Friedrich RC-RH 20, RC-RH 45, RC 21, RC 12, RC 11 User Manual
...
DUALMOTORPACKAGEDTERMINAL
RC 11, 12 & 21
RC/RH 10, 20, 35, 45, 80, 90
AIRCONDITIONERS
RC/RH10
RC11
RC12
INSTALLATION,OPERATIONANDMAINTENANCEMANUAL
RC/RH20
RC21
RC/RH35
RC/RH80
Enviromaster International LLC
5780 Success Dr.
Rome, NY 13440
www.retroaire.com
An ISO 9001-2000 Certified Company
P/N# 240004146, Rev. 1.7 [02/07]
DUAL MOTOR PACKAGED TERMINAL AIR CONDITIONERS
INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
P/N# 240004146, Rev. 1.7 [02/07]
Shipping Damage MUST be Reported to the Carrier IMMEDIATELY!!!
Examine the exterior. Remove cover and examine compressor and piping for signs of damage.
This manual is intended as an aid to qualified service
personnel for proper installation, operation, and mainte-
nance of the RetroAire
Conditioner (PTAC). Read these instructions thoroughly
and carefully before attempting installation or operation.
Failure to follow these instructions may result in improper
installation, operation, service or maintenance, possibly
resulting in fire, electrical shock, property damage, personal
injury, or death.
(1) Retain this manual and warranty for future reference.
(2) 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.
Dual Motor Packaged Terminal Air
TO THE INSTALLER
SAFETY INSTRUCTIONS
Read all instructions before using the RetroAire
PTAC. Install or locate this unit only in accordance
with these instructions. Use this unit only for its
intended use as described in this manual.
Check the rating plate on the RetroAire PTAC before
installation to make certain the voltage shown is the
same as the electric supply to the unit.
The RetroAire PTAC must be connected only to a
properly grounded electrical supply. Do not fail to
properly ground this unit.
Turn off the electrical supply before servicing the
RetroAire PTAC.
Do not use the RetroAire PTAC if it has damaged
wiring, is not working properly, or has been damaged or dropped.
To obtain technical service or warranty assistance during or after the installation of this unit, contact your local
representative. Visit our website 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________________________
[Save These Instructions]
Recognize this symbol as an indication
!
of important safety information
!
The Right Fit For Comfort
2
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TABLE OF CONTENTS
MODIFICATION AND TAMPERING
Warnings and Precautions ..................................... 2-3
The Dual Motor PTAC Family ................................... 4
Controls and Components ........................................ 4
Preparation for Installation ....................................... 5
Electrical Wiring ....................................................... 5
Installation Instruction for:
RC/RH10 Replacement PTAC ............................. 6
RC11 Replacement PTAC .................................... 7
RC12 Replacement PTAC ................................... 8
RC/RH20 Replacement PTAC ........................ 9-10
RC21 Replacement PTAC ............................. 11-12
RC/RH35 Replacement PTAC ............................13
RC/RH45 Replacement PTAC .......................14-15
RC/RH80 Replacement PTAC .......................16-17
RC/RH90 Replacement PTAC .......................18-19
Final Inspection and Start-Up ..............................20
Sequence of Operation .......................................20-23
Cleaning and Maintenance ..................................... 24
Troubleshooting ....................................................... 24
Specifications ...........................................................25
Warranty ..................................................................26
DANGER
!
Tampering with the RetroAire Dual Motor PTAC is
dangerous and may result in serious injury or death.
Tampering voids all warranties. Do not attempt to
modify or change this unit in any way.
IMPORTANT SAFETY FEATURE
Power Cord With Integral Safety Protection
All PTACs rated 250
to the power supply are equipped with a power cord
with integral safety protection as standard. Providing
personal shock protection as w ell as arcing and
fire prevention, the device is designed to sense
any damage in the line cord and disconnect power
before a fire can occur. Tested in accordance with
Underwriters Laboratories, the cord set also offers a
unique “passive” operation, meaning the unit does not
require resetting if main power is interrupted.
