Installation Manual

INSTALLATION INSTUCTIONS INSTALLATION INSTUCTIONS
1) Mounting Indoor & Outdoor
Units and Running
Piping/Wiring
Ruler (Not Shown)
Stud-Finder
Dry-Wall Saw
Electric Drill
3" Hole Saw
Drill Extension
Hammer Drill and Bit (Not Shown)
Measuring Tape
Level
Flash Light
Screw Driver (Phillps and Flat)
Hammer
Knife
Scissors
Goggled Glass
Mask
Gloves
Ladder
2) Refrigeration Related Work
RECOMMENDED TOOLS FOR INSTALLATION
3) Electrical Related Installation
Wire Cutter
Wire Stripper
Sharp Plier
Cable Ties
Black Tape for Electrical Use
Electrical Meter
Clamp Meter (Not Shown)
Manifold
Infra Thermometer (Not Shown)
4) Trial Running Units and
Inspection
Individual Wrench Set (Use Two at
One Time)
Flare-Nut Tool Set (Not Shown)
Hex Head Allen Wrench sets (Metric
and Imperial)
Brazing Rods and Brazing Torch
Outfit for AC Application (Not Shown)
Brazing Flux
Nitrogen Cylinder for Positive
Pressure Leakage Check (Not Shown)
Soap Bubble for Positive Pressure
Leakage Check (Not Shown)
Vacuum Pump for Negative Pressure
Leakage Check
Helium Refrigerant Minor Leakage
Check (Not Shown)
Manifold
P12 OF 36P11 OF 36
YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !
SAMPLE SIZE COMBINATIONS AND PERFORMANCE DATA
1) The DC inverter outdoor unit may work with many different combinations of styles (wall, ceiling, ceiling/floor, concealed, etc.) and sizes of indoor units.
2) In real world, there might be small percentage of applications where all indoor units will be working at peak demand of cooling or heating needs. One room
could be at peak demand, others may not. This way, the outdoor unit doesn't need to work at peak speed/load all the time.
3) Not all pairs of refrigerant valves need to be connected at initial installation. But, there is minimum amount of indoor units shall be connected (refer to the spec.
sheet for details).
If only few of indoor units are installed initially, other indoor units can still be installed in the future whenever ready (need to vacuum and adjust refrigerant
charge accordingly).
4) These outdoor unit can only drive all indoor units for one thermal mode at one time. Shall not run cooling in one indoor unit, and heating in another one. In
case of mode conflict or clash, correct the thermal mode which is different from others, or shut off power and select one thermal mode for all indoor units.
Indoor Unit
Combinations
Total
Capacity
Room A Room B
Room C
Room D
Capacity Rating-Btu/h
(Min.～Max.)
Input Power Rating-Watts
(Min.～Max.)
WMMS-2AM21-V2B(59) / Cooling Performance Nominal Data(2) WMMS-2AM30-V2B(59)(2)
9K 9K 10880
10880 (9180~12240) 1050 (1000~1300)
12K 12K
11900
11900 (9180~14960) 1050 (1000~1500)
18K 18K 17000
17000 11220~22780( )
1400 (1000~2600)
9+9K 18K 8500 8500
17000 11220~22780( )
1400 (1000~2600)
9+12K
21K
8500 11900
20400 11220~26520( )
1800 (1000~3300)
12+12K 24K
11900 11900
23800 11220~27880( )
2300 (1000~3800)
9+18K
27K
8840
15300
24140 11220~32300( )
2200 (1000~4600)
12+18K
30K
11900 12240
24140 11220~32300( )
2200 (1000~4600)
9+9+9K
27K
8075 8075 8075
24140 11220~32300( )
2200 (1000~4600)
9+9+12K
30K
7140 7140 9860
24140 11220~32300( )
2200 (1000~4600)
9+12+12K
33K
6460 8840 8840
24140 11220~32640( )
