straight cooling
ese pins determine whether the unit operates as straight cooling or
as heat pump (see Figure 31 and Figure 33 ).
Jumper the right pin to the center pin for heat pump operation.•
Jumper the le pin to the center pin for straight cooling operation.•
HP Jumper Figure 31 (selects heat pump or straight cooling)
Straight
Cool Mode
Mode
(jumper center
& top pins)
Heat Pump
Mode
(jumper center
& Btm. pins)
Test mode
(pins jumpered)
TEST JUMPER
TEST jumper Figure 32 (selects normal or test mode)
Normal operation
(pins not jumpered)
TEST
Circuit boardFigure 33
HP
HP
HP
TEST jumper
is jumper is for use in testing only (see Figure 32 and
Figure 33 ).
When the JUMPER pins are jumpered together, all timers are eliminated (example — anti-short cycle, purge, etc.). is is mainly used for
production line testing. But it may be used for eld testing as well.
e units are factory set with the jumper on only one pin (normal
operation position).
Do not leave the unit operating with the TEST jumper in the
TEST position.
— to select normal or test mode
WARNING
HEAT PUMP
JUMPER
P/N 240008223, Rev.K [05/14/2012] 33 Made in USA
Replacement Packaged Terminal Air-Conditioning / Heat Pum
p
Installation, Operation, and Maintenance Manual •
Final Inspection & Start-up (continued)
Start Up
Ensure the unit is secure and level. 1.
Heat pump units only2. Verify that the thermostatic drain
pan valve is operating correctly. e valve should be closed if the
temperature is above 60°F and open if the temperature is below
60°F.
If equipped, test the fresh air damper by se ing the damper door 3.
switch to the "YES" position and verify the damper opens and
allows fresh air to be moved into the space. en, set the damper
door switch to the "NO" position, and verify the ow of air into
the space has stopped. Fresh air will only be available when the
indoor fan is running.
Verify that the 4. HP jumper is set correctly for the unit type
cooling only or heat pump unit (see Figure 31, page 33 ).
Set the 5. TEST jumper to test mode if desired. is will disable
time delays, including anti-short-cycle and purge times (see
Figure 32, page 33 ).
Verify that the unit is wired according to instructions in this 6.
manual, including requirements on page 32 .
Connect Electric power to the unit .7.
Turn on the unit to check for proper operation. Check conden-8.
sate removal by pouring water into the base pan, pu ing the unit
in cooling mode, and with the condenser fan running, seeing
if water is picked up by the slinger ring and thrown onto the
outdoor coil.
NOTICE
e compressor will not start until the anti-short time period
has elapsed. On power-up, there will also be delays for control
board initialization and random-start timing. See “Sequence of
Operation” on page 30.
Typical Representation of a Unit Mount ControlFigure 34
THERMOSTAT KNOB
CAUTION
DO NOT rotate the thermostat knob back and forth from
heating to cooling. is causes the compressor to cycle on and
o rapidly and will cause damage to the compressor. Allow
the compressor to remain o for at least three minutes prior to
restarting the unit.
Remote-mounted thermostat
Use the thermostat to place the PTAC/PTHP in either the 1. COOL,
HEAT, or
If the thermostat is ed with a2.
fan in either ON, OFF, or AUTO. Test operation in all positions.
Check thermostat calibration for both heating and cooling op-3.
eration
OFF
position. Test operation in all positions.
fan switch, set as desired places the
.
Unit-mounted thermostat
Use the system switch to place the PTAC/PTHP in either the 1.
COOL, HEAT, or
in all positions.
Use the fan speed switch places the fan in either 2. LOW or HIGH speed
(see Figure 34 ). Test operation in both positions for heating and
cooling.
Test operation of the Fan Cycle switch (this is a toggle switch 3.
on side of control box), with switch set at ON (continuous fan
operation) or AUTO (cycling with thermostat) for both heating
and cooling. Set the switch in the desired position.
Rotate the thermostat knob to the le to increase setpoint temperature, 4.
or to the right to decrease
ed thermostat knob to the far le will produce the warmest room
temperature, while turning it all the way to the right will produce
the coolest. e se ing can be adjusted for personal comfort.
The Right Fit for Comfort 34 P/N 240008223, Rev. K [05/14/2012]
OFF
position (see Figure 34 ). Test operation
(see Figure 34 ). Turning the unit-mount-
Straight cooling PTAC's
Cooling cycle
Place the thermostat or system switch in the 1. COOL position.
Adjust the thermostat to a cooler temperature until the indoor fan 2.
starts running. e compressor and outdoor fan should then turn on
and cold air will begin to ow from the unit. Let the unit continue
operating to cool the room and remove humidity.
A er the unit starts running and the space gets cooler, adjust the 3.
thermostat to a warmer temperature until the compressor cycles
o .
If a colder room temperature is desired, adjust the thermostat to a 4.
cooler temperature se ing, turning the compressor and both fans
back on.
If a warmer room temperature is desired, adjust the thermostat to 5.
a warmer temperature se ing. e compressor and outdoor fan
will stop and the indoor fan will switch o a er the sixty-second
purge time has elapsed.
Place the thermostat or system switch in the 6. OFF position.
All operation should stop.
eplacement Packaged Terminal Air-Conditioning / Heat Pump
•
nstallation, Operation, and Maintenance Manual
Final Inspection & Start-up (continued)
NOTICE
e room temperature must be above 65°F (18°C) for the
compressor to operate in cooling mode
mounted controllers
When the unit is rst powered up, high humidity conditions
can cause condensation to form on the discharge grill. Keep
doors and windows closed to reduce humidity and condensation will evaporate.
.
CAUTION
on PTAC's with unit-
Heating cycle — electric option
Place the thermostat or system switch in the 1. HEAT position.
Adjust the thermostat for a warmer temperature until the indoor 2.
fan starts running and the electric heater coil starts emi ing
heat.
NOTICE
e outdoor fan does not run during the heating cycle.
