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Table 9 — UPM Board Fault Blink Codes

Safety controls include the following:

• High-pressure switch located in the refrigerant discharge

line and wired across the HPC terminals on the UPM

board.

• Low-pressure switch located in the unit refrigerant suc-

tion line and wired across terminals LPC1 and LPC2 on

the UPM board.

• UPM board dry contacts are normally open (NO).

• Water-side freeze protection sensor, mounted close to

condensing water coil, monitors refrigerant temperature

between condensing water coil and thermal expansion

valve. If temperature drops below or remains at freeze

limit trip for 30 seconds, the controller will shut down

the compressor and enter a soft lockout condition. The

default freeze limit trip is 30°F, however this can be

changed to 15°F by cutting the R30 or Freeze1 resistor

located on top of DIP switch SW1. Refer to Fig. 20, Item

3 for resistor location. If unit is employing a fresh water

system (no anti-freeze protection), it is extremely

important to have the Freeze1 R30 resistor set to 30°F in

order to shut down the unit at the appropriate leaving

water temperature and protect heat pump from freezing if

a freeze sensor is included.

• Evaporator freeze protection sensor, mounted between

the thermal expansion device and the evaporator, moni-

tors refrigerant temperature between the evaporator coil

and thermal expansion valve. If temperature drops below

or remains at freeze limit trip for 30 seconds, the control-

ler will shut down the compressor and enter into a soft

lockout condition. The default freeze limit trip is 30°F.

(See Fig. 21 and 22.)

• The condensate overflow protection sensor is located in

the drain pan of the unit and connected to the ‘COND’

terminal on the UPM board.

Fig. 22 — No Freeze Protection Sensor

The UPM board includes the following features:

Anti-short Cycle Timer — A 5-minute delay on break timer

prevents compressor short cycling.
Random Start — Each controller has an unique random start

delay ranging from 270 to 300 seconds on initial power up to

reduce the chance of multiple units simultaneously starting at

the same time after power up or after a power interruption, thus

avoiding creating large inrush current.
Low Pressure Bypass Timer — If the compressor is running

and the low-pressure switch opens, the controller will keep the

compressor ON for 120 seconds. After 2 minutes if the low-

pressure switch remains open, the controllers will shut down

the compressor and enter a soft lockout. The compressor will

not be energized until the low-pressure switch closes and the

anti-short cycle time delay expires. If the low-pressure switch

opens 2 to 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 does the com-

pressor if the incoming power falls below 18 VAC. The com-

pressor will remain OFF until the voltage is above 18 VAC and

ANTI-SHORT CYCLE TIMER (300 seconds) times out. The

unit will not go into a hard lockout.
Malfunction Output — Alarm output is normally open (NO)

dry contact. If pulse is selected the alarm output will be pulsed.

The fault output will depend on the DIP switch setting for

ALARM. If it is set to CONST, a constant signal will be pro-

duced to indicate a fault has occurred and the unit requires in-

spection to determine the type of fault. If it is set to PULSE, a

pulse signal is produced and a fault code is detected by a re-

mote device indicating the fault. The remote device must have

a malfunction detection capability when the UPM board is set

to PULSE.

LED

BLINKS

FAULT

FAULT CRITERIA

None

All fault conditions nominal

High Pressure

Refrigerant discharge

pressure has exceeded

600 psig

Low Pressure

Refrigerant suction pressure

has fallen below 40 psig

Water Coil Freeze

Condition

Refrigerant temperature to the

water coil has fallen below

30 F for 30 seconds

Condensate Overflow

Condensate levels in the unit

drain pan are too high

Air Coil Freeze

Condition

Refrigerant temperature to the

air coil has fallen below

30 F for 30 seconds

Brown Out

Control voltage has fallen

below 18 VAC

Fig. 21 — Water-Side Freeze Protection Sensor

WARNING

If unit is employing a fresh water system (no anti-freeze

protection), it is extremely important to have the Freeze1

R30 resistor set to 30°F in order to shut down the unit at the

appropriate leaving-water temperature and protect your

heat pump from freezing if a freeze sensor is included.

Содержание Aquazone 50PCD

Страница 1: ...alves 38 50PCH PCV PCD START UP CHECKLIST CL 1 SAFETY CONSIDERATIONS Installation and servicing of air conditioning equipment can be hazardous due to system pressure and electrical compo nents Only trained and qualified service personnel should install repair or service air conditioning equipment Untrained personnel can perform basic maintenance func tions of cleaning coils and filters and replaci...

