Aiko CTH3-115, CTH3-150, CTH3-80, CTH3-200 service manual Thermostat, modulating

SECTION 10: WIRING

FIGURE 29: Modulating Thermostat Wiring Diagram (LonWorks® [4-20 mA] optional)

NOTE: 1. For non-communicating thermostats without LonWorks® bus, thermostat terminals marked "EB" will be marked "_____" and no LonWorks® bus communication wires are used.

* Separate on/off switch is optional for "satellite" heaters (install at user level).

On/Off switch is used to disable heater operation or reset a heater that is in "lockout" mode. If on/off switch is not desired, leave jumper wire between R and W terminals in place.

Description	Part Number
Thermostat, modulating	90425105
Thermostat, modulating LonWorks®	90425104

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