2200 (1000~4650)
12+12+12K
36K
8075 8075 8075
24140 11220~32640( )
2200 (1000~4650)
9+9+18K
36K
7480 7480 9180
24140 11220~32640( )
2200 (1000~4650)
9+12+18K
39K
7140 7820 9180
24140 11220~32640( )
2200 (1000~4650)
12+12+18K
42K
7820 7820 8500
24140 11220~32640( )
2200 (1000~4650)
WMMS-3AM24-V2B(59) Cooling Performance Nominal Data(2) / WMMS-3AM36-V2B(59)(2)
9+9K 18K 8500 8500
17000 11220~22780( )
1400 (1000~2600)
9+12K
21K
8500 11900
20400 11220~26520( )
1800 (1000~3300)
12+12K 24K
11900 11900
23800 11220~27880( )
2300 (1000~3800)
9+18K
27K
8840
15300
24140 11220~32300( )
2200 (1000~4600)
12+18K
30K
11900 12240
24140 11220~32300( )
2200 (1000~4600)
9+9K 18K 8500 8500
1400 (1000~2600)
9+12K
21K
8500 11900
1800 (1000~3300)
9+9+9K
27K
8044 8044 8044
2200 (1000~4600)
9+9+12K
30K
7140 7140 9860
2200 (1000~4600)
9+12+12K
33K
6460 8840 8840
2200 (1000~4650)
12+12+12K
36K
8044 8044 8044
2200 (1000~4650)
9+9+18K
36K
7480 7480 9180
2200 (1000~4650)
9+12+18K
39K
7140 7820 9180
2200 (1000~4650)
12+12+18K
42K
7820 7820 8500
2200 (1000~4650)
9+9+9+9K
36K
6800 6800 6800 6800
2480 (1000~4650)
9+9+9+12K
39K
1750 1750 1750 2750
2480 (1000~4650)
9+9+12+12K
42K
1500 1500 2500 2500
2480 (1000~4700)
9+12+12+12K
45K
1700 2100 2100 2100
2480 (1000~4700)
WMMS-4AM42-V2B(59) Cooling Performance Data(2) Nominal
Indoor Unit
Combinations
Total
Capacity
Room A Room B
Room C
Room D
Capacity Rating-Btu/h
(Min.～Max.)
Input Power Rating-Watts
(Min.～Max.)
12+12K 24K
11900 11900
2300 (1000~3800)
9+18K
27K
8840
15300
2200 (1000~4600)
12+18K
30K
11900 12240
10880 (9180~12240)
11900 (9180~14960)
17000 11220~22780( )
17000 11220~22780( )
20400 11220~26520( )
24140 11220~32300( )
24140 11220~32300( )
24140 11220~32640( )
24140 11220~32640( )
24140 11220~32640( )
24140 11220~32640( )
24140 11220~32640( )
27200 11220~32640( )
23800 11220~27880( )
24140 11220~32300( )
24140 11220~32300( )
2200 (1000~4600)
Indoor Unit
Combinations
Total
Capacity
Room A Room B
Room C
Room D
Capacity Rating-Btu/h
(Min.～Max.)
Input Power Rating-Watts
(Min.～Max.)
9+9K 10880 10880
21760 8670~27880( )
2050 (900~2950)
9+12K 10880
13600
24480 8670~28900( )
2300 (900~3300)
12+12K
13260 13260
26520 10200~31620( )
2400 (900~3500)
9+18K 9860 17000
26860 10200~31620( )
2400 (900~3500)
12+18K 12240
15300
27540 10540~33660( )
2400 (1000~3900)
9+9+9K 9180 9180 9180
27540 10540~33660( )
2400 (1000~4000)
9+9+12K 8500 8500 10540
27540 10540~33660( )
2400 (1000~4000)
9+12+12K 7480
10370 10370
28220 10540~33660( )
2450 (1000~4000)
9+9+18K 7990 7990 11560
27540 10540~33660( )
2400 (1000~4000)
12+12+12K
9690 9690 9690
29070 10540~33660( )
2500 (1000~4000)
9+12+18K 7480 9180 10880
27540 10540~33660( )
2400 (1000~4000)
12+12+18K 8500 8500 10540
27540 10540~33660( )
2400 (1000~4000)
9+9+9+9K 8160 8160 8160 8160
32640 11220~37400( )
2600 (1100~4200)
9+9+9+12K 7480 7480 7480 10200
32640 11220~37400( )
2600 (1100~4200)
9+9+12+12K 7140 7140 9180 9180
32640 11220~37400( )
2600 (1100~4200)
9+12+12+12K
18K
21K
24K
27K
30K
27K
30K
33K
36K
36K
39K
42K
36K
39K
42K
45K
6120 8840 8840 8840
32640 11220~37400( )
2600 (1100~4200)
Indoor Unit
Combinations
Total
Capacity
Room A Room B
Room C
Room D
Capacity Rating-Btu/h
(Min.～Max.)
