Daikin WRA Installation And Maintenance Data

Daikin WRA Installation And Maintenance Data Manual pdf 15 page image

IM 1072-1 Water to Water Source Heat Pumps Page 15 of 44Wiring DiagramLegend208-230/60/1, Unit Sizes 036, 048, 060 and 072FIELD POWER SUPPLY PER UNIT RATING PLATE. MINIMUM CIRCUIT AMPACITY ANDMAXIMUM SIZE OF TIME-DELAY FUSE OR HACR-TYPE CIRCUIT BREAKER PER UNITRATING PLATE. PROVIDE DISCONNECTING MEANS AND EQUIPMENT GROUNDING ASREQUIRED.TRANSFORMER MAY HAVE TAPS FOR 120V, 208V, 240V, OR 480V SYSTEM POWERSUPPLY. BEFORE APPLYING POWER TO THE UNIT, ENSURE TRANSFORMER IS WIREDFOR APPROPRIATE SYSTEM POWER SUPPLY. INSULATE SEPARATELY ANY UNUSEDLEADS. POLARITY IS NOT INDICATED. TYPICAL TRANSFORMER SHOWN. SEETRANSFORMER LABEL FOR LEAD COLOR CODING.“RVS” IS USED ONLY WITH WWR MODELS AND IS ENERGIZED IN COOLING MODE (LOADCOIL IS HEAT SOURCE, SOURCE COIL IS HEAT SINK).“RVS” IS NOT USED WITH WWC AND WWH MODELS.IF POWER MONITOR OUTPUT CONTACTS DO NOT TRANSFER WHEN POWER IS APPLIEDTO UNIT (BICOLOR LED GLOWS GREEN UNDER NORMAL CONDITIONS AND REDDURING FAULT CONDITIONS):1. VERIFY THAT ALL THREE PHASES ARE PRESENT AND ARE OF THE CORRECTVOLTAGE. IF ALL THREE PHASES ARE PRESENT AND ARE OF THE CORRECT VOLTAGE,PHASE ROTATION MAY BE INCORRECT. PERFORM STEP 2.2. DISCONNECT POWER TO THE WW* UNIT. VERIFY THAT POWER IS IN FACTDISCONNECTED. SWAP ANY TWO OF THE THREE UNIT POWER SUPPLY WIRES. WHENPOWER IS REAPPLIED, OUTPUT CONTACTS SHOULD NOW TRANSFER.1365LEGENDFUNCTIONALDESIGNATIONLINENUMBERDESCRIPTIONCL 17 OPTIONAL INDICATOR LIGHT - COMPRESSOR ONCC 32 COMPRESSOR CONTACTORCCH 10 CRANKCASE HEATERCCM 26 COMPRESSOR CONTROL MODULECHR 41 CHANGEOVER RELAY (WHEN USED)CM 2 COMPRESSOREGL 4 EQUIPMENT GROUNDING LUG(S)F1,F2 6,4 FUSING (WHEN USED) - SEE FUSE TABLEFL 37 OPTIONAL INDICATOR LIGHT - FAULTFS-L 28 OPTIONAL FLOW PROVING SWITCH – LOAD COILFS-S 28 OPTIONAL FLOW PROVING SWITCH – SOURCE COILHP 30 HIGH DISCHARGE PRESSURE CUTOUT SWITCHHRPR 18 HEAT RECOVERY PUMP RELAY (WHEN USED)IR 39 INTERLOCK RELAYLP1 30 LOW SUCTION PRESSURE CUTOUT SWITCH NO. 1LP2 26 LOW SUCTION PRESSURE CUTOUT SWITCH NO. 2LTC 20,30 LOW FLUID TEMPERATURE CUTOUT MODULEPCT 18 WASTE HEAT RECOVERY PUMP CONTROL THERMOSTAT (WHEN USED)PM 8,14 OPTIONAL POWER MONITORRC 2 MOTOR RUN CAPACITORRVS 15 REVERSING