A er the unit starts running and the space gets warmer, adjust 3.
the thermostat to a cooler temperature until the electric heater
turns o .
If a warmer room temperature is desired, adjust the thermostat to 4.
a warmer temperature se ing, which will turn the electric heater
back on.
If a cooler room temperature is desired, 5.
to a cooler temperature se ing
e indoor fan will switch o a er the sixty-second purge time
has elapsed.
Place the thermostat or system switch in the 6. OFF position.
All operation should stop.
until the electric heater turns o .
adjust the thermostat
NOTICE
Room temperature must be below 85°F (29.4°C) to energize
the heater on PTAC's with unit-mounted controllers.
Heating cycle — hydronic option
Place the 1.
Adjust the thermostat to a warmer temperature. 2.
e following should then occur:
A er the unit starts running and the area gets warmer, adjust the ther-3.
mostat to a cooler temperature, the hydronic valve will close and indoor
fan will switch o a er the sixty-second purge time has elapsed.
If a warmer room temperature is desired, 4.
a warmer temperature se ing
and turn on the indoor fan.
If a cooler room temperature is desired, a5.
a cooler temperature se ing
and indoor fan will switch o a er the sixty-second purge time
has elapsed.
Place the thermostat or system switch in the 6. OFF position.
All operation should stop.
thermostat or
A signal from the processor board will activate the water or •
steam valve.
e motorized valve should open and allow hot water or steam •
to run through the coil.
e indoor fans will run, blowing air through the hydronic coil •
If the unit is equipped with an Aquastat, the indoor fan and the
motorized damper operation will be delayed until the hydronic
coil reaches 100 ± 5°F (38 ± 3°C).
e signal to the water or steam valve will continue until the room •
temperature rises above the setpoint by 3°F (2°C).
system switch in the HEAT position.
adjust the thermostat to
, which will open the hydronic valve
djust the thermostat to
. e hydronic valve will again close
NOTICE
Room temperature must be below 85°F (29°C) for the hydronic
heater to operate on PTAC's with unit-mounted controllers.
e hydronic valve is a 24Vac normally open valve. Should power
be interrupted, the valve will default to the open position.
Completion of testing for cooling-only PTAC's
Operation testing is now complete. If TEST jumper was set to test
mode then make sure to set it back to normal operation (see
Figure 32, page 33 ).
WARNING
Do not leave the unit operating with the TEST jumper in the
TEST position. Prolonged operation with the unit on test mode
will cause damage to the internal components of the unit.
NOTICE
Make sure the motor valve is rated for the correct voltage.
Most RetroAire units with unit mount controls will power a
hydronic valve that is the same voltage as the unit (ex: a unit
rated 208/230v will power a 208/230v). A switch is provided on
the control box to change from NO to NC. Be sure to check the
wiring diagram (located on the unit) and voltage application for
the speci c unit. Other valve con gurations and voltage options
are available. Consult Technical Service if the unit voltage does
not match your valve application.
P/N 240008223, Rev.K [05/14/2012] 35 Made in USA
Heat Pump PTHP's
NOTICE
e unit is equipped with a reversing valve that is energized for
cooling and de-energized in heating mode.
Cooling cycle — heat pump units
Place the thermostat or system switch in the 1. COOL position.
Adjust the thermostat to a cooler temperature until the indoor 2.
fan
Replacement Packaged Terminal Air-Conditioning / Heat Pum
p
Installation, Operation, and Maintenance Manual •
Final Inspection & Start-up (continued)
starts running. e compressor and outdoor fan should then turn on 3.
and cold air will begin to ow from the unit. Let the unit continue
operating to cool the room and remove humidity.
A er the unit starts running and the space gets cooler, adjust the 4.
thermostat to a warmer temperature until the compressor cycles
o .
If a colder room temperature is desired, adjust the thermostat to a 5.
cooler temperature se ing, turning the compressor and both fans
back on.
If a warmer room temperature se ing is desired, adjust the thermo-6.
stat to a warmer temperature. e cooling mode will cease and the
compressor and outdoor fan will stop. e indoor fan will
o a er the sixty-second purge time has elapsed
Place the thermostat or system switch in the 7. OFF position.
All operation should stop.
.
switch
NOTICE
e room temperature must be above 65°F (29°C) for the
compressor to operate in cooling mode
mounted controllers
Place system switch in the 8. OFF position. All operation should stop.
.
on PTHP's with unit-
Heating operation — heat pump units — outdoor
temperature above 40°F (4°C)
Place 1.
the thermostat or
system switch in the HEAT position.
NOTICE
Room temperature must be below 85°F (29°C)
sor to operate in heating mode
controllers. .
Place the thermostat or system switch in the 6. OFF position.
All operation should stop.
on PTHP's with unit-mounted
for the compres-
NOTICE
Heat pump units are “Limited Range” equipped with backup electric resistance heat. Limited Range heat pumps are
designed to operate when outdoor temperatures are between
75°F(24°C)and 40°F (4°C) and with a maximum indoor temperature of 85°F (29°C) . When the outdoor temperature falls
below approximately 40°F (4°C) the unit will switch from heat
pump to electric resistance heat, or hydronic heat if optionally
added. Electric heat or hydronic heat will then remain as the
heat source until the outdoor temperatures rise above 50°F
(10°C). RetroAire heat pumps (R_ _H) are single-stage heating units. e electric heat and heat pump will NOT operate
simultaneously.
Auxiliary heating operation — heat pump units —
outdoor temperature below 40°F (4C°) — electric
option
Adjust the thermostat to a warmer temperature se ing 2.
indoor fan start running. e compressor and outdoor fan should
then turn on
A er the unit starts running and the space gets warmer, adjust the 3.
thermostat to a cooler temperature until the compressor cycles o .
