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The Right Fit for Comfort
ECR International Inc
2201 Dwyer Avenue
Utica, NY 13501
e-mail: info@RetroAire.com
An ISO 9001-20008Certified Company
R11C R12C R21C
R22C / H R23C / H R24C / H
Packaged Terminal Air Conditioner (PTAC)
™
Btuh
kW
Model
Packaged Terminal Heat Pump (PTHP)
Btuh
kW
Model
Installation, Operation,
& Maintenance Manual
R11C
Replacement for:
Westinghouse "RB" Series Chassis
R21C
Replacement for:
Climate Master (Friedrich) 701 Series
R23C | R23H
Replacement for:
IceCap Custom RSK Units
Straight cooling nominal capacities
9,000
12,000
2.6
3.5
R11C
R12C
R21C
R22C
R23C
R24C
Heat pump nominal capacities
9,000
12,000
2.6
3.5
R22H
R23H
R24H
Replacement for:
Lennox PTEIA Series
R22C | R22H
Replacement for:
ICE Cap RSK & IslandAir EZ-RK Series
R24C | R24H
Replacement for:
15,000
18,000
4.4
5.3
15,000
4.4
R12C
P/N 240008206, Rev. B [6/15/2010]
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Table of Contents
Troubleshooting
Related Manuals for Retro Aire R11C
Summary of Contents for Retro Aire R11C
- Page 1 R11C R12C R21C R22C / H R23C / H R24C / H Packaged Terminal Air Conditioner (PTAC) ™ Straight cooling nominal capacities Btuh 9,000 12,000 15,000 18,000 The Right Fit for Comfort R11C R12C R21C Model R22C R23C R24C Packaged Terminal Heat Pump (PTHP)
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Page 2: Table Of Contents
Field-installed options....4 R11C Chassis ....5 Final Inspection & Start-up 26-31 R12C Chassis . -
Page 3: Inspection
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Read This First (continued) General precautions Recognize this symbol as an indication of important safety information. DANGER Electrical Supply Carefully read the rating plate located on the front panel. Inspection The RetroAire replacement PTAC/PTHP must: Be properly connected... -
Page 4: General Product Information
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • General Product Information Controls Product description • Unit-mounted operating controls include thermostat, fan speed control, RetroAire Replacement Packaged Terminal Air Condition/Heat heat/cool switch, fan cycle switch, fresh air switch (if equipped) Pumps units are available in straight cooling (PTAC) or as heat pump •... -
Page 5: R11C Chassis
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • General Product Information (continued) Figure 1 R11C chassis Speed Switch Fresh Air Switch (FSS) (FAS) System Thermostat Switch (SS) Line Cord Electrical Diagram Aquastat Rating Cycle... -
Page 6: R21C Chassis
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Figure 3 R21C chassis Speed Fresh Air Switch Switch (FAS) (FSS) Rating System Plate Switch Thermostat (SS) High Electrical Pressure Cycle Diagram Switch Switch Line Hydronic (HPS) (FCS) Cord... -
Page 7: R23C/R23H Chassis
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • | R23H chassis Figure 5 R23C Speed Fresh Air Switch Switch (FAS) (FSS) System Switch Thermostat (SS) High Pressure Line Switch Cycle Cord Switch (HPS) (FCS) Electrical Aquastat Diagram... -
Page 8: Ptac/Pthp Model Coding
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • PTAC/PTHP Model Coding Figure 7 Model coding Position number: Chassis coding [verify with rating plate] Product Series Compressor Codes [ 11, 12, 21, = TECH 22, 23, 24 ] = LG = TOSHIBA Chassis Type... -
Page 9: Features
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Features Indoor coil freeze protection Anti-short cycle timer (standard) (standard) The microprocessor control uses this timing to prevent short-cycling This feature will prevent the indoor coil from freeze up in the cooling of the compressor. -
Page 10: Optional Wall-Mounted Thermostats
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Features Motorized fresh air damper Selecting a thermostat (optional) (by others) When selecting a thermostat other than one offered by EMI, choose The optional motorized fresh air damper allows fresh air into the space to be conditioned. -
Page 11: Preparing For The Installation Of The Ptac/Pthp
