Step 5 - Connect The Drain Hose - Carrier 40MAHB Series Installation Instructions Manual

Step 5 - Connect the Drain Hose

By default, the drain hose is attached to the left-hand side of the 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 a drain hose extension (purchased separately) to the end of
drain hose.
• Wrap the connection point firmly with Teflon
good seal and to prevent leaks.
• For the portion of the drain hose that remains 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 ensure that water flows smoothly from the unit.
NOTE: Be sure to arrange the drain hose according to Figure 17.
CORRECT
Ensure there are no kinks
or dents in the drain hose
to ensure proper drainage.
NOT CORRECT
Kinks in the drain hose
create water traps.
Fig. 17 — Drain Hose Placement
Plug the Unused Drain Hole
To prevent unwanted leaks, plug the unused drain hole with the rubber
plug provided.
Fig. 18 —Plug the Unused Drain Hole
40MAHB-01SI

tape to ensure a
NOT CORRECT
Ensure there are no kinks
or dents in the drain hose
to ensure proper drainage.
NOT CORRECT
Do not place the end of the
drain hose in water or in
containers that collect water.
This prevents proper drainage.
Specifications subject to change without notice.
CAUTION
All wiring must comply with local and national electrical codes,
regulations and must be installed by a licensed electrician. All
electrical connections must be made according to the Electrical
Connection Diagram located on the panels of the indoor and
outdoor units.
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.
Power voltage should be within 90-110% of rated voltage.
Insufficient power supply can cause malfunction, electrical shock,
or fire.
If connecting power to fixed wiring, a surge protector and main
power switch should be installed. If connecting power to fixed
wiring, a switch or circuit breaker that disconnects all poles and
has a contact separation of at least 1/8in (3mm) must be
incorporated in the fixed wiring.
The qualified technician must use an approved circuit breaker or
switch. Only connect the unit to an individual branch circuit
outlet. Do not connect another appliance to that outlet.
Properly ground the air conditioner.
Every wire must be firmly connected. Loose wiring can cause the
terminal to overheat, resulting in product malfunction and possible
fire. Do not let wires touch or rest against refrigerant tubing, the
compressor, or any moving parts within the unit.
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.
WARNING
Before performing any electrical or wiring work, turn off the main
power to the system.
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