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Carrier 50PEC09-18 Aquazone, Инструкция по установке, запуску и обслуживанию

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Содержание 50PEC09-18 Aquazone

Страница 1: ...r Motors 46 Compressor 46 Safety Control Reset 46 Checking System Charge 47 Refrigerant Charging 47 Air Coil Fan Motor Removal 47 Replacing the WSHP Open Controller s Battery 47 TROUBLESHOOTING 47 49 Thermistor 47 WSHP Open Controller 47 APPENDIX A WSHP OPEN SCREEN CONFIGURATION 50 55 START UP CHECKLIST CL 1 CL 2 SAFETY CONSIDERATIONS Installation and servicing of air conditioning equipment can be...

Страница 2: ...ents parts and acces sories which make up the installation shall be in accordance with the regulations of ALL authorities having jurisdiction and MUST conform to all applicable codes It is the respon sibility of the installing contractor to determine and comply with ALL applicable codes and regulations CAUTION To avoid equipment damage do not use these units as a source of heating or cooling durin...

Страница 3: ...R WATE R OPT I AUT O VAL V WATER C 5 8 15 OD CO P 1 2 IPT 1 2 EP OPTIONAL FLOW REGULATOR OPTIONAL MOTORIZED WATER VALVE 1 75 44 OUT IN WATER CONNECTIONS 5 8 15 9 OD COPPER 1 2 IPT OR 1 2 EPT 8 00 MIN 203 11 25 286 1 62 41 2 00 51 2 25 57 Right Hand Configuration a50 8335 WATER IN WATER OUT 2 72 96 CONDENSATE oNAL IZED aLVE AL oW vE oNNECTIONS AA eR or 2 25 57 IN OUT 11 25 286 2 00 51 1 50 38 2 25 ...

Страница 4: ...ONTROL BOX 8 00 MIN 203 1 75 44 1 50 38 1 84 47 CONDENSATE 5 8 15 9 ID VINYL HOSE OPTIONAL AUTO FLOW VALVE OPTIONAL MOTORIZED WATER VALVE 1 75 44 OUT IN WATER CONNECTIONS 7 8 22 2 OD COPPER 3 4 IPT OR 3 4 EPT 11 12 282 2 12 54 a50 8337 BLOWER DECK BLOWER ACCESS PANEL NS OPTIONAL MOTORIZED WATER VALVE OPTIONAL AUTOFLOW VALVE WATER IN 2 72 96 CONDENSATE 2 25 286 IN OUT 5 8 15 9 ID VINYL HOSE 11 12 2...

Страница 5: ...PER OPENING 48 0 1219 1 63 41 11 75 298 9 81 249 0 59 15 21 0 533 4 9 125 REAR VIEW AIR INLET DISCHARGE AIR 1 75 44 3 00 76 2 12 54 R H PIPE AND ELECTRIC AREA NOTE 2 1 0 25 1 0 25 4 5 114 20 0 508 12 0 305 10 0 254 BOTTOM VIEW 5 0 127 16 0 406 FRONT VIEW CONTROL ACCESS DOOR AIR INLET AREA 48 0 1219 33 5 851 1 75 44 5 48 0 1219 3 53 90 SIDE VIEW REAR ACCESS Filter located inside and at top of air i...

Страница 6: ... 89 25 90 658 DAMPER OPENING 54 00 1372 1 63 41 11 75 298 9 81 249 0 59 15 21 00 533 4 90 125 REAR VIEW AIR INLET DISCHARGE AIR 1 75 44 3 00 76 0 75 19 R H PIPE AND ELECTRIC AREA NOTE 2 1 00 25 1 00 25 4 50 114 20 00 508 12 00 305 10 00 254 BOTTOM VIEW 5 00 127 16 00 406 FRONT VIEW CONTROL ACCESS DOOR AIR INLET AREA 54 00 1372 39 50 1003 1 75 44 5 54 00 1372 3 53 90 SIDE VIEW RH REAR ACCESS NOTE 2...

Страница 7: ... 9 658 DAMPER OPENING 48 0 1219 1 63 41 11 75 298 9 9 251 0 59 15 21 0 533 4 9 125 REAR VIEW AIR INLET DISCHARGE AIR 12 0 305 BOTTOM VIEW 12 6 320 FRONT VIEW CONTROL ACCESS DOOR AIR INLET AREA 48 0 1219 33 5 851 1 75 44 5 48 0 1219 1 5 38 3 53 90 1 75 44 3 00 76 0 75 19 L H PIPE AND ELECTRIC AREA NOTE 2 10 0 254 REAR ACCESS NOTE 2 1 25 1 25 4 5 114 20 0 508 SIDE VIEW Filter located inside and at t...