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Preparing for the Installation of the PTAC/PTHP WARNING Electrical power connection Moving parts can cause personal injury. Avoid contact with Check the RetroAire unit rating plate for circuit ampacity and moving parts when testing or servicing the unit. -
Page 12: Installation Instructions - R11C
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Installation Instructions — R11C Figure 8 R11C chassis and installation kit contents Installation kit contents • Installation manual • (1) top baffle • (Size 1) left & right baffles •... -
Page 13: Installation Instructions — R11C
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Installation Instructions — R11C (continued) Install the foam tape the old unit can be located in the subbase, under the chassis in a — Apply 2” x 1 ¹∕₂” open-cell foam strips special attachment, or above the chassis in a special attachment. -
Page 14: Installation Instructions - R12C
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Installation Instructions — R12C INSTALLATION FOR NEW CONSTRUCTION Figure 13 R12C chassis and installation kit contents Installation kit con- tents • Installation manual • (Size 1) left & right baffles •... -
Page 15: Installation Instructions — R12C
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Installation Instructions — R12C (continued) Figure 17 Foam tape installation against wall sleeve NOTICE The correct condenser air baffles must be installed or performance may be impaired. Install the foam tape —... -
Page 16: Installation Instructions - R21C
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Installation Instructions — R21C Figure 18 R12C chassis and installation kit contents Installation kit contents • Installation manual • (1 set) left & right baffles • 1”... -
Page 17: Installation Instructions — R21C
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Installation Instructions — R21C (continued) Figure 22 Front view of chassis NOTICE The correct condenser air baffles must be installed or performances may be impaired. Figure 21 Direction of baffles and foam installation Foam 1"... -
Page 18: Installation Instructions - R22C | R22H
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Installation Instructions — R22C | R22H | R45H chassis and installation kit contents Figure 23 R45C Installation kit contents • Installation manual • (Size 1) left & right baffles •... -
Page 19: Installation Instructions — R22C | R22H
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Installation Instructions — R22C | R22H CONTROLS (continued) Figure 27 Foam installation Weather Angle NOTICE The correct condenser air baffles must be installed or performances may be impaired. Install the foam tape —... -
Page 20: Installation Instructions - R23C | R23H
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Installation Instructions — R23C | R23H | R23H chassis and installation kit contents Figure 28 R23C Installation kit contents • Installation manual • (1 set) left & right baffles •... - Page 21 Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Installation Instructions — R23C | R23H (continued) Connecting the optional hydronic coil — if the hydronic heat option has been ordered, then the hydronic coil will need to NOTICE be field installed on the new unit.
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Page 22: Installation Instructions - R24C | R24H
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Installation Instructions — R24C | R24H | R90H chassis and installation kit contents Figure 33 R90C Installation kit contents • Installation manual • (1 set) left & right baffles •... - Page 23 Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Installation Instructions — R24C | R24H (continued) located in the subbase, under the chassis in a special attachment, NOTICE or above the chassis in a special attachment. It is necessary to know where the coil is to be located and the physical size of the The correct condenser air baffles must be installed or performances coil so the new coil can be verified if ordered for replacement.
