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Installation, Operation and Maintenance Manual

CA Model

8733942456 (2016/04)

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Summary of Contents for CA

Page 1: ...Installation Operation and Maintenance Manual CA Model 8733942456 2016 04 ...

Page 2: ...d Water Loop Applications 10 Water Quality 11 Water Quality Table 12 UPM Sequence of Operation 13 Sequence of Operation 14 Cooling Mode 14 Heating Mode 14 Cooling Tower Boiler Systems 14 Geothermal Earth Coupled Systems 14 System Checkout 14 Unit Start up 15 Troubleshooting 15 Blower Performance Data 17 PSC Motor Electrical Data Table PSC Blower Motor 18 Water Side Pressure Drop 18 OperatingTemper...

Page 3: ...Right Hand Water M DDC Multi Protocol BacNET Modbus N2 L DDC LonWorks Coax Options C Copper Transformer N Cupro Nickel 4 40 VA 7 75 VA Cabinet Width 48 48 Refrigeration Circuit Options 63 63 X None XX N A S Straight Cool Supply Air Configuration General Electrical Options up to 5 available per unit 0 N A A EMS relay B Blower Monitor Relay Fan Motor Options C Compressor Monitor Relay P Standard PSC...

Page 4: ... the equipment DANGER Before performing service or maintenance operations on the system turn off main power to the unit On units with mounted controls the On Off switch DOES NOT disconnect the unit from main power High voltage components or moving parts will cause injury or death CAUTION When working on equipment always observe precautions described in the literature tags and labels attached to th...

Page 5: ...stored or moved in the normal upright position as indicated by the UP arrows on each carton at all times LOCATION Locate the unit in an indoor area that allows easy removal of the filter and access panels and has enough room for service personnel to perform maintenance or repair Provide sufficient room to make fluid electrical connection s If the unit is located in a confined space provisions must...

Page 6: ...rmit proper flow balancing and unit servicing Strainers at the inlet of each circulating pump Use of teflon tape on threaded pipe fittings to eliminate water leaks and ensure against air entering the system Flexible hose connections between the unit and the rigid system to eliminate the possibility of vibration transmission through the piping Insulation is not normally required on supply and retur...

Page 7: ...umber of units that can be connected together in this manner as each unit provides it s own low voltage power supply Safety Devices and the UPM Controller Figure 3 1 Board Power Indicator 2 UPM Status LED Indicator 3 Water Coil Freeze Protection Temperature Selection R30 4 Air Coil Freeze Protection Temperature Selection 5 UPM Board Settings 6 Water Coil Freeze Connection Freeze 1 7 Air Coil Freez...

Page 8: ...be energized until the low pressure switch closes and the anti short cycle time delay expires If the low pressure switch opens 2 4 times in 1 hour the unit will enter a hard lockout In order to exit hard lockout power to the unit would need to be reset BROWNOUT SURGE POWER INTERRUPTION PROTECTION The brownout protection in the UPM board will shut down the compressor if the incoming power falls bel...

Page 9: ... protection In addition the following features are present Tactile touch pad for temperature fan and mode adjustment Digital display of temperature in either degrees Fahrenheit or Celsius LED Display provides indication for unit operating mode as well as fan speed and fault indication for high or low pressure lockout Adjustable Temperature Set point from 60 F through 80 F 15 5 C through 26 7 C Adj...

Page 10: ...ly both domestic water and the heat pump care must be taken to ensure that the well can provide sufficient flow for both Solenoid valves should be connected across Y and C on the Terminal block Make sure that the VA draw of the valve does not exceed the contact rating of the thermostat Low Temperature Loop Application In applications where fluid temperatures may fall below 40 F in a ground water o...

Page 11: ...r scaling due to a buildup of carbonates on the heat exchanger wall can gradually degrade the heat pump performance over time Heat pumps that are affected by scaling may exhibit low suction pressures in heating and high head pressures in cooling with a gradual loss of capacity and efficiency Scaled heat exchangers can be cleaned by a qualified technician but care should be taken to avoid scaling i...

