ECR RetroAire R11C Installation, Operation & Maintenance Manual Download Page 12 | Manualshive

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Figure 10

R24C | R24H Chassis

Rating

Plate

Electrical

Diagram

Fresh Air Switch

(FAS)

Thermostat

Fan

Speed

Switch

(FSS)

System

Switch

(SS)

Line

Cord

Fan

Cycle

Switch

(FCS)

High

Pressure

Switch

(HPS)

Control

W/ Jumper

MTR Valve

PRODUCT DESCRIPTION

The Right Fit for Comfort

12

P/N 240010329, Rev. A [10/15/2013]

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Summary of Contents for RetroAire R11C

Page 1: ...tica NY 13501 e mail info RetroAire com The Right Fit for Comfort P N 240010329 Rev A 10 15 2013 An ISO 9001 2008 Certified Company R11C R21C R22C H R23C H R24C H Packaged Terminal Air Conditioner PTAC Installation Operation Maintenance Manual ...

Page 2: ...d in accor dance with AHRI Standards 310 380 UL 484 Receiving Information 3 Important Safety Information 4 Performance Data 5 Dimensional Physical Data 6 Product Description 10 PTAC PTHP Installation Preparation 15 Installation Instructions R11C 16 Installation Instructions R21C 18 Installation Instructions R22C R22H 20 Installation Instructions R23C R23H 22 Installation Instructions R24C R24H 24 ...

Page 3: ...r inspection report Purchaser must notify Manufacturer s Service department of all damage and is responsible for filing any necessary claims with carrier Customer Service 800 228 9364 General Information Installation shall be completed by qualified agency Retain this manual and warranty for future reference Installer review this manual to verify unit has been installed correctly Run unit for one c...

Page 4: ...ker as listed on Rating Plate Connect unit to properly grounded electrical supply Do not fail to properly ground this unit Tampering voids all warranties DANGER Indicates a hazardous situation which if not avoided WILL result in death or serious injury WARNING Indicates a hazardous situation which if not avoided could result in death or serious injury CAUTION Indicates a hazardous situation which ...

Page 5: ...ominal Capacities 9 000 12 000 15 000 18 000 Btuh 2 6 3 5 4 4 5 3 kW Heat Pump Nominal Capacities 9 000 12 000 15 000 Btuh 2 6 3 5 4 4 kW Table 2 Performance Data Heating Models R22H R23H R24H Voltage Cooling Capacity EER Indoor Air Flow Cooling Heating Capacity COP Indoor Air Flow Heating Sensible Heat Ratio Fresh Air Flow Outdoor Sound Level Shipping Weight Btuh kW CFM L S Btuh kW CFM L S CFM L ...

Page 6: ...sions Inches mm Dimension Model R11C in mm A 21 81 554 B 34 44 875 C 13 96 355 D 18 63 473 E 26 00 660 F 18 62 473 G 4 00 102 H 3 60 91 DIMENSIONAL PHYSICAL DATA The Right Fit for Comfort 6 P N 240010329 Rev A 10 15 2013 ...

Page 7: ... Dimension Model Model R21C 09 in mm R21C 18 in mm A 35 88 911 2 35 88 911 2 B 14 78 375 5 14 78 375 5 C 7 75 196 9 14 40 365 7 D 20 25 514 24 34 618 2 E 18 98 482 1 F 28 28 718 3 G 5 66 143 8 5 66 143 8 P N 240010329 Rev A 10 15 2013 7 Made in USA ...

Page 8: ...B 78 20 C 9 95 253 D 19 21 488 E 15 05 382 F 25 13 638 G 43 67 1109 H 50 13 Figure 4 R23C R23H Chassis Dimension Model R22C R22H in mm A 35 89 912 B 14 98 380 C 94 24 D 8 98 228 E 19 09 485 F 5 00 127 G 17 432 H 38 04 966 I 25 13 638 J 96 24 The Right Fit for Comfort 8 P N 240010329 Rev A 10 15 2013 ...

Page 9: ... Model R24C R24H in mm A 40 02 1017 B 1 19 30 C 19 19 487 D 9 18 233 E 16 87 429 F 42 08 1069 G 25 38 645 H 84 21 Figure 5 R24C R24H Chassis DIMENSIONAL PHYSICAL DATA P N 240010329 Rev A 10 15 2013 9 Made in USA ...

