Refrigerant Pipe Installation Works - Sharp AE-X2M14LR Service Manual

Running unit
AY-XPM9FR
(1 unit)
Stop valve pressure (gas side) (MPa gauge)
AY-XPM7FR
(1 unit)
Stop valve pressure (gas side) (MPa gauge)
Standard conditions
Dry-bulb temp. (C)
Cooling
Heating
2. PERFORMANCE CURVES
NOTE: Total cooling capacity and total input with 2 units running.
(Running frequency: 50HZ)
1000
00
00
00
4.5
4.0
3.5
3.0
24 26 28 30
At Cooling for AY-XPM9FR (for AE-X2M14LR)

[2] REFRIGERANT PIPE INSTALLATION WORKS

1. Piping
Max. piping length A ------------------ 25m
Min. piping length A ------------------ 3m
Max. total piping length of all unit --- 40m
Max. level difference B -------------- 10m
• If total piping length exceeds 25m,
add 15g of refrigerant per 1m.
• When the outdoor unit is placed at a
higher level than the indoor units, pro-
vide a trap near the hose's lead-in
port.
No
(1)
(2)
(3)
(4)
Frequency (Hz)
(1)
(2)
(3)
(4)
Frequency (Hz)
Indoor side
Relative humidity (%)
27
20
20
19
18
17
16
32 34 36 38 40 42 44
Outside air temp. (ºC)
INDOOR UNIT
A
OUTDOOR
UNIT
B
TRAP
Cool (MAX) Cool (Test run)
73
37
10
14
0.87
50
68
37
11
16
0.93
40
Dry-bulb temp. (C)
47 35
– 7
1100
1000
900
800
700
6.0
5.0
4.0
3.0
-6
At Heating for AY-XPM9FR (for AE-X2M14LR)
2. Air-removing
Use an adapter for preventing vacuum pump oil from flowing back to
the gauge manifold hose. ON/OFF operation of the vacuum pump
should be made by the adapter switch.
1) Remove both valve shaft caps of the stop valves.
2) Remove the service port cap of the stop valve (gas side).
3) Connect the gauge manifold hose to the service port and the vac-
uum pump. Be sure that the hose end to be connected to the ser-
vice port has a valve core pusher.
4) Open the gauge manifold valve and operate the vacuum pump for
10-15 minutes. Make sure the compound gauge reads -0.1MPa (-
76cmHg).
B
5) Close the gauge manifold valve.
6) Turn off the vacuum pump.
7) Fully open the stop valve (liquid side) with hexagon socket screw
key. Turn all the way up to contact.
4 – 2
Operation Mode
Heat (MAX)
63 77
37 2
14 38
20 4
1.07 3.12
30 60
62 69
36 3
14 34
20 5
1.07 2.83
20 50
Outdoor side
Relative humidly (%)
40
87
(Running frequency: 60HZ)
-4 -2 0 2 4 6 8
Outside air temp. (ºC)
AEX2M14LR
Heat (Test run)
48
4
28
5
1.98
25
41
4
28
6
1.79
20
36
34
32
30
28
26
10 12