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H7625B; H7635B,C; H7655B DUCT-MOUNT AND OUTDOOR-MOUNT HUMIDITY/TEMPERATURE SENSORS
Outdoor Mounting
The H7635C senses outdoor air humidity and
temperature. Mount this control where it can sense
average outdoor air humidity and temperature. Normally,
the north side of a building provides a suitable location.
NOTES:
—
H7635C is weatherproof for outdoor use.
Knockouts allow 1/2 in. conduit connection.
—
To avoid damaging board during installation,
the cover can be detached completely:
1.Carefully remove wire plug from board.
2.Set the cover aside.
1. Open case by rotating the cover counterclockwise.
NOTE: Orient case so the element points down.
2. Mount standard 1/2 in. conduit to the case.
3. Use case to mark mounting screw pilot hole
locations.
4. Drill pilot holes.
5. Fasten the case to the wall.
6. Wire the sensor. See Wiring section.
NOTE: The two free wires are thermistor wiring
connections. When connecting these, use
two wire nuts.
7. Reattach the wire plug and cover being careful not
to pinch wires between the cover and case.
NORMAL OPERATION
63-2579—3
OFF
ON
Fig. 1. DIP switch locations and settings.
Output Settings (Table 1)
The board has three switch blocks:
— A six DIP switch block.
— A four DIP switch block.
— A white gang switch on a blue block.
1. Adjust the 4-switch block according to Table 1.
NOTE: The 6-switch block normally requires no
adjustment. (See the Appendix.)
2. Set the gang switch (white switch in blue block) to
correspond with the output (mA or Vdc).
NOTE: See Fig. 1 for DIP switch locations.
Table 1. Controller Compatibility
and Output Settings.
Required
Sensor
Output
Controller
Setting
W7750, W7760,
4-20 mA — On — — 4-20 mA C7600C
W7761
W7750B,C
0-10 Vdc
W7760C,
(default)
W7753, W7760
T7350, XL50,
0-10 Vdc
XL100,
(default)
XL500 XF
Modules, XFL
Non-Honeywell 0-5 Vdc
2
4-Switch Block
Blue and
Settings
White
Output
4
3
2
1
Switch
On — — On Vout
On — — On Vout
On — On — Vout
OFF
ON
0-10 VDC
OFF
ON
4-20 MA
OFF
ON
0-5 VDC
M22705
L
S
™
ON
PEC
Setting
H7621/31
n/a
n/a
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