FloAire FAV-M - Manual (Page 22)

22
Setting High Fire – Manifold Pressure Method
Turn the burner service switch ON
Open the Burner Gas Shut Off Valve
Use the Maxitrol Amplifier to override the heater into
high fire.
On the A1014 amplifier remove the #4 wire
On the A1044 amplifier remove the #2 and #4 wire
On the M-Series adjust the set-point to be 160 F
Adjust the manifold gas pressure to achieve the desired
manifold pressure
See the details for the high fire pressure adjustment
locations.
On manifolds with an MR212 modulation valve,
adjust the small regulator inside the MR212
modulation valve
On manifolds with either an M511 or M611
modulation valve, adjust the regulator located
before the main gas valves
On manifolds with a combination gas valve, adjust
the regulator under the brass cap on the combination gas valve.
The manifold pressure can be read at the 1/4” pressure tap located after the modulating gas valve.
GAS TYPE: NATURAL
MAX. TEMP. RISE: 140 F
DESIGN TEMP. RISE: 72 F
MAX. DISCHARGE TEMP.: 80
F
OPEN VALVE
HIGH FIRE
HIGH FIRE
MR212
M511 & M611