V or less that are cord connected
!
INSTALLER RESPONSIBILITIES
This manual has been prepared to acquaint you with the
installation, operation and maintenance of RetroAire Dual
Motor PTACs and to provide important safety information
in these areas.
We urge you to read all of these instructions thoroughly
before attempting the installation or operation of your unit.
This manual should be kept for future reference.
The manufacturer of this unit will not be liable for any
damages caused by failure to comply with the installation
and operating instructions outlined in this manual.
A r ati ng plate iden tif ying your Ret roA ire Dual Motor
PTAC can be found on the unit. When referring to your
unit, always have the information listed on the rating plate
readily available.
WARNING
!
!
Completely read all instructions prior to assembling,
installing, operating, or repairing this product. Inspect
all parts for damage prior to installation and start-up.
WARNING - A DAMAGED POWER SUPPLY CORD
MUST BE REPLACED WITH A NEW CORD FROM
THE MANUFACTURER, AND NOT REPAIRED.
Each power cord should be checked before every
use. Follow the instructions in the order listed on the
device.
WARNING - DO NOT USE THE PRODUCT IF THE
UNIT FAILS THE TEST.
DANGER
!
Do not use the RetroAire Dual Motor PTAC with
any electrical supply voltage other than the one
listed on the rating plate.
PTAC Chasses are heavy. To avoid injury, use
assistance when lifting.
CAUTION
!
!
!
The Right Fit For Comfort
Note: Unit uses R22 refrigerant.
3
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THE DUAL MOTOR PTAC FAMILY
The RetroAire Dual Motor PTAC is available as a coolingonly model or, for those who wish to up-grade to a heat
pump, the RH10, 20, 35, 45, 80, and 90 heat pump chassis
will fit the existing wall sleeve. The heat pump version will
reduce energy costs during periods of outdoor temperature
ranging down to as low as 40° F.
The Dual Motor PTAC uses a high-efficiency rotary com
pressor protected under a 5-year warranty and an enhanced
high-efficiency heat exchanger to make the replacement of
worn out and inefficient units a very attractive option.
The RetroAire Dual Motor PTAC is available in nominal
sizes of 9,000 Btuh, 12,000 Btuh, 15,000 Btuh, and 18,000
Btuh.* With energy efficiency ratings as high as 10, the
replacement of worn out and inefficient units is a very at
tractive option.
* The RC12 PTAC, however, is only available in nominal
sizes of 12,000 Btuh and 15,000 Btuh.
All Retroaire products are backed by Enviromaster
-
International LLC and are rated in accordance with ARI
Standards 310 and 380 and UL Standard 484.
PRE-INSTALLATION
-
The RetroAire Dual Motor PTAC offers two fan speeds
– three in the RC12 – and has an optional motorized fresh
air feature with a positive pressure seal, override switch, and
positive condensate re-evaporation to improve efficiency.
Whisper quiet operation improves the room ambience and
the 20 gauge galvanized steel construction of the chassis
ensures long service life.
The RetroAire Dual Motor Packaged Terminal Air Conditioner family consists of:
RC/RH10: A straight cool/heat pump replacement for
the American Air Filter 16 Series, American Standard
45, Carteret 45, Remington Type 45, McQuay 45,
Singer 45, and Nelson Aire 16.
RC11: A straight cool only replacement for the
Westinghouse RB Series.
RC12: A straight cool only replacement for the Len-
nox PTEIA Series.
RC/RH20: A straight cool/heat pump replacement
for the Climate Master (Friedrich) 702 & 703, Cool
Heat RM Series, TPI Ra-Matic, Weather Twin, and
ZoneAire S, SC & RM.
RC21: A straight cool only replacement for the Cli-
mate Master 701.
RC/RH35: A straight cool/heat pump replacement for
the Singer/Remington/McQuay EA, ES & RS.