VALVE SOLENOID (WHEN USED)TB1 + TERMINAL BOARD NO. 1TB2 46,47 TERMINAL BOARD NO. 2TB3 26 TERMINAL BOARD NO. 3TB4 4,6 TERMINAL BOARD NO. 4 (WHEN USED)TR 13 CONTROL TRANSFORMERTC 23 TEMPERATURE CONTROLLER (OPTIONAL)TS-C 23 AQUASTAT – COOLING (WHEN USED)TS-H 22 AQUASTAT – HEATING (WHEN USED)WHR 5 OPTIONAL WASTE HEAT RECOVERY PUMPWTL 4 WATER TEMPERATURE LIMIT THERMOSTAT (WHEN USED)# SEE LINE NUMBER TO THE RIGHT OF CONTACTOR COIL ON WIRING DIAGRAM.+ MULTIPLE LINE NUMBERS.7 SEE FIGURE 1 ON SHEET 3 OF THIS DRAWING FOR BOARD LAYOUT, SENSORLOCATIONS, TEMPERATURE SETTING NOTE, AND SENSOR RESISTANCE VERSUSTEMPERATURE GRAPH.BK: BLACK PK: PINKBL: BLUE PR: PURPLEBR: BROWN R: REDG: GREEN W: WHITEO: ORANGE Y: YELLOWWIRE COLOR LEGENDNOTES:NUMBER PLACED AFTER DASH FOLLOWINGCOLOR CODE INDICATES WIRE GAGE. FOREXAMPLE> BK-12 IS A BLACK, 12 AWG WIRE.NO NUMBER AFTER COLOR CODEINDICATES 18 AWG WIRE. FOR EXAMPLE>BK IS A BLACK 18 AWG WIRE.ASTERISK AFTER DASH FOLLOWING COLORCODE INDICATES REFERRAL TOCOMPRESSOR WIRE SIZE TABLE.8“CHR” IS USED ONLY WITH “WWR” UNITS.“CHR” IS NOT USED WITH “WWC” AND “WWH” UNITS.1714 WHEN “FS-L” AND “FS-S” ARE NOT USED, THIS WIRE CONNECTS DIRECTLY TOTERMINAL Y OF “CCM”.WHEN “PM” IS NOT USED, THIS WIRE CONNECTS DIRECTLY TO TERMINAL R ON “TB1”.4THIS WIRE CONNECTS DIRECTLY FROM TERMINAL S TO TERMINAL Y ON “TB1” WHENOPTIONAL TEMPERATURE CONTROLLER “TC” IS NOT FURNISHED.HEAT RECOVERY OPTION:FIELD INSTALLED WASTE HEAT RECOVERY PUMP WIRING. USE 14 AWG, 75CCONDUCTORS MINIMUM . COMPLY WITH LOCAL CODES WHICH MAY REQUIRELARGER SIZE WIRING. INSTALL ADDITIONAL DISCONNECTING MEANS WHEREREQUIRED TO COMPLY WITH ELECTRICAL CODE. THIS EQUIPMENT MUST BEPERMANENTLY GROUNDED IN ACCORDANCE WITH ELECTRICAL CODE. TERMINALBOARD “TB4” IS RATED FOR BOTH 14 AND 12 AWG WIRE SIZES.THE FOLLOWING COMPONENTS ARE USED ONLY WHEN WASTE HEAT RECOVERY(DESUPERHEATER) OPTION IS FURNISHED: “F1”, “F2”, “HRPR”, “PCT”, “TB4”, “WHR”,AND “WTL”. “WHR” IS ORDERED SEPARATELY FOR FIELD INSTALLATION.2TYPICAL FIELD CONTROL WIRING SHOWN. ACTUAL FIELD WIRING MAY DIFFER FROMWIRING SHOWN HERE. USE 18 AWG MINIMUM FOR FIELD 24 VOLT CONTROL WIRING.TYPICAL REMOTE SWITCH SHOWN. REMOTE SWITCH MAY BE SUPPLIED BY OTHERSOR IS AVAILABLE AS AN OPTIONAL ACCESSORY FROM THE FACTORY. MINIMUM PILOTDUTY RATING OF EACH