Страница 8: ...ENING 54 00 1372 1 63 41 11 75 298 9 90 251 0 59 15 21 00 533 4 90 125 REAR VIEW AIR INLET DISCHARGE AIR BOTTOM VIEW 12 60 320 FRONT VIEW CONTROL ACCESS DOOR AIR INLET AREA 54 00 1372 39 50 1003 1 75 44 5 54 00 1372 1 50 38 3 53 90 1 75 44 3 00 76 0 75 19 L H PIPE AND ELECTRIC AREA Note 2 10 00 254 REAR ACCESS Note 2 1 00 25 1 00 25 4 50 114 20 00 508 SIDE VIEW 12 00 305 Filter located inside and ...

Страница 9: ...ized water valve and disconnect box are shown 48 0 30 3 5 89 21 0 533 21 0 533 REAR VIEW DISCHARGE AIR REAR ACCESS 1 0 25 1 0 25 4 5 114 20 0 508 12 0 305 5 0 127 16 0 406 FRONT VIEW CONTROL ACCESS DOOR 48 0 1219 43 7 1110 7 9 201 21 0 533 R H PIPE AND ELECTRIC AREA 1219 12 0 305 BOTTOM VIEW 48 0 1219 SIDE VIEW AIR INLET Filter located behind return air grille and requires removal of cabinet front...

Страница 10: ...alve and disconnect box are shown 54 00 30 3 50 89 21 00 533 21 00 533 REAR VIEW DISCHARGE AIR RH REAR ACCESS NOTE 2 1 00 25 1 00 25 4 12 105 20 00 508 12 00 305 5 00 127 16 00 406 FRONT VIEW CONTROL ACCESS DOOR 54 00 1372 48 00 1219 7 90 201 21 00 533 R H PIPE AND ELECTRIC AREA NOTE 2 1372 12 00 305 BOTTOM VIEW 54 00 1372 SIDE VIEW AIR INLET Filter located behind return air grille and requires re...

Страница 11: ...C09 15 Front Return Cabinet Dimensions Left Hand Piping NOTES 1 Dimensions are shown in inches Dimensions in parentheses are in millimeters 2 Access is reduced if optional disconnect box is selected 3 Optional autoflow valve motorized water valve and disconnect box are shown ...

Страница 12: ...ater valve and disconnect box are shown 54 00 30 3 50 89 21 00 533 21 00 533 REAR VIEW DISCHARGE AIR REAR ACCESS Note 2 114 12 00 305 1 50 38 1 12 60 320 FRONT VIEW CONTROL ACCESS DOOR 54 00 1372 48 00 1219 7 90 201 21 00 533 1372 11 50 292 BOTTOM VIEW 54 00 1372 4 50 1 00 25 20 00 508 L H PIPE AND ELECTRIC Note 2 AREA SIDE VIEW AIR INLET Filter located behind return air grille and requires remova...

Страница 13: ...sis Optional Motorized Water Valve Optional Autoflow Valve 3 56 90 7 50 191 3 42 87 3 56 90 Optional Fused Disconnect Box mounted to cabinet not chassis Power supply enters Bottom of Box Optional Disconnect Only Box All Configurations Power supply enters Bottom of Box 4 46 113 4 56 116 Power supply enters Bottom of Box Left Hand Configuration Right Hand Configuration a50 8347 If optional subbase i...

Страница 14: ...87 22 11 54 293 3 42 87 16 66 423 30 3 01 76 5 36 136 0 75 19 0 75 19 4 46 113 20 50 521 40 98 1040 3 01 76 5 36 136 Optional Motorized Water Valve Optional Autoflow Valve Optional Fused Disconnect Box mounted to cabinet not chassis Optional Motorized Water Valve Optional Autoflow Valve 3 56 90 7 50 191 3 42 87 3 56 90 Optional Fused Disconnect Box mounted to cabinet not chassis Power supply enter...

Страница 15: ...ate 5 8 ID V 15 8mm inyl Hose Optional Motorized Water Valve Optional Autoflow Valve Optional Disconnect Box mounted to cabinet not chassis Optional Motorized Water Valve Optional Autoflow Valve 7 5 191 0 87 22 11 54 293 3 43 87 16 66 423 30 3 01 76 136 3 56 90 11 54 293 16 66 423 30 0 87 22 3 01 76 5 36 136 Condensate 5 8 ID Vinyl Hose 7 50 191 3 42 87 3 56 90 Optional Motorized Water Valve Optio...