For a warmer room temperature, 4.
temperature
compressor back on
If a cooler room temperature is desired, 5.
a cooler temperature se ing
compressor and outdoor fan will stop. e indoor fan will
o a er the sixty-second purge time has elapsed
and warm air will begin to ow from the unit.
adjust the thermostat to a warmer
se ing
turning the indoor and outdoor fans, and
.
adjust the thermostat to
. e heating mode will cease and
until the
the
switch
.
Place 1.
the thermostat or
Adjust the thermostat to a warmer temperature until the indoor 2.
fans start running and the electric coil starts emi ing heat.
A er the unit starts running and the space gets warmer, adjust 3.
the thermostat to a cooler temperature until the electric heater
turns o .
If a warmer room temperature is desired, adjust the thermostat to 4.
a warmer temperature se ing, which will turn the electric heater
back on.
If a cooler room temperature is desired, 5.
to a cooler temperature
e indoor fan will switch o a er the sixty-second purge time
has elapsed.
Place the thermostat or system switch in the 6. OFF position.
All operation should stop.
system switch in the HEAT position.
adjust the thermostat
se ing until the electric heater turns o .
The Right Fit for Comfort 36 P/N 240008223, Rev. K [05/14/2012]
eplacement Packaged Terminal Air-Conditioning / Heat Pump
•
nstallation, Operation, and Maintenance Manual
Final Inspection & Start-up (continued)
NOTICE
Room temperature must be below 85°F(29°C) to energize the
heater on PTHP's with unit-mounted controllers
5 kW heat models only in the event the limit switch opens and deenergizes the electric heat, the limit switch will need to be manually reset.
To reset switch:
Turn power o •
Remove the control box cover. •
Locate the limit switch. •
Push in the reset bu on on the face of the switch (see • Figure 35 ).
.
Auxiliary heating operation — heat pump units —
outdoor temperature below 40°F (4°C) — hydronic
option
Place 1.
the thermostat or
Adjust the thermostat to a warmer temperature. 2.
e following should then occur:
A signal from the processor board will activate the water or •
steam valve.
e motorized valve should open and allow hot water or steam •
to run through the coil.
e indoor fans will run, blowing air through the hydronic coil •
If the unit is equipped with an Aquastat, the indoor fan and the
˚
motorized damper operation will be delayed until the hydronic
coil reaches 100 ± 5°F (38 ± 3°C).
e signal to the water or steam valve will continue until the room •
temperature rises above the setpoint by 3°F (2°C).
A er the unit starts running and the space gets warmer, the •
hydronic valve will close and indoor fan will switch o a er the
sixty-second purge time has elapsed.
A er the unit starts running and the space gets warmer, 3.
thermostat to a cooler temperature se ing,
close and indoor fan will switch o a er the sixty-second purge
time has elapsed.
If a warmer room temperature is desired, 4.
a warmer temperature se ing
system switch in the HEAT position.
adjust the
the hydronic valve will
adjust the thermostat to
, which will open the hydronic valve
and turn on the indoor fan.
If a cooler room temperature is desired, adjust the thermostat to 5.
a cooler temperature se ing. e hydronic valve will again close
and indoor fan will switch o a er the sixty-second purge time
has elapsed.
Place the thermostat or system switch in the 6. OFF position.
All operation should stop.
NOTICE
Room temperature must be below 85°F (29°C) for the hydronic
heater to operate on PTHP's with unit-mounted controllers.
e hydronic valve is a 24Vac normally open valve. Should power
be lost to the unit, the valve will default to the open position.
Completion of testing for heat pumps
Operation testing is now complete. If the TEST jumper was set to
test mode then make sure to set it back to normal operation
(see Figure 32, page 33 ).
P/N 240008223, Rev.K [05/14/2012] 37 Made in USA
Replacement Packaged Terminal Air-Conditioning / Heat Pum
p
Installation, Operation, and Maintenance Manual •
Maintenance & Troubleshooting
Monthly inspection and maintenance
DANGER
Electrical shock hazard disconnect power to the
RetroAire replacement PTAC/PTHP before servicing or accessing the control compartment. Failure to do so could result
in severe personal injury or death.
WARNING
It is illegal to discharge refrigerant into the atmosphere. Use
proper reclaiming methods and equipment when servicing a
RetroAire replacement PTAC/PTHP.
For optimum performance and reliability of your RetroAire replacement PTAC/PTHP, ECR International recommends performing the
following inspections and maintenance on a monthly basis. Units that
are installed in harsh or dirty environments will require more frequent
inspections and maintenance.
Disconnect power to unit and remove necessary access panels.
Clean or replace the indoor air lter.
Vacuum return air grille surface.
Inspect & clean the chassis interior for rodent or insect infestation.
Clean & ush condensate drain pan and chassis base pan.
If applicable, ensure the condensate drain is functioning properly.
Inspect refrigeration tubing, especially braze joints, for signs of
refrigerant leaks (oil residue). Repair if necessary.
Inspect indoor and outdoor coils. Ensure dirt or debris have not col-
lected on the ns. Clean if necessary. Be careful not to damage coil
ns when cleaning. Use a n comb to straighten any bent ns.
Examine control box. Ensure all wire connections are secure.
Ensure indoor blower wheels and outdoor fan blades are secured
to their motor sha s.
Ensure dirt or debris have not collected on the indoor blower
wheels and outdoor fan blades. Use a vacuum and so brush to
clean if necessary.
If the unit has a hydronic option installed, inspect piping, espe-
cially braze joints, for signs of water leaks. Repair if necessary.
Clean the exterior of the cabinet as desired with a mild soap or
household cleaner.
5 kW heat models only in the event the limit switch opens and
de-energizes the electric heat, the limit switch will need to be manually reset.
To reset switch:
Remove the control box cover. •
Locate the limit switch. •
Push in the reset bu on on the face of the switch (see • Figure 35 ).
Figure 35 Manual Reset Limit Switch
Reset Button
*Note:
Button will pop
out when limit
switch opens. Push
in to reset.
