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R516 (2360-501)
F-27383-1 © Copyright 2006 TAC. All Rights Reserved. 95
Accessories
Typical Applications
Figure 1 Typical Application.
Figure 2 Input vs. Output Pressures.
Active Connections
Port Designation Connected to
M Main air.
B Branch output.
S1 Input signal.
Note: S2 port is inactive.
Model No. Wholesale Model No. Description
K502 22-150 Optional manifold backplate.
MCS-S
 Socket assembly.
TOOL-082
 5/64 in. hex wrench.
S1B
1
1
R516
Reversing Relay
M
M
M
BM
C.W. Valve
8-13 psig N.C.
Steam Valve
8-13 psig N.C.
Set at 8 psig Crossover
2
On Room Temperature Increase: As thermostat branch (output) pressure
increases from 3 to 8 psig, N.C. steam valve modulates from open to closed
position. As thermostat branch pressure increases from 8 to 13 psig, N.C.
chilled water valve modulates from closed to open position.
Room Thermostat
Direct Acting
Input Pressure (psig)
12
10
8
6
4
2
0
14
16
18
20
262830 24 22 20 18 16 14 12 10 8 6 4 2 0
Output Pressure (psig)
12
10
8
6
4
2
14
13
11
9
7
5
3
15
Max. Output 20.5 psig
Input/Output Crossover
Point Adjustment
Range
Note: Metric conversion: 6.895 kPa = 1psi