RC/RH45: A straight cool/heat pump replacement
for the American Standard Type 40.
Test run the Dual Motor PTAC prior to installation. Connect
the line cord to a proper power supply (such as the one the
old unit is plugged into) and check all controls for proper
operation. Disconnect the chassis before installing.
Review baffle and foam tape installation to ensure proper
air seal and unit operation.
CONTROLS AND COMPONENTS
Standard Unit Features
1. Unit mounted operating controls
• Thermostat
• Fan speed control
• Heat/cool switch
• Fan cycle switch
2. Low ambient protection
3. Foam strip seal for supply air duct
4. Weather strip insulation
5. Baffle kit bag
6. Condenser baffles to accommod ate extended wall
sleeve applications (consult factory)
7. Sea coast coated drainpan
8. Normally/open normally/closed motor valve-switch,
(hydronic heat only)
Optional Controls and Accessories
1. Remote thermostat
RC/RH80: A straight cool/heat pump replacement for
Fedders CMEO “Unizone,” and Mueller/Worthington
“Climatrol.”
RC/RH90: A straight cool/heat pump replacement for
Cool Heat AD & 700 and Friedrich Climate Master
AD & 700.
The Right Fit For Comfort
2. Motorized fresh air damper
3. Electric/hydronic heat
4. Disconnect switch
5. Sea coast coated coils
6. Wall sleeves, louvers, and cabinets (consult factory)
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WARNING
!
!
WARNING
!
!
Moving parts can cause personal injury. Exercise
all due caution when test running the chassis.
PREPARATION FOR INSTALLATION
IMPORTANT: RetroAire Dual Motor PTACs are to be used
with metal wallsleeves. The sleeves must employ front
panels secured by screws that prevent contact with all parts
with minor dimensions of openings not exceeding 1/2”. The
final assembly must employ an indoor air discharge grill
having dimensions not less than 26” x 4”, separating the top
surface of the chassis from the top surface of the discharge
gril l by a minimum of 1”. 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”.
All cord connected 265 Volt units must be plugged into
receptacles within the unit subbase or chassis.
1. Remove the front of the existing room enclosure. This
will expose the old chassis.
2. Disconnect the power supply. If a line cord and plug
were used, remove it from the receptacle. If the chassis
is hard wired, locate the circuit breaker, place it in the
“OFF” position, and tag it, announcing work is being
done. DO NOT TURN ON.
3. Loosen any tie down bolts or screws and remove the
old chassis.
IMPORTANT:
and federal regulations.
4. Inspect the wall sleeve/cabinet for rust, holes, and dam
age. Clean the wall sleeve of any dirt, repair any damage,
and ensure proper drainage of condensate or rainwater
to exterior of building.
Dispose of old chassis per present state
The correct condenser air baffles must be properly
installed or performance will be impaired and/or the
warranty will be voided!!
See individual unit installation instructions for more
information.
ELECTRICAL WIRING
All wiring should be in accordance with the National Electric
Code (NEC) and the local building codes.
WARNING
!
To avoid possible injury or death due to electrical
shock, open the power supply disconnect switch
and secure it in an open position during installation.
On a plug and receptacle connection, keep the unit
unplugged until installation is complete.
1. Inspect the existing wiring for any deficiencies such as
cut or frayed wires. Replace such wiring if found.
2. Check the unit rating plate for circuit ampacity and
breaker or fuse size. Use only HACR type breakers
Select the proper wire for the ampacity rating.
3. If plug and receptacle are used, check the compatibility.
The chassis can be hard wired or direct connected as
well.
4. Each unit must have a separate branch ciruit protected
by a fuse or breaker. Refer to the unit rating plate for the
proper wire and breaker or fuse size. Use of extension
cords is prohibited.
!
.
5. Remove or repair old weather seals and note location
for installation of any new seals.
