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70
ON/OFF Switch
1/2” NPT Outlet
Manifold
Pressure Tap
Inlet
Pressure Tap
Min/Max Heat Adust
(Under Cap)
GAS FL
OW
MODULATING
Turn screw 1 click per
second to adjust rate.
Clockwise to increase
rate, counter clockwise
to decrease rate.
A10496
Fig. 52 -- Gas Valve
BURNER
ORIFICE
A93059
Fig. 53 -- Orifice Hole
R Y W G
10 TURNS
THERMOSTAT SUBBASE
TERMINALS WITH
THERMOSTAT REMOVED
(ANITICIPATOR, CLOCK, ETC.,
MUST BE OUT OF CIRCUIT.)
HOOK-AROUND
AMMETER
EXAMPLE: 5.0 AMPS ON AMMETER
10 TURNS AROUND JAWS
= 0.5 AMPS FOR THERMOSTAT
ANTICIPATOR SETTING
FROM UNIT 24-V
CONTROL TERMINALS
A96316
Fig. 54 -- Amp. Draw Check with Ammeter
59MN
7A