LAARS HWG-M2-250 - Installation, Operation and Maintenance Instructions - Manual (Page 18)

Page 18
LAARS Heating Systems
SECTION 7.
Replacement Parts List
Note: Reference page 15 for electrical components
Figure 19. Control box.
(1) Thermostatic Valve
(2) Circulator
(3) Mixer Tube
(4) Exhaust Pipe
(5) Blower
(6) Gas Valve
(7) Burner
(8) Economizer
(9) Combustion Coil
(10) Water Inlet from Tank
(11) Hot Water Outlet to Tank
(12) Air Vent
Figure 20. Assembly view of the unit.
Part Number Description
2400-322 Gasket Kit
2400-079 Blower Assembly (#5)
2400-310 Blower Assembly (HWG-250)
2400-086 Combustion Coil Assembly (#9)
2400-082 Flame Holder (#7)
2400-308 Flame Holder (HWG-250)
2400-286 Ignitor
2400-088 Capacitor, Motor Starter
2400-224 Control Board
2400-014 Gas Valve, Neg. Pres. (#6)
2400-015 Gas Valve, Neg. Pres. (HWG-250)
2400-106 Pressure Diff. Switch (HWG-250)
2400-058 Intake / Exhaust TCO
2400-057 Operating Limit
2400-054 Safety Limit
2400-062 Time Dealy Relay
2400-130 Thermostat Kit (140°F) (#1)
2400-006 Transformer
2400-094 Pressure Relief Valve (150 psi)
2400-095 P.R. Valve (250 only) (150 psi)
2400-090 Pump, Grundfos Up 26-99BF (#2)
2400-104 Exhaust Terminal
2400-102 Intake Terminal
2400-100 Wall Flange