Reznor RPB Unit Installation Manual - Manual (Page 26)

Form I-RPB, P/N 131782 R11, Page 26
7.0 Electrical Supply and Connections (cont'd)
7.3 Typical Wiring Diagrams (cont'd) (Refer to the diagram supplied with the furnace for
alternate controls or optional equipment details.)
& CAPACITOR
L1 L2
L1 F L2
8 10 10 BL R R R
BK BK BK BK BK W
CR
R 17 BR 7
TERMINAL BLOCK --
HEATER COMPARTMENT
TERMINAL BLOCK --
BLOWER COMPARTMENT
11, 12, 13, F, L1 & L2
1, 2, 4, 6, 7, 8, 10,
12, 13, L1 & L2
2, 6, 7, 8, 10,
RPB SERIES AH2 OR AH3-AG2-CL22 DWG. #B-275073 REV. #1 IJB
OPTIONAL FIELD WIRING
OPTIONAL FACTORY WIRING
FACTORY WIRING
FIELD WIRING
TOTAL WIRE MINIMUM RECOMMENDED
LENGTH WIRE SIZE
150 FEET #18 GA.
250 FEET #16 GA.
350 FEET #14 GA.
FIELD WIRING
BLOWER MOTOR
CONTACTOR COIL
VENTER MOTOR
8 BL
COMBUSTION
PRESSURE
SWITCH
12
1
2 2 6 6
4
11
6
Y
Y W
BK
Y Y Y Y Y
W
7
7
7
BK BR 24
H TD H
BR
BR
W 22
H TD H
BR 7
BK
BL
W
7
TIME DELAY
RELAY COIL
13 - 28
17
FAN TD
HEATER
BR
R R
LOW STAGE
PILOT
HIGH STAGE
12
Y
7 - 8 - 9
1/60 OR 3/60
LINE
GRD
G
R OR W
R OR BK
R
PROTECTED
BLOWER
MOTOR
INTERNALLY
CONTACTOR
BLOWER MOTOR
CONTACTS
L2
L3
L1
W BK BK
T1
T2
T3
13
O
13
LIMIT
AUTO RESET
REVERSE FLOW
UNIT AUTOMATIC
LIMIT CONTROL
COM
NC
NO
BK Y
40 VA. CONTROL
TRANSFORMER
24V
BK
R
LINE VOLT
BR
Y
BL BR 7
L2 L1
RH
TWO
ST
A
GE THERMOST
AT
OPTIONAL
W2
(ADD RH-RC
W1
RC
JUMPER)
HIGH S
TG
HI
PV
PIL
O
T
STG LO
W
C
MV
REDUND
ANT
GAS V
AL
VE
HONE
YWELL T
WO
ST
A
GE
PIL
O
T
AL
TERNA
TE
W
.R. T
WO
ST
A
GE
REDUND
ANT
GAS V
AL
VE
R
BL
3
HIGH S
TG
4
BK
STG
2
LO
W
1
BR
(SEE NOTES)
DISCONNECT SWITCH
8 BL
BK
CONTACTS
FAN TD
1 3
WIRING CODE
BLACK - BK
BROWN - BR
ORANGE - O
YELLOW - Y
GREEN - G
BLUE - BL
PURPLE - PR
WHITE - W
RED - R
C 7
Y
BL
IGNITION
CONTROLLER PROBE
GND
SPARK
FLAME SENSING
MV/PV
MV
SENSE
TH
PV
24V GND
BR
GND BURNER
G
BURNER
GROUND
BK
ON 115/460V. UNITS THE CONTROL TRANSFORMER IS A SINGLE VOLTAGE PRIMARY.
- ON 208/230V. UNITS THE CONTROL TRANSFORMER HAS A DUAL VOLTAGE PRIMARY.
- USE #12 GA. WIRE FOR LINE AND MOTOR WIRING ON SINGLE PHASE UNIT.
- USE #14 GA. WIRE FOR LINE AND MOTOR WIRING ON THREE PHASE UNIT.
TO PREVENT VOLTAGE DROP BEYOND FIVE PERCENT OF SUPPLY LINE VOLTAGE.