6. Check the wall sleeve/cabinet to assure all drain holes
are open and that
the back is pitched to the outside by 1/2” maximum.
7. Check the present voltage to verify the new chassis is a
matching voltage and that the line cord and receptacle
match.
8. Before installing the new chassis, inspect the outdoor
louver for a minimum free area of 70% and remove
any obstructions. Any variation will restrict air flow over
the condenser coil and cause serious damage to the
chassis. It will also void the warranty.
The Right Fit For Comfort
(A) the unit is level left to right and (B)
DANGER
!
The RetroAire Dual Motor PTAC must:
Be connected to a properly grounded electrical
supply with the proper voltage as stated on the
rating plate.
Use the proper maximum over current protection
device stated on the rating plate.
The use of extension cords is prohibited.
Failure to follow these instructions can result in a fire,
explosion or electrical shock causing property damage,
personal injury or death.
5
!
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INSTALLATION INSTRUCTIONS
Front View
Cooling Chassis
Wall Sleeve
1x1 Foam Tape
RC/RH10 REPLACEMENT PTAC
Install
1/2” x 1/2”
Foam Tape
EVAP BLOCK OFF
RC/RH10 BAFFLE INSTALLATION KIT
• 1 Installation Manual
• 1 Top Baffl e
• 2 Sets of Lt.&Rt. Baffl es
• Screws
HYDRONIC
ONLY
• 1/2” x 1/2” Open Cell Foam Tape
• 1” x 1” Open Cell Foam Tape
• 2” x 1 1/2” Open Cell Foam Tape
• 1ea. 2-Position
• 14AWG Yellow Wire
Connector & Pin Mate
1. Take unit out of packaging.
2. Slide unit into wall sleeve. If supply duct on cooling chassis does
not line up with supply vent on room cabinet it is possible that
factory installed angle brackets on the top and sides will have
to be reversed. This will allow approximately 1” in or out of the
wall sleeve (see figures A & B) below.
Figure A1
Figure B1
5. Apply one piece of 1/2” x 1/2” open cell polyfoam to top fl ange
of evaporator block off (
See illustration at left).
6. Apply 2 ” x 1 1/2” open cell foa m strips around supply air
duct to ensure that all the conditioned ai r is delivered into
the room. Failure to do so results in rec ircul ation o f the
conditioned air around the wall sleeve and through the unit
causing the unit to short cycle and coils to freez, thus raising operating costs through improper heating and cooling
(Figure C1).
7. 1” x 1” Open cell foam strips are provided to prevent outside air
from entering around the chassis to the room from the sides
and top of the cabinet. Install between wall sleeve and cooling
chassis. It is imperative to have a solid air seal between wall
sleeve and chassis. Failure to do so will result in air leakage
from o utdoor to
in do o r caus in g
Figure D1
system problems
i.e. coils freezing,
short cycling, and
constant running
of unit. If installer is in need of
more foam than
su pp li ed in kit ,
co ns u lt fac to r y
(Figure D1).
Two sets of baffl es are provided in your kit to accommodate
mounting brackets in either position A or B.
3. Slide unit out of wallsleeve.
4. Baffl e Installation - Remove baffl es from kit bag supplied
with unit. Install left and right side baffl es on the condenser
coil in existing holes:
• Choose the proper fi tting baffl es for your application.
• Baffl es must come in contact with the outdoor louver.
• Mak e sure baffle s are
directe d inward towa rd
the center of coil.
Figure C1
Baffl es Directed Inward
• Secure baffl es tightly to
the condenser coil using
the screws provided.
CONDENSER SIDE
(Figures A1,B1 & C1).
IMPO RTANT: The corr ect
condenser air baffl es must
be installed or performances
may be impaired and/or the
warranty will be voided.
The Right Fit For Comfort
2” X 1 1/2” Supply Air
Duct Foam Tape
Toward Coil
8. Once confi dent that all seals are the correct size and in the
proper location, and the correct baffl es are attached to the condenser coil in the proper orientation, slide unit into fi nal position
and tighten any tie down bolts or screws as necessary.
