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MOUNTING
STEAM
DISTRIBUTION
CONTROLS
3/4 (19) OD
PLUMBING
1/4 LDPE
OR COPPER
WATER LINE
ALWAYS INSTALL
A WATER
SHUT-OFF VALVE.
ELECTRICAL
12 (305)
4 (102)
1 (25)
4 (102)
Air Proving
Humidistat
120VAC
USE 1/2 IN. OD COPPER
TO WITHIN 4 FT (1.2 M)
OF HUMIDIFIER.
Fig. 2. Typical HM750 Installation.
Measurements in inches (mm).
5
4 (102)
2 (51) SCREWS
36 (914)
MINIMUM
1 (25)
1 (25) IF WIRED BEFORE MOUNTING.
36 INCHES (914) FOR WIRING ACCESSIBILITY
AIR PROVING
(OR JUMPER)
AP
1
AP
THERMOSTAT OR HUMIDISTAT
24VAC
COM
HUM
HUM
MAIN SUPPLY
L1
L2/N
GND
240VAC
MAIN SUPPLY
L1
L2/N
GND
HM750A1000
AIR PROVING JUMPER COMES
1
PRE-INSTALLED. REMOVE JUMPER
IF AIR PROVING IS UTILIZED.
HUMIDIPRO
H6062
120 VAC
HOT
OFF ON
NEUTRAL
GROUND
(OPTIONAL)
240 VAC
HOT
OFF ON
HOT
GROUND
(OPTIONAL)
M37185
33-00289EF—02
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