Legend - Daikin WRA Installation And Maintenance Data

Wiring Diagram

Legend

208-230/60/3, Unit Sizes 120, 150, 180, 240 and 300
LEGEND
FUNCTIONAL LINE
DESIGNATION NUMBER
C1L 44 OPTIONAL INDICATOR LIGHT - COMPRESSOR 1 ON
C2L 45 OPTIONAL INDICATOR LIGHT - COMPRESSOR 2 ON
CC1 27 COMPRESSOR NO. 1 CONTACTOR
CC1-A1 # "CC1" AUXILIARY CONTACT NO. 1
CC1-A2 # "CC1" AUXILIARY CONTACT NO. 2 (WHEN USED)
CC2 38 COMPRESSOR NO. 2 CONTACTOR
CC2-A # "CC" AUXILIARY CONTACT (WHEN USED)
CCH,CCH2 11,12 CRANKCASE HEATER NO. 1 & NO. 2
CCM1 21 COMPRESSOR CONTROL MODULE NO. 1
CCM2 32
COMPRESSOR CONTROL MODULE NO. 2
CHR 60 CHANGEOVER RELAY (WHEN USED)
CM1 2
COMPRESSOR NO. 1
CM2 5 COMPRESSOR NO. 2
CR1 58 COMPRESSOR NO. 1 PILOT RELAY
CR2 59 COMPRESSOR NO. 2 PILOT RELAY
EGB 4 EQUIPMENT GROUNDING BAR
EMR 67 OPTIONAL ENERGY MANAGEMENT RELAY
F1,F2,F3 7 FUSING - SEE FUSE TABLE
FL 43 OPTIONAL INDICATOR LIGHT - FAULT
FS-L 23
OPTIONAL FLOW PROVING SWITCH – LOAD COIL
FS-S 23 OPTIONAL FLOW PROVING SWITCH – SOURCE COIL
HDT1 24 HIGH DISCHARGE TEMPERATURE CUTOUT NO. 1
HDT2 35 HIGH DISCHARGE TEMPERATURE CUTOUT NO. 2
HP1 25
HIGH DISCHARGE PRESSURE CUTOUT SWITCH NO. 1
HP2 36
HIGH DISCHARGE PRESSURE CUTOUT SWITCH NO. 2
LP1 25 LOW SUCTION PRESSURE CUTOUT SWITCH NO. 1 (CKT 1)
LP2 36 LOW SUCTION PRESSURE CUTOUT SWITCH NO. 2 (CKT 2)
LP3 21 LOW SUCTION PRESSURE CUTOUT SWITCH NO. 3 (CKT 1)
LP4 32
LOW SUCTION PRESSURE CUTOUT SWITCH NO. 4 (CKT 2)
LTC 17,25,36 LOW FLUID TEMPERATURE CUTOUT MODULE
PDB 1,2,3
POWER DISTRIBUTION BLOCK
PM 9,51 OPTIONAL POWER MONITOR
RVS1 52 REVERSING VALVE SOLENOID CKT 1 (WHEN USED)
RVS2 53 REVERSING VALVE SOLENOID CKT 2 (WHEN USED)
TB1 + TERMINAL BOARD NO. 1
TB2 64,65 TERMINAL BOARD NO. 2
TB3 + TERMINAL BOARD NO. 3
TB4 21 TERMINAL BOARD NO. 4
TB5 32 TERMINAL BOARD NO. 5
TB6 11 TERMINAL BOARD NO. 6
TB7 67,68 TERMINAL BOARD NO. 7 (WHEN USED)
TR1 50 CONTROL TRANSFORMER NO. 1
TR2 15 CONTROL TRANSFORMER NO. 2
TC 54,54 TEMPERATURE CONTROLLER (OPTIONAL)
TS-C 55 AQUASTAT – COOLING (WHEN USED)
TS-H 54 AQUASTAT – HEATING (WHEN USED)
# SEE LINE NUMBER TO THE RIGHT OF CONTACTOR COIL ON WIRING DIAGRAM.
+ MULTIPLE LINE NUMBERS.
FUSE TABLE
FUSE NO. CLASS VOLTS AC
F1,F2,F3† CC 600
† F3 IS USED ONLY WHEN OPTIONAL POWER MONITOR IS FURNISHED.
+ 208/230 VOLT UNITS USE 2 AMPERES.
460 VOLT UNITS USE 1 AMPERES.
1 THREE PHASE FIELD POWER SUPPLY PER UNIT RATING PLATE. MINIMUM CIRCUIT
AMPACITY AND MAXIMUM SIZE OF TIME-DELAY FUSE OR HACR-TYPE CIRCUIT BREAKER
PER UNIT RATING PLATE. PROVIDE DISCONNECTING MEANS AND EQUIPMENT
GROUNDING AS REQUIRED.
2
TRANSFORMER MAY HAVE TAPS FOR MULTIPLE SYSTEM POWER SUPPLY VOLTAGES.
