Schwank STR-JZ - Manual (Page 34)

34
STR-JZ I&O Manual
IM090831
RD: AUG 2009
RL: 09A- BA
18. WIRING DIAGRAM: 24V OR 120 VOLT THERMOSTAT OPERATION
SINGLE HEATER PER THERMOSTAT
(Multiple Heaters per Thermostat—next page)
Maximum Power Flow = 21VA
1
3
2 4
Each tube heater requires 120V, 60 HZ electrical power sized for 145VA. The heater includes
a 24V/120V relay switch . 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.