Hydronic Only: Remove the 2-position connector assembly
from kit bag supplied with unit (this will have 2 yellow wires
attached). Connect this 2-position connector to the 2-position
connection located on the bottom of the control box panel.
To
Connect Aquastat:
A.
Remove the black jumper wire located on the bottom
panel of the control box (this is also terminated with a
2-position connector).
B. Cut the jumper wire in the middle and splice the aquastat
to the jumper.
C. Place the connecter back into original location. Refer
to wire diagram on the unit for details.
9. Connect line cord.
10. See Final Inspection and Startup on page 20.
RC/RH 10 PERFORMANCE DATA*
Unit Size Cooling Btuh EERs Heat Pump Btuh COP Fresh Air CFM
9 9,500 10.0 8,500 2.8 40/35
12 11,900 10.0 11,400 2.9 40/35
15 14,700 9.2 13,800 2.8 40/35
18 16,900 9.1 N/A N/A 40/35
*Refer to the charts on page 23 for electrical and
optional electric heat specifi cations.
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INSTALLATION INSTRUCTIONS
Front View
Cooling Chassis
Wall Sleeve
1x1 Foam Tape
RC11 REPLACEMENT PTAC
Removable
Weather Seals
1/2
34
”
”
1/4
11
”
7/8
18
”
Air Filter
1/8
14
”
Install
1/2” x 1/2”
Foam Tape
3/4
39
1/4
30
”
RC11 BAFFLE INSTALLATION KIT
• 1 Installation Manual
• 1 Top Baffl e
• 2 Sets of Lt.&Rt. Baffl es
• Screws
Two sets of baffl es are provided in your kit to accommodate
varying wall sleeve depth.
HYDRONIC
• 1/2” x 1/2” Open Cell Foam Tape
• 1” x 1” Open Cell Foam Tape
• 2” x 1 1/2” Open Cell Foam Tape
• 1 ea. 2-Position
ONLY
• 14AWG Yellow Wire
Connector & Pin Mate
1. Take unit out of packaging.
2. Slide unit into wall sleeve. The supply duct on the cooling chassis should line up with the supply vent on the
room cabinet. The weather angles should require no
adjustment.
6. Apply 2” x 1 1/2” open cell foam strips around supply air
duct to ensure that all the conditioned air is delivered
into the room. Failure to do so results in recirculation of
the conditioned air around the wall sleeve and through
the unit causing the unit to short cycle, thus raising
operating costs through improper heating and cooling
(Figure A2).
Figure B2
7. 1” x 1” Open
cell foam strips
are provided to
prevent outside
air from entering around the
chassis to the
room from the
sides and top
of the cabinet. Install between wall sleeve and cooling
chassis. It is imperative to have a solid air seal between
wall sleeve and chassis. Failure to do so will result in
air leakage from outdoor to indoor causing system
problems i.e. Coils freezing, short cycling, and constant
running of unit. If installer is in need of more foam than
supplied in kit, consult factory (
Figure B2).
8. Once confi dent that all seals are the correct size and in
the proper location, and the correct baffl es are attached
to the condenser coil in the proper orientation, slide
unit into fi nal position and tighten any tie down bolts or
screws as necessary.
3. Slide unit out of wallsleeve.
IMPORTANT: The correct condenser air baffl es must be
installed or performances may be impaired and/or the
war
ranty will be voided.
4. Baffl e Installation - Remove baffl es from kit bag sup-
plied with unit. Install left and right side baffl es on the
condenser coil in existing holes:
• Choose the proper fi tting baffl es for your applica-
tion.
• Baff les mus t com e
in con tac t wi th the
Figure A2
Baffl es-Directed Inward
outdoor louver.
• Ma k e su r e baf f les
are dir ected inw ar d
toward the center of
coil.
