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Summary of Contents for Retro Aire R11C
- Page 1 R11C R12C R21C R22C / H R23C / H R24C / H Packaged Terminal Air Conditioner (PTAC) Installation, Operation & Maintenance Manual ECR International, Inc. 2201 Dwyer Avenue • Utica, New York 13501 Ph: 800.325.5279 • Web: retroaire.com P/N 240010329, Rev. B [02/15/2014...
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Page 2: Table Of Contents
Receiving Information ..................... 3 Important Safety Information ................... 4 Performance Data ......................5 Dimensional/Physical Data - R11C ..................6 Dimensional/Physical Data - R12C ..................7 Dimensional/Physical Data - R21C ..................8 Dimensional/Physical Data - R22 C/H & R23C /H ..............9 Dimensional/Physical Data - R24 C/H ................ -
Page 3: Receiving Information
RECEIVING INFORMATION Shipping damage MUST be reported to the carrier IMMEDIATELY. Examine exterior. Remove cover and examine compressor and piping for signs of damage. Inspection General Information Check shipment against bill of lading. Installation shall be completed by qualified agency. Retain this manual and warranty for future reference. -
Page 4: Important Safety Information
IMPORTANT SAFETY INFORMATION All field wiring shall conform to requirements of authority WARNING having jurisdiction or in absence of such requirements: Tampering with PTAC/PTHP is dangerous and could • United States - National Electrical Code, ANSI/NFPA 70 result in serious injury or death. Do not modify or •... -
Page 5: Performance Data
Table 1 Performance Data - Cooling Outdoor Models Cooling Indoor Air Fresh Air Shipping Sound Sensible Capacity Flow Inlet Flow Weight R11C R21C Level Voltage Heat R22C R23C Ratio Btuh (kW) CFM (L/S) CFM (L/s) lbs (Kg) R24C 9000 (2.7) 440 (207.7) -
Page 6: Dimensional/Physical Data - R11C
DIMENSIONAL/PHYSICAL DATA - R11C Figure 1 - R11C Dimensions - Inches (mm) Model Dimension R11C in. (mm) 21.81 (554) 34.44 (875) 13.96 (355) 18.63 (473) 26.00 (660) 18.62 (473) 4.00 (102) 3.60 (91) The Right Fit for Comfort P/N 240010329, Rev. B [02/15/2014... -
Page 7: Dimensional/Physical Data - R12C
DIMENSIONAL/PHYSICAL DATA - R12C Figure 2 - R12C Chassis Air Outlet Model Dimension R12C in. (mm) 21.97 (558) 36.25 (921) 17.47 (444) 25.48 (647) 8.39 (213) 4.10 (104) 12.54 (318) Weather 4.66 (118) Angle Made in USA P/N 240010329, Rev. B [02/15/2014... -
Page 8: Dimensional/Physical Data - R21C
DIMENSIONAL/PHYSICAL DATA - R21C Figure 3 - R21C Chassis Model Model Dimension R21C (09 - 12) R21C (15 -18) in. (mm) in. (mm) 35.88 (911.2) 35.88 (911.2) 14.78 (375.5) 14.78 (375.5) 7.75 (196.9) 14.40 (365.7) 20.25 (514) 24.34 (618.2) 18.98 (482.1) 28.28 (718.3) 5.66 (143.8) 5.66 (143.8) -
Page 9: Dimensional/Physical Data - R22 C/H & R23C /H
DIMENSIONAL/PHYSICAL DATA - R22 C/H & R23C /H Figure 4 - R22C/R22H Chassis Model Dimension R22C/R22H in. (mm) 35.89 (912) 14.98 (380) .94 (24) 8.98 (228) 19.09 (485) 5.00 (127) 17 (432) 38.04 (966) 25.13 (638) .96 (24) Figure 5 - R23C/R23H Chassis Model Dimension R23C/R23H... -
Page 10: Dimensional/Physical Data - R24 C/H
DIMENSIONAL/PHYSICAL DATA - R24 C/H Figure 6 - R24C/R24H Chassis Model Dimension R24C/R24H in. (mm) 40.02 (1017) 1.19 (30) 19.19 (487) 9.18 (233) 16.87 (429) 42.08 (1069) 25.38 (645) .84 (21) The Right Fit for Comfort P/N 240010329, Rev. B [02/15/2014... -
Page 11: Product Description
PRODUCT DESCRIPTION - R11C & R12C Figure 7 - R11C Chassis Speed Switch Fresh Air Switch (FSS) (FAS) System Thermostat Switch (SS) Line Cord Electrical Diagram Control Rating Cycle Plate W/ Jumper Switch (FCS) MTR Valve Hydronic NO/NC Switch Valve Orientation... - Page 12 PRODUCT DESCRIPTION - R21C & R22 C/H Figure 9 - 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 NO/NC Switch Valve Orientation Switch (VOS) MTR Valve Control...
