Rapid 4044 - Figure 77: MR 212 Valve

SECTION 21: START-UP P ROCEDURES
127 of 154
FIGURE 77: MR 212 Valve
T
N
E
V
R
2A0
4
1
12A06
R
Low Fire Adjustment
(loosen locking screw
before adjustment)
High Fire Adjustment Cap
Modulator
TOP VIEW (cover removed)
Inlet Pressure
Outlet Pressure
Ta p
Ta p
(Burner Pressure)
SIDE VIEW
NOTE: For high fire adjustment, turn clockwise to
increase manifold pressure; turn counter clockwise to
decrease manifold pressure.