• Secure baffl es tightly
to the condenser coil
using the screws provided.
5. Apply one piece of 1/2” x 1/2” open cell polyfoam to top
fl ange of evaporator block off (
2” X 1 1/2” Supply Air
Duct Foam Tape
See illustration: top of
this page).
The Right Fit For Comfort
Toward Coil
Hydronic Only: Remove the 2-position connector assembly from kit bag supplied with unit (this will have 2
yellow wires attached). Connect this 2-position connector
to the 2-position connection located on the bottom of the
control box panel.
Connect Aquastat:
To
A. Remove the black jumper wire located on the bot-
tom panel of the control box (this is also terminated
with a 2-position connector).
B. Cut the jumper wire in the middle and splice the
aquastat to the jumper.
C. Place the connecter back into original location.
Refer to wire diagram on the unit for details.
9. Connect line cord.
10. See Final Inspection and Startup on page 20.
RC11 PERFORMANCE DATA*
UNIT SIZE COOLING BTUH EER FRESH AIR CFM
9 9500 10 40/35
12 11,900 10 40/35
15 14,700 9.2 40/35
18 16,900 9.1 40/35
*Refer to the charts on page 23 for electrical and
optional electric heat specifi cations.
7
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INSTALLATION INSTRUCTIONS
RC12 REPLACEMENT PTAC
IMPORTANT: If adjoining room conditioning is required, the
RC12 is able to discharge to the right and left by utilizing
the four-inch knockouts
evaporator compartment using 4” flex duct.
3. Once confident that all seals are the correct size and in
the proper location and the correct baffles are attached
to the condenser coil and in the proper orientation, slide
unit into final position and tighten any tie down bolts or
screws as necessary.
1” x 1” Open Cell
Foam Tape
(Figure B3) on either side of the
Figure B3
Left and Right
Condenser Baffles
RC12 INSTALLATION KIT
• 1 Installation Manual
HYDRONIC
ONLY
• 1ea. 2-Position Connector & Pin Mate
• 14AWG Black Wire
1. Take unit out of packaging.
2. Slide unit into wall sleeve. The supply duct on the cool
ing chassis should line up with the supply vent on the
room cabinet. The weather angles should require no
adjustment.
3. Make sure baffles come in contact with the outdoor
louver.
IMPORTANT:
are factory installed on the RC
Baffles and open cellfoam tape seals
12 . Baffles fill the gap
between the rear of the chassis and the outdoor louver
and prevent the air from recirculating. Consult the factory
if baffles supplied are not deep enough to accommodate
wall sleeve application as system efficiency and reliability
are dependent on proper air flow. (
Figure A3
Baffles-Directed Inward
Figure A3)
Toward Coil
1” X 1/2”
Open Cell
Foam Tape
Air Intake
-
Removeable Filter
Hydronic Only: Remove the 2-position connector assembly from kit bag supplied with unit (this will have 2
yellow wires attached). Connect this 2-position connec
tor to the 2-position connection located on the bottom
of the control box panel.
To Connect Aquastat:
A. Remove the black jumper wire located on the
bottom panel of the control box (this is also terminated with a 2-position connector).
B. Cut the jumper wire in the middle and splice the
aquastat to the jumper.
C. Place the connecter back into original location.
Refer to wire diagram on the unit for details.
4. Connect line cord.
5. See Final Inspection and Startup on page 20.
5/8” Ref.
4” Knockout
-
1” X 1/2” Supply Air
Duct Foam Tape
The Right Fit For Comfort
1” X 1 ”
Open Cell
Foam Tape
RC12 PERFORMANCE DATA*
UNIT
SIZE
COOLING
BTUH
EER
12 12,200 10 390/340 40/35
15 15,500 9 440/390 40/35
*Refer to the charts on page 23 for electrical and
optional electric heat specifications.
8
EVAP CFM
HIGH/LOW
FRESH
AIR CFM
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