User Guide

6 © Copyright 2006 TAC All Rights Reserved. F-24396-1
TYPICAL PIPING
All piping must comply with local codes and ordinances. Refer to Figure-3 and Figure-4 for
typical piping.
Figure-3 Typical Piping for Three-Pipe Single Coil.
Figure-4 Typical Piping for Pneumatic Four-Pipe Single Coil.
Table-6 Four-Pipe Flow Calculations for Valves in Series (Figure-4).
Hot Water
Supply
Valve
Cold Water
Supply
Return
Coil
Normally open
to hot water
A
A
B
B
Hot Water
Supply
VK-7332-203-4-P
Supply Valve
Cold Water
Supply
Coil
Hot Water
Return
VK-7332-313-4-P
Return Valve
Cold Water
Return
TK-1001 D.A.
Room Thermostat
20 psig
Main
A
A
B
B
A
A
B
B
Supply Return Combined
Port Code
C
v
-3
2.2
-3
2.2
—
1.5
Port Code
C
v
-3
2.2
-4
4.4
—
2.0
Port Code
C
v
-4
4.4
-4
4.4
—
3.1