Страница 2: ...h to the unit within the closet or mechanical room Space should be sufficient to allow return air to freely enter the space 9 Provide ready access to water valves and fittings and screwdriver access to unit side panels discharge collar and all electrical connections 10 Where access to side panels is limited pre removal of the control box side mounting screws may be necessary for future servicing S...

Страница 3: ... 9 x 7 ECM FAN MOTOR AND BLOWER Fan Motor Type Speeds N A C T ECM Fan Motor hp 1 3 Blower Wheel Size Dia x W in 9 x 7 WATER CONNECTION SIZE FPT in 3 4 Coaxial Coil Volume gal 0 06 0 08 0 09 0 14 0 24 VERTICAL CABINET Refrigeration Charge oz 14 15 21 19 17 28 29 37 Air Coil Dimensions H x W 10 x 14 12 X 16 5 16 X 16 5 20 x 16 5 Std Filter 1 in Throwaway L x H 10 x 16 16 x 20 20 x 20 Opt Filter 2 in...

Страница 4: ...n Charge oz 48 52 59 73 Air Coil Dimensions H x W 24 x 20 2 20 x 16 24 x 20 2 24 x 26 75 32 x 26 6 Std Filter 1 in Throwaway L x H 24 x 24 20 x 20 24 x 24 24 x 30 16 x 30 2 Opt Filter 2 in MERV 8 or 13 Throwaway L x H 24 x 24 20 x 20 24 x 24 24 x 30 16 x 30 2 Weight Operating lb 229 217 239 287 307 336 Weight Shipping lb 255 243 265 312 331 360 HORIZONTAL CABINET Refrigeration Charge oz 46 N A 43 ...

Страница 5: ... FILTER RACK R A DUCT WIDTH CAB FRONT TO FILTER RACK WATER INLET WATER OUTLET SIDE TO DISC WIDTH DISC WIDTH TOP TO DISC FLE AND FRS DISC HEIGHT END TO DISC STR TOP TO DISC FRE AND FLS FILTER RACK HEIGHT R A DUCT FLANGE HEIGHT 007 19 0 33 0 11 5 1 5 16 15 15 35 2 38 9 50 5 375 6 30 5 97 4 10 4 875 1 41 11 3 8 6 3 4 10x16x1 009 19 0 33 0 11 5 1 5 16 15 15 35 2 38 9 50 5 375 6 30 5 97 4 10 4 875 1 41...

Страница 6: ...C WATER INLET WATER OUTLET CONDEN SATE DRAIN R A DUCT WIDTH R ADUCT FLANGE HEIGHT FILTER RACK HEIGHT 007 19 0 19 00 24 25 10 0 8 0 4 5 9 3 2 44 9 68 13 87 16 0 8 0 10 0 5 4 3 4 10x16x1 009 19 0 19 00 24 25 10 0 8 0 4 5 9 3 2 44 9 68 13 87 16 0 8 0 10 0 5 4 3 4 10x16x1 012 19 0 19 00 24 25 10 0 8 0 4 5 9 3 2 44 9 68 13 87 16 0 8 0 10 0 5 4 3 4 10x16x1 015 21 5 21 50 32 25 10 0 8 0 5 8 10 0 2 85 8 4...

Страница 7: ...he unit The 2 in filter rack is 4 sided with a filter access door on one end and can accept either a 1 in or 2 in filter 50PCD UNIT SIZE A B C H J M N P CONDENSER WATER CONNECTIONS FPT RECOMMENEDED REPLACEMENT NOMINAL FILTER SIZE WIDTH DEPTH HEIGHT WATER INLET WATER OUTLET R A DUCT WIDTH R A DUCT FLANGE HEIGHT FILTER RACK HEIGHT 015 21 5 21 50 32 25 19 9 25 5 20 0 14 0 16 0 3 4 16x20x1 018 21 5 21...

Страница 8: ...l surface strong enough to hold their weight they are typically suspended above a ceiling by thread ed rods All horizontal units come with a Hanging Bracket Kit to facilitate suspended unit mounting Hanging brackets are in stalled as shown in Fig 4 Fig 4 Hanging Bracket Locations The hanging bracket kit includes the following 5 Brackets 5 Rubber vibration isolators 8 Screws 10 x 1 2 in 10 Bolts 1 ...

