SuperSnow KX-450K User manual

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Installation Manual
KX-450K

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Table of contents
1、Installation Instruction.................................................................................................................................................................................................3
2、Check fitting kit to make sure all parts and drawing are present..............................................................................................................5
3、Preparation before condenser and evaporator installation...........................................................................................................................6
3.1 Condenser installation............................................................................................................................................................................................10
3.2 Evaporator installation............................................................................................................................................................................................11
4、Hose and clamp installation...................................................................................................................................................................................12
5、Refrigeration line, defrost drain hoses and electrical cables installation.............................................................................................15
6、Charge compressor oil.............................................................................................................................................................................................21
7、Mount compressormounting kit & compressor(optional)..........................................................................................................................22
8、Check leak and evacuate system..........................................................................................................................................................................26
9、Check and charge refrigerant................................................................................................................................................................................28
10、Install cab control and connect electricals.....................................................................................................................................................29
11、Check and adjust CPR(only suitable for unit with R404A)....................................................................................................................34
12、Check and adjust expansion valve superheat................................................................................................................................................36
13、Installation overview..............................................................................................................................................................................................37

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1、Installation Instruction
Protective Equipment
Safety first
Recommendations
■Always use adequate personal protective equipment before doing anything on this unit.
■Technicians must wear the proper PPE in right way, including full body harness with two
hooks in the waist, safety cap, safety glasses and safety shoes.
■Disconnect the vehicle battery:--Remove the battery ground(-);Then disconnect the positive
battery(+).
■Check the grip brake of truck to ensure it being launched in safe.
■Pull out the key.
■Put safety tag on the steering wheel.
■Drain hose from the evaporator to the outside must have an angle to insure water to be
drained out.
■A descent of 100mm minimum must be applied between evaporator drain water hoses and the
hoses inside the body.

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1、Installation Instruction
Installation steps
■Technicians must wear the proper PPE in right way,
including full body harness with two hooks in the waist,
safety cap, safety glasses and safety shoes.
■Check the grip brake of truck to ensure it being launched in
safe.
■Pull out the key.
■Put safety tag on the steering wheel.

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2、Check fitting kit to make sure all parts and drawing are present
Before installation
1.Unpack the box contents in your warehouse.
KEEP THE DOCUMENT DELIVERED WITH THE
UNIT
2. Unpack the box
3. Check the box content corresponds to the bill of material on
the packaging.
■ Condenser
■ Evaporator
■ Mounting kit
■ Cab command
Note
In the event of abnormality (missing, damaged part or
part number etc), fill in the form “Advance warning, DOA,
Claim” and contact Zhengzhou Kaixue Cold Chain Co.,
Ltd.

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3、Preparation before condenser and evaporator installation
Before installation
□Take care not to obstruct the air intakes on the
evaporator section and the ventilation ducts.
□For any mobile partition installation, contact our
Technical Department or refer to the attached chart.
Model
X
Y
KX-450K
1300mm
150mm

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3、Preparation before condenser and evaporator installation
Recommendations
Before box preparation and unit installation start, protect
the vehicle roof and the refrigeration box floor (cover,
cardboard…). And there should be the embedded bracket
inside the box.
Condenser installation
1.Present the drilling template – not supplied - (refer to the
bodybuilder drawing).
2.Mark out the 4 fixing holes and the electrical harness and
hoses hole, and drill(φ12.5mm).
Evaporator installation
1.Present the drilling template – not supplied - (refer to the
bodybuilder drawing).
2.Leave a minimum space of 150 mm between the box
wall and the rear of the evaporator.
3.If needed, use the fixing material adapted to
reinforcement done by the bodybuilder.
3.Drill a hole to pass hoses and harness.

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3、Preparation before condenser and evaporator installation
KX-450K condenser installation drawing

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3、Preparation before condenser and evaporator installation
KX-450K evaporator installation drawing

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3.1 Condenser installation
Condenser installation:
1.Remove the cover:
■ Remove the fixing nuts
■ Remove the cover
2.Fix the condenser in the middle of front wall panel, tie
the nuts when make sure it won’t be inclined.