Страница 16: ... Autoflow Valve Optional Disconnect Box mounted to cabinet not chassis Optional Motorized Water Valve Optional Autoflow Valve 7 5 191 0 87 22 11 54 293 3 43 87 16 66 423 30 3 01 76 3 56 90 11 54 293 16 66 423 30 0 87 22 3 01 76 5 36 136 7 50 191 3 42 87 3 56 90 Optional Motorized Water Valve Optional Autoflow Valve Optional Disconnect Only Box All Configurations Power supply enters Bottom of Box 4...

Страница 17: ...l codes In addition all field wiring must conform to the Class II temperature limitations described in the NEC Consult the unit wiring diagram located on the inside of the compressor access panel to ensure proper electrical hookup The installing or electrical contractor must make the field connec tions shown in Fig 16 when using field supplied disconnect Refer to unit wiring diagrams Fig 17 29 for...

Страница 18: ...l box Ground available from top two standoffs as shown 8 Mate N Lok plug is optional 9 Factory cut jumper JW1 Dry contact will be available between AL1 and AL2 AL Alarm Relay Contacts BM Blower Motor BR Blower Relay CAP Capacitor CB Circuit Breaker CO Sensor Condensate Overflow CR Compressor Relay DM Damper Motor FP1 Sensor Water Coil Freeze Protection FP2 Sensor Air Coil Freeze Protection HP High...

Страница 19: ...ondary ground via Complete C board standoffs and screws to control box Ground available from top 2 standoffs as shown AL Alarm Relay Contacts BM Blower Motor BR Blower Relay CAP Capacitor CB Circuit Breaker CO Sensor Condensate Overflow CR Compressor Relay DM Damper Motor FP1 Sensor Water Coil Freeze Protection FP2 Sensor Air Coil Freeze Protection FSS Fan Speed Switch HP High Pressure Switch JW1 ...

Страница 20: ...ro tected internally 2 All wiring to the unit must comply with local codes 3 Transformer is wired to 115 V WHT lead for 115 1 60 units 265 V BRN lead for 265 1 60 units 240 V ORG lead for 240 1 50 units or 208 V RED lead for 208 1 60 units Rewire transformer L1 connection if voltage is 230 1 60 or 220 1 50 insulate unused lead 4 FP1 thermistor provides freeze protection for WATER When using ANTI F...

Страница 21: ...ermally pro tected internally 2 All wiring to the unit must comply with local codes 3 Transformer is wired to 115 V WHT lead for 115 1 60 units 265 V BRN lead for 265 1 60 units 240 V ORG lead for 240 1 50 units or 208 V RED lead for 208 1 60 units Rewire transformer L1 connection if voltage is 230 1 60 or 220 1 50 insulate unused lead 4 FP1 thermistor provides freeze protection for WATER When usi...

Страница 22: ... Capacitor CB Circuit Breaker CO Sensor Condensate Overflow CR Compressor Relay DM Damper Motor FP1 Sensor Water Coil Freeze Protection FP2 Sensor Air Coil Freeze Protection FSS Fan Speed Switch HP High Pressure Switch JW1 Jumper Wire for Alarm LOC Loss of Charge Pressure Switch PB Power Terminal Block PM Performance Monitor RVS Reversing Valve Solenoid TRANS Transformer WV Water Valve Field Line ...

Страница 23: ... 3 4 5 6 7 8 ACC1 RELAY ACC2 RELAY BLU S1 DIP SWITCH PACKAGE PM DISABLE ENABLE UNIT STAGE 2 1 T STAT HEAT COOL HEAT PUMP RV ON B RV ON O DEHUMID NORMAL NOT USED BOILERLESS ENABLE DISABLE BOILERLESS 40 F 50 F 1 2 3 4 5 6 7 8 OFF ON S2 DIP SWITCH PACKAGE ACC1 FUNCTIONS ACC2 FUNCTIONS H HI FAN DEHUMID NOT USED 1 2 3 4 5 6 7 8 OFF ON BLK ORG 230V 24V TRANS CB POWER SUPPLY REFER TO DATA PLATE USE COPPE...

Страница 24: ...L W T LEGEND NOTE Reversing valve is on in Cooling mode CR Control Relay LWT Leaving Water Temperature Sensor SAT Supply Air Temperature Sensor SPT Space Temperature Sensor LEGEND NOTE Reversing valve is on in Cooling mode LWT Leaving Water Temperature Sensor SAT Supply Air Temperature Sensor SPT Space Temperature Sensor Fig 23 PremierLink Controller Applications with Complete C Control Fig 24 Pre...

