Carrier 53KHET 12 Installation Manual page 41

CONNECTING CONDENSATE DRAIN LINE (Cont.)
17-3 INSTRUCTIONS OF CONNECTING CONDENSATE DRAIN LINE
(1) The drain hose must be
gradually inclined downwards
to the outside to ensure flow
of condensate water to outside.
(2) Avoid putting the drain
hose end into water.
(3) Avoid upwards loops in
the drain hose to avoid
over-flowing of condensate
water.
(4) Avoid kinks or bends in the drain hose to
avoid hampering smooth drainage of water
due to air stagnation.
Avoid horizontal kinks or bends
Avoid horizontal drain line with less than 2 % slope
Avoid vertical kinks or bends
Avoid any rise in drain line
(5) Avoid forming a trap in the drain hose
(6) Avoid forming a double trap in the drain hose
Refrigerant pipe
(7) Avoid connecting condensate piping to sewage
system drain without appropriate trap. Trap height
must be calculated according to the unit discharge
head in order to allow sufficient and continuous water
evacuation.
(8) Drainage Test
Check the drainage of the unit by pouring some water
into the unit drain pan and ensure it flows freely through
the drain hose and there is no leakage from other parts.
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Trap
water leakage will cause
Trap
Never from double -trap
Has the same effect as a trap
Drain pipe