Clean or replace the return air lter as needed. Allowing dust
to collect on the lter will cause the unit to lose e ciency and
eventually malfunction. Check the lter at least once a month.
Some environments may require more frequent replacement,
depending on particulate in the air stream.
WARNING
NOTICE
If a new air lter is needed for your RetroAire replacement PTAC/
PTHP, consult factory for availability and/or proper sizing.
Seasonal start-up and maintenance
At the beginning of the cooling and heating seasons, a complete mechanical check should be performed and maintenance/inspections
performed as described below.
Disconnect power to unit and remove necessary access panels.
Performing the inspections and maintenance de ned in 1.
"Monthly start-up and maintenance."
Do a visual check of the equipment. Look for obvious changes in 2.
the unit such as damaged coils or evidence of extended wear on
any moving parts.
Check for unusual odors, oil leaks, or stains on or around the 3.
coil and refrigerant lines. e presence of oil here may indicate
a potentially serious problem such as a refrigerant leak (example
— burned motor windings, water, or re igerant).
Make sure the base pan is clean.4.
Inspect all electrical connections.5. Look for frayed wires and poor
connections. Terminal ends that are loose will eventually fail, causing a loss of performance or worse.
Check fan motors and blower assemblies. Some units may require 6.
a drop of light oil to motors and/or bearing assemblies (look for oil
cups). Ensure setscrews and motor mounting hardware are tight.
Brush and/or vacuum the centrifugal fan blades and blower cage 7.
assemblies, as they must be clean to operate e ciently.
Inspect both indoor and outdoor coils. Use a n comb to straighten out 8.
any damaged ns.
Do not use a solvent-based cleaner to clean coils, as some solvents
will produce a noxious odor when the unit is in operation.
ese coils must be clean for proper operation.
WARNING
The Right Fit for Comfort 38 P/N 240008223, Rev. K [05/14/2012]
eplacement Packaged Terminal Air-Conditioning / Heat Pump
•
nstallation, Operation, and Maintenance Manual
Maintenance & Troubleshooting (continued)
Look for oil leaks or stains on or around all braze joints and refrig-9.
erant lines. e presence of oil here indicates a potentially serious
problem (such as a re igerant leak).
Inspect and clean the drain pan and drain line(s). e use of an 10.
anti-fungicide tablet to keep the condensate system free from
bacterial contaminants is recommended.
Check the pitch of the unit. Over time the building and equipment 11.
may se le, causing a shi in the direction of the condensate ows.
Ideally the unit should pitch a minimum of 5°(at least ½”) to the
outside to allow for proper drainage.
Check weep holes along rear ange of the base pan to ensure they 12.
are free of debris.
Check to ensure the seal around the unit is not broken or damaged.13.
NOTICE
Air leaks may make the conditioned area uncomfortably dra y
or produce noises. Visually inspect the foam gasket between
the wall and the unit, especially taking note of the separation
between the air inlet for the condenser and the condenser coil
discharge. ese two areas must be sealed o from each other.
If you experience poor cooling operation or erratic operation,
check for air recirculation at the condenser coil.
sensor from the circuit board. A 2-stage thermostat will provide
Emergency heat.
is will appear to the circuit board as an outdoor coil freeze 4.
condition there-by energizing the electric resistance heater on
the call for heat.
See "Manual Reset Limit Switch" ( 5. Figure 35, page 38 ) for rese ing
the limit switch if needed.
Troubleshooting sensors
DANGER
Electrical shock hazard Disconnect power to the
RetroAire replacement PTAC/PTHP before servicing or accessing the control compartment. Failure to do so could result
in severe personal injury or death.
See for the location of senor connections to the control board.1.
If temperature response of the indoor or outdoor sensor is not 2.
correct, disconnect the sensor from the control board and check
the sensor resistance . Replace the sensor if its resistance is not
close to the values in the table.
Sensor resistance valuesTable 1
Replace the access panels and reconnect the electrical power.14.
Test the unit operation.15.
Heat pump units — temporary emergency
heating mode
DANGER
Electrical shock hazard Disconnect power to the
RetroAire replacement PTAC/PTHP before servicing or accessing the control compartment. Failure to do so could result
in severe personal injury or death.
Should the heat pump fail, the control board can be forced
into electric heat mode.
the heat pump system can be repaired.
Locate the circuit board in the control section of the unit. 1.
Locate the terminals where the outdoor sensor connects to the 2.
circuit board.
Using a small needle nose type pliers, disconnect one side of the 3.
This is a temporary solution until
Resistance, Kohms
77 (25°C) 10.0 K
50 (10°C) 19.9 K
35 (1.6°C) 30.0 K
30 (-1.1°C) 34.4 K
Sensor connections on control boardFigure 36
Indoor sensor connections
Outdoor sensor connections
P/N 240008223, Rev.K [05/14/2012] 39 Made in USA
Replacement Packaged Terminal Air-Conditioning / Heat Pum
p
Installation, Operation, and Maintenance Manual •
Maintenance & Troubleshooting (continued)
Troubleshooting
WARNING
e troubleshooting procedures below should only be conducted by a quali ed technician.
Symptom Suggestion
No heat or cooling Check to see if the unit has power and if the thermostat is satis ed. If the thermostat is not •
satis ed, call your installing contractor or service contractor.
e thermostat calls for cooling, but cool air
is not coming out of the unit.
A light on the circuit board is blinking.
Check for continuity between the thermostat and the unit. Also make sure 24 Vac is present •
across terminals C and R.
Check outdoor coil for dirt debris, remove any foreign material. Locate the high pressure •
switch reset bu on and push bu on.
Some units are equipped with an • LCDI (Leakage Current Detection Interrupt) line cord.
Make sure this line cord is reset by pressing the reset bu on at the line cord plug.