Страница 25: ...ol Controls WHSP OPEN A50 8355 LEGEND BM Blower Motor BR Blower Relay CO Condensate Overflow LWT Leaving Water Temperature N C Normally Closed OAD Outside Air Damper OCC Occupancy Input Contact RH Relative Humidity SAT Supply Air Temperature SPT Space Temperature ...

Страница 26: ...n Multiple Protocol Controls A50 8354 LEGEND BM Blower Motor CO Condensate Overflow LWT Leaving Water Temperature N C Normally Closed OAD Outside Air Damper OCC Occupancy Input Contact RH Relative Humidity SAT Supply Air Temperature SPT Space Temperature ...

Страница 27: ...nd WSHP Open Multiple Protocol Controls A50 8356 LEGEND CO Condensate Overflow LWT Leaving Water Temperature N C Normally Closed OAD Outside Air Damper OCC Occupancy Input Contact RH Relative Humidity SAT Supply Air Temperature SPT Space Temperature ...

Страница 28: ...d WSHP Open Multiple Protocol Controls A50 8353 LEGEND CO Condensate Overflow LWT Leaving Water Temperature N C Normally Closed OAD Outside Air Damper OCC Occupancy Input Contact RH Relative Humidity SAT Supply Air Temperature SPT Space Temperature ...

Страница 29: ...e Switch N A BI Dry Contacts J1 2 Binary Input 3 Stage 1 Compressor Status N A BI Dry Contacts J1 10 Binary Input 5 Leaving Condenser Water Temperature 10K Type II AI 10K Thermistor J2 1 and 2 Analog Input 6 Supply Air Temperature 33ZCSENSAT AI 10K Thermistor J2 3 and 4 Analog Input 7 Outputs Modulating Valve Auxiliary Heat Water Economizer N A AO 0 10Vdc 2 10Vdc J2 4 and 5 Analog Output 1 Outside...

Страница 30: ...rgized only on valves with end switches Only relay or triac based electronic thermostats should be used with slow closing valves When wired as shown the slow closing valve will operate properly with the following notations 1 The valve will remain open during a unit lockout 2 The valve will draw approximately 25 to 35 VA through the Y signal of the thermostat 50PEC UNIT SIZE VOLTAGE CODE V PH Hz MI...

Страница 31: ...nect the connectors to the board Field Supplied Sensor Hardware The WSHP Open con troller is configurable with the following field supplied sen sors See Table 4 Table 4 Field Supplied Sensors for WSHP Open Controller NOTE BACview6 Handheld or Virtual BACview can be used as the user interface For specific details about sensors refer to the literature sup plied with the sensor Wiring a SPT Sensor A ...

Страница 32: ...2 sensor on the same zone controller if both sensors are powered off the board If sensors are externally powered both sensors may be used on the same zone controller If the cable used to wire the RH sensor to the controller will be less than 100 ft an unshielded 22 AWG American Wire Gage cable should be used If the cable will be greater than 100 ft a shield 22 AWG cable should be used The cable sh...

Страница 33: ...ly hose directly to the return riser valve Use a single length of flexible hose as shown in Fig 35 NOTE If the length of hose is too short i e the resulting con nection would exceed the minimum bend radius of the hose substitute two lengths of flexible hose joined together with a field supplied standard NPT coupling and the flare fitting to pipe adapters provided with the hose kit Fig 35 3 Open al...

Страница 34: ...emperature set points and operation 5 Balanced Water Flow Rate to Heat Pump Record the inlet and outlet water temperatures as each heat pump unit is started This check will eliminate nuisance unit tripouts resulting from water velocities that are either too low or too high it can also prevent erosive water flow rates 6 Standby Pump Verify the standby pump is properly in stalled and in operating co...

Страница 35: ...direct HX use A monitoring plan should be implemented Ryznar Stability Index All N A 6 0 7 5 If 7 5 minimize steel pipe use Langelier Saturation Index All N A 0 5 to 0 5 If 0 5 minimize steel pipe use Based upon 150 F HWG and direct well 85 F indirect well HX Iron Fouling Iron Fe2 Ferrous Bacterial Iron Potential All N A 0 2 ppm Ferrous If Fe2 ferrous 0 2 ppm with pH 6 8 O2 5 ppm check for iron ba...