Страница 9: ...r existing leaks and repair The duct system and all diffusers should be sized to handle the designed airflow qui etly To maximize sound attenuation of the unit blower the supply and return air plenums should be insulated There should be no direct straight air path throught the air grille into the heat pump The return air inlet to the heat pump must have at least one 90 degree turn away from the sp...

Страница 10: ...LEVEL 1 4 UNIT SIZE MOTOR HP TAP 1 TAP 2 TAP 3 007 1 10 LOW MED HIGH 009 1 10 LOW MED HIGH 012 1 10 LOW MED HIGH 015 1 6 LOW MED HIGH 018 1 4 LOW MED HIGH 024 1 4 LOW MED HIGH 030 1 4 LOW MED HIGH 036 1 2 LOW MED HIGH 041 3 4 LOW MED HIGH 042 1 2 LOW MED HIGH 048 3 4 LOW MED HIGH 060 1 LOW MED HIGH 070 1 LOW MED HIGH UNIT SIZE MOTOR HP TAP 1 TAP 2 TAP 3 TAP 4 TAP 5 015 1 3 LOW MED LOW MED MED HI H...

Страница 11: ...flange fitted substitute Do not overtighten connections Route piping to avoid service access areas to unit Use pressure temperature P T plugs to measure flow of pressure drop INSTALLING SUPPLY AND RETURN HOSE KIT Follow these piping guidelines 1 Install a drain valve at the base of each supply and return riser to facilitate system flushing 2 Install shutoff balancing valves and unions at each unit...

Страница 12: ... mounted dis connect switches except units with dual power supply power is connected to the line L side of the compressor contactor and the ground lug in the unit electrical box Units with Dual Power Supplies For models with dual power supplies special order one power supply feeds the compressor and a second power supply feeds the unit fan mo tor and control circuit The compressor power supply sho...

Страница 13: ... Stage Complete C Control UPM STATUS LED BLINK CODES 1 HIGH PRESSURE FAULT 2 LOW PRESSURE FAULT 3 CONDENSER FREEZE CONDITION 4 CONDENSATE OVERFLOW FAULT 5 BROWN OUT FAULT 6 EVAPORATOR FREEZE CONDITION BLK HI BLU MED RED LOW 50PC111000 REV 5 ...

Страница 14: ...e Stage Deluxe D Control UPM STATUS LED BLINK CODES 1 HIGH PRESSURE FAULT 2 LOW PRESSURE FAULT 3 CONDENSER FREEZE CONDITION 4 CONDENSATE OVERFLOW FAULT 5 BROWN OUT FAULT 6 EVAPORATOR FREEZE CONDITION BLK HI BLU MED RED LOW 50PC111001 REV 5 ...

Страница 15: ...ingle Phase Single Stage Complete C Control UPM STATUS LED BLINK CODES 1 HIGH PRESSURE FAULT 2 LOW PRESSURE FAULT 3 CONDENSER FREEZE CONDITION 4 CONDENSATE OVERFLOW FAULT 5 BROWN OUT FAULT 6 EVAPORATOR FREEZE CONDITION 50PC111002 REV 3 ...

Страница 16: ...Single Phase Single Stage Deluxe D Control UPM STATUS LED BLINK CODES 1 HIGH PRESSURE FAULT 2 LOW PRESSURE FAULT 3 CONDENSER FREEZE CONDITION 4 CONDENSATE OVERFLOW FAULT 5 BROWN OUT FAULT 6 EVAPORATOR FREEZE CONDITION 50PC111003 REV 6 ...

Страница 17: ... Stage Complete C Control UPM STATUS LED BLINK CODES 1 HIGH PRESSURE FAULT 2 LOW PRESSURE FAULT 3 CONDENSER FREEZE CONDITION 4 CONDENSATE OVERFLOW FAULT 5 BROWN OUT FAULT 6 EVAPORATOR FREEZE CONDITION BLK HI BLU MED RED LOW 50PC311000 REV 4 ...

Страница 18: ...hree Phase Single Stage Complete C Control UPM STATUS LED BLINK CODES 1 HIGH PRESSURE FAULT 2 LOW PRESSURE FAULT 3 CONDENSER FREEZE CONDITION 4 CONDENSATE OVERFLOW FAULT 5 BROWN OUT FAULT 6 EVAPORATOR FREEZE CONDITION 50PC311002 REV 3 ...

