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R10C / H R20C / H R35C / H
R45C / H
and R20C with Fedders
™
Unizone Option
The Right Fit for Comfort
Packaged Terminal Air Conditioner (PTAC)
Packaged Terminal Heat Pump (PTHP)
Installation, Operation,
& Maintenance Manual
ECR International Inc
2201 Dwyer Avenue
Utica, NY 13501
e-mail: info@RetroAire.com
An ISO 9001-2008 Certified Company
P/N 240010328, Rev. A [10/15/2013]
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Table of Contents
Summary of Contents for Retroactive R10C
- Page 1 R10C / H R20C / H R35C / H R45C / H and R20C with Fedders ™ Unizone Option The Right Fit for Comfort Packaged Terminal Air Conditioner (PTAC) Packaged Terminal Heat Pump (PTHP) Installation, Operation, & Maintenance Manual ECR International Inc...
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Page 2: Table Of Contents
Performance Data ......................5 Dimensional/Physical Data ....................6 Product Description ....................... 9 PTAC/PTHP Installation Preparation .................14 Installation Instructions — R10C R10H ................15 Installation Instructions — R20C| R20H ................17 Installation Instructions — R20C With Fedders Uni-Zone Option ..........19 Installation Instructions — R35C| R35H ................21 Installation Instructions —... -
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 Safety Information All field wiring shall conform to requirements of authority having jurisdiction or in absence of such requirements: • Installation by qualified personnel. • United States - National Electrical Code, ANSI/NFPA 70 • Turn off electrical supply before servicing unit. •... -
Page 5: Performance Data
Table 1 Performance Data - Cooling Outdoor Cooling Indoor Air Fresh Air Shipping Models Sound Sensible Capacity Flow Inlet Flow Weight Level R10C R20C Voltage Heat Ratio R35C R45C Btuh (kW) CFM (L/S) CFM (L/s) lbs (Kg) 9000 (2.7) 440 (207.7) R_ _C 09 0.79 35 (17) 140 (63.5) -
Page 6: Dimensional/Physical Data
DIMENSIONAL/PHYSICAL DATA Figure 1 R10C R10H Dimensions - Inches (mm) Figure 2 R20C R20H Dimensions - Inches (mm) The Right Fit for Comfort P/N 240010328, Rev. A [10/15/2013]... - Page 7 DIMENSIONAL/PHYSICAL DATA Figure 3 R20C With Fedders Unizone Option - Dimensions - Inches (mm) WALL SLEEVE [102] [464] [1194] 18 1/4" 47" 4" [374] [660] 14 3/4" 26" 1091 [100] 43" 4" [25] CABINET 1" AIR FILTER 8" x 30" PERMANENT ALUMINUM MESH Figure 4 R35C...
- Page 8 DIMENSIONAL/PHYSICAL DATA Figure 5 R45C R45H Dimensions - Inches (mm) The Right Fit for Comfort P/N 240010328, Rev. A [10/15/2013]...
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Page 9: Product Description
PRODUCT DESCRIPTION Figure 6 R10C R10H Chassis Unit Mount Electrical Fresh Air Diagram Switch (FAS) Speed Switch (FSS) Thermostat System Switch (SS) Hydronic NO/NC Switch Valve Orientation Switch (VOS) Remote Line Cord Fresh Air Aquastat Connection Rating Speed (Factory) Installed... - Page 10 PRODUCT DESCRIPTION Figure 8 R20C With Fedders Uni-Zone Option Fresh Air Switch (FAS) Unit mount & Remote Mount System Switch Speed Line (SS) Switch Cord (FSS) High Pressure Electrical Line Cycle Switch Rating Diagram Cord Switch (HPS) Plate (FCS) Aquastat W/ Jumper MTR Valve Figure 9 R35C...
