Brochure

H150-100 (2232-150)
F-27383-1 © Copyright 2006 TAC. All Rights Reserved. 37
Typical Applications
Figure 1 Typical Applications.
Figure 2 Relative Humidity vs. Branch Pressure.
M
SCNC NO
Receiver Controller
(Reverse Acting)
B
CRMS
R527 Series E/P Relay
N.C. Steam Valve
8-13 psig
S
M
M M
V
Vac Wire to
Fan Starter
STM.
To Steam
Humidifie
r
H150-100
Duct Humidity
Transmitter
N100-0010
1 H150-100 is usually located in the return (or exhaust) air duct, to measure
space relative humidity.
2 When the air-handling unit fan motor is de-energized, the E/P relay removes
control air from the normally closed steam valve, closing it fully.
% Relative Humidity
6
5
4
3
2
1
0
7
8
9
10
11
12
13
14
15
20100 30405060708090100
Branch Pressure (psig)