- LINE AND BLOWER MOTOR BRANCH CIRCUIT WIRE SIZE SHOULD BE OF A SIZE
A TEMPERATURE RATING OF AT LEAST 105 DEGREES C., EXCEPT FOR ENERGY
MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING
- CAUTION: IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE
- DOTTED WIRING AND THE FOLLOWING CONTROLS ARE SUPPLIED AND INSTALLED
- THE FOLLOWING CONTROLS ARE SUPPLIED AS OPTIONAL EQUIPMENT:
- THE FOLLOWING CONTROLS ARE SUPPLIED BY REZNOR FOR FIELD INSTALLATION:
FOR 115/460V. UNITS USE BLACK AND YELLOW LEADS.
FOR 208V. UNITS USE BLACK AND RED LEADS (CAP YELLOW).
FOR 230V. UNITS USE BLACK AND YELLOW LEADS (CAP RED).
THERMOSTAT
CUTOFF OR SENSOR LEAD WIRE WHICH MUST BE 150 DEGREES C.
- USE #18 GA. WIRE FOR 24 VOLT CONTROL WIRING ON UNIT.
BY OTHERS: NONE
NONE
NOTE
USE DUAL ELEMENTS TIME DELAY FUSES AND SIZE ACCORDING TO 1.25
TIMES THE MAXIMUM TOTAL INPUT AMPS.
- WHEN PROVIDING OR REPLACING FUSES IN THE FUSIBLE DISCONNECT SWITCH
- DISCONNECT SWITCH IS FIELD FURNISHED OR AVAILABLE FROM FACTORY AS AN OPTION.
OPERATING SEQUENCE
- SET THERMOSTAT SYSTEM SWITCH AT "OFF" POSITION, FAN SWITCH AT "AUTO" POSITION.
- TURN ON POWER AND MANUAL GAS VALVE TO UNIT.
- SET THERMOSTAT SYSTEM SWITCH AT "OFF" POSITION, FAN SWITCH AT "AUTO" POSITION FOR SHUTDOWN.
- SET THERMOSTAT SYSTEM SWITCH AT "AUTO" POSITION, FAN SWITCH AT "AUTO" POSITION.
- FIRING RATE IS CONTROLLED BY THE THERMOSTAT.
- BLOWER MOTOR OPERATES FROM FAN TIME DELAY.
- BLOWER MOTOR REMAINS ON AS DETERMINED BY FAN TIME DELAY.
FIRING SEQUENCE:
- ON A CALL FOR HEAT BY THE LOW STAGE OF THERMOSTAT.
- THE VENTER MOTOR IS ENERGIZED AFTER A 15 SECOND (APPROX.)
TIME DELAY.
- VENTER FLOW SWITCH SWITCHES FROM N.C. TO N.O. CONTACTS ENERGIZING
FLAME ON EACH OPERATING CYCLE. THE SENSING PROBE PROVES THE
PRESENCE OF THE PILOT FLAME AND ENERGIZES THE SAFETY SWITCH
PORTION OF THE CONTROL. THE SWITCH ACTION DE-ENERGIZES THE
SPARK GAP AND ENERGIZES THE MAIN VALVE. THE MAIN GAS IGNITES
AND UNIT FIRES AT LOW RATE.
- ON A CALL FOR HEAT BY THE HIGH STAGE OF THE THERMOSTAT, THE
UNIT FIRES AT FULL RATE.
THE PILOT GAS VALVE AND SPARK GAP TO PRODUCE A PILOT
- IF THE FLAME IS EXTINGUISHED DURING MAIN BURNER OPERATION,
THE SAFETY SWITCH CLOSES THE MAIN VALVE AND RECYCLES THE
SPARK GAP.
ON UNITS EQUIPPED WITH LOCKOUT CONTROL, IF PILOT IS NOT
ESTABLISHED WITHIN 120 SEC. THE UNIT LOCKS OUT FOR ONE
HOUR, UNLESS IT IS RESET BY INTERRUPTING POWER TO
THE CONTROL CIRCUIT. (SEE LIGHTING INSTRUCTIONS)
M1(4) M2(5)
RELAY CONTACTS
VENTER TIME DELAY
M3(1) M4(3)
VENTER TIME DELAY
RELAY CONTACTS
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31 31
32
33
FIGURE 28 - Typical Wiring Diagram for Model RPB, Outdoor, Power-Vented Furnace with Two-
Stage Gas Valve