Reznor XE Unit Installation Manual - Manual (Page 21)

Form I-XE/CRGB/RPB, Page 20
Model CRGB , Outdoor, Gravity-Vented Furnace with Standard Single-Stage Gas Valve
Typical Wiring Diagrams (cont'd)
5
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
8
8 8 10 10
12 6 6
4
11
11
Y Y Y Y Y
BL
BK
BL BL R R R
BL
BK Y
7
7
7
BK BR 25
H TD H
BR
GRND.
BR
RECYCLE
G67BG-5
OR
LOCKOUT
IGNITION
CHASSIS GRND.
CONTROLLER
G770NGC-4
1
3
2
4
W G
PROBE
GRND
IGNITOR
STRIP
FLAME SENSING
BR
BK
BL
7
17
FAN TD
HEATER
BR
CR
R 17 BR
7 CONTACTOR COIL
BLOWER MOTOR
7 - 8 - 9
7 BR
CRGB SERIES AH2 OR AH3-AG1-CL1 DWG. #B-225510
RSM
24V
LINE V
R
MAIN
PILOT
TRANSFORMER
Y BK
LIMIT
AUTO RESET
REVERSE FLOW UNIT AUTOMATIC
LIMIT CONTROL
SET
ANT
. A
T
0.8 AMPS
OPT
. SINGLE ST
AGE
THERMOST
AT R
W
CONTROL
40 VA
L1 L2
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
225510
PV
PILOT
MV
PV-MV
MAIN
REDUNDANT
GAS V
A
LV
E
HONEYWELL
(SEE NOTES)
DISCONNECT SWITCH
CONTACTS
FAN TD
1 3
REDUNDANT
GAS V
A LV
E
AL
TERNA
TE W
.R. OR ROBER
TSHA
W
BL
P
BK
BR
MAIN
PILOT
M
C
WHITE - W
PURPLE - PR
BLUE - BL
GREEN - G
YELLOW - Y
ORANGE - O
RED - R
BROWN - BR
BLACK - BK
WIRING CODE
TOTAL WIRE MINIMUM RECOMMENDED
LENGTH WIRE SIZE
150 FEET #18 GA.
250 FEET #16 GA.
350 FEET #14 GA.
FIELD WIRING
ON 115/460V. UNITS THE CONTROL TRANSFORMER IS A SINGLE VOLTAGE PRIMARY.
9. ON 208/230V. UNITS THE CONTROL TRANSFORMER HAS A DUAL VOLTAGE PRIMARY.
7. USE #12 GA. WIRE FOR LINE AND MOTOR WIRING ON SINGLE PHASE UNIT.
6. USE #14 GA. WIRE FOR LINE AND MOTOR WIRING ON 3 PHASE UNIT.
TO PREVENT VOLTAGE DROP BEYOND FIVE PERCENT OF SUPPLY LINE VOLTAGE.
5. LINE AND BLOWER MOTOR BRANCH CIRCUIT WIRE SIZED SHOULD BE OF A SIZE
A TEMPERATURE RATING OF AT LEAST 105° C., EXCEPT FOR
MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING
4. CAUTION: IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE
3. DOTTED WIRING AND THE FOLLOWING CONTROLS ARE SUPPLIED AND INSTALLED
2. THE FOLLOWING CONTROLS ARE SUPPLIED AS OPTIONAL EQUIPMENT:
1. 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
SENSOR LEAD WIRE WHICH MUST BE 150° C.
8. USE #18 GA. WIRE FOR 24 VOLT CONTROL WIRING ON UNIT.
BY OTHERS: NONE
NONE
NOTES
USE DUAL ELEMENTS TIME DELAY FUSES AND SIZE ACCORDING TO 1.25
TIMES THE MAXIMUM TOTAL INPUT AMPS.
10. WHEN PROVIDING OR REPLACING FUSES IN THE FUSIBLE DISCONNECT SWITCH
11. DISCONNECT SWITCH IS FIELD FURNISHED OR AVAILABLE FROM FACTORY AS AN OPTION.
OPERATING SEQUENCE
1. SET THERMOSTAT AT LOWEST TEMPERATURE.
2. TURN ON POWER AND MANUAL GAS VALVE TO UNIT.
(B) BLOWER MOTOR OPERATES FROM FAN TIME DELAY.
(A) FIRING RATE IS CONTROLLED BY THE THERMOSTAT.
LIGHTING INSTRUCTIONS).
AND MUST BE RESET BY INTERRUPTING POWER TO CONTROL CIRCUIT (SEE
NOT ESTABLISHED WITHIN 120 SECONDS (APPROX.) UNIT LOCKS OUT
ON UNIT EQUIPPED WITH G770NGC-4 LOCKOUT CONTROL, IF PILOT IS
SAFETY SWITCH CLOSES THE MAIN VALVE AND RECYCLES THE SPARK GAP.
2. IF THE FLAME IS EXTINGUISHED DURING MAIN BURNER OPERATION THE
THE MAIN GAS IGNITES AND THE UNIT FIRES AT FULL RATE.
DE-ENERGIZES THE SPARK GAP AND ENERGIZES THE MAIN VALVE.
SAFETY SWITCH PORTION OF THE CONTROL. THE SWITCH ACTION
PROVES THE PRESENCE OF THE PILOT FLAME AND ENERGIZED THE
A PILOT FLAME ON EACH OPERATING CYCLE. THE SENSING PROBE
THE PILOT GAS VALVE AND SPARK GAP ARE ENERGIZED TO PRODUCE
1. ON A CALL FOR HEAT BY THE THERMOSTAT
FIRING SEQUENCE:
3. SET THERMOSTAT AT DESIRED TEMPERATURE.
4. THERMOSTAT AT LOWEST TEMPERATURE FOR SHUTDOWN.
(A) BLOWER MOTOR REMAINS ON AS DETERMINED BY FAN TIME DELAY.
TERMINAL BLOCK -- HEATER COMPARTMENT
TERMINAL BLOCK -- BLOWER COMPARTMENT
4, 6, 7, 8, 10 & 11
6, 7, 8, 10, 12,
L1 & L2
OPTIONAL FIELD WIRING
OPTIONAL FACTORY WIRING
FACTORY WIRING
FIELD WIRING