BEFORE APPLYING POWER TO THE UNIT, ENSURE TRANSFORMER IS WIRED FOR
APPROPRIATE SYSTEM POWER SUPPLY. INSULATE SEPARATELY ANY UNUSED LEADS.
POLARITY IS NOT INDICATED. TYPICAL TRANSFORMER SHOWN. SEE TRANSFORMER LABEL
FOR LEAD COLOR CODING. A PUSH TO RESET FUSEHOLDER-TYPE THERMAL CIRCUIT
BREAKER IS MOUNTED ON THE TRANSFORMER. THE CIRCUIT BREAKER IS WIRED IN SERIES
WITH ONE SIDE OF THE TRANSFORMER SECONDARY WINDING.
3 SEE FIGURE 1 ON SHEET 3 OF THIS DRAWING FOR BOARD LAYOUT, SENSOR
LOCATIONS, TEMPERATURE SETTING NOTE, AND SENSOR RESISTANCE VERSUS
TEMPERATURE GRAPH.
SEE FIGURE 2 ON SHEET 3 OF THIS DRAWING FOR COMPRESSOR CONTROL MODULE
4
OPERATION.
5 WHEN "FS-L" AND "FS-S" ARE NOT USED, THIS WIRE CONNECTS DIRECTLY TO
TERMINAL 5 OF "TB3".
WIRED AS SHOWN FOR OPEN LOOP OR HIGH TEMPERATURE CLOSED LOOP
6
APPLICATIONS. FOR LOW TEMPERATURE CLOSED LOOP APPLICATIONS, MOVE THIS
WIRE FROM TERMINAL 6 TO TERMINAL 7 ON "TB4".
7 WHEN "LTC" IS NOT USED, THIS WIRE CONNECTS DIRECTLY FROM "HPS1" TO EITHER
"HDT1" WHEN USED OR TO HPS TERMINAL OF "CCM1" ("HDT1" NOT USED).
8 WHEN OPTIONAL "LTC" IS NOT USED, THESE TWO WIRES ARE SPLICED TOGETHER.
9 WIRED AS SHOWN FOR OPEN LOOP OR HIGH TEMPERATURE CLOSED LOOP
APPLICATIONS. FOR LOW TEMPERATURE CLOSED LOOP APPLICATIONS, MOVE THIS
WIRE FROM TERMINAL 8 TO TERMINAL 9 ON "TB5".
10
WHEN "LTC" IS NOT USED, THIS WIRE CONNECTS DIRECTLY FROM "HPS2" TO EITHER
"HDT2" WHEN USED OR TO HPS TERMINAL OF "CCM2" ("HDT2" NOT USED).
11 WHEN OPTIONAL "LTC" IS NOT USED, THESE TWO WIRES ARE SPLICED TOGETHER.
12 WHEN "CHR" IS NOT USED, THIS WIRE CONNECTS DIRECTLY TO TERMINAL 1 ON "PM" --
OR-- WHEN "PM" IS NOT USED, TO TERMINAL 4 ON "EMR" --OR-- WHEN "EMR" IS NOT
USED,TO TERMINAL R ON "TB1".
13 IF POWER MONITOR OUTPUT CONTACTS DO NOT TRANSFER WHEN POWER IS APPLIED
TO UNIT (BICOLOR LED GLOWS GREEN UNDER NORMAL CONDITIONS AND RED
DURING FAULT CONDITIONS):
1. VERIFY THAT ALL THREE PHASES ARE PRESENT AND ARE OF THE CORRECT
VOLTAGE. 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 FACT
DISCONNECTED. SWAP ANY TWO OF THE THREE UNIT POWER SUPPLY WIRES. WHEN
POWER IS REAPPLIED, OUTPUT CONTACTS SHOULD NOW TRANSFER.
Page 24 of 44
DESCRIPTION
AMPERES TIME DELAY
+ YES
Water to Water Source Heat Pumps
WIRE COLOR LEGEND
BK: BLACK PK:
BL: BLUE PR (V): PURPLE (VIOLET)
BR: BROWN R:
G: GREEN W:
GY: GRAY Y:
O: ORANGE
NOTES:
NUMBER PLACED AFTER DASH FOLLOWING COLOR
CODE INDICATES WIRE GAGE. FOR EXAMPLE> BK-12 IS
A BLACK, 12 AWG WIRE.
NO NUMBER AFTER COLOR CODE INDICATES 18 AWG
WIRE. FOR EXAMPLE> BK IS A BLACK 18 AWG WIRE.
WHEN COLOR COMBINATIONS ARE USED, THE COLORS
ARE SEPARATED BY A SLASH (/). FOR EXAMPLE:
ORANGE/WHITE (O/W). THE PRIMARY COLOR CODE OF
THE WIRE IS SHOWN FIRST, TRACER OR STRIPE SHOWN
LAST.
BONDING CONDUCTORS INDICATED AS GREEN MAY
ALSO BE GREEN WITH ONE OR MORE YELLOW STRIPES.
