18B. WIRING DIAGRAM: 24 VOLT THERMOSTAT OPERATION
(120V Thermostat - previous page)
Field installed option
Kit JS-0568-KT
RELAY
Maximum Power Flow = 21VA
Each tube heater requires 120V, 60 HZ electrical power sized for 145VA. The 24V/120V re-
lay switch shown above is an option (JS-0568-KT) that is field installed. Maximum power flow
for internal 24V burner components is 21VA.
The heater must be electrically grounded in accordance with the National Electrical Code.
ANSI / NFPA 70 or current Canadian Electrical code CSA C22.1.
A maximum night set-back of 9°F (5°C) is recommended for optimum economy and comfort.
To maintain satisfactory comfort levels do not turn off the heating system over night/weekends.
S100/ITB I&O Manual
34
IM101230
RD: JAN 2012
RL: 6B- BA