- Page 11 PRODUCT DESCRIPTION Figure 10 R45C R45H Chassis Unit Mount Electrical Diagram Speed Fresh Air Switch Switch (FAS) (FSS) System Switch Thermostat (SS) Remote Mount Line Cord Aquastat Fresh Air W/ Jumper Speed Cycle Switch Switch Switch MTR Valve (FAS) (FSS) (FCS) Rating High...
- Page 12 PRODUCT DESCRIPTION Product Description Controls • RetroAire Replacement Packaged Terminal Air • Unit-mounted operating controls include thermostat, fan Condition/Heat Pumps units are straight cooling (PTAC) speed control, heat/cool switch, fan cycle switch, fresh or heat pump systems (PTHP). air switch (if equipped). •...
- Page 13 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 14: Ptac/Pthp 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 15: Installation Instructions - R10C | R10H
INSTALLATION INSTRUCTIONS - R10C R10H Figure 11 Weather Angles (in factory location) Installation - R10C R10H 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”... - Page 16 INSTALLATION INSTRUCTIONS - R10C R10H • Remove 2-position connector assembly from kit Figure 14 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 17: Installation Instructions - R20C| R20H
INSTALLATION INSTRUCTIONS — R20C| R20H Installation - R20C R20H Figure 15 Weather Angle - Factory Location Verify existing wall thickness — distance from INSTALLATION FOR NEW CONSTRUCTION condenser coil to outdoor louver varies with sleeve depth. • Standard air baffles are included with each unit to accommodate most installation requirements. - Page 18 INSTALLATION INSTRUCTIONS — R20C| R20H Connect (optional) hydronic coil controls — If Figure 18 Foam tape installation against wall hydronic heat option has been ordered, hydronic coils sleeve will need to be field installed on new unit. A. Hydronic coils are not factory installed and need to be ordered and field installed on new unit.
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Page 19: Installation Instructions - R20C With Fedders Uni-Zone Option
INSTALLATION INSTRUCTIONS — R20C WITH FEDDERS UNI-ZONE OPTION Installation - R20C w/Fedders Uni-Zone Option Figure 19 Baffle Direction and Foam Verify existing wall thickness — distance from Installation condenser coil to outdoor louver varies with sleeve 1/2" x 1/2" Foam Tape depth. - Page 20 INSTALLATION INSTRUCTIONS — R20C WITH FEDDERS UNI-ZONE OPTION • Remove 2-position connector assembly from kit 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) Aquastat A.
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Page 21: Installation Instructions - R35C| R35H
INSTALLATION INSTRUCTIONS — R35C| R35H Installation - R35C Figure 20 Direction Of Baffles and Foam Verify existing wall thickness — distance from Installation condenser coil to outdoor louver varies with sleeve depth. • Chassis includes ½" air baffle to accommodate the most common condenser coil to outdoor louver requirements. - Page 22 INSTALLATION INSTRUCTIONS — R35C| R35H Field install (optional) Aquastat 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. C. Place connector back into original location. Refer to wiring diagram on unit for details.
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Page 23: Installation Instructions - R45C | R45H
INSTALLATION INSTRUCTIONS — R45C | R45H Installation - R45C/R45H Figure 22 Factory Located Weather Angle Verify existing wall thickness — distance from condenser coil to outdoor louver varies with sleeve depth. • Two sets of air baffles are included to accommodate most installation requirements. - Page 24 INSTALLATION INSTRUCTIONS — R45C | R45H B. Coil with old unit can be located in subbase, under or above chassis in special attachment. It is necessary to know where coil is to be located and physical size of coil if ordered for replacement. New coil should be installed in same manner as coil it is replacing.
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Page 25: Sequence Of Operation
SEQUENCE OF OPERATION General Figure 25 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 26 SEQUENCE OF OPERATION R_ _C / R_ _H; Cooling Operation R_ _C / R_ _ H; Heating Operation System Switch [SS] set to “Heat”, and Fan Cycle ( For unit mount controls) Switch [FCS] set to “On” (Continuous Fan Operation), System Switch [SS] set to “Cool”, and Fan Cycle indoor fan motor starts.