Страница 19: ...le Stage WSHP Open UPM STATUS LED BLINK CODES 1 HIGH PRESSURE FAULT 2 LOW PRESSURE FAULT 3 CONDENSER FREEZE CONDITION 4 CONDENSATE OVERFLOW FAULT 5 BROWN OUT FAULT 6 EVAPORATOR FREEZE CONDITION BLK HI BLU MED RED LOW ORG BLU RED BLK 50PC311016 REV 5 ...

Страница 20: ... 1 60 238 292 1 8 5 46 0 1 60 0 25 10 10 12 2 20 3 208 230 3 60 197 253 1 6 9 63 0 1 80 0 25 8 70 10 4 15 4 460 3 60 414 506 1 5 4 30 0 0 90 0 25 6 30 7 7 15 036 1 208 230 1 60 197 253 1 13 0 74 0 4 40 0 50 17 40 20 7 30 2 265 1 60 238 292 1 11 3 67 0 3 30 0 50 14 60 17 4 25 3 208 230 3 60 197 253 1 7 8 68 0 4 40 0 50 12 20 14 2 20 4 460 3 60 414 506 1 3 9 34 0 1 80 0 50 5 70 6 7 15 041 1 208 230 ...

Страница 21: ... 15 2 265 1 60 238 292 1 6 7 46 2 6 0 33 9 3 11 0 15 3 208 230 3 60 197 253 1 5 9 63 2 8 0 33 8 7 10 2 15 4 460 3 60 414 506 1 2 9 30 2 1 0 50 5 0 5 7 15 030 1 208 230 1 60 197 253 1 9 9 54 2 8 0 33 12 7 15 2 25 2 265 1 60 238 292 1 8 5 46 2 6 0 33 11 1 13 2 20 3 208 230 3 60 197 253 1 6 9 63 2 8 0 33 9 7 11 4 15 4 460 3 60 414 506 1 5 4 30 2 1 0 50 7 5 8 9 15 036 1 208 230 1 60 197 253 1 13 0 74 ...

Страница 22: ...ut or relay See Table 9 for UPM board fault blink codes Fig 20 Unit Protection Module UPM Table 8 Low Voltage VA Draw IMPORTANT Exceptionally long runs of thermostat wire should be avoided to prevent voltage drops in the control circuit CAUTION Exceeding the transformer capacity can result in low con trol voltage erratic unit operation or damage to the heat pump WARNING To avoid possible injury or...

Страница 23: ...arge inrush current Low Pressure Bypass Timer If the compressor is running and the low pressure switch opens the controller will keep the compressor ON for 120 seconds After 2 minutes if the low pressure switch remains open the controllers will shut down the compressor and enter a soft lockout The compressor will not be energized until the low pressure switch closes and the anti short cycle time d...

Страница 24: ...with this alarm condition If this alarm oc curs 2 times or 4 if DIP switch is set to 4 within an hour the controller will enter into a hard lockout condition Intelligent Reset If a fault condition is initiated the 5 min ute delay on break time period is initiated and the unit will restart after these delays expire During this period the fault LED will indicate the cause of the fault If the fault c...

Страница 25: ...K 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 NO YES NO YES HPC CLOSED RESET ON...

Страница 26: ...l static 0 15 in wg on medium speed factory setting and rated airflow at a higher static 0 4 to 0 5 in wg on high speed for applications where higher static is required Low speed will deliver approximately 85 of rated airflow at 0 10 in wg NOTE Blower performance is shown in Tables 11 and 12 Table 11 50PCH PCV 007 070 50PCD 015 070 PSC Blower Performance NOTE 575V models employ 1 speed motors high...

Страница 27: ...0 970 920 860 810 750 660 530 024 1 850 650 610 580 560 520 2 740 720 690 660 620 570 3 850 830 800 770 730 690 630 4 950 920 890 870 840 820 770 650 5 1160 1110 1050 990 920 800 670 560 030 1 950 620 600 570 540 490 2 730 710 670 640 610 550 3 820 790 760 740 710 670 630 4 940 910 880 850 800 740 660 5 1070 1010 950 900 840 760 670 036 1 1200 1120 1090 1055 1030 1000 2 1260 1230 1200 1170 1140 10...

Страница 28: ...g P T plugs Check the elevation and cleanliness of the condensate lines any dripping could be a sign of a blocked line Be sure the condensate trap in cludes a water seal 4 Check the temperature of both supply and discharge wa ter Compare to Tables 14 25 If temperature is within range proceed If temperature is outside the range check the cooling refrigerant pressures in Tables 14 25 5 Check air tem...

