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APPLICATION
The H8808B Humidistat and H8808C Dehumidistat
(humidity controllers) provide automatic low voltage control
of humidifiers and dehumidifiers, respectively, in central
heating systems. They have a spst, snap-acting, dust-
proof switch.
Models:
H8808B1003: Humidistat, Beige (makes circuit on
humidity fall).
H8808B1011: Humidistat, Premier White® (makes
circuit on humidity fall).
H8808C1001: Dehumidistat, Beige (makes circuit on
humidity rise).
H8808C1019: Dehumidistat, Premier White® (makes
circuit on humidity rise).
Electrical Ratings:
50 VA at 24 Vac pilot duty.
Ambient Temperature Operating Range:
60°F (15°C) to 90°F (32°C).
Switch Differential:
5 percent RH, nonadjustable.
Range and Setpoint Adjustment:
H8808B: Normal operating range from 10 to 60 percent
RH. Provided with a positive ON feature.
H8808C: Normal operating range from 20 to 80
percent. Provided with positive OFF feature.
INSTALLATION
CAUTION
1.
Ensure the installer is a trained, experienced
service technician.
2.
Disconnect power supply before beginning the
installation.
3.
Conduct a thorough checkout before leaving
the installation.
Mounting
The wallplate does not require leveling for operation, but
for appearance only. Locate the humidity controller about
5 ft (1.5m) above the floor on an inside wall. Be sure the
humidity controller is exposed to average room temp-
erature and average relative humidity. The maximum
temperature at the location selected must not exceed
125°F (52°C). The wallplate mounts directly onto the wall
with the screws and anchors provided.
Use the mounting template (See Fig. 3) to determine
where to drill the two mounting holes and the wire hole.
Fold the mounting template as indicated and place it
®U.S. Registered Trademark
Copyright © 1996 Honeywell Inc. • All Rights Reserved
H8808B Humidistat
H8808C Dehumidistat
INSTALLATION INSTRUCTIONS
flush to the Chronotherm® III Thermostat. Drill the three
holes as indicated on the mounting template.
Run low voltage wiring to the location and pull about
6 in. (152 mm) of wire through the hole.
Pry the humidity controller assembly from the
wallplate by inserting a screwdriver in the notch on
the bottom of the wallplate (Fig. 1).
Fig. 1. Removing humidity controller assembly
from wallplate.
Position the wallplate over the wires with the arrows
on the tabs pointing up.
Fasten the wallplate to the wall using the two screws
provided.
Make wiring connections to the humidity controller
assembly using leadwires and wire nuts provided
(see Wiring section). Push excess wire into the wall.
Plug the opening to prevent drafts from affecting
humidity controller operation. Snap the humidity
controller into the wallplate (Fig. 2).
Fig. 2. Wiring connections on humidity controller.
X-XX UL
M9472
WIRE
NUT
LEADWIRE
QUICK-CONNECT
WIRE LEAD
M9471
69-1039B

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Sommaire des Matières pour Honeywell H8808B

  • Page 1 Range and Setpoint Adjustment: Fasten the wallplate to the wall using the two screws H8808B: Normal operating range from 10 to 60 percent provided. RH. Provided with a positive ON feature. Make wiring connections to the humidity controller...
  • Page 2 H8808B HUMIDISTAT H8808C DEHUMIDISTAT FOLD HERE FOLD HERE FOLD HERE FOLD HERE M7344 Fig. 3. H8808B,C mounting template. 69-1039B...
  • Page 3 H8808B HUMIDISTAT H8808C DEHUMIDISTAT R882 ISOLATION Wiring RELAY HEATING CONTROL All wiring must comply with local codes and ordinances. Make wiring connections according to humidifier instruc- tions, if available; otherwise, see typical wiring diagrams in CHRONOTHERM ® III Y495 F50 OR Figs.
  • Page 4: Setpoint Adjustment

    H8808B HUMIDISTAT H8808C DEHUMIDISTAT Setpoint Adjustment (HOT) POWER FAN CONTROL H8808B SUPPLY The humidity setpoint should be set according to the prevailing outdoor temperature. This provides optimum DPST TRANSFORMER relative humidity control for most installations. The SWITCHING RELAY humidity level can be adjusted to a particular structure by using the above procedure.
  • Page 5: Montage

    Plier le gabarit selon les indications et le placer tout contre le Chronotherm III. Percer les trois ouvertures comme l’indique le gabarit. ®Marque déposée aux Étas-Unis 69-1039B Copyright © 1996 Honeywell Inc. • Tous droits réservés X-XX UL 69-1039B...
  • Page 6 H8808B HUMIDISTAT H8808C DEHUMIDISTAT HUMIDISTAT H8808B DÉSHUMIDISTAT H8808C PLIER ICI PLIER ICI PLIER ICI PLIER ICI MF7344 Fig. 3. Gabarit pour le montage du H8808B,C. 69-1039B 69-1039B...
  • Page 7: Raccordement

    H8808B HUMIDISTAT H8808C DEHUMIDISTAT HUMIDISTAT H8808B DÉSHUMIDISTAT H8808C RELAIS D'ISOLATION RACCORDEMENT R882 RÉGULATEUR DE CHAUFFAGE Tout le câblage doit être conforme aux codes et aux règlements locaux. THERMOSTAT RÉGULATEUR FILTRE À Raccorder en suivant les directives qui accompagnent CHRONOTHERM D'ODEURS...
  • Page 8: Réglage Du Régulateur D'humidité

    H8808B HUMIDISTAT H8808C DEHUMIDISTAT HUMIDISTAT H8808B DÉSHUMIDISTAT H8808C RÉGULATEUR Réglage du point de consigne DU VENTILATEUR Le point de consigne devrait être réglé en fonction de la (SOUS température extérieure pour obtenir une régulation FAN CONTROL H8808B TENSION) optimale de l’humidité relative. Le niveau d’humidité...

Ce manuel est également adapté pour:

H8808c

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