- Page 13 PRODUCT DESCRIPTION - R23 C/H & R24C/H - R23C | R23H Chassis Figure 11 Speed Fresh Air Switch Switch (FAS) (FSS) System Switch Thermostat (SS) High Pressure Line Cycle Switch Cord Switch (HPS) (FCS) Electrical Diagram Control W/ Jumper Rating MTR Valve Plate Figure 12...
- Page 14 PRODUCT DESCRIPTION Product Description Controls • RetroAire Replacement Packaged Terminal Air • Unit-mounted operating controls include thermostat, fan Condition/Heat Pumps units are straight cooling speed control, heat/cool switch, fan cycle switch, fresh (PTAC) or heat pump systems (PTHP). air switch (if equipped). •...
- Page 15 PRODUCT DESCRIPTION Manufacturer Installed Options (Consult Field-Installed Accessories • Hydronic heat — coil assembly is shipped loose for field manufacturer) installation. • 265/277V(12 and 15 only) • Remote wall thermostat — digital 1-stage or 2-stage available. • 115V (09 &12 Models Only) •...
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Page 16: Installation Preparation
PTAC/PTHP INSTALLATION PREPARATION Electrical Power Connection WARNING Verify RetroAire unit rating plate for circuit ampacity Electrical shock hazard. Before opening existing and required breaker or fuse size. unit, open power supply disconnect switch. Secure Verify existing breaker or fuse is correct size. switch in open position during installation. -
Page 17: Installation Instructions - R11C
INSTALLATION INSTRUCTIONS - R11C Installation - R11C Figure 13 - Condenser Baffles Verify existing wall thickness — distance from condenser coil to outdoor louver varies with sleeve depth. • Unit(s) ship standard with 1-3/8" (35mm) & 1-1∕8” (38mm) baffles. Figure 16, page •... - Page 18 INSTALLATION INSTRUCTIONS - R11C • Remove 2-position connector assembly from kit Figure 16 - Baffle Install bag supplied with unit (2 yellow wires attached). • Connect 2-position connector to 2-position connection located on bottom of control box panel. Field install (optional) Control A.
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Page 19: Installation Instructions - R12C
INSTALLATION INSTRUCTIONS — R12C Installation - R12C Figure 17 - Weather Angle - Factory Location Verify existing wall thickness — distance from INSTALLATION FOR NEW CONSTRUCTION condenser coil to outdoor louver varies with sleeve depth. • Two sets of air baffles are included with each unit to accommodate most installation requirements. - Page 20 INSTALLATION INSTRUCTIONS — R12C • Remove 2-position connector assembly from kit Figure 20 - Foam Tape Installation Against bag supplied with unit (2 yellow wires attached). Wall Sleeve • Connect 2-position connector to 2-position connection located on bottom of control box panel.
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Page 21: Installation Instructions - R21C
INSTALLATION INSTRUCTIONS — R21C Installation - R21C Figure 21 - Direction Of Baffles Verify existing wall thickness — distance from Baffles condenser coil to outdoor louver varies with sleeve depth. 09/12K • Chassis includes standard air baffles to accommodate most common condenser coil to outdoor louver requirements •... - Page 22 INSTALLATION INSTRUCTIONS — R21C Field install (optional) Control Figure 24 - Front View Of Chassis A. Remove black jumper wire located on bottom panel of control box (also terminated with 2-position connector). B. Cut jumper wire in middle and splice control to jumper.
