Legend - Daikin WRA Installation And Maintenance Data

Legend

208-230/60/3, Unit Sizes 036, 048, 060 and 072
FUNCTIONAL LINE
DESIGNATION NUMBER
CL 17 OPTIONAL INDICATOR LIGHT - COMPRESSOR ON
CC 32 COMPRESSOR CONTACTOR
CCH 10 CRANKCASE HEATER
CCM 26 COMPRESSOR CONTROL MODULE
CHR 41
CHANGEOVER RELAY (WHEN USED)
CM 2 COMPRESSOR
EGL 4 EQUIPMENT GROUNDING LUG(S)
F1,F2 6,4 FUSING (WHEN USED) - SEE FUSE TABLE
FL 37 OPTIONAL INDICATOR LIGHT - FAULT
FS-L 28 OPTIONAL FLOW PROVING SWITCH – LOAD COIL
FS-S 28
OPTIONAL FLOW PROVING SWITCH – SOURCE COIL
HP 30 HIGH DISCHARGE PRESSURE CUTOUT SWITCH
HRPR 18 HEAT RECOVERY PUMP RELAY (WHEN USED)
IR 39 INTERLOCK RELAY
LP1 30
LOW SUCTION PRESSURE CUTOUT SWITCH NO. 1
LP2 26 LOW SUCTION PRESSURE CUTOUT SWITCH NO. 2
LTC 20,30 LOW FLUID TEMPERATURE CUTOUT MODULE
PCT 18 WASTE HEAT RECOVERY PUMP CONTROL THERMOSTAT (WHEN USED)
PM 8,14
OPTIONAL POWER MONITOR
RVS 15
REVERSING VALVE SOLENOID (WHEN USED)
TB1 + TERMINAL BOARD NO. 1
TB2 46,47 TERMINAL BOARD NO. 2
TB3 26 TERMINAL BOARD NO. 3
TB4 4,6 TERMINAL BOARD NO. 4
TR 13 CONTROL TRANSFORMER
TC 23 TEMPERATURE CONTROLLER (OPTIONAL)
TS-C 23 AQUASTAT – COOLING (WHEN USED)
TS-H 22 AQUASTAT – HEATING (WHEN USED)
WHR 5 OPTIONAL WASTE HEAT RECOVERY PUMP
WTL 4
WATER TEMPERATURE LIMIT THERMOSTAT (WHEN USED)
# SEE LINE NUMBER TO THE RIGHT OF CONTACTOR COIL ON WIRING DIAGRAM.
+ MULTIPLE LINE NUMBERS.
FUSE NO. CLASS
F1,F2 +
+ SUPPLEMENTARY TYPE; USE FERRAZ SHAWMUT
CATALOG NO. OTM 1.
1 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.
THE FOLLOWING COMPONENTS ARE USED ONLY WHEN WASTE HEAT RECOVERY
2
(DESUPERHEATER) OPTION IS FURNISHED: "F1", "F2", "HRPR", "PCT", "WHR", AND "WTL".
3
TRANSFORMER MAY HAVE TAPS FOR 120V, 208V, 240V, OR 480V SYSTEM POWER
SUPPLY. 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.
4 WHEN "PM" IS NOT USED, THIS WIRE CONNECTS DIRECTLY TO TERMINAL R ON "TB1".
5 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.
6 "RVS" IS USED ONLY WITH WWR MODELS AND IS ENERGIZED IN COOLING MODE (LOAD
COIL IS HEAT SOURCE, SOURCE COIL IS HEAT SINK).
"RVS" IS NOT USED WITH WWC AND WWH MODELS.
7 SEE FIGURE 1 ON SHEET 2 OF THIS DRAWING FOR BOARD LAYOUT, SENSOR
LOCATIONS, TEMPERATURE SETTING NOTE, AND SENSOR RESISTANCE VERSUS
TEMPERATURE GRAPH.
8
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.
9 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.
IM 1072-1
LEGEND
DESCRIPTION
FUSE TABLE
VOLTS AC AMPERES
1
250
Water to Water Source Heat Pumps
BK: BLACK
BL: BLUE
BR: BROWN
G: GREEN
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.
ASTERISK AFTER DASH FOLLOWING COLOR
CODE INDICATES REFERRAL TO
COMPRESSOR WIRE SIZE TABLE.
TIME DELAY
NO
10
THIS WIRE CONNECTS DIRECTLY FROM TERMINAL S TO TERMINAL Y ON "TB1" WHEN
OPTIONAL TEMPERATURE CONTROLLER "TC" IS NOT FURNISHED.
11
WHEN OPTIONAL TEMPERATURE CONTROLLER "TC" IS FURNISHED, INSTALLER MUST
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 @ WATER INLET PIPE (LOAD COIL).
12 SEE FIGURE 2 ON SHEET 3 OF THIS DRAWING FOR COMPRESSOR CONTROL MODULE
OPERATION.
13 WIRED AS SHOWN FOR OPEN LOOP OR HIGH TEMPERATURE CLOSED LOOP
APPLICATIONS. FOR LOW TEMPERATURE CLOSED LOOP APPLICATIONS, MOVE THIS
WIRE FROM TERMINAL 6 TO TERMINAL 7 ON "TB3".
14 WHEN "FS-L" AND "FS-S" ARE NOT USED, THIS WIRE CONNECTS DIRECTLY TO
TERMINAL Y OF "CCM".
15 WHEN OPTIONAL "LTC" IS NOT USED, THESE TWO WIRES ARE SPLICED TOGETHER.
16 CONDUCTOR "O" REQUIRED WITH WWR REVERSE CYCLE UNITS.
CONDUCTOR "O" NOT USED WITH WWC COOLING AND WWR HEATING UNITS.
17
"CHR" IS USED ONLY WITH "WWR" UNITS.
"CHR" IS NOT USED WITH "WWC" AND "WWH" UNITS.
18 INTERLOCK 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 "TR" 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
WIRE COLOR LEGEND
PK: PINK
PR: PURPLE
R: RED
W: WHITE
Y: YELLOW
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)
COIL
NORMALLY OPEN CONTACTS
NORMALLY CLOSED CONTACTS
IDENTIFIABLE TERMINAL
NON-IDENTIFIABLE TERMINAL,
OTHER WIRE JUNCTIONS,
INCLUDING SCHEMATIC
WIRING DIAGRAM
WW* 036, 048, 060, 072
THREE PHASE
0962I-2632, REV.B
Page 19 of 44