4
WTK-SVN001-EN
Model Nomenclature
W
T
K
5
0
7
A
B
0
0
B
A
1
2
3
4
5
6
7
8
9
10
11
12
Digit No. 1 = Product Type
W = Split Water Cooled Condensing Unit
Digit No. 2
T
= Cooling Only
W = Heat Pump
Digit No. 3 = Refrigerant Circuit(s)/Compressor(s)
K = Single Refrigerant Circuit/Compressor
D = Dual Refrigerant Circuits/Compressors
T
= Triple Refrigerant Circuits/Compressors
(Others to be determined as needed.)
Digit No. 4 = Refrigerant Connection Type
0
= Sweat (Brazed)
5
= Flared (Tubing)
7
= Quick Connect
Digit No. 5 and No. 6 = Nominal Capacity
Btu/h X 1000
(Note: Exact system capacities/performance when matched with selected indoor
unit are specified in Product Catalogs.)
Digit No. 7 = Major Development Sequence
Digit No. 8 = Electric Power Supply Characteristics
A
= 220V/1ph/50Hz or 200-220V/1ph/50Hz
B = 240V/1ph/50Hz or 220-240V/1ph/50Hz
1
= 220V/1ph/60Hz or 200-240V/1ph/60Hz
3
= 200-240V/3ph/60Hz
D = 380-415V/3ph/50Hz
4
= 460V/3ph/60Hz
Digit No. 9 and 10 = Factory Installed Options
(Note: The Alphabetic Letter “O” is not used in digit 9 or 10, Only the Number “0”
is used.)
00 = No option
0E = 3 minute time delay (for use w/ MCD)
0F = Hi/Lo Pressure Cut Off
0G = 3 minute time delay + Hi/Lo Pressure Cut Off
0S = Special request to be provided in wording and to be approved by factory
i.e. service valve at the water side, insulation on suction line, emergency stop.
Digit No. 11 = Minor Design Sequence/Series - Design Change
Alphabetic Letter, “A” through “Z”
Digit No. 12 = Service Digit
