Honeywell H1008A Mode D'emploi

This is a legacy product document
supported by Resideo. It is no
longer manufactured
H1008A,D
Automatic Humidity Control
APPLICATION
The H1008A,D Automatic Humidity Controls with
HumidiCalc+™ Software are duct mounted and provide
automatic, low voltage, electronic control of by-pass
flow-through, powered flow-through, steam and drum
humidifiers in central heating systems. The H1008D also
controls heat/energy recovery units and dehumidifiers.
The H1008A,D are designed to automatically adjust the
humidity level based on indoor temperature and humidity,
inferred or measured outdoor temperature and the
frost factor dial setting. The frost factor setting is used to
maintain a comfortable humidity level in the home while
reducing moisture condensation on inside windows. The
HumidiCalc+™ Software infers the outdoor temperature
by monitoring equipment cycles and eliminating the need
for an outdoor temperature sensor when used with gas or
oil furnaces. Using the C7089H Outdoor Temperature
Sensor (purchased separately), the H1008A,D also
provide automatic humidity control for heat pump
systems.
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to
follow them could damage the product or cause a
hazardous condition.
2. Check the ratings given in the instructions to make
sure the product is suitable for your
application.
3. Installer must be a trained, experienced service
technician.
4. After installation is complete, check out product
operation as provided in these instructions.
Use the following specifications for this installation:
Electrical Ratings:
Power Supply: 24 Vac, 60 Hz.
Humidifier Control Relay Contacts:
Inductive: 2A full load, 10A locked rotor.
Resistive: 2A.
Thermostat/Furnace Load: 11 mA maximum at 24 Vac.
INSTALLATION INSTRUCTIONS
CAUTION
Voltage Hazard.
Power supply can cause electrical shock.
Disconnect power supply before beginning
installation.
Location and Mounting
H1008A,D Automatic Humidity Control
IMPORTANT
Do not install H1008 on supply air. Tempera-
tures in excess of 120°F cause the control to go
into error mode. If mounting near an elbow
area, keep the control 6 in. (152 mm) upstream
from the elbow so the humidity and temperature
sensor is exposed to the normal airflow (Fig.1).
Locate the control at least 12 in. (305 mm) upstream from
the humidifier (or dehumidifier/ventilator supply air) in the
return air duct where it can be exposed to the air stream
of the return air. See Fig. 1.
ALTERNATE LOCATION
RETURN
AIR
6 in. [152 mm]
MINIMUM
BEST
LOCATION
RETURN AIR DUCT
Fig. 1. Select duct location for control.
RETURN
AIR
15 in. [381 mm]
MINIMUM
M12822
Place Bar Code Here
69-1185EF-05