–8– Form
#43219000
Jan 09
Ground
Neutral
Hot
Fused
Disconnect
Switch
Thermostat
Service
Switch @
Heater
Service
Switch @
Heater
Heater
Junction
Box
Heater
Junction
Box
Continue To
Additional Heaters
Ground
Neutral
Hot
Fused
Disconnect
Switch
Thermostat
Service
Switch
@ Heater
Heater
Junction
Box
Continue To
Additional Heaters
Model No. Suffix: N5, L5
120 Volt Direct Spark Ignition
(Single Heater Per Thermostat)
Model No. Suffix: N5, L5
120 Volt Direct Spark Ignition
(Multiple Heaters Per Thermostat)
120V
120V
9) VENTILATION
This heater requires ventilation in the building to dilute the product of combustion and provide fresh air for efficient
combustion. Power ventilation is recommended, and the minimum vent flow required is as follows:
RSCA3 = 109 cfm
RSCA6 = 218 cfm
RSCA10 = 436 cfm
If gravity ventilation is used, the required square feet of inlet and outlet vent area (depending on height and temperature
difference) is as follows:
RSCA3 = 0.4 s/f
RSCA6 = 0.8 s/f
RSCA10 = 1.6 s/f
The General Ventilation Rules outlined in the ASHRAE GUIDE AND DATA BOOK should be observed when locating vents.
Exhaust vents must be located at the highest point above and in the vicinity of the heaters and the inlet nets must be located
below the level of the heaters.
10) LIGHTING AND SHUTDOWN INSTRUCTIONS
STANDING PILOT IGNITION SYSTEM (Ignition Suffix “1”)
1)
Turn the dial to “PILOT.” Press the dial in and light the pilot. Hold for 60 seconds and release.
2)
Turn the dial counterclockwise
4
to “ON.” Use this position for thermostat control Set the thermostat for desired
room temperature.
3)
If the heater does not light, shut off the gas completely for 5 minutes before attempting to relight.
4)
To shut down the heater, turn the dial clockwise
3
to “PILOT.” Depress the dial slightly and turn to “OFF.”
DIRECT SPARK IGNITION SYSTEM (Ignition Suffix “5”)
1)
Turn on gas supply.
2)
Set thermostat to call for heat.
3)
Ignition should occur immediately.
4)
If ignition fails, the unit will spark for approximately 21 seconds and go into safety lockout. Turn thermostat (or power)
off for 60 seconds to take out of lockout.
5)
If heater does not light, shut off gas completely for 5 minutes before attempting to relight.
6)
CAUTION: Heater must be grounded. Poor grounding will give nuisance lockouts, particularly during momentary power
interruptions.
7)
To shut down the heater, turn off the gas and the electrical supply.
NOTE: The lighting and shutdown instructions are also shown on the permanent nameplate attached to the heater.
