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All water system coils are equipped with discharge and
drain valves.
Use a screwdriver or wrench to open and close the
valve.
2) When installation is complete,
a) Remove air inside pipes.
b) Wrap the connecting pipes and all the valve body with
anti-condensation material (EPDM or PE) of no less than
10 mm thick or install auxiliary drainage equipment.
c) Pour water into the drain pan and check it all the way
until you can see water flows from the drain outlet.
Alternatively, you may check the drain channel and
remove impurities that may obstruct the flow.
d) Install the condensate drain system.
e) The condensate drain system must be properly
lowered to ensure water discharge.
Follow the steps below to set the condensate drain
system.
Make sure the drain connector is stress-free
Remove the knockout plate at the
foundation in case the water pipe
passes under the unit
knockout plate
Figure 5-14
3) Set water storage elbow
The condensate drain system must be fitted with a
suitable elbow to prevent odour penetration. Follow the
steps below to set the elbow.
Figure 5-15
The customer has to purchase the three-way valve and
its accessories (Operation and Installation Manual
attached) separately from the manufacturer.
The customer may also need to purchase the auxiliary
drain pan separately from the manufacturer if required.
See the steps below for installation of auxiliary drain pan:
Base
Place a drain
stopper at the
bottom of the elbow
12
Figure 5-16
4) How to change the coil from left-hand connection
to right-hand connection
Left-hand connection of the coil is adopted by default.
You can rotate the coil and change to right-hand
connection.
Before installation, you should change the direction of
the coil on the ground.
Steps of changing the coil direction:
As shown in Figure 5-17, remove screws ①*2 and ②*2
and then the casing.
As shown in Figure 5-18, remove screws ①*7 to take the
drain pan out.
Then, remove screws ②*4 to take the heat exchanger
out.
Pull out the temperature sensor plug.
Rotate the coil in the direction as shown in Figure 5-18.
As shown in Figure 5-19, remove screws ①*2 to take the
electric box out.
Fasten the screws on the coil.
As shown in Figure 5-19, block the diamond-shaped
holes on the side plate (the plate without inlet and outlet
pipes) with sponge.
Reverse the direction of drain pan plug.
Re-install the electric box to the side plate without inlet
and outlet pipes.
Re-connect the wires.
2
Figure 5-17 Removal of casing
Auxiliary drain pan
2
1
1
Casing assembly
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