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Page 24: Sequence Of Operation
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Sequence of Operation Trouble The following Sequence of Operation Code Status applies to PTAC/PTHP units. (Blinks) The R_ _C units are straight cool, single stage air conditioners avail- Normal Operation able with electric or hydronic heat. -
Page 25: R_ _C / R_ _H: Heating Operation
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Sequence of Operation (continued) with auxiliary heat will continue until the outdoor coil sensor NOTE: reaches 50 ºF (10 ºC). • Remote-Mount Cooling Operation depends on the features of the wall-mounted thermostat. -
Page 26: Final Inspection & Start-Up
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Final Inspection & Start-up CAUTION Before operating the unit Any obstruction of supply air, including the use of deflector baffles, may cause condensate to form on the louver or cabinet ☐... -
Page 27: Setting The Control Board Jumpers
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Final Inspection & Start-up (continued) Figure 42 TEST jumper (selects normal or test mode) NOTICE All wiring should be in accordance with both the National Test mode Normal operation Electric Code (NEC) and the local building codes. -
Page 28: Start Up
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Final Inspection & Start-up (continued) Figure 44 Typical Representation of a Unit Mount Control Start Up Ensure the unit is secure and level. Heat pump units only —... -
Page 29: Heat Pump Pthp's
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Final Inspection & Start-up (continued) thermostat or system switch in the HEAT position. Place the NOTICE Adjust the thermostat to a warmer temperature. The room temperature must be above 65°F (18°C) for the The following should then occur: compressor to operate in cooling mode on PTAC's with unit- •... - Page 30 Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Final Inspection & Start-up (continued) starts running. The compressor and outdoor fan should then turn on NOTICE and cold air will begin to flow from the unit. Let the unit continue operating to cool the room and remove humidity.
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Page 31: Start-Up
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Final Inspection & Start-up (continued) and turn on the indoor fan. NOTICE If a cooler room temperature is desired, adjust the thermostat to Room temperature must be below 85°F(29°C) to energize the a cooler temperature setting. -
Page 32: Maintenance & Troubleshooting
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Maintenance & Troubleshooting Figure 45 Manual Reset Limit Switch Monthly inspection and maintenance Reset Button DANGER Electrical shock hazard — disconnect power to the *Note: RetroAire replacement PTAC/PTHP before servicing or ac- Button will pop cessing the control compartment. -
Page 33: Heat Pump Units - Temporary Emergency Heating Mode
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Maintenance & Troubleshooting (continued) Look for oil leaks or stains on or around all braze joints and refrig- sensor from the circuit board. A 2-stage thermostat will provide erant lines. -
Page 34: Troubleshooting
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Maintenance & Troubleshooting (continued) Troubleshooting WARNING The troubleshooting procedures below should only be conducted by a qualified technician. Symptom Suggestion No heat or cooling • Check to see if the unit has power and if the thermostat is satisfied. If the thermostat is not satisfied, call your installing contractor or service contractor. -
Page 35: Performance Data
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Performance Data Table 2 R11 | R21 performance data Model Cooling Sensible Indoor Air Fresh Air Inlet Outdoor Shipping R11 | R21 Heat Flow Flow Sound Level Weight Ratio Btuh (kW) -
Page 36: Hydronic Performance Data
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Hydronic Heat Performance Table 5 R21C/H hydronic heat * — performance 104-101 (single row coil) Air Entering Dry Air Entering Air Entering Flow Hydronic Coil Code Water Flow Water Entering Capacity... -
Page 37: Electrical Specifications
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Electrical Specifications IMPORTANT Due to ongoing product development, designs, specifications, and performance are subject to change without notice. Please consult the factory for further information. Table 6 R11, R21, R22, R23, R24 - 9.000 BTU electrical specifications Power Supply... -
Page 38: Notice
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Electrical Specifications IMPORTANT Due to ongoing product development, designs, specifications, and performance are subject to change without notice. Please consult the factory for further information. Table 8 R11, R21, R22, R23, R24 - Cooling Capacity 15 electrical specifications Power Supply... -
Page 39: Electrical Specifications
Replacement Packaged Terminal Air-Conditioning / Heat Pump • Installation, Operation, and Maintenance Manual • Electrical Specifications Table 10 R12 - 12,000 BTU electrical specifications Power Supply Indoor Fan Outdoor Fan Compressor Electric Heat Unit Electrical Ratings Volt — 1–60 Motor Motor Volt Htr #... - Page 40 Warranty ECR International Inc 2201 Dwyer Avenue Utica, NY 13501 e-mail: info@RetroAire.com An ISO 9001-2008 Certified Company The Right Fit for Comfort P/N 240008206, Rev. B [6/15/2010]...
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