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Page 23: Installation Instructions - R22C | R22H
INSTALLATION INSTRUCTIONS — R22C | R22H Installation - R22C/R22H Figure 25 - Baffles Verify existing wall thickness — distance from condenser coil to outdoor louver varies with sleeve depth. • Units are shipped with baffles factory installed Apply 1/2” x 3/4” open-cell foam strips around supply air duct to ensure all conditioned air is delivered into room. - Page 24 INSTALLATION INSTRUCTIONS — R22C | R22H Hard-wired units — If unit is hard wired, follow Figure 28 - Foam Installation Weather Seal instructions on pages 41-44 to verify existing wiring and over current protection. A. Remove line cord wires from PTAC/PTHP power entrance terminals.
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Page 25: Installation Instructions - R23C | R23H
INSTALLATION INSTRUCTIONS — R23C | R23H Installation - R23C/R23H Figure 29 - Direction Of Baffles And Foam Verify existing wall thickness — distance from Installation condenser coil to outdoor louver varies with sleeve depth. • Chassis includes standard air baffles to accommodate most common condenser coil to outdoor louver requirements •... - Page 26 INSTALLATION INSTRUCTIONS — R23C | R23H • Remove 2-position connector assembly from kit Figure 32 - Foam Tape Installation Against bag supplied with unit (2 yellow wires attached). Wall Sleeves • Connect 2-position connector to 2-position connection located on bottom of control box panel.
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Page 27: Installation Instructions - R24C | R24H
INSTALLATION INSTRUCTIONS — R24C | R24H Installation - R24C/R24H Figure 33 - Baffle Locations Verify existing wall thickness — distance from condenser coil to outdoor louver varies with sleeve depth. • Chassis includes standard air baffles to accommodate most common condenser coil to outdoor louver requirements •... - Page 28 INSTALLATION INSTRUCTIONS — R24C | R24H B. Coil with old unit can be located in subbase, under Figure 36 - Foam Tape Installation Against chassis in special attachment. It is necessary to Wall Sleeves know where coil is to be located and physical size of coil if ordered for replacement.
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Page 29: Sequence Of Operation
SEQUENCE OF OPERATION General Figure 37 - Control Board R_ _C units are straight cool, single stage air conditioners available with electric or hydronic heat. R_ _H units are limited range, single stage heat pump. Mechanical compression heating (heat pump mode) is locked out at outdoor temperatures of approximately 35ºF (1.7ºC) and below. - Page 30 SEQUENCE OF OPERATION R_ _C / R_ _H; Cooling Operation R_ _C / R_ _ H; Heating Operation ( For unit mount controls) System Switch [SS] set to “Heat”, and Fan Cycle Switch [FCS] set to “On” (Continuous Fan Operation), System Switch [SS] set to “Cool”, and Fan Cycle indoor fan motor starts.
- Page 31 SEQUENCE OF OPERATION • R_ _H; Auxiliary Heating “Electric” or “Hydronic” • “Remote Wall Thermostat Controls” A. Cooling and Heating operate identical to unit Outdoor coil temperature falls to 25º F (-4ºC) or mount controls. below for 180 seconds at anytime during heating call, compressor and outdoor fan motor are de-energized B.
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Page 32: Inspection & Start-Up
INSPECTION & START-UP Before Operating Unit Any obstruction of supply air, including use of deflector baffles, may cause condensate to form on louver or cabinet ☐ Read and understand contents of this manual. (see Figure 38, page 31). ☐ Install unit per instructions outlined in this manual and all applicable local and national codes. -
Page 33: Test Mode
FINAL INSPECTION & START-UP Electrical Connections Figure 40 - HP Jumper (selects heat pump or Installation and wiring shall be in accordance with straight cooling) requirements of authority having jurisdiction In absence of such requirements refer to: • USA- National Electrical Code, ANSI/NFPA 70. Heat Pump Mode •... - Page 34 FINAL INSPECTION & START-UP Figure 42 - Circuit board TEST JUMPER HEAT PUMP JUMPER The Right Fit for Comfort P/N 240010329, Rev. B [02/15/2014...