SYMBOL LEGEND
FACTORY WIRING
OPTIONAL FACTORY WIRING
FIELD WIRING
OPTIONAL FIELD WIRING
EARTH GROUND
CHASSIS (PANEL) GROUND
TERMINAL BOARD NO. 1 (TB1)
TERMINAL BOARD NO. 2 (TB2)
TERMINAL BOARD NO. 3 (TB3)
TERMINAL BOARD NO. 4 (TB4)
TERMINAL BOARD NO. 5 (TB5)
TERMINAL BOARD NO. 6 (TB6)
TERMINAL BOARD NO. 7 (TB7)
COIL
NORMALLY OPEN CONTACTS
NORMALLY CLOSED CONTACTS
IDENTIFIABLE TERMINAL
NON-IDENTIFIABLE TERMINAL,
OTHER WIRE JUNCTIONS,
INCLUDING SCHEMATIC
14
TYPICAL FIELD CONTROL WIRING SHOWN. ACTUAL FIELD WIRING MAY DIFFER FROM
WIRING SHOWN HERE. USE 18 AWG MINIMUM FOR FIELD 24 VOLT CONTROL WIRING.
TYPICAL REMOTE SWITCH SHOWN. REMOTE SWITCH MAY BE SUPPLIED BY OTHERS
OR IS AVAILABLE AS AN OPTIONAL ACCESSORY FROM THE FACTORY. MINIMUM PILOT
DUTY RATING OF EACH POLE OF REMOTE SWITCH IS 24 VOLT-AMPERES @ 24 VOLTS
AC WHEN CONNECTED AS SHOWN.
15 "RVS1" AND "RVS2" ARE USED ONLY WITH WWR MODELS AND ARE ENERGIZED IN
COOLING MODE.
"RVS1" AND "RVS2" ARE NOT USED WITH WWC AND WWH MODELS.
16 AQUASTATS "TS-H" AND "TS-C" ARE NOT USED WHEN OPTIONAL FACTORY INSTALLED
TEMPERATURE CONTROLLER "TC" IS FURNISHED. TYPICAL AQUASTATS SHOWN.
AQUASTATS MAY BE SUPPLIED BY OTHERS OR ARE AVAILABLE AS AN OPTIONAL
ACCESSORY FROM THE FACTORY. MINIMUM PILOT DUTY RATING OF EACH POLE OF
AQUASTAT IS 24 VOLT-AMPERES @ 24 VOLTS AC WHEN CONNECTED AS SHOWN.
17
THIS WIRE CONNECTS DIRECTLY FROM TERMINAL S1 TO TERMINAL Y1 ON "TB1" WHEN
OPTIONAL TEMPERATURE CONTROLLER "TC" IS NOT FURNISHED.
18
THIS WIRE CONNECTS DIRECTLY FROM TERMINAL S2 TO TERMINAL Y2 ON "TB1" WHEN
OPTIONAL TEMPERATURE CONTROLLER "TC" IS NOT FURNISHED.
WHEN OPTIONAL TEMPERATURE CONTROLLER "TC" IS FURNISHED, INSTALLER MUST
19
PROGRAM CONTROLLER. REFER TO TEMPERATURE CONTROL INSTALLATION
INSTRUCTIONS.
WITH REVERSE-CYCLE WWR UNITS, PROGRAM CONTROLLER AS ONE STAGE
COOLING AND ONE STAGE HEATING. STAGE 1 IS THE COOLING STAGE AND STAGE 2 IS
THE HEATING STAGE.
INSTALL SENSOR ON THE WATER INLET PIPE (LOAD COIL).
20
CONDUCTOR "O" REQUIRED WITH WWR REVERSE CYCLE UNITS.
CONDUCTOR "O" NOT USED WITH WWC COOLING AND WWR HEATING UNITS.
21
"CHR" IS USED ONLY WITH "WWR" UNITS.
"CHR" IS NOT USED WITH "WWC" AND "WWH" UNITS.
22
COMPRESSOR RELAY CONTACTS ARE PROVIDED TO OPERATE AN EXTERNAL PILOT
DUTY LOAD (SUCH AS A PUMP RELAY COIL) WITH THE COMPRESSORS.
AN EXTERNAL LOAD POWERED BY TRANSFORMER "TR1" IN THE WW* UNIT MUST
NOT EXCEED 12 VA SEALED (96 VA INRUSH) @ 24 VOLTS AC.
EXTERNAL LOADS POWERED FROM AN EXTERNAL SOURCE ARE LIMITED TO
CLASS 2 CIRCUITS ONLY (30 VOLTS AC MAXIMUM). EXTERNAL LOAD
CHARACTERISTICS MUST NOT EXCEED 10 AMPS MAKE, 1 AMP BREAK. MAINTAIN
SEPARATION BETWEEN CLASS 2 CIRCUITS OF DIFFERENT SOURCES.
PROVIDE DISCONNECTING MEANS, EQUIPMENT GROUNDING, AND
OVERCURRENT PROTECTION AS REQUIRED.
WIRING DIAGRAM # 0962I-2633B, REV. B
WW* 120, 150, 180, 240, 300
PINK
RED
WHITE
YELLOW
IM 1072-1