Input Power Rating-Watts
(Min.～Max.)
WMMS-4AM42-V2B(59) Heating Performance Data(2) Nominal
Indoor Unit
Combinations
Total
Capacity
Room A Room B
Room C
Room D
Capacity Rating-Btu/h
(Min.～Max.)
Input Power Rating-Watts
(Min.～Max.)
9K 9K 9860
9860 (6630~15980) 1100 (850~2450)
12K 12K
13260
13260 (6800~17000) 1450 (850~2500)
18K 18K 19720
19720 (8670~27880)
1850 (900~2950)
9+9K 18K 10880 10880
21760 (8670~29240)
2050 (900~2950)
9+12K
21K
10880
13600
24480 8670~30600( )
2300 (900~3300)
12+12K 24K
13260 13260
26520 10200~32640( )
2400 (900~3500)
9+18K
27K
12240 17000
26860 10200~31620( )
2400 (900~3500)
12+18K
30K
12240
15300
27540 10540~33660( )
9+9+9K
27K
9632 9632 9632
28900 10540~37400( )
9+9+12K
30K
9010 9010 10880
28900 10540~37400( )
9+12+12K
33K
7820 10880 10880
29580 10540~37400( )
2400 (1000~3900)
2350 (1000~4000)
2350 (1000~4000)
2400 (1000~4000)
9+9+18K
36K
7990 7990
13600
29580 10540~37400( )
12+12+12K
36K
9860 9860 9860
29580 10540~37400( )
9+12+18K
39K
7480 9180 12920
29580 10540~37400( )
12+12+18K
42K
8500 8500 12580
29580 10540~37400( )
2600 (900~3800)
2600 (900~3800)
2600 (900~3800)
2600 (900~3800)
9+9K 18K 10880 10880
21760 (8670~29240)
2050 (900~2950)
9+12K
21K
10880
13600
24480 8670~30600( )
2300 (900~3300)
12+12K 24K
13260 13260
26520 10200~32640( )
2400 (900~3500)
9+18K
27K
12240 17000
26860 10200~31620( )
2400 (900~3500)
12+18K
30K
12240
15300
27540 10540~33660( )
WMMS-3AM24-V2B(59) Heating Performance Nominal Data(2) / WMMS-3AM36-V2B(59)(2)
WMMS-2AM21-V2B(59) / Heating Performance Nominal Data(2) WMMS-2AM30-V2B(59)(2)
Indoor Unit
Combinations
Total
Capacity
Room A Room B
Room C
Room D
Capacity Rating-Btu/h
(Min.～Max.)
Input Power Rating-Watts
(Min.～Max.)
