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RLC-PRC020-EN
Model
Nomenclature
RTH D U D 2 F 0 A0 U A G 3 A 4 L A L G 3 F 2 L A L
1,2,3 4 5 6 7 8 9 10,11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
Digits 01, 02, 03 – Series R
™
RTH = Series R
Digit 04 – Dev Sequence
D = 4th Major Development
Digit 05 – Design Control
U = WCBU
Digit 06 – Compressor Frame
B = B Compressor
C = C Compressor
D = D Compressor
E = E Compressor
Digit 07 – Compressor Capacity
1 = Smaller Capacity for Frame
2 = Larger Capacity for Frame
3 = 50Hz Capacity
Digit 08 – Unit Power Supply
A = 200V/60Hz/3Ph power
C = 230V/60Hz/3Ph power
D = 380V/60Hz/3Ph power
R = 380V/50Hz/3Ph power
T = 400V/50Hz/3Ph power
U = 415V/50Hz/3Ph power
F = 460V/60Hz/3Ph power
H = 575V/60Hz/3Ph power
Digit 09 – Specials
X = No specials
C = All specials denoted by digits elsewhere
S = Uncategorized special not denoted by
other digits
Digits 10, 11 – Design Sequence
** = First Design, etc. increment when parts
are affected for service purposes
Digit 12 – Agency Listing
X = No agency listing
U = C/UL
Digit 13 – Pressure Vessel Code
A = ASME
L = Chinese Pressure Vessel Code
Digit 14 – Evaporator Frame
B = B Frame
C = C Frame
D = D Frame
E = E Frame
F = F Frame
G = G Frame
Digit 15 – Evaporator Capacity
1 = Tube count #1
2 = Tube count #2
3 = Tube count #3
4 = Tube count #4
5 = Tube count #5
6 = Tube count #6
Digit 16 – Evaporator Tube Type
A = Enhanced Fin Copper
Digit 17 – Evaporator Water Pass
Configuration
2 = 2 pass
3 = 3 pass
4 = 4 pass
Digit 18 – Evaporator Water Connection
L = Left Hand Evaporator Connection
R = Right Hand Evaporator Connection
Digit 19 – Evaporator Connection Type
A = Standard Grooved Pipe
Digit 20 – Evaporator Waterside Pressure
L = 150 psi
H = 300 psi
Digit 21 – Condenser
B = B Frame
D = D Frame
E = E Frame
F = F Frame
G = G Frame
Digit 22 – Condenser Capacity
1 = Tube count #1
2 = Tube count #2
3 = Tube count #3
4 = Tube count #4
5 = Tube count #5
Digit 23 – Condenser Tube Type
A = Enhanced Fin Copper
B = Smooth Bore Copper
C = Smooth Bore 90/10 CU/NI
Digit 24 – Condenser Passes
2 = 2 Pass
Digit 25 – Condenser Water Connection
L = Left Hand Connection
R = Right Hand Connection
Digit 26 – Condenser Connection Type
A = Standard Grooved Pipe
C = Marine
Digit 27 – Condenser Waterside Pressure
L = 150 psi
H = 300 psi