Page 10: ...dronic NO NC Switch Valve Orientation Switch VOS Rating Plate Electrical Diagram Line Cord Fan Cycle Switch FCS High Pressure Switch HPS Control W Jumper MTR Valve Rating Plate Electrical Diagram Hydronic NO NC Switch Valve Orientation Switch VOS Fresh Air Switch FAS Thermostat Fan Speed Switch FSS System Switch SS Figure 7 R21C Chassis The Right Fit for Comfort 10 P N 240010329 Rev A 10 15 2013 ...

Page 11: ... Rating Plate Electrical Diagram Control W Jumper PRODUCT DESCRIPTION Figure 9 R22C R22H Chassis Figure 8 R23C R23H Chassis Line Cord Fan Cycle Switch FCS High Pressure Switch HPS Control W Jumper MTR Valve Rating Plate Electrical Diagram Fresh Air Switch FAS Thermostat Fan Speed Switch FSS System Switch SS P N 240010329 Rev A 10 15 2013 11 Made in USA ...

Page 12: ...trical Diagram Fresh Air Switch FAS Thermostat Fan Speed Switch FSS System Switch SS Line Cord Fan Cycle Switch FCS High Pressure Switch HPS Control W Jumper MTR Valve PRODUCT DESCRIPTION The Right Fit for Comfort 12 P N 240010329 Rev A 10 15 2013 ...

Page 13: ...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 Use of 1 stage or 2 stage thermostat 2 stage thermostat is capable of activating emergency heat if auxiliary heat source is available Low ambient protection see Microprocessor control board for details Ability to control a normally open o...

Page 14: ...l valve Water 2 way 3 way Hydronic control valve Steam 2 way Hydronic Isolation valve 1 2 in Sweat Connection Manufacturer Installed Options Consult manufacturer 265 277V 12 and 15 only 115V 09 12 Models Only Corrosion resistant coil option used for seacoast and harsh environment usage coated aluminum fin copper tube condenser coil Motorized fresh air damper Supplemental electric heat Hydronic hea...

Page 15: ...cal Code ANSI NFPA 70 Canada CSA C22 1 Canadian Electrical Code Part 1 UNITS RATED 208 230V RetroAire unit is wired for 230v primary voltage from manufacture Transformer must be rewired by installer if jobsite voltage is 208v Change transformer tap from orange to red See wiring diagram for details Protect with separate branch circuit protected by fuse or breaker Refer to unit rating plate for prop...

Page 16: ...ing holes of condenser coil using screws provided NOTICE Install correct condenser air baffles or performance may be impaired 4 Apply 2 x 1 1 2 open cell foam strips around supply air duct to ensure all conditioned air is delivered into room Figure 15 page 16 Failure to do so results in recirculation of conditioned air through cabinet causing unit to short cycle and coil to freeze 5 Apply 1 x 1 op...

Page 17: ...r coil and properly orientated slide unit into final position and tighten tie down bolts or screws as necessary 9 Hard wired units If unit is hard wired follow instructions on pages 40 44 to verify existing wiring and over current protection A Remove line cord wires from PTAC PTHP power entrance terminals B Route power supply wiring through strain relief bushing and connect leads to power entrance...

Page 18: ...les or performance may be impaired 4 Apply 1 2 x 1 2 open cell foam strips around supply air duct to ensure all conditioned air is delivered into room Figure 21 page 20 Failure to do so results in recirculation of conditioned air through cabinet causing unit to short cycle and coil to freeze 5 Apply 1 x 1 open cell foam strips to weather angle Prevents outside air from entering around chassis to r...

Page 19: ...tighten tie down bolts or screws as necessary 9 Hard wired units If unit is hard wired follow in structions on pages 40 44 to verify existing wiring and over current protection A Remove line cord wires from PTAC PTHP power entrance terminals B Route power supply wiring through strain relief bushing and connect leads to power entrance ter minals C Secure strain relief clamp If wiring is through con...

Page 20: ...1 4 hex screw from middle of unit B Install bracket using 1 4 hex screw 2 sides See Figures 25 27 5 Connecting optional hydronic coil controls If hydronic heat option has been ordered hydronic coils will need to be field installed on new unit A Hydronic coils are not factory installed and need to be ordered B Coil with old unit can be located in subbase under chassis in special attachment It is ne...