Страница 36: ...ntrols or in master slave applications In master slave applications each compressor and fan will stage according to its switch 2 setting If switch is set to Stage 2 the compressor will have a 3 second delay before energizing during stage 2 demand NOTE If DIP switch is set for Stage 2 the alarm relay will not cycle during Test mode Heating Cooling Thermostat Type Switch 3 provides selec tion of the...

Страница 37: ...rn thermostat toward warmer position Both fan and compressor should shut off when thermostat set point equals room temperature Room temperature must be below 90 F for unit to shut off 6 Operate each heat pump in the heating cycle immediately after checking cooling cycle operation A time delay will prevent the compressor from re starting for approximate ly 5 minutes Operating Limits ENVIRONMENT Thi...

Страница 38: ...push the OK softkey The Logout will then be displayed to indicate the password was accepted 4 To set the Clock if it is not already displayed a Select System Settings from the Home screen then press Clockset b Scroll to hour minute and second using the arrow keys Use the number keypad to set actual time c Scroll to day month and year using arrow keys Use number keypad to set date 5 To set Daylight...

Страница 39: ...ering loop temperature For example if the lowest expected entering loop temperature is 30 F the leaving loop temperature would be 22 to 25 F Therefore the freeze pro tection should be at 15 F 30 F 15 F 15 F Calculate the total volume of fluid in the piping system See Table 13 Use the percentage by volume in Table 14 to deter mine the amount of antifreeze to use Antifreeze concentration should be c...

Страница 40: ...speed will immediately turn on NOTE DIP switch 5 on S1 does not have an effect upon Fan 1 and Fan 2 outputs HEATING STAGE 1 In Heating Stage 1 mode the fan en able and compressor relays are turned on immediately Once the demand is removed the relays are turned off and the con trol reverts to Standby mode If there is a master slave or dual compressor application all compressor relays and related fu...

Страница 41: ...g on the user configuration selected Fan mode can be selected as Auto Continuous or Always On In Auto mode the fan is in intermittent operation during both occupied and unoccupied periods Continuous fan mode is intermittent during unoccupied periods and continuous dur ing occupied periods Always On mode operates the fan con tinuously during both occupied and unoccupied periods In the default mode ...

Страница 42: ...ovides a status input to moni tor the compressor operation The status is monitored to deter mine if the compressor status matches the commanded state This input is used to determine if a refrigerant safety switch or other safety device has tripped and caused the compressor to stop operating normally If this should occur an alarm will be generated to indicate the faulted compressor condition Also i...

Страница 43: ...ntering air side of the unit Cooling The purpose is to provide a cooling economizer function directly from the condenser water loop when the en tering water loop temperature is suitable at least 5 F below space temperature If the optional coil is provided and the wa ter loop conditions are suitable then the valve will open to pro vide cooling to the space when required Should the capacity be insuf...

Страница 44: ...d The fault LED will always flash a code representing the last fault in memory If there is no fault in memory the fault LED will flash code 1 and appear as 1 fast flash alternating with a 10 second pause See Table 17 Table 15 Complete C Control Current LED Status and Alarm Relay Operations LEGEND NOTES 1 Slow flash is 1 flash every 2 seconds 2 Fast flash is 2 flashes every 1 second 3 EXAMPLE Flash...

Страница 45: ...re condenser tubes should be cleaned at least once a year or more often if the water is contaminated Use standard coil cleaning procedures which are compatible with both the heat exchanger material and copper water lines Generally the more water flowing through the unit the less chance for scaling however flow rates over 3 gpm per ton can DESCRIPTION STATUS LED Green TEST LED Yellow FAULT LED Red ...

Страница 46: ... eventu al motor failure Conduct annual dry operation check and am perage check to ensure amp draw is no more than 10 greater than that indicated by serial plate data Compressor Conduct an amperage check annually on the compressor and fan motor Amperage draw should not exceed normal full load amps Maintain a log of amperage to detect deterioration prior to component failure Safety Control Reset Th...

Страница 47: ...ention during power outages NOTE Power must be ON to the WSHP Open controller when replacing the battery or the date time and trend data will be lost 1 Remove the battery from the controller making note of the battery s polarity 2 Insert the new battery matching the battery s polarity with the polarity indicated on the WSHP Open controller TROUBLESHOOTING When troubleshooting problems with a WSHP ...

Страница 48: ...or replace Check fan motor operation and airflow restrictions High external static Check duct design and downstream interference X Air temperature out of range Too much cold vent air Bring entering air temperature within design parameters X Improper freeze protect set ting 10 F vs 30 F Normal airside applications will require 30 F only X X Bad thermistor Check temperature and impedance correlation...

