Haier FlexFit Pro AL24LP2VHA, Руководство по обслуживанию

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58
FlexFit Pro
5. Installation
ENGLISH
SE
C
TION A
1.1
Step - 1.1
If attaching the supplied drain elbow to the outdoor unit,
do so prior to attaching the refrigerant lines and wiring.
Step1.2 Step 1.1
Step 1 - Installation of the Outdoor Unit
Attaching Drain Elbow to Outdoor Unit
1.2
Step - 1.2
Remove the cover plate of the outdoor unit to expose the
terminal block connections.
Electrical Connections for the Outdoor Unit
Step 1.3
Step 1.4
1.3
Step - 1.3
Connect the wiring for both the power source and indoor
wiring.
Wire the system according to applicable national / local
codes.
Verify that the wiring connections for the indoor unit match
wire for wire.
(1-1, 2-2, 3-3, Gnd-Gnd). Failure to wire the system correctly
may lead to improper operation or component damage.
1.4
Step - 1.4
Replace the cover plate.
Step 2.2 Step 2.1
Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
A
B
A
B
Outdoor unit
Indoor unit
Oil trap
CAUTION
Max. Elevation: A Max.
= 100ft / 30m (24k / 36k)
In case the height of A is more than
15ft / 5m, an oil trap should be
installed every 16-23ft /5-7m
Max. Length: B Max
= 165ft / 50m (24k / 36k)
●
●
●
Illustration 4
Step 2 - Connecting the Indoor Unit
Piping
The standard lineset length is 25ft. If the installation length is
different, adjust the refrigerant charge by 0.5oz/ft.for the
24k,36k,42k and 48k model. (Illustration 4)
outdoor unit valves.
chart.
2.1
Step - 2.1
Refrigerant piping connections at the indoor unit are made
utilizing flare joints. Follow standard practices for creating
pipe flares. When cutting and reaming the tubing, use caution
to prevent dirt or debris from entering the tubing. Remember
to place the nut on the pipe before creating the flare.
2.2
Step - 2.2
To join the lineset piping together, directly align the piping
connection.
*See indoor section A, B, or C for electrical connections.
ENGLISH
Hazard of Explosion! Never use an open flame to detect
refrigerant leaks.. Explosive conditions may occur. Use a leak
test solution or other approved methods for leak testing.
Failure to follow recommended safe leak test procedures
could result In death or serious injury or equipment or
property damage.
Use only dry nitrogen with a pressure regulator for
pressurizing unit. Do not use acetylene, oxygen or
compressed air or mixtures containing them for pressure
testing. Do not use mixtures of a hydrogen containing
refrigerant and air above atmospheric pressure for pressure
testing as they may become flammable and could result in
an explosion. Refrigerant used as a trace gas should only be
mixed with dry nitrogen for pressurizing units. Failure to
follow these recommendations could result in death or
serious injury or equipment or property damage.
3.1
Step - 3.1
Using a tank of nitrogen with attached regulator, charge the
system with 150 PSIG of dry nitrogen. Use adapter AD-87
(field supplied) to connect to the service valve. Check for
leaks at the flare fittings using soap bubbles or other
detection methods. If a leak is detected, repair and recheck.
If no leaks are detected, proceed to evacuate the system.
Step 3.1 Step 3.2
Illustration 5
Leak Test
System Evacuation
Step 3 - Leak Test and Evacuation
3.2
Step - 3.2
Attach a manifold gauge, micron gauge, and vacuum pump
(Illustration 5)
Evacuate the system to 350 microns.
Close the vacuum pump valve and check the micron
gauge. If the gauge rises above 500 microns in 60 seconds,
evacuation is incomplete or there is a leak in the system. If
the gauge does not rise above 500 microns in 60 seconds,
evacuation is complete.
Step 2.3
Table 1
Half union Flare nut
Torque wrench
Spanner
Forced fastening without careful centering may
damage the threads and cause a leakage of gas.
Pipe Diameter( ǿ ) Fastening torque
Liquid side6.35mm(1/4") 18N.m/13.3Ft.lbs
Liquid/Gas side9.52mm(3/8") 42 N.m/30.1Ft.lbs
Gas side 12.7mm(1/2") 55N.m/40.6Ft.lbs
Gas side 15.88mm(5/8") 60 N.m/44.3Ft.lbs
2.3
Step - 2.3
standard wrench, and one torque wrench. See Table 1 for the