Installation manual

PART 8: FIELD WIRING (CONTINUED)
MOD CON VWH Cascade Master
Fig. 8-3 LP-248-VWH Rev. 7/17/09
NOTE:
You must place the
Cascade Master
label (included in
shipping envelope)
on top of the
Standard Mod Con
Control
GAS-FIRED HOT WATER SUPPLY BOILER Boiler Manual
49
M. MODCON VWH CASCADE MASTER
PUMP AND SENSOR WIRING
1. Place the Cascade Master Overlay Sticker
onto the field connection board on the boiler
designated as the Cascade Master
2. If it is desired to have the boiler control the
boiler pump, Connect the boiler pump to the
BOILER HOT, BOILER NEUT, BOILER GND
terminals
3. Connect the System sensor to the terminals
marked SYS SENSOR
4. Do not connect anything to the OUTDOOR
SENS or THERMOSTAT terminals
5. If 0–10 volt input is used, connect to marked
terminals.