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Step 5: Connect drain hose
By default, the drain hose is attached to the left-
hand side of unit (when you are facing the back
of the unit). However, it can also be attached to
the right-hand side. To ensure proper drainage,
attach the drain hose on the same side that your
refrigerant piping exits the unit. Attach drain hose
extension (purchased separately) to the end of
drain hose.
Wrap the connection point firmly with Teflon
tape to ensure a good seal and to prevent leaks.
For the portion of the drain hose that will remain
indoors, wrap it with foam pipe insulation to
prevent condensation.
Remove the air filter and pour a small amount
of water into the drain pan to make sure that
water flows from the unit smoothly.
CORRECT
Make sure there are no kinks
or dent in drain hose to ensure
proper drainage.
NOT CORRECT
Kinks in the drain hose
will create water traps.
www.coastair-ac.com
NOT CORRECT
Kinks in the drain hose
will create water traps.
Do not place the end of the
drain hose in water or in
containers that collect water.
This will prevent proper
drainage.
This product contains refrigerant and requires the installation of
refrigerant-bearing components. The refrigerant is under pressure,
and if not handled properly, can cause bodily injury. If you are
uncertain of your mechanical abilities, we strongly recommend
qualified HVAC professionals complete the installation. Electrical
work must be completed by a qualified electrician.
1. All wiring must comply with local and national
electrical code, regulations and must be
installed by a licensed electrician.
2. All electrical connections must be made according
to the Electrical Connection Diagram located on
the panels of the indoor and outdoor units.
3. If there is a serious safety issue with the power
supply, stop work immediately. Explain your
reasoning to the client and refuse to install the
unit until the safety issue is properly resolved.
4. Power voltage should be within 90-110% of
rated voltage. Insufficient power supply can cause
malfunction, electrical shock, or fire.
5. If connecting power to fixed wiring, a surge
protector and main power switch should be
installed.
6. If connecting power to fixed wiring, a switch or
circuit breaker that disconnects all poles and has a
contact separation of at least 1/8 in (3mm) must
be incorporated in the fixed wiring. The qualified
technician must use an approved circuit breaker
or switch.
7. Only connect the unit to an individual branch
circuit outlet. Do not connect another appliance
to that outlet.
8. Make sure to properly ground the air conditioner.
9. Every wire must be firmly connected. Loose
wiring can cause the terminal to overheat,
resulting in product malfunction and possible fire.
10. Do not let wires touch or rest against refrigerant
tubing, the compressor, or any moving parts
within the unit.
If the unit has an auxiliary electric heater, it must
be installed at least 1 meter (40 in) away from any
11.
combustible materials.
12.
To avoid getting an electric shock, never touch
the electrical components soon after the power
supply has been turned off. After turning off
the power, always wait 10 minutes or more
before you touch the electrical components.
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IOM - DIY Heat Pump Series
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