Piping Connection - York IDH072B21S Series Installation And Maintenance Manual

6.2

Piping Connection

(1) Position of piping connection is shown below.
Refrigerant Liquid Pipe Connection
Condensate Pipe Connection VP25
(Outer Diameter φ1-1/4 [32])
● Cut the pipe end before brazing to remove the cap, and discharge gas inside the pipe.
If not discharged, brazing material will be blown off.
● Pay attention so that the flame does not come into contact with the unit.
(2) Both the liquid refrigerant pipe and the gas refrigerant pipe have a thermistor for temperature
detection. When brazing them to the indoor unit, cover and cool the pipes with a wet cloth so that the
pipes will not be affected by the heat.
Because the thermistor is attached near the side panel shown as the figure below, be careful not to
affect the heat of brazing to the thermistor when brazing the gas refrigerant pipe. (If the gas refrigerant
pipe is affected by the heat, it may cause malfunction.)
Liquid Pipe
Gas Pipe
Cool by a wet cloth.
P01432Q-rev.1
Refrigerant Gas Pipe Connection
9-15/16 [252]
13-5/8 [346]
18-7/16 [469]
Cut
Release the gas before removing
the cap from the pipe.
Gas Thermistor
Take care to ensure that
the flame does not come
into contact with the main
body itself.
Figure 6.1 Brazing Pipes
2-7/8 [72]
(Condensate Pipe Connection)
4-15/16 [126]
(Refrigerant Gas and Liquid Pipe Connection)
After brazing the pipes, check for leakage
and then insulate the pipes. Wrap the
connection between the pipe on the unit and
the field-installed pipe with tape.
Unit: inch [mm]
17