Field Controls TM-2000 Manuale utente
TM-90R/TM-2000 HUMIDISTAT INSTALLATION INSTRUCTIONS
CAUTION: DISCONNECT THE TM-90R/TM-2000 TRANSFORMER FROM THE
RECEPTACLE AND SWITCH "OFF" THE FURNACE ELECTRICAL
SUPPLY PRIOR TO INSTALLING THIS HUMIDISTAT.
1. Remove Humidity Control from front side of Base Plate and re-
attach to back side of Base Plate. The Adjustment Knob must
protrude through the hole in the Base Plate. (Figs. 1 & 2)
2. Attach Shaft Extension to
Humidity Control Adjustment
Knob. (Fig. 3)
3. Place Mounting Template on
a smooth, vertical surface of
the furnace return air plenum.
This location should be close
enough to the TM-90R/TM-2000
housing that the 10' length of
2-conductor thermostat wire
can be connected to each
device and secured along the
length. Follow all Template
Instructions. (Fig. 4)
4. Cut away the plastic
material which partially
covers the wiring slot on the
base plate. (Fig. 5)
5. Refer to the Wiring Diagram and attach the wires to the
Humidity Control terminals #2 and #3, both Transformer
terminals and both TM-90R/TM-2000 terminals, as indicated.
The Wiring Diagram shows the proper wire termination
required for each connection.
CAUTION: All wiring should conform to The National Electrical
Code, NEC, and any applicable local codes.
6. Attach the Foam Mounting Gasket to the Return Air Plenum
around the opening which was previously cut. Secure the
Base Plate to the furnace plenum using the two screws
supplied. Be sure that the wires are placed through the
wiring slot. Do not pull the wires tight. (Figs. 6 & 7)
7. Attach the Cover to the
Base Plate, then attach the
Adjustment Knob to the Knob
Extension. (Fig. 8)
8. Set the Adjustment Knob to
the desired humidity level.
9. Switch "ON" the electrical
supply to the furnace and plug
the TM-90R/TM-2000 Transformer
into the receptacle.
NOTE: The Humidistat will allow the electrical current supplied
by the Transformer to flow to the TM-90R/TM-2000 when
there the return air plenum humidity drops below the
Humidity setting. The TM-90R/TM-2000 "ON/OFF'
action is still controlled by the thermal switch which
senses warm air flow. The TM-90R/TM-2000 will operate
only when the furnace is operating AND the Humidistat
senses a need for humidity. This will prevent the TM-
90R/TM-2000 from operating if there is sufficient
humidity in the air and also allow greater humidity
control during weather variation.
NOTE: The Humidity level indications on the Humidistat Cover are
for reference only. It may be necessary to adjust the
Knob to a higher or lower setting based upon the actual
humidity level within the home.
P/N 46259500
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