Page 21: ...als B Route power supply wiring through strain relief bushing and connect leads to power entrance ter minals C Secure strain relief clamp If wiring is through conduit insert conduit through control box knock out and secure in place D DO NOT turn on power until completing instruc tions in Final Inspection and Startup on page 31 9 Do Not Plug Line Cord In If In Used Condition Follow instructions in ...

Page 22: ...r baffles or performance may be impaired 4 Apply 1 2 x 1 2 open cell foam strips around supply air duct to ensure all conditioned air is delivered into room see Figure 31 page 24 Failure to do so results in recirculation of conditioned air through cabinet causing unit to short cycle and coil to freeze 5 Apply 1 2 x 1 2 x and 1 2 x 3 4 open cell foam strips Prevents outside air from entering around...

Page 23: ... seals are properly located correct baffles are attached to condenser coil and properly orientated slide unit into final position and tighten tie down bolts or screws as necessary 9 Hard wired units If unit is hard wired follow instructions on pages 40 44 to verify existing wiring and over current protection A Remove line cord wires from PTAC PTHP power entrance terminals B Route power supply wiri...

Page 24: ...nd right side baffles on condenser coil by completing following steps A Verify baffles come in contact with outdoor louver B Verify baffles are directed inward toward center of coil see Figure 35 page 26 C Secure baffles tightly into existing holes of condenser coil using screws provided NOTICE Install correct condenser air baffles or performance may be impaired 5 Apply 1 2 x 3 4 open cell foam st...

Page 25: ...Install control section A Remove front cover of unit B Unit mount installation take thermal bulb from control section and run capillary tube bulb along unit to blower section There will be no thermostat bulb if remote thermostat option is used C Look at sides of blower housing there are two clips supporting thermal bulb Remove screws holding clips and slide thermal bulb into clips Fasten clips bac...

Page 26: ...s of board Between blink sequence is separation of approximately 2 seconds Status Code is listed below Trouble Code Blinks Status 1 Normal Operation 2 Anti Short Cycle Timer Active 3 Outdoor Coil Freeze Protection 4 Indoor Coil Freeze Protection 5 Simultaneous Y and W Call Initial Power Up or Power Restoration When power is applied to unit either for first time or after power failure board will in...

Page 27: ...ir temperature is 60ºF 15 5 ºC or below or if outdoor temperature is below 40ºF 4 5ºC R_ _C R_ _ H Heating Operation 1 System Switch SS set to Heat and Fan Cycle Switch FCS set to On Continuous Fan Operation indoor fan motor starts 2 If Fan Cycle Switch FCS is set to Off Cycling Fan Operation indoor fan motor starts with call for heat from internal thermostat T stat 3 Unit equipped with optional M...

Page 28: ... is energized until room temperature satisfies thermostat 6 Once room temperature increases above set point by 3ºF 2ºC electric heaters de energize Hydronic Heat 1 FCS set to On Continuous Fan Operation and unit has Control indoor fan and fresh air motorized damper operation are controlled by Control 2 Control senses temperature of 80 5ºF 26 3ºC or below indoor fan will shut down and motorized dam...

Page 29: ...freely Verify all sheet metal panels are in place and secure Attach front panel to existing cabinet enclosure Verify nothing interferes with room discharge air or return air of units Examples Check for curtains or drapes that obstruct air flow See Figures 38 and 39 Check for plush carpeting that can obstruct return air Items like these can cause serious damage to chassis INSPECTION START UP Any ob...

Page 30: ...installed jumper pins on control board HP jumper and TEST jumper HP Jumper to select heat pump or straight cooling Pins determine whether unit operates as straight cooling or as heat pump see Figures 40 and 42 Jumper right pin to center pin for heat pump operation Jumper left pin to center pin for straight cooling operation TEST Jumper to select normal or test mode Jumper is for use in testing onl...

Page 31: ...ter is picked up by slinger ring and thrown onto outdoor coil NOTICE Compressor will not start until anti short time period has elapsed On power up there will be delays for control board initialization and random start timing See Sequence of Operation on page 28 Unit Mounted Thermostat 1 Use system switch to place PTAC PTHP in either COOL HEAT or OFF position see Figure 46 Test operation in all po...

Page 32: ...ic coil reaches 100 5 F 38 3 C Signal to water or steam valve will continue until room temperature rises above setpoint by 3 F 2 C INSPECTION START UP NOTICE DO NOT rotate thermostat knob back and forth from heating to cooling This causes compressor to cycle on and off rapidly and will cause damage to compressor Allow compressor to remain off for at least three minutes prior to restarting unit Rem...