Страница 29: ... 39 48 2 4 128 157 296 362 9 10 20 25 197 241 355 434 8 10 41 51 100 1 8 140 171 345 422 12 14 19 23 2 4 133 162 328 401 8 10 20 24 DB Dry Bulb No Operation in This Temperature Range ENTERING WATER TEMP F WATER FLOW GPM TON COOLING HEATING SUCTION PRESSURE PSIG DISCHARGE PRESSURE PSIG WATER TEMP RISE F AIR TEMP DROP F DB SUCTION PRESSURE PSIG DISCHARGE PRESSURE PSIG WATER TEMP DROP F AIR TEMP RISE...

Страница 30: ... 144 176 328 401 8 9 17 21 156 191 327 400 6 7 26 32 100 2 8 155 189 392 480 13 16 16 19 3 8 149 182 369 451 8 9 17 21 DB Dry Bulb No Operation in This Temperature Range ENTERING WATER TEMP F WATER FLOW GPM TON COOLING HEATING SUCTION PRESSURE PSIG DISCHARGE PRESSURE PSIG WATER TEMP RISE F AIR TEMP DROP F DB SUCTION PRESSURE PSIG DISCHARGE PRESSURE PSIG WATER TEMP DROP F AIR TEMP RISE F 30 3 0 65 ...

Страница 31: ...9 48 7 0 121 148 320 392 9 10 20 25 176 215 416 509 8 10 41 51 100 5 0 130 159 374 457 12 14 19 23 7 0 124 151 355 434 8 10 20 24 DB Dry Bulb No Operation in This Temperature Range ENTERING WATER TEMP F WATER FLOW GPM TON COOLING HEATING SUCTION PRESSURE PSIG DISCHARGE PRESSURE PSIG WATER TEMP RISE F AIR TEMP DROP F DB SUCTION PRESSURE PSIG DISCHARGE PRESSURE PSIG WATER TEMP DROP F AIR TEMP RISE F...

Страница 32: ...44 176 328 401 8 9 17 21 156 191 327 400 6 7 26 32 100 4 5 155 189 392 480 13 16 16 19 9 0 149 182 369 451 8 9 17 21 DB Dry Bulb No Operation in This Temperature Range ENTERING WATER TEMP F WATER FLOW GPM TON COOLING HEATING SUCTION PRESSURE PSIG DISCHARGE PRESSURE PSIG WATER TEMP RISE F AIR TEMP DROP F DB SUCTION PRESSURE PSIG DISCHARGE PRESSURE PSIG WATER TEMP DROP F AIR TEMP RISE F 30 6 0 64 78...

Страница 33: ...0 0 139 170 347 424 11 14 17 21 151 185 371 453 10 12 32 39 100 6 0 149 183 415 508 19 24 16 19 10 0 143 175 391 477 11 14 17 21 DB Dry Bulb No Operation in This Temperature Range ENTERING WATER TEMP F WATER FLOW GPM TON COOLING HEATING SUCTION PRESSURE PSIG DISCHARGE PRESSURE PSIG WATER TEMP RISE F AIR TEMP DROP F DB SUCTION PRESSURE PSIG DISCHARGE PRESSURE PSIG WATER TEMP DROP F AIR TEMP RISE F ...

Страница 34: ...5 To purge keep the pump at 50 psig until maximum pumping pressure is reached 6 Open the return valve to send a pressure surge through the loop to purge any air pockets in the piping system 7 A noticeable drop in fluid level will be seen in the flush cart tank This is the only indication of air in the loop NOTE If air is purged from the system while using a 10 in PVC flush tank the level drop will...

Страница 35: ... a 5 minute anti short cycle upon power up Units with Complete C or Deluxe D Controls STANDBY Y and W terminals are not active in Standby mode however the O and G terminals may be active depend ing on the application The compressor will be off COOLING Y and O terminals are active in Cooling mode After power up the first call to the compressor will initiate a 270 to 300 second random start delay an...

Страница 36: ...If continual lockouts occur call a mechanic immediately and have them check for water flow problems water temperature problems airflow problems or air temperature problems Use of the pres sure and temperature charts for the unit may be required to properly determine the cause Filters Filter changes or cleanings are required at regular intervals The time period between filter changes will depend up...

Страница 37: ...nser with a supply line valve If pump is a nonoverloading type the valve may be fully closed while pump is running For average scale deposit allow solution to remain in condenser overnight For heavy scale deposit allow 24 hours Drain condenser and flush with clean water Follow acid manu facturer s instructions Checking System Charge Units are shipped with full operating charge If recharging is nec...

