23. Wiring Diagrams (cont’d)
FIGURE 15B - Typical Wiring Diagram for Model UDAP or Model UDAS, Single Stage with Optional Air Recirculation
| FACTORY WIRING |
| FIELD WIRING |
| OPTIONAL FACTORY |
STRIP | WIRING |
WIRE NUT | |
TERMINAL |
|
G |
|
30 VA
SYSTEM TRANSFORMER
| Y |
R | 115/208/230 VOLT |
24V | |
BR |
|
| BK |
| SW1 |
W
LINE/1/60
SWITCH | BK |
ONLY) | |
DISCONNECT | BK |
| (UDAS |
G
G
G
GRD
SCREW
THERMOSTAT NOTES #8 AND #9)
W1
G
W2
| PR | Y | ||
W1 | Y | G | ||
|
|
|
SEC COM | L1 NEUTRAL NEUTRAL | L1 |
NEUTRAL | W |
|
|
|
|
| |
|
| FAN MOTOR | |
EAC/BLO | BK | BK | W |
|
|
|
(OPT CL18) T874F Q674C SUBBASE (SEE
RH
RC
|
|
|
|
| W | |
|
|
|
|
|
| |
|
| DOOR INTERLOCK |
|
|
| |
| R | (UDAS ONLY) | R |
| ||
R |
|
| R | |||
|
|
|
|
| ||
|
|
|
|
| C | |
|
|
|
|
|
| |
W2 |
| LIMIT CONTROL |
|
| ||
| R | R |
|
| ||
|
| R | R |
|
| |
|
| FLAME ROLLOUT |
|
|
| |
| (MODELS |
|
|
| ||
|
|
|
| Y |
| |
|
|
|
|
|
| |
|
|
| PRESSURE SWITCH |
| ||
|
|
| Y | Y |
| |
|
|
|
|
|
3.0 AMP | ATO OR ATC FUSE |
| LED FLASH CODES |
| GREEN LED |
STEADY ON | NORMAL OPERATION NO CALL FOR HEAT |
FAST FLASH | NORMAL OPERATION CALL FOR HEAT |
1 FLASH | IN LOCKOUT FROM FAILED IGNITIONS OR FLAME LOSSES |
2 FLASH | PRESSURE SWITCH DOES NOT CLOSE WITHIN 30 SECONDS |
| OF VENTER ENERGIZED |
3 FLASH | LIMIT SWITCH OR ROLLOUT SWITCH OPEN |
4 FLASH | PRESSURE SWITCH IS CLOSED BEFORE VENTER IS |
| ENERGIZED |
STEADY OFF | INTERNAL CONTROL FAULT OR NO POWER |
| YELLOW LED |
STEADY ON | FLAME SENSED |
SLOW FLASH | WEAK FLAME |
FAST FLASH | UNDESIRED FLAME (VALVE OPEN & NO CALL FOR HEAT) |
G
BR | BR/W |
CAPACITOR (SEE NOTE #6)
| BL | FAN | ||
|
| |||
GAS VALVE |
| TIME | ||
|
| |||
BL | BR | 90 | ||
| ||||
|
|
| 120 | |
FLAME |
| 160 | ||
R | 180 | |||
ELECTRODE |
| |||
|
|
| ||
| BR |
| ||
|
|
| ||
FLAME |
|
|
| |
GROUND |
|
|
|
OPERATING SEQUENCE
1. | SET THERMOSTAT AT LOWEST SETTING, FAN SWITCH AT "AUTO" POSITION. |
2. TURN ON MANUAL GAS VALVE. |
OFF DELAY | ||
OFF |
| ON |
| ||
OFF |
| OFF |
ON |
| OFF |
ON |
| ON |
|
|
|
DSI CONTROL
TEST | IND | BK |
|
| |
|
|
|
| VENTER | |
|
|
|
| MOTOR | |
FLAME | OK | NEUTRAL | W | W | BK |
LED | LED | ||||
Y | G |
|
|
| G |
|
|
|
| ||
|
|
|
| BR/W | BR |
|
| SPARK |
| CAPACITOR | |
|
| TRANSFORMER | |||
|
|
|
| (SEE NOTE #7) |
SPARK GAP
FIELD CONTROL WIRING
3. | TURN ON POWER TO UNIT. |
4. | SET THERMOSTAT AT DESIRED SETTING. |
5. | LOW STAGE OF THERMOSTAT CALLS FOR HEAT, ENERGIZING THE FAN MOTOR. |
6. | HIGH STAGE OF THERMOSTAT CALLS FOR HEAT, ENERGIZING THE VENTER MOTOR. |
7. | VENTER PRESSURE SWITCH CLOSES, FIRING UNIT AT FULL RATE. |
8. | SET FAN SWITCH AT "ON" POSITION FOR CONTINUOUS FAN OPERATION. |
9. | IF THE FLAME IS EXTINGUISHED DURING MAIN BURNER OPERATION, |
| THE INTEGRATED CONTROL SYSTEM CLOSES THE MAIN VALVE AND |
| MUST BE RESET BY INTERRUPTING POWER TO THE CONTROL CIRCUIT |
| (SEE LIGHTING INSTRUCTIONS). |
NOTES
1.THE FOLLOWING CONTROLS ARE FIELD INSTALLED OPTIONS: THERMOSTAT
2.DOTTED WIRING INSTALLED BY OTHERS.
3.CAUTION: IF ANY OF THE ORIGINAL WIRING AS SUPPLIED WITH THE
APPLIANCE MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A TEMPERATURE RATING OF AT LEAST 105° C. EXCEPT FOR SENSOR LEAD WIRE, FLAME ROLLOUT AND LIMIT WIRING WHICH MUST BE 150° C.
4.USE 18 GA. WIRE FOR ALL WIRING ON THE UNIT.
5.LINE AND FAN MOTOR BRANCH WIRE SIZES SHOULD BE OF A SIZE TO PREVENT VOLTAGE DROPS BEYOND 5% OF SUPPLY LINE VOLTAGE.
6.CAPACITOR IS REMOTE MOUNTED AND INCLUDED ONLY ON 115V MODELS
7.CAPACITOR IS REMOTE MOUNTED AND INCLUDED ONLY ON MODELS 150 - 400.
8.SET THERMOSTAT SECOND STAGE ANTICIPATOR AT 0.6 AMPS. AND FIRST STAGE ANTICIPATOR AT MINIMUM.
9.JUMPER THERMOSTAT TERMINALS G TO W1 AND RH TO RC IF FAN CONTROL FROM THERMOSTAT FAN SWITCH IS DESIRED.
TOTAL WIRE |
| DISTANCE FROM |
LENGTH |
| UNIT TO CONTROL |
|
|
|
150' | 75' | |
250' | 125' | |
350' | 175' |
WIRING CODE
BLACK - BK
BROWN - BR
RED - R
ORANGE - O
YELLOW - Y
GREEN - G
BLUE - BL
PURPLE - PR
WHITE - W
UDAP & UDAS SERIES
WD# 185306 REV#2
MIN. RECOMMENDED
WIRE GAUGE
#18 GA. WIRE #16 GA. WIRE #14 GA. WIRE
Form