Heinner HAC-HS09KIT++ - Piping Connection

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Piping connection:
a. Before unscrewing the big and the small sealing caps, press the small sealing cap
with the finger until the exhaust noise stops, and then loosen the finger.
b. Connect indoor unit pipes with two wrenches. Pay special attention to the allowed
torque as shown below to prevent the pipes, connectors and flare nuts from being
deformed and damaged.
c. Pre-tighten them with fingers at first, then use the wrenches. If you don't hear the
exhaust noise, please contact with the merchant.
Model
Pipe size
Torque
Nut width
Min.thickness
7k~12K, 13k~18K, 22K
Liquid Side (φ6mm or 1/4 inch)
15~20N·m
17mm
0.5mm
18K
#
, 21K~36K
Liquid Side (φ9.53mm or 3/8 inch)
30~35N·m
22mm
0.6mm
7K~13K
Gas Side (φ9.53mm or 3/8 inch)
30~35N·m
22mm
0.6mm
12K
#
, 13K~18K
Gas Side (φ12mm or 1/2 inch)
50~55N·m
24mm
0.6mm
18K
#
, 21K~36K
Gas Side (φ16mm or 5/8 inch)
60~65N·m
27mm
0.6mm
36K
#
Gas Side (φ19mm or 3/4 inch)
70~75N·m
32mm
1.0mm
Note: the unit 12k#, 18k# and 36k# is bigger than the unit of 12k, 18k and 36k.
Note: piping connection should be conducted on outdoor side.
Small sealing cap
Press here
Big sealing cap