Note: If the evaporator fan is operational and all of the above suggested procedures have •
been followed, and there is still no cooling being supplied by the unit, then contact a trained
heating and cooling professional.
e circuit board uses this light for diagnostic purposes. e blinking codes are as follows:•
1 blink = normal operation•
2 blinks = compressor lockout (• ASCT Anti-Short Cycle Timer)
3 blinks = outdoor freeze condition•
4 blinks = indoor freeze condition•
5 blinks = simultaneous • Y and W call (Straight cooling units only)
The circuit board light is blinking 3 or 4
times, but there is no freeze condition. (see
table 1 p.31)
e thermostat is satis ed, but the fan is still
running.
e thermostat calls for heat, but no heat
comes out of the unit.
e thermostat calls for heat while in heat
pump mode, but heated air is not coming
out of the unit.
Make sure the sensors have not been damaged. Remove sensor wires from the control board •
and make resistance measurements, then compare them to the follow ing sensor resistances.
Indoor and outdoor coil sensor wires are labelled, as is the control board. Make sure the
sensors are correctly wired?
77°F = 10KOhms•
50F = 19.9KOhms•
35F = 30KOhms•
30F = 34.4KOhms•
If the thermostat is set to auto mode, once the thermostat is satis ed, the fan will stay ener-•
gized for an extra 60 seconds to purge the unit of excess cool or warm air in the plenum.
If the thermostat fan switch is set to • ON, the fan will stay energized regardless of whether
the thermostat is satis ed or not. e only way to turn the fan o would be to turn the unit
o or to turn the thermostat fan switch to AUTO.
Units equipped with electric heaters have a temperature limit switch to prevent the electric •
heater from reaching unsafe temperatures. If a er calling for heating the heater is not energized, check for continuity across the limit. If the limit is open, replace it with an equivalent
limit switch. Auto reset / Manual reset Switch (Requires trained professional)
Check to see if the unit has power or if the thermostat has been satis ed. If the unit has •
power and the thermostat is satis ed, turn the thermostat a few degrees above room temperature.
Make sure the • LCDI line cord has not tripped. (See Page 13 for information.)
While in heat pump mode, make sure the thermostat is not energizing the • O terminal. Ret-
roAire units are designed to work in heat pump mode w hen 24vac is present across Y and C.
Also, make sure the heat pump jumper on the control board is jumping the two pins labeled
“HP” (see control board jumper locations, Figure 31, page 33 and discussion).
Make sure there are no freeze conditions. Refer to blinking codes question above for more •
information.
The Right Fit for Comfort 40 P/N 240008223, Rev. K [05/14/2012]
eplacement Packaged Terminal Air-Conditioning / Heat Pump
•
nstallation, Operation, and Maintenance Manual
Performance Data
R15 performance dataTable 2
Model
R15
R_ _C 09 9,000 (2.6) 0.75 9.2 400 (189) 35 (17) 140 (64)
R_ _C 12 11,800 (3.5) 0.70 8.34 400 (189) 35 (17) 140 (64)
R_ _C 15 14,500 (4.2) 0.64 8.0 425 (200) 35 (17) 140 (64)
R_ _C 18 16,300 (4.7) 0.64 8.0 425 (200) 35 (17) 140 (64)
Cooling Sensible
Heat
Btuh (kW) CFM (L/s) CFM (L/s) lbs (Kg)
Ratio
EER Indoor Air
Flow
Fresh Air Inlet
Flow
Shipping
Weight
R50 performance dataTable 3
Model
R50
R_ _C 09 9,000 (2.6) 0.75 9.0 400 (189) 35 (17) 140 (64)
R_ _C 12 12,000 (3.5) 0.70 8.4 400 (189) 35 (17) 140 (64)
R_ _C 15 14,500 (4.2) 0.64 8.0 425 (200) 35 (17) 140 (64)
R_ _C 18 16,300 (4.7) 0.64 8.0 425 (200) 35 (17) 140 (64)
Cooling Sensible
Heat
Btuh (kW) CFM (L/s) CFM (L/s) lbs (Kg)
Ratio
EER Indoor Air
Flow
Fresh Air Inlet
Flow
Shipping
Weight
R55 performance dataTable 4
Model
R55
R_ _C 09 9,000 (2.7) 0.69 9.0 325 (153) 35 (17) 140 (64)
R_ _C 12 11,000 (3.2) 0.63 9.0 325 (153) 35 (17) 140 (64)
Cooling Sensible
Heat
Btuh (kW) CFM (L/s) CFM (L/s) lbs (Kg)
Ratio
EER Indoor Air
Flow
Fresh Air Inlet
Flow
Shipping
Weight
R60 performance dataTable 5
Model
R60
R_ _C 09 9,000 (2.6)
R_ _H 09 9,000 (2.6) 8,100 (2.4) 2.9 400 (189)
