Installation Manual

Hooks
Hooks
Shield
plate
(2 screws)
A
View A
• Read these Safety Considerations carefully to ensure
correct installation.
• After completing the installation, make sure that the unit
operates properly during the startup operation.
• All phases of the field-installation, including, but not limited
to, electrical, piping, and safety, must be done in
accordance with manufacturer’s instructions and must
comply with national, state, provincial, and local codes.
• This product is a heater designed to melt snow that is
blown into the product from the outside to prevent the drain
pan of the outdoor unit from freezing.
• Install the product with a snow-break hood on a high stand
if this product is used in heavy snow areas.
• Meaning of DANGER, WARNING and CAUTION symbols:
Safety Considerations
Safety Considerations
Accessories
Accessories
Tools Required for Installation
Tools Required for Installation
Installation Procedure (1)
Installation Procedure (1)
: Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury.
WARNING
: Indicates an imminently hazardous
situation which, if not avoided, will result
in death or serious injury.
DANGER
• Electric drill
• φ1/8 inch (φ3.2mm) drill
• Phillips screwdriver • Nippers
: Indicates a potentially hazardous
situation which, if not avoided, may
result in minor or moderate injury.
It may also be used to alert against
unsafe practices.
CAUTION
WARNING
CAUTION
• Only qualified personnel must carry out the installation work.
Installation must be done in accordance with this
installation manual.
Improper installation may result in electric shock, fire, or
equipment damage.
• Use only specified accessories and parts for installation work.
Failure to use specified parts may result in electric shock,
fire, the product falling, or equipment damage.
• Before touching electrical parts, turn off the unit.
• Use specified wires. Connect and fix the wires so that the
wires will not put improper force on the terminal junctions.
Wires connected or fixed improperly could result in terminal
overheating, an electric shock, or fire.
• When wiring and connecting the indoor and outdoor units,
carefully arrange the wiring so that they will not put
improper force on the structures.
Install covers over the wires. Incomplete cover installation
could result in terminal overheating, an electric shock, or fire.
WARNING
• Be sure to check that the power supply of the product is turned off.
DANGER
• Do not touch the heater unit without wearing gloves.
The temperature of the heater unit will become high when
the heater is turned on.
Touching the heater unit with bare hands will result in burns
or injury.
• Wear protective gloves at the time of installation.
Touching the suction mouth or aluminum fin of the outdoor
unit may result in injury.
• Do not install the product in places where there is danger of
exposure to inflammable gas leakage.
If the gas leaks and builds up around the unit, it may catch fire.
• Do not grab the top plate of the outdoor unit carelessly
when removing the top plate.
The sharp edge of the top plate may cause injury.
• Do not install the outdoor unit in places where small
animals may nest in the outdoor unit.
If small animals intrude and touch the internal parts of the
outdoor unit, the outdoor unit may malfunction, generate
smoke, or ignite.
Advise the user to keep the place clean.
• Do not touch the heater unit with bare hands.
The temperature of the heater unit will become high when
the heater is turned on.
Touching the heater unit with bare hands may result in
burns or injury.
1. Remove each component of the outdoor unit.
1) Remove the top plate.
2) Remove the right side plate.
3) Remove the front plate A.
• Front plate A is heavy, so be careful.
4) Remove the front plate B.
5) Remove the shield plate.
6) Remove the shield cover.
7) Affix the information label near the manufacturer’s label.
D
Drain pan heater
A
Piercing screw (use for making holes)
M4 × 1/2” (M4 × 12mm)
B
Screw M4 × 5/16”
(M4 × 8mm)
C
Information label
D
1
5
2
1
Information label
D
• Screw types for each component are indicated as below.
No icon: Hexagon tapping screw
 : Truss head tapping screw
Installation Manual
E
1
3P542591-1 M18B110
DRAIN PAN HEATER [KEH082A41]
INSTALLATION MANUAL
Right side plate
(6 screws)
Front plate A
(1 screw)
Front plate B
(8 screws)
Top plate
(10 screws)
Shield cover
(2 screws)
Give this installation manual to the user when installation
is completed.
Jumper (J_DP)
Service PC-board
View A
A
Holes
Partition
plate
Ground plate
(The ground plate should be
installed so that it firmly
adheres to the partition plate.)
iii) Insert the harness iv) Using a screwdriver or another tool,
return the sheet metal bent in step i)
to the original position
ii) Bend the sheet metal with a tool
such as a screwdriver
i) Bend the sheet metal with a tool
such as a ruler
Ruler
Sheet metal
Sheet metal
Screwdriver
Screwdriver
Sheet metal
Harness
COOL
4
3
2
1
2
1
E
D
C
B
A
Remove
the switch
cover
Truss
head
tapping
screw
DP2
DP1
Fasten terminals
Snap band
Hole
Installation Procedure (3)
Installation Procedure (3)
Installation Procedure (2)
Installation Procedure (2)
3. Route the harnesses.
4. Cut the jumper.
5. Install each component to the original position.
2) Connect the fasten terminals to DP1 and DP2 on the PC-board.
• Either drain pan heater fasten terminal can be connected to either DP1 or DP2 with no problem.
• Secure the harness snap band in the hole in the sheet metal.
• Be careful not to confuse screw types. Refer to “Installation Procedure (1) ”.
• Install so that the shield cover and shield plate hooks (2 locations each) are securely engaged.
CAUTION
• When drilling a hole, be careful not to damage the soundproofing material and other components on the back side.
A
1) Insert the plates of the drain pan heater under the heat exchanger.
2) If there are no holes, drill φ1/8 inch (φ3.2mm) holes in the bottom frame and the partition plate to fix the drain pan heater.
• Place the actual components to ensure positioning is correct before drilling holes.
• The holes can be made with the piercing screw as well.
3) After holes are made, fix the drain pan heater with the screws. (Do not fix with the piercing screws.)
A
A
C
B
B
Drain pan heater
A
Holes (Fix with the screw.)
C
Screws
C
2. Install the drain pan heater.
A
• Using a tool such as nippers, cut the jumper (J_DP) on the service PC-board.
• Using the removed truss head tapping screw, reattach the switch cover.
1) Flex the sheet metal of the outdoor unit and pull the harness around.
Plates
Heat exchanger
01_EN_3P542591-1.indd 1 10/5/2018 9:10:34 AM