Wiring - Bosch SST150-40 Installation And Operating Manual

5 Wiring

Wiring using boiler sensor:
1. For wiring using boiler sensor, see boiler installation
manual.
Indirect Water Heater Controlled Using Aquastat
and Zone Circulator / Valve:
1. Install Aquastat to tank. Aquastat control
(Honeywell L4006 or equivalent) can be ordered from
your local distributor.
2. Connect Aquastat to the zone controller for the Indirect
Water Heater Zone.
3. Adjust Aquastat to the desired temperature.
Figure 5-1 Wiring for zone control
Indirect Fired Water Heaters Installation and Operating Manual
TEMPERATURE
ADJUSTMENT
WIRE
CONNECTIONS
INDIRECT TANK
Installation & Operating Manual
Honeywell
L4006 or
equivalent
ZONE CONTROL BOX
ZONE CIRCULATOR
AQUASTAT
CONTROL
OR
ZONE VALVE
OR
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