R_ _C 12 12,000 (3.5)
R_ _H 12 12,000 (3.5) 11,000 (3.2) 2.7 400 (189)
R_ _C 15 14,500 (4.2)
R_ _H 15 14,500 (4.2) 14,000 (4.1) 2.65 425 (200)
R_ _C 18 16,000 (4.7) 0.64 8.2 N/A N/A 425 (200) 35 (17) 140 (64)
Cooling Sensible
Heat
Btuh (kW) Btuh (kW) CFM (L/s) CFM (L/s) lbs (Kg)
Ratio
0.78 9.0
0.70 8.7
0.64 8.2
EER Heat Pump COP Indoor Air
Flow
N/A N/A 400 (189)
N/A N/A 400 (189)
N/A N/A 425 (200)
Fresh Air Inlet
Flow
35 (17) 140 (64)
35 (17) 140 (64)
35 (17) 140 (64)
Shipping
Weight
R65 performance dataTable 6
Model
R65
R_ _C 09 9,000 (2.6) 0.75 9.0 425 (200) 35 (17) 140 (64)
R_ _C 12 12,000 (3.5) 0.63 8.34 425 (200) 35 (17) 140 (64)
Cooling Sensible
Heat
Btuh (kW) CFM (L/s) CFM (L/s) lbs (Kg)
Ratio
EER Indoor Air
Flow
Fresh Air Inlet
Flow
Shipping
Weight
P/N 240008223, Rev.K [05/14/2012] 41 Made in USA
Replacement Packaged Terminal Air-Conditioning / Heat Pum
p
Electrical Speci cations
R15 - 9.000 BTU Table 7 electrical speci cations
Installation, Operation, and Maintenance Manual •
Power Supply
Volt — 1–60
Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug
115V 104 7.5 47 1.4 0.09 1.6 0.125 N/A N/A N/A N/A 10.5 N/A 12.4 15 5-20P
*115V 104 8 45.6 1.4 0.09 1.6 0.125 N/A N/A N/A N/A 11 N/A 13.0 20 5-20P
*208/
230V
208/
230V
265V 240 3.32 18.8 0.67 0.8 0.71 0.9
Compressor
197 4 22.2 0.6 0.08 0.71 0.09 0 N/A N/A N/A 5.3 N/A 6.3 15 6-15P
197 3.9 20 0.6 0.08 0.71 0.09
Indoor Fan
Motor
Outdoor Fan
Motor
Electric Heat Unit Electrical Ratings
0 N/A N/A N/A
208 2454 11.8 12.4 15.5
3
230 3000 13 13.6 17.1
208 3271 15.7 16.3 20.4
4
230 4000 17.4 18 22.5
208 4089 19.7 20.3 25.3
5
230 5000 21.7 22.3 27.9
0 N/A N/A N/A
3 265 3983 15 15.7 19.6 20 7-20P
4 265 5310 20 20.7 25.9 30 7-30P
5 N/A N/A N/A N/A N/A N/A N/A
N/A 6.2 15 6–15P
5.2
N/A 5.5 15 7-20P
4.7
20 6–20P
25 6-30P
30 6-30P
* Tecumseh Compressors Speci cations
R15 - 12,000 BTU Table 8 electrical speci cations
Power Supply
Volt — 1–60
Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug
115V 104 10.8 53 1.4 0.09 1.6 0.125 0 N/A N/A N/A 13.8 N/A 16.5 25 5-20P
*115V 104 12.7 63 1.4 0.09 1.6 0.125 0 N/A N/A N/A 15.7 N/A 18.9 30 5-20P
208/
230V
265V 240 4.6 20 0.67 0.08 0.71 .09
Compressor
197 5.6 29 0.6 0.08 0.71 0.09
Indoor Fan
Motor
Outdoor Fan
Motor
Electric Heat Unit Electrical Ratings
0 N/A N/A N/A
208 2454 11.8 12.4 15.5
3
230 3000 13 13.6 17.1
208 3271 15.7 16.3 20.4
4
230 4000 17.4 18 22.5
208 4089 19.7 20.3 25.3
5
230 5000 21.7 22.3 27.9
0 N/A N/A N/A
3 265 3983 15 15.7 19.6 20
4 265 5310 20 20.7 25.9 30 7-30P
5 N/A N/A N/A N/A N/A N/A N/A
N/A 8.3 15 6–15P
6.9
N/A 7.1 15
6.0
20 6–20P
25 6-30P
30 6-30P
7-20P
* Tecumseh Compressors Speci cations
The Right Fit for Comfort 42 P/N 240008223, Rev. K [05/14/2012]
•
nstallation, Operation, and Maintenance Manual
Electrical Speci cations
R15 - Cooling Capacity 15,000 BTUTable 9 electrical speci cations
Power Supply
Volt — 1–60
Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug
208/
230V
265V 240 6 28 0.67 0.08 1.3 0.25
Compressor
197 7.4 33 0.6 0.08 1.0 0.25
Indoor Fan
Motor
Outdoor Fan
Motor
Electric Heat Unit Electrical Ratings
0 N/A N/A N/A
208 2454 11.8 12.4 15.5
3
230 3000 13 13.6 17.1
208 3271 15.7 16.3 20.4
4
230 4000 17.4 18 22.5
208 4089 19.7 20.3 25.3
5
230 5000 21.7 22.3 27.9
0 N/A N/A N/A
3 265 3983 15 15.7 19.6 20
4 265 5310 20 20.7 25.9 30 7-30P
5 N/A N/A N/A N/A N/A N/A N/A
N/A 10.9 15 6–15P
9.0
N/A 9.5 15
8.0
20 6–20P
25 6-30P
30 6-30P
7-20P
R15 - Cooling Capacity 18,000 BTUTable 10 electrical speci cations
Power Supply
Volt — 1–60
Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug
208/
230V
265V 240 3.32 18.8 0.67 0.08 1.3 0.25
Compressor
197 8.3 44 0.6 0.08 1.0 0.25
Indoor Fan
Motor
Outdoor Fan
Motor
Electric Heat Unit Electrical Ratings
0 N/A N/A N/A
208 2454 11.8 12.4 15.5
3
230 3000 13 13.6 17.1
208 3271 15.7 16.3 20.4
4
230 4000 17.4 18 22.5
208 4089 19.7 20.3 25.3
5
230 5000 21.7 22.3 27.9
0 N/A N/A N/A
3 265 3983 15 15.7 19.6 20 7-20P
4 265 5310 20 20.7 25.9 30 7-30P
5 N/A N/A N/A N/A N/A N/A N/A
N/A 12 20 6–15P
9.9
N/A 6.1 15 7-20P
5.3
20 6–20P
25 6-30P
30 6-30P