POLE OF REMOTE SWITCH IS 24 VOLT-AMPERES @ 24 VOLTSAC WHEN CONNECTED AS SHOWN.AQUASTATS “TS-H” AND “TS-C” ARE NOT USED WHEN OPTIONAL FACTORY INSTALLEDTEMPERATURE CONTROLLER “TC” IS FURNISHED. TYPICAL AQUASTATS SHOWN.AQUASTATS MAY BE SUPPLIED BY OTHERS OR ARE AVAILABLE AS AN OPTIONALACCESSORY FROM THE FACTORY. MINIMUM PILOT DUTY RATING OF EACH POLE OFAQUASTAT IS 24 VOLT-AMPERES @ 24 VOLTS AC WHEN CONNECTED AS SHOWN.910SEE FIGURE 2 ON SHEET 3 OF THIS DRAWING FOR COMPRESSOR CONTROL MODULEOPERATION.12WIRED AS SHOWN FOR OPEN LOOP OR HIGH TEMPERATURE CLOSED LOOPAPPLICATIONS. FOR LOW TEMPERATURE CLOSED LOOP APPLICATIONS, MOVE THISWIRE FROM TERMINAL 6 TO TERMINAL 7 ON "TB3".13WHEN OPTIONAL “LTC” IS NOT USED, THESE TWO WIRES ARE SPLICED TOGETHER.1516 CONDUCTOR “O” REQUIRED WITH WWR REVERSE CYCLE UNITS.CONDUCTOR “O” NOT USED WITH WWC COOLING AND WWR HEATING UNITS.INTERLOCK RELAY CONTACTS ARE PROVIDED TO OPERATE AN EXTERNAL PILOT DUTYLOAD (SUCH AS A PUMP RELAY COIL) WITH A CALL FOR COMPRESSOR.AN EXTERNAL LOAD POWERED BY TRANSFORMER “TR” IN THE WW* UNIT MUSTNOT EXCEED 12 VA SEALED (96 VA INRUSH) @ 24 VOLTS AC.EXTERNAL LOADS POWERED FROM AN EXTERNAL SOURCE ARE LIMITED TOCLASS 2 CIRCUITS ONLY (30 VOLTS AC MAXIMUM). EXTERNAL LOADCHARACTERISTICS MUST NOT EXCEED 10 AMPS MAKE, 1 AMP BREAK. MAINTAINSEPARATION BETWEEN CLASS 2 CIRCUITS OF DIFFERENT SOURCES.PROVIDE DISCONNECTING MEANS, EQUIPMENT GROUNDING, ANDOVERCURRENT PROTECTION AS REQUIRED.18FUSE NO. CLASS VOLTS AC AMPERES TIME DELAYF1,F2 CC 600 1.5 YESFUSE TABLEWHEN OPTIONAL TEMPERATURE CONTROLLER “TC” IS FURNISHED, INSTALLER MUSTPROGRAM CONTROLLER. REFER TO TEMPERATURE CONTROL INSTALLATIONINSTRUCTIONS.WITH REVERSE-CYCLE WWR UNITS, PROGRAM CONTROLLER AS ONE STAGECOOLING AND ONE STAGE HEATING. STAGE 1 IS THE COOLING STAGE AND STAGE 2 ISTHE HEATING STAGE.INSTALL SENSOR @ WATER INLET PIPE (LOAD).11FACTORY WIRINGFIELD WIRINGEARTH GROUNDCHASSIS (PANEL) GROUNDCOILNORMALLY OPEN CONTACTSIDENTIFIABLE TERMINALNON-IDENTIFIABLE TERMINAL,OTHER WIRE JUNCTIONS,INCLUDING SCHEMATICNORMALLY CLOSED CONTACTSTERMINAL BOARD NO. 1 (TB1)SYMBOL LEGENDOPTIONAL FIELD WIRINGOPTIONAL FACTORY WIRINGTERMINAL BOARD NO. 2 (TB2)TERMINAL BOARD NO. 3 (TB3)TERMINAL BOARD NO. 4 (TB4)WIRING DIAGRAM # 0962I-2631B, REV.BWW* 036, 048, 060, 072SINGLE PHASE