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Page 5
HUMIDIFIER ADJUSTMENT
The TM-2000 must now be adjusted so that it activates after heated air circulation begins, and de-activates before the
heated air circulation ends.
1. Turn the adjustment knob on the Housing Assembly to the lowest sensitivity setting (fully clockwise). Set the Housing
Assembly power switch to the “ON” position. THE TM-2000 SHOULD NOT ACTIVATE AT THIS TIME.
2. Set the furnace thermostat to cause continued operation of the furnace.
3. At approximately 2 minutes after the furnace begins blowing heated air through the ductwork
, turn the adjustment
knob counterclockwise just until the TM-2000 activates. This will be indicated by glowing of the “ON” light on the
Housing Assembly.
4. Lower the thermostat to end the furnace heating cycle. Check to be sure the TM-2000 deactivates at least 30 seconds
before the furnace stops blowing air through the ductwork.
If the TM-2000 does not deactivate soon enough, turn the
adjustment knob slightly clockwise.
5. Check the operation of the TM-2000 for several more heating cycles to be sure of proper operation as described
above, and adjust the TM-2000 as necessary. If proper operation cannot be obtained, call Field Controls Customer
Service at (252) 522-3031 for further assistance.
6. Once proper adjustment has been made, humidity levels can be increased or decreased by small adjustments of the
TM-2000. Always verify proper operation as described above, after any adjustment has been made.
7. Inspect the system for leaks, loose wires, etc. SEVERAL DROPS OF WATER PER HEATING CYCLE FROM THE
DRAIN TUBE ARE NORMAL. IF SIGNIFICANTLY MORE IS OBSERVED, CALL FIELD CONTROLS CUSTOMER
SERVICE, OR CONSULT THE TROUBLESHOOTING GUIDE IN THIS MANUAL.
W
HEN HUMIDIFICATION IS REQUIRED
1. Plug the transformer into the receptacle.
2. Open the saddle valve completely.
3. Place the "ON/OFF" switch in the "ON" position.
4. Check for proper sequence of operation by setting thermostat to call for heat and follow through complete cycle.
N
OZZLE CAPACITY CHART
Table 1
NOZZLE
SIZE
PART
NUMBER
GAL/DAY
HEATED
FLOOR
SPACE
STD/OPT
0.65
GPH
46017401 UP TO 9
UP TO
3000
SQ. FT.
STANDARD
1.00
GPH
46017402 UP TO 12
UP TO
4000
SQ. FT.
OPTIONAL
1.35
GPH
46017403 UP TO 18
UP TO
5000
SQ. FT.
OPTIONAL
ELECTRICAL RATING
Table 2
VOLTS
AMPS VA Hz
24 VAC 0.40 10
60