Page 33: ...o a warmer temperature The cooling mode will cease and the compressor and outdoor fan will stop The indoor fan will switch off after the sixty second purge time has elapsed 6 Place thermostat or system switch in OFF position All operation stops NOTICE Room temperature must be above 85 F 29 C for compressor to operate in cooling mode on PTHP s with unit mounted controllers 7 Place system switch in ...

Page 34: ...ts emitting heat 3 After unit starts running and space warms adjust thermostat to cooler temperature until electric heater turns off 4 Warmer room temperature is desired adjust thermostat to warmer temperature setting which turns electric heater back on 5 Cooler room temperature is desired adjust thermostat to cooler temperature setting until electric heater turns off Indoor fan switches off after...

Page 35: ... hydronic option installed inspect piping braze joints for signs of water leaks Repair if necessary Clean exterior cabinet as desired with mild soap or household cleaner 5 kW heat models only in event limit switch opens and de energizes electric heat manually reset limit switch To manually reset limit switch Remove control box cover Locate limit switch Push reset button in See Figure 44 page 37 Fi...

Page 36: ... inlet for condenser and condenser coil discharge These areas must be sealed off from each other If you experience poor cooling operation or erratic operation check for air recirculation at condenser coil Replace access panels and reconnect electrical power Test unit operation Troubleshooting Sensors 1 See Figure 45 page 38 for location of sensor connections to control board 2 If temperature respo...

Page 37: ...tance measurements compare to following sensor resistances Indoor and outdoor coil sensor wires and control board are labelled Verify sensors are correctly wired 77 F 10KOhms 50 F 19 9KOhms 35 F 30KOhms 30 F 34 4KOhms Thermostat is satisfied fan is still running Thermostat set to Auto mode once thermostat is satisfied fan stays energized for extra 60 seconds to purge unit of excess cool or warm ai...

Page 38: ... 7 13 2 15 7 20P 3 265 3983 15 15 7 19 5 20 4 265 5310 20 20 7 25 7 30 7 30P 5 N A N A N A N A N A N A N A Power Supply Volt 1 60 Compressor Indoor Fan Motor Outdoor Fan Motor Electric Heat Unit Electrical Ratings 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 25 0 125 0 N A N A...

Page 39: ... 265 5310 20 20 7 25 7 30 7 30P 5 N A N A N A N A N A N A N A Table 8 R11 R21 R22 R23 R24 Cooling Capacity 18 Electrical Specifications Power Supply Volt 1 60 Compressor Indoor Fan Motor Outdoor Fan Motor Electric Heat Unit Electrical Ratings Volt Min RLA LRA FLA Hp FLA Hp Htr Volt W HA TCA THA MCA MOCP Plug 208 230V 197 8 3 44 0 6 0 08 0 71 0 09 0 N A N A N A 9 6 N A 11 7 15 6 15P 2 208 1636 7 9 ...

Page 40: ...ELECTRICAL SPECIFICATIONS Table 9 Electrical Plug Rating The Right Fit for Comfort 40 P N 240010329 Rev A 10 15 2013 ...

Page 41: ... 2 0 7 6 180 82 17 700 5 2 1 8 0 5 162 72 18 10 450 12 7 2 0 7 6 140 60 11 700 3 4 1 9 0 6 128 53 12 7 400 11 3 2 0 7 6 140 60 11 100 3 3 1 9 0 6 129 54 11 6 450 12 7 1 0 3 8 180 82 15 800 4 6 0 5 0 2 148 64 32 18 400 11 3 1 0 3 8 180 82 15 100 4 4 0 5 0 2 149 65 31 17 450 12 7 1 0 3 8 140 60 9 800 2 9 0 6 0 2 120 49 20 11 400 11 3 1 0 3 8 140 60 9 400 2 8 0 6 0 2 121 49 19 11 Pressure Drop Water ...

Page 42: ...NOTES The Right Fit for Comfort 42 P N 240010329 Rev A 10 15 2013 ...

Page 43: ......

Page 44: ...ECR International Inc 2201 Dwyer Avenue Utica NY 13501 e mail info RetroAire com An ISO 9001 2008 Certified Company Warranty ...

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