18
VAPOR-LOGIC
®
VERSION 6 INSTALLATION AND OPERATION MANUAL
Terminal P14
Terminal P14:
21vdc = Power to auxiliary temperature sensor
or temperature compensation sensor
(transmitter)
TS = Auxiliary temperature sensor or
temperature compensation sensor
(transmitter) (4-20 mA input)
OM-337
Thermostat
control wires
Surface-
mounted
thermostat
temperature
control box
on wall
Typical
sensor
cord
routing
Secure temperature
sensor tip to inside
surface of window
glass using clear RTV
silicone adhesive
Double-
pane
window
glass
Window frame
INSTALLATION
Connect wiring for a temperature compensation transmitter or an auxiliary
temperature sensor by inserting wires into the terminal block plug at P14
(labeled 21vdc and TS) per the wiring diagram on the previous page . Tighten
screws; maximum torque is 3 in-lb (0 .34 N-m) .
Note: Only one device can be connected at P14 . You will identify the
connected device in “Step 2 – Setup,” beginning on Page 27 .
AUXILIARY TEMPERATURE SENSOR
An auxiliary temperature sensor typically monitors duct or space air
temperature . Mount the auxiliary temperature sensor wherever you want to
monitor temperature . Auxiliary temperature readings are logged to the data
log .
TEMPERATURE COMPENSATION TRANSMITTER
A temperature compensation transmitter allows Vapor-logic to reduce humidifier
output on cold days, reducing window condensation . Mount the temperature
compensation transmitter on the inside of an outside-wall window .
To mount the temperature compensation sensor:
1 . See Figure 18-2 . Position the temperature compensation sensor control box
on a wall adjacent to a window frame facing north or northeast .
2 . Place the flat surface of the temperature sensor tip on the lower corner of
glass surface .
3 . Temporarily hold the sensor tip in place with strips of masking tape .
4 . Apply a small amount of clear RTV silicone adhesive over and around the
sensor tip (making sure the sensor tip is in contact with the window glass) .
5 . After adhesive cures, remove masking tape .
6 . See the operation section of this manual for more information about the
temperature compensation sensor .
FIGURE 18-1: TERMINAL P14
Step 1 – Field wiring: Limit controls
FIGURE 18-2:
TEMPERATURE COMPENSATION
TRANSMITTER INSTALLATION