P/N 240008223, Rev.K [05/14/2012] 43 Made in USA
Replacement Packaged Terminal Air-Conditioning / Heat Pum
p
Electrical Speci cations
R50 - 9.000 BTU Table 11 electrical speci cations
Installation, Operation, and Maintenance Manual •
Power Supply
Volt — 1–60
Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug
115V 104 7.5 47 1.4 0.09 1.6 0.125 N/A N/A N/A N/A 10.5 N/A 12.4 15 5-15P
*115V 104 8 45.6 1.4 0.09 1.6 0.125 N/A N/A N/A N/A 11.0 N/A 13.0 20 5-15P
*208/
230V
208/
230V
265V 240 3.32 18.8 0.67 0.08 0.71 0.09
Compressor
197 4 22.2 0.6 0.08 0.71 0.09 0 N/A N/A N/A 5.3 N/A 6.3 15 6-15P
197 3.9 20 0.6 0.08 0.71 0.09
Indoor Fan
Motor
Outdoor Fan
Motor
Electric Heat Unit Electrical Ratings
0 N/A N/A N/A
208 2454 11.8 12.4 15.5
3
230 3000 13 13.6 17.1
0 N/A N/A N/A
3 277 3500 12.6 13.3 16.6 20 7-20P
N/A 6.2 15 6–15P
5.2
N/A 5.5 15 7-20P
4.7
20 6–20P
* Techumseh Compressors Speci cations
R50 - 12,000 BTU Table 12 electrical speci cations
Power Supply
Volt — 1–60
Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug
115V 104 10.8 53 1.4 0.09 1.6 0.125 0 N/A N/A N/A 13.8 N/A 16.5 25 5-20P
**115V 104 12.7 63 1.4 0.09 1.6 0.125 0 N/A N/A N/A 15.7 N/A 18.9 30 5-20P
208/
230V
265V 240 4.6 20 0.67 0.08 0.71 .09
Compressor
197 5.6 29 0.6 0.08 0.71 0.09
Indoor Fan
Motor
Outdoor Fan
Motor
Electric Heat Unit Electrical Ratings
0 N/A N/A N/A
208 2454 11.8 12.4 15.5
3
230 3000 13 13.6 17.1
0 N/A N/A N/A
3 277 3500 12.6 13.3 16.6 20
N/A 8.3 15 6–15P
6.9
N/A 7.1 15
6.0
20 6–20P
7-20P
*Techumseh Compressors Speci cations
R50 - Cooling Capacity 15,000 BTUTable 13 electrical speci cations
Power Supply
Volt — 1–60
Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug
208/
230V
265V 240 6 28 0.67 0.08 0.71 0.09
Compressor
197 7.4 33 0.6 0.08 0.71 0.09
R50 - Cooling Capacity 18,000 BTUTable 14 electrical speci cations
Power Supply
Volt — 1–60
Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug
208/
230V
265V 240 N/A N/A 0.67 0.08 0.71 0.09
Compressor
197 8.3 44 0.6 0.08 0.71 0.09
The Right Fit for Comfort 44 P/N 240008223, Rev. K [05/14/2012]
Indoor Fan
Motor
Indoor Fan
Motor
Outdoor Fan
Motor
Outdoor Fan
Motor
Electric Heat Unit Electrical Ratings
0 N/A N/A N/A
208 2454 11.8 12.4 15.5
3
230 3000 13 13.6 17.1
0 N/A N/A N/A
3 277 3500 12.6 13.3 16.6 20
Electric Heat Unit Electrical Ratings
0 N/A N/A N/A
208 2454 11.8 12.4 15.5
3
230 3000 13 13.6 17.1
0 N/A N/A N/A
3 277 3500 12.6 13.3 16.6 20
9.6
1.4
N/A 10.6 15 6–15P
8.7
N/A 8.9 15
7.4
N/A 11.7 15 6–15P
N/A 1.4 15 7-20P
20 6–20P
7-20P
20 6–20P
Electrical Speci cations
•
R55 - 9.000 BTU Table 15 electrical speci cations
eplacement Packaged Terminal Air-Conditioning / Heat Pump
nstallation, Operation, and Maintenance Manual
Power Supply
Volt — 1–60
Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug
208/
230V
Compressor
197 3.9 20 0.6 0.08 1.1 0.15
Indoor Fan
Motor
Outdoor Fan
Motor
Electric Heat Unit Electrical Ratings
0 N/A N/A N/A
208 2454 11.8 12.4 15.5
3
230 3000 13 13.6 17.1
N/A 6.6 15 6–15P
5.6
20 6–20P
R55 - 12,000 BTU Table 16 electrical speci cations
Power Supply
Volt — 1–60
Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug
208/
230V
Compressor
197 5.2 27 0.6 0.08 1.1 0.15
Indoor Fan
Motor
Outdoor Fan
Motor
Electric Heat Unit Electrical Ratings
0 N/A N/A N/A
208 2454 11.8 12.4 15.5
3
230 3000 13 13.6 17.1
N/A 8.2 15 6–15P
6.9
20 6–20P
R65 - 9.000 BTU Table 17 electrical speci cations
Power Supply
Volt — 1–60
Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug
115V 104 7.5 47 1.4 0.09 2.5 0.17 N/A N/A N/A N/A 11.4 N/A 13.3 20
*115V 104 8 45.6 1.4 0.09 2.5 0.17 N/A N/A N/A N/A 11.9 N/A 13.9 20
*208/
230V
208/
230V
Compressor
197 4 22.2 0.6 0.08 1.1 0.15 0 N/A N/A N/A 5.7 6.7 6.7 15
197 3.9 20 0.6 0.08 1.1 0.15
Indoor Fan
Motor
Outdoor Fan
Motor
Electric Heat Unit Electrical Ratings
0 N/A N/A N/A
208 2454 11.8 12.4 15.5
3
230 3000 13 13.6 17.1
208 3271 15.7 16.3 20.4
4
230 4000 17.4 18 22.5
N/A 6.6 15
5.6
20
25
HARD
WIRE
*Techumseh Compressors Speci cations
R65 - 12,000 BTU Table 18 electrical speci cations
Power Supply
Volt — 1–60
Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug
