York MOC09, Owner'S Manual

Page: 11 / 12

TECHNICAL APPENDIX
2
8
3
6
5
4
5
6
1
2
8
3
10
6
5
4
5
6
9
7
1
2
6
5
5
6
1
3
4
10
5
4
3
8
1
10 10
23
19
14
Indoor Temperature
° C WB
Indoor Temperature ° C DB
19
-
1.10
0.88
25
1.20
1.08
0.86
30
1.15
1.04
0.84
35
1.11
1
0.82
40
1.06
0.96
0.79
46
1
0.90
0.74
23
21
17
Indoor Temperature
° C WB
Indoor Temperature ° C WB
14
1.20
1.25
1.30
10
1.04
1.10
1.13
6
0.96
1
1.04
0
0.77
0.80
0.83
-8
0.58
0.69
0.63
Piping length (m)
Correction factor C2
Indoor unit
5
1.00
10
0.98
Fan speed
Correction factor C3
Indoor unit
High
1
Medium
0.90
Low
0.75
Cooling mode
Heating mode
Maximum
+ 28°C (heat pump mode)
+ 19°C
(-5 with low ambient kit)
+ 46°C
- 8°C
Minimum
Legend:
1. Compressor
2. Outdoor unit coil
3. Combined HP/LP pressure switch
(manual reset for the HP switch)
4. Indoor unit coil
5. Refrigerant circuit piping
Cooling circuit diagrams
Outdoor unit
Cooling only - MOC 07-09-12-18-25
Outdoor unit Indoor unit
Heat pump - MOH 07-09-12-18-25
Outdoor unit
Indoor unit
Cooling only - MOC 35-40-45-55-65
Outdoor unit
Indoor unit
Heat pump - MOH 07-09-12-18-25
6. Isolating valve with pressure tap
7. HP pressure switch (Interseason start-up safety)
8. 4-way cycle changeover valve
9. Anti-slugging receiver
10. Restrictor
Unit Capacity
Total cooling capacity can be determined by using correction factors C1, C2 and C3.
Given cooling capacity = Cooling capacity at standard rating conditions x C1 x C2 x C3.
C1 = Capacity correction factor for temperature
C2 = Capacity correction factor for piping length
C3 = Capacity correction factor for indoor unit fan speed
Capacity correction factor for temperature (C1)
Cooling Capacity correction factor for temperature
Capacity correction factor for piping length (C2)
Correction factors (C1) determine the instantaneous capacity (which does not take account of defrosting on heat pump units).
These capacities may vary slightly, depending on the size of the unit.
Capacity correction factor for indoor unit fan speed (C3)
Operating temperature limits
Heating Capacity correction factor for temperature
Indoor unit
Legend:
1. Compressor
2. Outdoor unit coil
3. Capillary tube
4. Indoor unit coil
5. Refrigerant circuit piping
6. Isolating valve with pressure tap
7. HP pressure switch (Interseason start-up safety)
8. 4-way cycle changeover valve
9. Anti-slugging receiver
10. Restrictor