Page 12: ...Hydrogen Sulfide H2S 0 5 ppm 10 50 ppm Sulfates 125 ppm 125 ppm Chlorine 0 5 ppm 0 5 ppm Chlorides 20 ppm 150 ppm Carbon Dioxide 50 ppm 50 ppm Ammonia 2 ppm 2 ppm Ammonia Chloride 0 5 ppm 0 5 ppm Ammonia Nitrate 0 5 ppm 0 5 ppm Ammonia Hydroxide 0 5 ppm 0 5 ppm Ammonia Sulfate 0 5 ppm 0 5 ppm Dissolved Solids 1 000 ppm 1 500 ppm IRON FOULING Iron Fe2 Iron Bacteria Potential 0 2 ppm 0 2 ppm Iron Ox...

Page 13: ...OWER SWITCHES SENSOR STATUS CHECK START TIMER NO YES NO YES NO YES T ASC OR RS SEC YES NO NO YES START ANTI SHORT CYCLE INITIAL POWER UP YES NO START RANDOM START UP START COUNTER NEEDED YES COUNT 2 OR COUNT 4 BLINK CODE ON STATUS LED DISPLAY OUTPUT PULSE ALR OUTPUT ON PULSE NO YES HARD LOCKOUT CC OUTPUT OFF V 18VAC NO YES YES NO BLINK CODE ON STATUS LED NO RESET ON Y CLEAR FAULTS R 24VAC NO YES N...

Page 14: ...vs pressure drop information Supply and return hoses should be connected together during this process to ensure the entire system is properly flushed After the cleaning and flushing has taken place the unit may be connected to the water loop and should have all valves wide open Geothermal Earth Coupled Systems Closed loop and pond applications require specialized design knowledge No attempt at the...

Page 15: ...mp is operating in the cooling mode 5 Turn the thermostat system switch to the OFF position The unit should stop running and the reversing valve should de energize 6 Leave the unit off for approximately 5 minutes to allow for system equalization 7 Turn the thermostat to the lowest setting 8 Set the thermostat switch to HEAT 9 Increase the thermostat setting approximately 5 degrees above the room t...

Page 16: ...ult L E D for Blink Code Compressor overload open If the compressor is cool and the overload will not reset replace compressor Compressor motor grounded Internal winding grounded to the compressor shell Replace compressor If compressor burnout install suction filter dryer Compressor windings Open After compressor has cooled check continuity of the compressor windings If the windings are open repla...

Page 17: ...nt charge causing inefficient operation Compressor Check for defective compressor If discharge is too low and suction pressure is too high compressor is not pumping properly Replace compressor Reversing Valve Defective reversing valve creating bypass of refrigerant from discharge of suction side of compressor Replace reversing valve Operating pressures Compare unit operation pressures to the press...

Page 18: ...2 30 20 370 2 265 277 1 60 239 291 1 3 8 22 2 0 8 5 6 15 8 70 3 47 15 440 015 0 115 1 60 104 126 1 12 7 63 0 1 3 17 2 25 N A N A 40 370 1 208 230 1 60 197 253 1 5 6 29 0 0 8 7 8 15 5 45 2 31 25 440 2 265 277 1 60 239 291 1 4 6 20 0 0 8 6 6 15 7 39 3 58 15 440 018 1 208 230 1 60 197 253 1 7 4 33 0 0 8 10 1 15 3 05 2 41 35 370 2 265 277 1 60 239 291 1 6 0 28 0 0 8 8 3 15 2 57 3 26 35 440 These value...

Page 19: ...0 2 140 145 290 300 12 5 13 9 20 0 22 2 115 120 315 320 6 3 6 9 19 5 21 5 3 135 140 270 280 10 3 11 3 20 2 22 4 120 125 320 325 5 1 5 7 19 9 21 9 60 2 142 147 320 320 12 4 13 7 19 4 21 4 125 130 325 330 7 0 7 8 21 5 23 7 3 137 142 300 310 10 2 11 2 19 7 21 7 130 135 330 335 5 8 6 4 21 9 24 2 70 2 145 150 335 345 12 3 13 5 18 9 20 9 145 150 335 240 7 9 8 7 23 5 25 9 3 143 152 325 335 10 1 11 1 19 1...

