TM 10-4520-259-13&P
1-14.
DIFFERENCES BETWEEN MODELS. Both types of heaters are based on the same design, however,
minor differences in the following component assemblies exist due to different heater applications:
Upper Manifold Assembly
Lower Manifold Assembly
Control Box Assembly
Exhaust Assembly
Burner Head Assembly
Blower Assembly
Pressure Relief Valve Assembly
Specific differences in these component assemblies are addressed as applicable throughout the manual.
Ignition transformers procured after 1992 operate on one phase, 110 V ac. In addition, a retrofit kit will modify
existing 208 V ac ignition transformers to 110 V ac.
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EQUIPMENT DATA.
M-80 and M-85 Water Heaters.
(1)
Water Heater.
Dimensions:
Length ...................................... 52 inches (132 cm)
Height....................................... 47 inches (112 cm)
Width........................................ 27 inches (69 cm)
Weight (approximate)....................... 465 pounds (211 Kg)
Capacity (Water) .............................. 23.7 gallons (89.7 liters)
(2)
Blower and Fuel Pump Motor.
Power Rating............................ 1/3 horsepower (249 W)
Motor Speed............................. 3450 rpm
(3)
Fuel Pump
Type ......................................... 2-stage gear
Pressure................................... 0-150 psi (0-1034 kPa)
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