115V 104 9.9 53 1.4 0.09 2.5 0.17 0 N/A N/A N/A 13.8 N/A 16.3 25
*115V 104 12.7 63 1.4 0.09 2.5 0.17 0 N/A N/A N/A 16.6 N/A 19.8 30
208/
230V
Compressor
197 5.2 27 0.6 0.08 1.1 0.15
Indoor Fan
Motor
*Techumseh Compressors Speci cations
P/N 240008223, Rev.K [05/14/2012] 45 Made in USA
Outdoor Fan
Motor
Electric Heat Unit Electrical Ratings
0 N/A N/A N/A
208 2454 11.8 12.4 15.5
3
230 3000 13 13.6 17.1
208 3271 15.7 16.3 20.4
4
230 4000 17.4 18 22.5
N/A 8.2 15
6.9
HARD
WIRE
20
25
Replacement Packaged Terminal Air-Conditioning / Heat Pum
p
R60 - 9.000 BTU Table 19 electrical speci cations
Installation, Operation, and Maintenance Manual •
Power Supply
Volt — 1–60
Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug
115V 104 7.5 47 1.4 0.09 1.6 0.125 N/A N/A N/A N/A 10.5 N/A 12.4 15
*115V 104 8 45.6 1.4 0.09 1.6 0.125 N/A N/A N/A N/A 11.0 N/A 13.0 20
*208/
230V
208/
230V
265V 240 3.32 18.8 0.67 0.08 0.71 0.09
Compressor
197 4 22.2 0.6 0.08 0.71 0.09 0 N/A N/A N/A 5.3 N/A 6.3 15
197 3.9 20 0.6 0.08 0.71 0.09
Indoor Fan
Motor
Outdoor Fan
Motor
Electric Heat Unit Electrical Ratings
0 N/A N/A N/A
208 2454 11.8 12.4 15.5
3
230 3000 13 13.6 17.1
208 3271 15.7 16.3 20.4
4
230 4000 17.4 18 22.5
208 4089 19.7 20.3 25.3
5
230 5000 21.7 22.3 27.9
0 N/A N/A N/A
3 265 3983 15 15.7 19.6 20
4 265 5310 20 20.7 25.9 30
5 N/A N/A N/A N/A N/A N/A
N/A 6.2 15
5.2
N/A 5.5 15
4.7
20
25
30
* Tecumseh Compressors Speci cations
R60 - 12,000 BTU Table 20 electrical speci cations
HARD
WIRE
Power Supply
Volt — 1–60
Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug
115V 104 10.8 53 1.4 0.09 1.6 0.125 0 N/A N/A N/A 13.8 N/A 16.5 25
*115V 104 12.7 63 1.4 0.09 1.6 0.125 0 N/A N/A N/A 15.7 N/A 18.9 30
208/
230V
265V 240 4.6 20 0.67 0.08 0.71 .09
Compressor
197 5.6 29 0.6 0.08 0.71 0.09
Indoor Fan
Motor
Outdoor Fan
Motor
Electric Heat Unit Electrical Ratings
0 N/A N/A N/A
208 2454 11.8 12.4 15.5
3
230 3000 13 13.6 17.1
208 3271 15.7 16.3 20.4
4
230 4000 17.4 18 22.5
208 4089 19.7 20.3 25.3
5
230 5000 21.7 22.3 27.9
0 N/A N/A N/A
3 265 3983 15 15.7 19.6 20
4 265 5310 20 20.7 25.9 30
5 N/A N/A N/A N/A N/A N/A
N/A 8.3 15
6.9
N/A 7.1 15
6.0
20
25
30
* Tecumseh Compressors Speci cations
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 without 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.
Tested/Rated
in Accordance with
ARI 310/380 and
UL Standard 484
HARD
WIRE
The Right Fit for Comfort 46 P/N 240008223, Rev. K [05/14/2012]
eplacement Packaged Terminal Air-Conditioning / Heat Pump
•
nstallation, Operation, and Maintenance Manual
R60 - Cooling Capacity 15,000 BTUTable 21 electrical speci cations
Power Supply
Volt — 1–60
Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug
208/
230V
265V 240 6 28 0.67 0.08 1.3 0.25
Compressor
197 7.4 33 0.6 0.08 1 0.25
Indoor Fan
Motor
Outdoor Fan
Motor
Electric Heat Unit Electrical Ratings
0 N/A N/A N/A
208 2454 11.8 12.4 15.5
3
230 3000 13 13.6 17.1
208 3271 15.7 16.3 20.4
4
230 4000 17.4 18 22.5
208 4089 19.7 20.3 25.3
5
230 5000 21.7 22.3 27.9
0 N/A N/A N/A
3 265 3983 15 15.7 19.6 20
4 265 5310 20 20.7 25.9 30
5 N/A N/A N/A N/A N/A N/A
N/A 10.9 15
9.0
N/A 9.5 15
8.0
20
25
30
HARD
R60 - Cooling Capacity 18,000 BTUTable 22 electrical speci cations
WIRE
Power Supply
Volt — 1–60
Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug
208/
230V
265V 240 N/A N/A 0.67 0.08 1.3 0.25
Compressor
197 8.3 44 0.6 0.08 1.0 0.25
Indoor Fan
Motor
Outdoor Fan
Motor
Electric Heat Unit Electrical Ratings
0 N/A N/A N/A
208 2454 11.8 12.4 15.5
3
230 3000 13 13.6 17.1
208 3271 15.7 16.3 20.4
4
230 4000 17.4 18 22.5
208 4089 19.7 20.3 25.3
5
230 5000 21.7 22.3 27.9
0 N/A N/A N/A
3 265 3983 15 15.7 19.6 20
4 265 5310 20 20.7 25.9 30
5 N/A N/A N/A N/A N/A N/A
N/A 12 20
9.9
N/A 2.0 15
N/A
20
25
30
HARD
WIRE
P/N 240008223, Rev.K [05/14/2012] 47 Made in USA
Warrant
y
The Right Fit for Comfort 48 P/N 240008223, Rev. K [005/14/2012]
ECR International Inc
2201 Dwyer Avenue
Utica, NY 13501
e-mail: info@RetroAire.com
An ISO 9001-2008 Certified Company
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