Page 20: ... MOTORS UNIT HI LO CAPPED CAPPED 009 BLU RED BLK ORG 012 ORG BLU BLK RED 015 BLK BLU ORG RED 018 BLK ORG BLU RED FAN MOTOR SPEED TABS 3 POLE MOTORS UNIT HI LO CAPPED 009 BLU RED BLK 012 BLU RED BLK 015 BLU RED BLK 018 BLK RED BLU FOR REFERENCE ONLY Actual unit wiring may vary from this example Always refer to the wiring diagram attached to the unit ...

Page 21: ...LT 6 EVAPORATOR FREEZE CONDITION FAN MOTOR SPEED TABS 4 POLE MOTORS UNIT HI LO CAPPED CAPPED 009 BLU RED BLK ORG 012 ORG BLU BLK RED 015 BLK BLU ORG RED 018 BLK ORG BLU RED FAN MOTOR SPEED TABS 3 POLE MOTORS UNIT HI LO CAPPED 009 BLU RED BLK 012 BLU RED BLK 015 BLU RED BLK 018 BLK RED BLU FOR REFERENCE ONLY Actual unit wiring may vary from this example Always refer to the wiring diagram attached t...

Page 22: ...22 Schematic CA Model CA Model 8733942456 2016 04 Subject to change without prior notice SCHEMATIC WATER COIL FREEZE SENSOR CVC AIR COIL FREEZE SENSOR UPM WATER COIL FREEZE SENSOR UPM ...

Page 23: ...75 2 87 12 87 12 00 1 63 13 50 5 00 1 75 13 75 1 00 CA012 48 00 12 00 23 88 6 00 45 00 6 12 3 37 11 00 12 87 30 75 2 87 12 87 12 00 1 63 13 50 5 00 1 75 13 75 1 00 CA015 48 00 12 00 23 88 6 00 45 00 6 12 3 37 11 00 12 87 30 75 2 87 12 87 12 00 1 63 13 50 5 00 1 75 13 75 1 00 CA018 48 00 12 00 23 88 6 00 45 00 6 12 3 37 11 00 12 87 30 75 2 87 12 87 12 00 1 63 13 50 5 00 1 75 13 75 1 00 Model V W X ...

Page 24: ...3 00 12 00 23 88 6 00 45 00 6 12 3 37 11 00 30 87 30 75 2 87 12 87 12 00 1 63 13 50 5 00 1 75 CA015 63 00 12 00 23 88 6 00 45 00 6 12 3 37 11 00 30 87 30 75 2 87 12 87 12 00 1 63 13 50 5 00 1 75 CA018 63 00 12 00 23 88 6 00 45 00 6 12 3 37 11 00 30 87 30 75 2 87 12 87 12 00 1 63 13 50 5 00 1 75 Model T U V W X Y Z Water Connection Height from Sub base Water Out Depth from Rear Water In Depth from ...

Page 25: ...____ _____________ _______________ _____________ Fluid Flow gpm ______________________________ ______________________________ Compressor Volts Amps _______________ _____________ _______________ _____________ Blower Motor Volts Amps _______________ _____________ _______________ _____________ Source Fluid Type ______________________________ ______________________________ Fluid Flow gpm _____________...

Page 26: ...ure problems air flow problems or air temperature problems Use of the pressure and temperature charts for the unit may be required to properly determine the cause INFORMATION ON DECOMMISSIONING Only Trained and qualified technicians are allowed to decommission and dispose of equipment following applicable requirements and local codes Protecting the Environment Components Many parts in the Heat Pum...

Page 27: ...maintenance or servicing or prior to the disposal of the products or equipment Recycling Means the reuse of a recovered fluorinated greenhouse gas following a basic cleaning process Reclamation Means the reprocessing of a recovered fluorinated greenhouse gas in order to match the equivalent performance of a virgin substance taking into account its intended use Decommissioning Means the final shut ...

Page 28: ...Bosch Thermotechnology Corp 555 NW 65th Court Ft Lauderdale FL 33309 Phone 954 776 5471 Fax 954 776 5529 www bosch climate us Revised 04 2016 ...

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