Страница 49: ...ensible cooling load and heat pump capacity X X Scaling in water heat exchanger Perform scaling check and clean if necessary X X Inlet water too hot or cold Check load loop sizing loop backfill ground moisture High Head Pressure X Reduced or no airflow in heating Check for dirty air filter and clean or replace Check fan motor operation and airflow restrictions High external static Check duct desig...

Страница 50: ...plays the SPT alarm limit that was exceeded causing the alarm condition when SPT alarm above is in Alarm SPT Sensor Alarm Status Normal Alarm Displays the status of the Rnet SPT sensor ALARM is displayed should the sensor fail to communicate with the control module IAQ Alarm Status Normal Alarm Current IAQ ventilation condition Compressor Alarm Status Normal Alarm Current compressor condition SAT ...

Страница 51: ...ation damper position calculated by the DCV control Active Compressor Stages 0 1 2 Displays the actual number of compressor stages operating SAT F Displays SAT Reset Filter Alarm X No Yes Used to reset the filter alarm timer after the filter has been cleaned or replaced Overflow Contact Closed Open Displays the state of the condensate overflow switch contact Occupancy Contact Closed Open Displays ...

Страница 52: ... the control set point used to define where the ventilation will reach its maximum limit during occupied periods Viewable only if Ventilation DMP Type DCV Used to determine DCV ending control point Configuration Schedule Weekly Schedule Start Time User Admin Password level access X 00 00 23 59 06 00 Defines the start time for an occupied period End Time X 00 00 24 00 18 00 Defines the ending time ...

Страница 53: ...s locked out when OAT is greater than configured value and OAT is actively being broadcast Power Fail Restart Delay X 0 600 sec 60 sec Delay before equipment starts Occupancy Schedules X Disable Enable Enable Enables unit occupied Set Point Separation X 2 9 F 4 F Used to enforce minimum set point separation Configuration Service Test Test Mode Admin Password level access only X Disable Enable Disa...

Страница 54: ...dity sensor is present Factory Dehumidifica tion Reheat Coil X None Installed None Set to Installed if factory installed dehumidification reheat coil is present Occupancy Input Logic X Occupied Open Occupied Closed Occupied CLOSED Used to determine external occu pancy switch contact occupied state Condensate Switch Alarm Delay X 5 600 seconds 10 sec Delay before equipment alarms on high condensate...

Страница 55: ...Q Ventilation Occupied High Alarm Limit X 0 9999 ppm 1100 ppm Defines the fixed occupied high space IAQ Ventilation alarm limit IAQ Ventilation Alarm Delay X 0 1 1 0 min per ppm 0 25 min Used to calculate the delay time before an alarm is generated after the alarm condition occurs Rnet Sensor SPT Alarm X Ignore Display Ignore Determines if the SPT alarm is displayed on the local Rnet sensor Rnet S...

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Страница 58: ...to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53500052 01 Printed in U S A Form 50PEC 2SI Pg 58 7 09 Replaces 50PEC 1SI Copyright 2009 Carrier Corporation ...

Страница 59: ...EAT EXCHANGER Y N HAS PUMP BEEN TURNED ON AND ARE ISOLATION VALVES OPEN Y N HAS CONDENSATE CONNECTION BEEN MADE AND IS A TRAP INSTALLED Y N IS AN AIR FILTER INSTALLED Y N II START UP IS FAN OPERATING WHEN COMPRESSOR OPERATES Y N UNIT VOLTAGE COOLING OPERATION PHASE AB VOLTS PHASE AB AMPS CONTROL VOLTAGE IS CONTROL VOLTAGE ABOVE 21 6 VOLTS Y N IF NOT CHECK FOR PROPER TRANSFORMER CONNECTION TEMPERAT...

Страница 60: ...UID FACTOR Btu hr SUPERHEAT SUCTION TEMPERATURE SATURATED SUCTION TEMPERATURE DEG F SUBCOOLING SATURATED CONDENSING TEMPERATURE LIQUID LINE TEMPERATURE DEG F Use 500 for water 485 for antifreeze SUCTION COMPRESSOR DISCHARGE COAX EXPANSION VALVE F F AIR COIL F ft wg WATER OUT WATER IN F ft wg LOOK UP PRESSURE DROP IN TABLE 12 TO DETERMINE FLOW RATE F LIQUID LINE ft wg F SST SATURATED SUCTION TEMPER...

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