Honeywell H8908B Humidistat Installation Instructions page 2

H8908B HUMIDISTAT H8908C DEHUMIDISTAT
6. Remove the H8908 case from the base. See
Fig. 1.
7. Position the base on the wall with the arrow up.
8. Use the two 1 in. (25 mm) mounting screws to
secure the base to the wall.
THERMOSTAT
WALLPLATE
WIRING HOLES FOR MOUNTING ON RIGHT.
USE LEFT HOLES FOR MOUNTING ON LEFT.
Fig. 2. Positioning mounting template.
IMPORTANT
Use 18- to 22-gauge wire for proper wiring.
9. Connect the low voltage wires to the leads on the
H8908.
10. Replace the H8908 case.
Duct Mounting
IMPORTANT
When mounting near an elbow area, locate the
control 6 in. (152 mm) upstream from the
elbow so the element is exposed to the normal
airflow (Fig. 3).
69-1341
MOUNTING
TEMPLATE
MOUNTING
HOLES (2)
M13370
4X DRILL 7/64 IN. DIAMETER
PERCER 4 X 7/64 PO.
DUCT TEMPLATE
GABARIT DE GAINE
CAUTION
Equipment Damage Hazard.
Be careful when selecting control
location and cutting hole in ductwork.
Do not cut or drill into air conditioning
or electrical accessories.
Do not install control on supply (hot air) ductwork.
To use template:
1. Remove backing and apply template to duct.
2. Cut along template dotted line and drill the
mounting holes.
MISE EN GARDE
Risque d'endommager le matériel.
Faire attention au moment de choisir
l'emplacement du régulateur et de percer les
trous dans la gaine.
Ne pas couper ou percer les accessoires
électriques ou de climatisation.
Ne pas installer le régulateur sur la gaine
d'alimentation (air chaud).
Utilisation du gabarit:
1. Retirer l'endos du gabarit et placer le gabarit
sur la gaine.
2. Couper le long de la ligne pointillée du gabarit
et percer les trous de fixation.
Fig. 4. Positioning return air duct template.
ALTERNATE LOCATION
RETURN
AIR
6 in. (152 mm)
MINIMUM
BEST
LOCATION
RETURN AIR DUCT
Fig. 3. Selecting duct location for control.
1. Locate the control at least 8 in. (203 mm)
upstream from the humidifier (or dehumidifier/
ventilator supply) in the return air duct. See Fig. 3.
2. Apply the duct template to the duct location.
3. Use the duct template, Fig. 4, to make the open-
ing and mounting holes for the H8908.
4. Remove the H8908 case from the base. See
Fig. 1.
5. Position the foam gasket on the H8908 base.
6. Position the base on the duct with the arrow up.
7. Use the four 1 in. (25 mm) mounting screws to
secure the base to the duct.
8. Connect the low voltage wires to the leads on the
H8908.
9. Replace the H8908 case.
IMPORTANT
Use 18- to 22-gauge wire for proper wiring.
2
RETURN
AIR
15 in. (381 mm)
MINIMUM
M13369
M13373