- Page 35 FINAL INSPECTION & START-UP Start Up Figure 43 - Typical Representation - Unit Verify unit is secure and level. Mount Control Heat pump units only — Verify thermostatic drain pan valve is operating correctly. Valve should be closed if temperature is above 60° F and open if below 60°F. Test fresh air damper, if equipped, by setting damper door switch to "YES".
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Page 36: Important Information
INSPECTION & START-UP Straight Cooling PTAC's Heating Cycle — Hydronic Option Important Information Before Starting The unit: • Room temperature must be above 65°F (18°C) for • Verify motor valve is rated for correct voltage. compressor to operate in cooling mode on PTAC's with unit-mounted controllers. - Page 37 INSPECTION & START-UP Heat Pump PTHP's If cooler room temperature is desired, adjust thermostat to cooler temperature setting. Heating Unit is equipped with reversing valve, energized for cooling mode stops and compressor and outdoor fan stop. and de-energized in heating mode. Indoor fan will switch off after sixty-second purge time Cooling Cycle —...
- Page 38 INSPECTION & START-UP Testing Completion For Heat Pumps Auxiliary Heating Operation — Heat Pump Units — Operation testing is complete. Outdoor Temperature Below 40°F (4°C) — Hydronic If TEST jumper was set to test mode verify it is set back to Option normal operation.
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Page 39: Maintenance
MAINTENANCE WARNING Figure 44 - Manual Reset Limit Switch Electrical shock hazard. Disconnect power to unit Reset Button before servicing or accessing control compartment. Failure to do follow these instructions could result in death or serious injury. *Note: NOTICE Button will pop out when limit Perform regular service and maintenance by switch opens. - Page 40 MAINTENANCE Troubleshooting Sensors Air leaks may make the conditioned area uncomfortably drafty or produce noises. Visually See Figure 45 for location of sensor connections to inspect foam gasket between wall and unit, taking control board. note of separation between air inlet for condenser If temperature response of indoor or outdoor sensor is and condenser coil discharge.
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Page 41: Troubleshooting
TROUBLESHOOTING WARNING NOTICE Electrical shock hazard. Disconnect power to unit Have qualified technician conduct troubleshooting before servicing or accessing control compartment. procedures. Failure To follow these instructions could result in death or serious injury. Symptom Suggestion • Verify unit has power and thermostat is satisfied. If thermostat is not satisfied, No heat or cooling call your installing contractor or service contractor. -
Page 42: Electrical Specifications
ELECTRICAL SPECIFICATIONS Table 5 R11, R21, R22, R23, R24 - 9,000 BTU Electrical Specifications Power Indoor Outdoor Supply Compressor Electric Heat Unit Electrical Ratings Fan Motor Volt 1–60 Motor Volt Volt MOCP Plug 0.09 0.125 10.5 12.4 5-15P 115V 45.6 0.09 0.125 13.0... - Page 43 ELECTRICAL SPECIFICATIONS Table 7 R11,R12, R21, R22, R23, R24 - 15,000 BTU Electrical Specifications Power Indoor Outdoor Supply Electric Heat Unit Electrical Ratings Compressor Volt Motor Motor 1–60 Volt Volt MCA MOCP Plug 10.6 6–15P 1636 10.4 6–15P 2000 11.5 2454 11.8 12.4...
- Page 44 ELECTRICAL SPECIFICATIONS Table 9 Electrical Plug (Rating) The Right Fit for Comfort P/N 240010329, Rev. B [02/15/2014...
- Page 45 NOTES Made in USA P/N 240010329, Rev. B [02/15/2014...
- Page 46 NOTES The Right Fit for Comfort P/N 240010329, Rev. B [02/15/2014...
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Page 47: Warranty
LIMITED PRODUCT WARRANTY RetroAire offers to the original purchaser/owner that under normal use and maintenance for comfort cooling and conditioning applications, all RetroAire equipment will be free from defects in material and workmanship for a period of 12 months from the documented date of original installation or 18 months from the date of manufacture, if the documented date of original installation is not available. - Page 48 ECR International, Inc. 2201 Dwyer Avenue • Utica, New York 13501 Phone: 1.800.325.5279 • Web: retroaire.com...
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