Страница 38: ... the temperature of and pressure within the bulb decreases the valve will modulate closed and restrict the refrigerant flow through the valve The result is less refrigerant in the evaporator and an increase in the superheat As the temperature at the bulb increases the dia phragm pressure will increase which opens the valve and allows more refrigerant flow and a reduction in the superheat If the se...

Страница 39: ... superheat calculations may be required Diagnostics Several tests may be required to determine if a TXV has failed The following tools may be required for testing 1 Refrigerant gage manifold compatible with the refriger ant in the system 2 Digital thermometer preferably insulated with wire leads that can be connected directly to the tubing 3 Refrigerant pressure temperature chart for the refrigera...

Страница 40: ... understood and carefully followed Fail ure to follow these instructions can result in a system that is contaminated with moisture to the extent that sev eral filter drier replacements may be required to properly dry the system IMPORTANT Repair of any sealed refrigerant system requires training in the use of refrigeration tools and proce dures Repair should only be attempted by a qualified ser vic...

Страница 41: ...k for blockage Check that there is adequate space between the return air open ing and walls or other obstructions on free return applications X X Is fault LED Blinking 5 times Brown out fault low supply voltage Check primary voltage ensure it is within the limits listed on the unit data plate Brown out fault overloaded control circuit Check control voltage if it is below 18 V check acces sories co...

Страница 42: ...P switches are in the proper configuration refer to the blower performance tables Faulty motor Check supply voltage to the motor Check that all motor wires are secure Move the TEST DIP switch to ON and the other switches to OFF on the ADJUST switch block on the interface board the motor should run at 70 torque whrn G is called With power off spin the motor shaft noise resistance or uneven motion c...

Страница 43: ...irflow Fan speed setting too high Consult blower performance table and reduce fan speed if possible Structure bourne noise Unit not mounted on full vibra tion pad Mount unit on a vibration pad Unit not connected with flexi ble conduit water lines and or ductwork Install unit in accordance with instructions Unit cabinet touching wall or other building component Adjust unit location to avoid unit to...

Страница 44: ...to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53500191 01 Printed in U S A Form 50PC 5SI Pg 44 9 18 Replaces 50PC 4SI Carrier Corporation 2018 8733952368 ...

Страница 45: ... AT HEAT EXCHANGER Y N HAS PUMP BEEN TURNED ON AND ARE ISOLATION VALVES OPEN Y N HAS CONDENSATE CONNECTION BEEN MADE AND IS ATRAP INSTALLED Y N IS AN AIR FILTER INSTALLED Y N II START UP IS FAN OPERATING WHEN COMPRESSOR OPERATES Y N IF 3 PHASE SCROLL COMPRESSOR IS PRESENT VERIFY PROPER ROTATION PER INSTRUCTIONS Y N UNIT VOLTAGE COOLING OPERATION PHASE AB VOLTS PHASE BC VOLTS PHASE CAVOLTS if 3 pha...

Страница 46: ...COOLING CYCLE AIR IN F AIR OUT F HEATING CYCLE AIR IN F AIR OUT F a50 8445 SUCTION COMPRESSOR DISCHARGE COAX EXPANSION VALVE F F AIR COIL F PSI WATER OUT WATER IN F PSI LOOK UP PRESSURE DROP IN TABLE 26 TO DETERMINE FLOW RATE F LIQUID LINE PSI F SAT SUCTION COMPRESSOR DISCHARGE COAX EXPANSION VALVE F F AIR COIL F PSI WATER OUT WATER IN F PSI LOOK UP PRESSURE DROP IN TABLE 26 TO DETERMINE FLOW RATE...

Страница 47: ...OF REJECTION FLOW RATE GPM x TEMP DIFF DEG F x FLUID FACTOR Btu hr SUPERHEAT SUCTION TEMPERATURE SUCTION SATURATION TEMPERATURE DEG F SUBCOOLING DISCHARGE SATURATION TEMPERATURE LIQUID LINE TEMPERATURE DEG F Use 500 for water 485 for antifreeze ...

Страница 48: ...e at any time specifications or designs without notice and without incurring obligations Catalog No 04 53500191 01 Printed in U S A Form 50PC 5SI Pg CL 4 9 18 Replaces 50PC 4SI Carrier Corporation 2018 CUT ALONG DOTTED LINE CUT ALONG DOTTED LINE 8733952368 ...

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