Diagnostics - Brant Radiant Heaters DET3 Series Manual

4.0 Operation •

Diagnostics

Diagnostics
Lockout:
The controls will automatically lockout the heater system when an external or system fault occurs. There
are two types of lockout:
Soft Lockout: The heater will attempt to light three times. In the event of a failed attempt to light, (gas
pressure, valve, no flame sense etc.), the heater will enter a soft lockout period for 15
minutes and then attempt to light three more times before entering Hard Lockout mode.
Hard Lockout: If proof of flame is not established, a component failure occurs or blockages are evident,
the heater will enter hard lockout. If lockout occurs, the control can be reset by briefly
interrupting the power source.
Figure 4.1 • Operational Indicator Lights
• Operational Indicator Lights
HOT
120V
NEUTRAL
EARTH
- 120V HEATER INPUT -
HIGH
24V
LOW
NEUTRAL
- 24V HEATER INPUT -
H
HIGH
FIRE
Light 1
Indicates High
Fire Mode
54
DET3 Series