Webasto BCT010300C Repair Manual download pdf (Page 8)

General Description

Webasto Product N.A., Inc. 6 www.techwebasto.com

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2.3 Air-handler Assembly

The air-handler assembly is mounted inside the sleeper

compartment. The air-handler is comprised of a liquid to

air heat exchanger, four air circulation fans, cover with

directional louvers, and the system control module with

operator interface during discharge.

Figure 4. Air-handler Assembly

2.4 Cold Transfer System

The cold transfer system is comprised of a circulation

pump, coolant hose, coolant reservoir and a transfer

medium of 50/50 premixed

water and glycol antifreeze

mixture.

The system is active during system discharge. The

temperature control knob of the control module is used

to adjust bunk temperature.

A temperature sensor is mounted on the control module

circuit board to monitor the temperature level in the

bunk. The control module switches the circulation pump

on and off according to the cooling requirements.

Figure 5. Cold Transfer System

2.5 DC to AC Power Inverter

A power inverter to change 12 volts DC vehicle power

into 110 volts AC is utilized to supply power to drive the

electric refrigeration compressor.

Figure 6. Power Inverter

2.6 Control Module

The control module is central to ensuring the correct

function of the BlueCool Truck System.

During the charging mode (vehicle in motion), the

control module monitors and controls the refrigeration

process and the freezing of the freeze medium contained

within the cold storage core. A digital core temperature

sensor is an integral part of the control module’s ability to

monitor the system.

During the discharge mode (bunk cooling), the control

module allows manual control of the temperature output

and the fan speed. Temperature is monitored via a

sensor mounted on the control module’s circuit board.

Temperature is regulated by controlling the circulation

pump.

Figure 7. Control Module with Plate and Knobs Shown

1 – Coolant Reservoir

2 – Tee Connector (5/8”x 5/8”x 5/8”)

3 – Reducer (3/4”x 5/8”)

4 – Coolant Circulating Pump

5 – Inlet to Cold Storage Unit (3/4”)

6 – Outlet from Cold Storage Unit (5/8”)

7 – Cold Coolant Supply Hose

8 – Air Handler Heat Exchanger

9 – Warm Coolant Return Hose

OWER

NVERTER

POWER

OFF

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Webasto BCT010300C Repair Manual Page 8

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