- Page 27 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 25ºF (-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 28: 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 29: Electrical Connections
INSPECTION & START-UP Electrical Connections Figure 28 TEST Jumper (selects heat pump or straight cooling) WARNING Electrical shock hazard. Disconnect all power Straight Heat Pump before removing chassis, performing any cleaning, Cool Mode Mode Mode servicing, or maintenance. Failure to do so could (jumper center (jumper center &... - Page 30 INSPECTION & START-UP Start Up Figure 30 Circuit Board Verify unit is secure and level. TEST JUMPER 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 temperature is below 60°F.
- Page 31 INSPECTION & START-UP Heating Cycle — Electric Option NOTICE Place thermostat or system switch in HEAT position. DO NOT rotate thermostat knob back and forth Adjust thermostat for warmer temperature until from heating to cooling. This causes compressor to indoor fan starts running and electric heater coil starts cycle on and off rapidly and will cause damage to emitting heat.
- Page 32 INSPECTION & START-UP After unit starts running and area is warmer, adjust Warmer room temperature desired, adjust thermostat thermostat to cooler temperature, hydronic valve will to a warmer temperature. The cooling mode will cease close and indoor fan will switch off after sixty-second and the compressor and outdoor fan will stop.
- Page 33 INSPECTION & START-UP Auxiliary Heating Operation — Heat Pump Units – After unit starts running and space gets — Outdoor Temperature Below 40°F (4C°) — warmer, hydronic valve closes and indoor fan Electric Option switches off after sixty-second purge time has elapsed.
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Page 34: Maintenance
MAINTENANCE Monthly Inspection And Maintenance To manually reset limit switch; – Remove control box cover. WARNING – Locate limit switch. Electrical shock hazard — disconnect power to – Push reset button in. See Figure 32, page 37. replacement PTAC/PTHP before servicing or accessing control compartment. - Page 35 MAINTENANCE • Check fan motors and blower assemblies. Some units Heat Pump Units — Temporary Emergency Heating Mode may require drop of light oil to motors and/or bearing assemblies (look for oil cups). Verify set-screws and Heat pump failure, control board can be forced into electric motor mounting hardware are secure.
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Page 36: Troubleshooting
TROUBLESHOOTING Troubleshooting WARNING Fire, explosion, and electrical shock hazard. Troubleshooting procedures shall be conducted by a qualified technician. Improper installation 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 37: Hydronic Heat Performance
HYDRONIC HEAT PERFORMANCE Table 5 R10 | R20 | R35 | R45 C/H hydronic heat * — performance 104-101 (single row coil) Made in USA P/N 2400103028, Rev. A [10/15/2013]... -
Page 38: Electrical Specifications
ELECTRICAL SPECIFICATIONS Table 6 R10, R20, R35, R45, - 9.000 Btu Electrical Specifications Power Supply Indoor Fan Outdoor Fan Compressor Electric Heat Unit Electrical Ratings Volt — 1–60 Motor Motor Volt Htr # Volt MOCP Plug 115V 0.09 0.125 10.5 12.4 5-15P 115V... - Page 39 ELECTRICAL SPECIFICATIONS Table 8 R10, R20, R35, R45, - Cooling Capacity 15 Electrical Specifications Power Supply Indoor Fan Outdoor Fan Compressor Electric Heat Unit Electrical Ratings Volt — 1–60 Motor Motor Volt Htr # Volt MOCP Plug 10.6 6–15P 1636 10.4 6–15P 11.5...
- Page 40 ELECTRICAL SPECIFICATIONS The Right Fit for Comfort P/N 240010328, Rev. A [10/15/2013]...
- Page 41 NOTES Made in USA P/N 2400103028, Rev. A [10/15/2013]...
- Page 42 NOTES The Right Fit for Comfort P/N 240010328, Rev. A [10/15/2013]...
- Page 44 ECR International Inc 2201 Dwyer Avenue Utica, NY 13501 e-mail: info@RetroAire.com An ISO 9001-2008 Certified Company...
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