RECOMMENDED MATCHING INDOOR AND OUTDOOR UNITS (NOT ALL
POSSIBILITIES BEING LISTED)
1 Indoor Unit 2 Indoor Units
3 Indoor Units
4 Indoor Units
09K
12K
18K
09K+12K09K+09K
1 Indoor Unit 2 Indoor Units
3 Indoor Units
4 Indoor Units
4 Indoor Units
09K+12K
09K+18K
12K+12K 09K+09K+09K 09K+09K+12K 09K+09K+18K
1 Indoor Unit 2 Indoor Units
3 Indoor Units
Not allowed
Not allowed
09K+09K+12K 09K+12K+12K 09K+09K+09K+09K 09K+09K+09K+12K 09K+09K+12K+12K12K+12K
09K+18K
09K+12K+18K
09K+09K+24K
12K+12K+18K 09K+12K+12K+12K 12K+12K+12K+12K 09K+09K+09K+18K
12K+18K
1 Indoor Unit
2 Indoor Units
3 Indoor Units
4 Indoor Units
09K+09K+09K 09K+09K+12K
09K+12K+24K
09K+12K+12K 09K+09K+09K+09K
09K+12K+12K+18K
09K+09K+09K+12K
09K+09K+12K+18K
09K+09K+09K+18K
09K+09K+12K+24K 09K+12K+12K+24K
12K+18K
09K+24K
09K+09K+18K 12K+12K+12K 09K+12K+18K
12K+12K+24K 09K+09K+09K+24K
12K+12K+12K+12K
12K+12K+18K
Not allowed
Not allowed Not allowed
Not allowed
12K+24K
12K+24K
18K+18K 09K+12K+12K 09K+12K+18K 12K+12K+12K
18K+18K
Important Notes:
Indoor Unit Mix and Match Size Possibilities (Samples), to Work with: Outdoor Unit WMMS-21CH-V2B(59)(2) / WMMS-30CH-V2B(59)(2)
Indoor Unit Mix and Match Possibilities (Samples), to Work with: Outdoor Unit WMMS-24CH-V2B(59)Size (2) / WMMS-36CH-V2B(59)(2)
Indoor Unit Mix and Match Possibilities (Samples), to Work with: Outdoor Unit WMMS-42CH-V2B(59)Size (2)
Indoor Unit Mix and Match Possibilities (Samples), to Work with: Outdoor Unit WMMS-48CH-V2B(59)Size (2)
12K+12K 12K+18K24K
1 Indoor Unit
Not allowed
Indoor Unit Mix and Match Size Possibilities (Samples), to Work with: Outdoor Unit WMMS-60CH-V2B(59)(2)
2 Indoor Units
5 Indoor Units
09K+09K+09K+12K+12K/18K/24K
09K+12K+12K+12K+12K/18K
09K+09K+12K+12K+18K
09K+12K+12K+18K+18K
12K+12K
18K+18K
18K+24K
12K+18K
12K+24K
24K+24K
3 Indoor Units
09K+09K+09K
09K+09K+18K
12K+12K+12K
09K+09K+12K
12K+12K+18K
12K+12K+24K
09K+12K+12K
09K+12K+18K
09K+12K+24K
4 Indoor Units
09K+09K+09K+12K
09K+09K+12K+18K
09K+09K+12K+24K
09K+09K+09K+09K
09K+12K+12K+18K
09K+12K+12K+24K
09K+09K+09K+18K
12K+12K+12K+12K
12K+12K+12K+24K
09K+09K+09K+09K+12K/18K/24K
09K+09K+12K+12K+12K/18K/24K
12K+12K+12K+12K+12K/18K
09K+09K+12K+18K+18K
12K+12K+12K+18K+18K
18K+24K
18K+18K
24K+24K
18K+24K
9K+9K+9K
9K+9K+18K
12K+12K+12K
09K+12K+24K 09K+09K+12K+18K
* When the rated total capacity of all the indoor units exceeds the rated capacity of outdoor unit, each indoor unit may not output the rated
capacity and one may differ from other, upon other installation/operation factors, if all units are turned on to run compressor simultaneously.
* Must follow pipe length and refrigerant charge adjustment as instructed in below table:
PIPE ADAPTOR
Whenever the outdoor unit gas valve of size 3/8" is to connect with indoor unit gas pipe of 1/2" or 5/8",
one 3/8" - 1/2" or 3/8" - 5/8" adaptor is to be used in between. This reducer is packed separately and
shall be installed at job site.
PIPE ADAPTOR
PIPE FROM
INDOOR UNIT
OUTDOOR UNIT VALVE
OUTDOOR UNIT WORKING TEMPERATURE RANGE