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38
Reference Temperature-Pressure Table (Split Condensing Unit, R410A-Heat Pump)
Product Series: YMGI Group-Mini Split System Version: 01/11/2010
Outdoor Dry-Bulb (F)
0
5
10
17
25
30
35
40
45
47
55
62
Outdoor Dry-Bulb (C)
-17.8
-15
-12.2
-8.3
-3.9
-1.1
1.7
4.4
7.2
8.3
12.8
16.7
Outdoor Wet-Bulb (F)
-0.8
4.1
8.8
15
22.8
27.5
28.9
36.3
41.0
43.0
50.4
56.5
Outdoor Wet-Bulb (C)
-18.2
-15.5
-12.9
-9.4
-5.1
-2.5
-1.7
2.4
5
6.1
10.2
13.6
Indoor Dry-Bulb
70
°
F (21.1
°
C)
Indoor Wet-Bulb
60
°
F (15.6
°
C)
Discharge-PSI/F
260/84
269/90
284.5/95
290/102
296/111
304/128
304/133
330/138
345/142
354/149
400/149
440/176
Suction-PSI/F
246/72
255/78
270/86
278/89
285/92
290/95
310/98
318/100
330/102
340/104
380/107
425/113
CHECK AFTER INSTALLATION AND TEST OPERATION
Items to be checked
Possible Problems or Consequences
Has the unit been positioned firmly?
The unit may drop, shake or emit noise.
Have you done the refrigerant leakage test?
It may cause insufficient cooling (heating), or compressor overheating,
or other unit malfunctions.
Is heat insulation sufficient?
It may cause unexpected condensate and dripping.
Is drainage pipe tested?
It may cause leakage or unexpected dripping.
Is the voltage in accordance with the rated voltage marked on the
nameplate?
It may cause unit malfunction or damage to the part/unit.
Are the electrical wires and pipes connection installed correctly and
securely?
It may cause unit malfunction or damage to the part/unit.
Has the unit been connected to a secure ground connection?
It may cause electric leakage.
Is the power cord specified properly per NEC codes?
It may cause wire to overheat or even catch fire.
Has the air inlet and outlet been cleared?
It may cause insufficient cooling/heating capacity, and unexpected
noise.
Has the refrigerant pressure been checked or refrigerant been adjusted
accordingly?
It may generate unexpected noise, freezing pipe, capacity issues,
compressor or system damage or even worse.
Has the installing technician filled all the fields in the checklist inside the
warranty registration card?
If not filed or not filled completely or correctly, your factory warranty
may not be qualified.
TEST OPERATION
Before test operation
1. Do not turn on power before installation is finished completely.
2. Electric wires must be connected correctly and securely.
3. Cut-off valves of the connection pipes should be back seated/turned on.
4. All the left over installation material scraps must be cleared away from the unit before initial start-up.
Test operation method
1. Switch on power, press "ON/OFF" button on the wireless remote control to start the operation.
2. Press MODE button, to select the COOL, HEAT (not available for cooling only unit's ), FAN and so on to check :
All the functions (to make sure the unit functions correctly and properly).
Refrigerant (pressures/temperatures at service values/pipes should be good).
Drainage (condensate/water flow should be dripping out of drainage pipe ONLY).
Noise (there should be not any abnormal sound).
