Model TFZU 12 kW Heater

TM 55-1915-200-10

provides 280F temperature rise across the heating

conditioned is blown across the chilled water coil and

element. Both stages, 22 kW, provide an 870F rise.

reduced in temperature approximately 16 .

The

One 22 kW heater supplies warm air to all passageway

blower assembly provides the moving force for

areas. The other 22 kW heater supplies warm air to the

circulating the air through the fan coil from the

galley.

conditioned space.

These units contain heating

elements which heat circulated air to provide a

1-10.2.6. Model TFZU 12 kW Heater. This is the

temperature rise of approximately 28 .

heating source in the duct around the exhaust hood in

1-10.2.13. 42DD-4 Air Handling Unit. The control room

the galley. A wall-mounted thermostat energizes the

first stage when the galley temperature falls below the

air handling unit is a straight cooling unit which provides

thermostat set point.

A duct-mounted thermostat

air conditioning for a specific area. Chilled water is

energizes the second stage when the ambient

pumped through the coil of the air handling unit from the

temperature entering the heater falls below 35 . The

chilled water piping system at approximately 40 .

first stage, 6 kW provides a 32 temperature rise

Warm air from the space to be conditioned is blown

across the heating element. Both stages, 12 kW,

over the coil and reduced in temperature approximately

provide a 64 rise across the elements.

16 . The water flow through the cooling coil is

controlled by a three way water regulating valve.

1-10.2.7. Model 44-12-DG2 Fan Motor. These fan

1-10.2.14. Electric Space Heaters.

These space

motors provide ventilation to the main deck supply,

shaft passageway, work shop and machine spaces.

heaters provide forced air heating. These heaters use

motor and fan blades to force air across the electric

1-10.2.8. Model 38-20-WH3 Fan Motor. This fan motor

heating element to circulate the warm air. With the

provides ventilation for the bow thruster room.

power applied and the thermostat set to the desired

temperature the unit cycles automatically.

1-10.2.9. Model 44-16-DK2 Fan Motor. This fan motor

provides ventilation for the emergency generator room.

1-10.2.15. Model TFZU-3 kW Heater. This heater

provides pilothouse window de-icing and defrosting. It

1-10.2.10. Model 52-16-T12 Fan Motor. This fan motor

also supplements the pilothouse heating system. The

provides ventilation for the galley exhaust.

de-icer/defroster is switch controlled. For supplemental

heating, this unit is thermostatically controlled. Forced

warmed air is supplied to each window on the forward

1-10.2.11. Model 52-12-TF2 Fan Motor. These fan

bulkhead of the pilothouse from a register located in the

motors provide ventilation for the passageway and head

overhead of the window frame. When either the manual

exhaust and the galley.

switch or thermostat is energized, the blower associated

with the heater starts and forces air over the 3 kW

1-10.2.12. 42VF and 42CG Series Fan Coil Units. The

heating element. The heating element energizes when

fan coil units provide cooling and heating to the spaces

it senses the air flow, and increases the temperature of

in which they are located. Chilled water pumped from

the air flowing over the coils. Hot air is then forced out

the chiller package enters the coil of these units at

the

registers

over

the

windows.

approximately 40 . Warm air from the space to be

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