Greenheck DGK (468695) - Manual (Page 18)

18
1. Grounding Lug - Completes electrical circuit.
2. Motor Starter - 24 volt magnetic contacts for
starting motor, 3 phase motors have electronic
overload.
3. Control Transformer - Provides 24 volts for
controls.
4. Main Disconnect - On/Off switch, provides single
point power connection to unit.
5. Ignition Control - Monitors flame, shuts down unit
when unsafe conditions are detected.
6. Amplifier - Controls modulating valve; assures the
desired temperature is delivered.
7. High Limit - Prevents unit from discharging air
above a set point.
8. Heating Inlet Air Sensor - Ductstat that
automatically energizes burner when inlet air
temperature falls below set point.
ACCESS PANEL TO:
• BURNER,
• SPARK ROD
• FLAME ROD
AIRFLOW SWITCH
INLET AIR SENSOR
HIGH LIMIT
AMPLIFIER
IGNITION CONTROL
CONTACTOR
GOUNDING LUG
TRANSFORMER
BURNER MANUAL
SHUTOFF VALVE
COMBINATION
SHUT-OFF
VALVE/REGULATOR
GAS CONNECTION
MODULATING
VALVE
AIRFLOW TAP
AIRFLOW TAP
BURNER
VIEWPORT
1
2
3
4
6
7
8
5
Reference
Typical DGK-H15 Gas Train Layout – Less than 400 MBH and Control Center Layout
This is a typical gas train. The gas train in your unit may be different.
Model DGK Make-Up Air
®