Setting Up The U Tube Manometer - Rinnai RHFE-551FA Service Manual

Setting up the U Tube Manometer

RHFE 201, 263, 431, 556 Series
ONE HOSE FROM
U-TUBE TO PRESSURE
PORT ON BURNER
MANIFOLD 1/8 NPT TAP
•
The zero point is marked on the manometer.
•
To read the differential pressure, add from zero upward and from zero downward.
•
Differential pressures must be re-set if the PC board or gas control valve is replaced, or if the appliance is
converted for gas type.
Rinnai Direct Vent Service Manual
ONE HOSE FROM
U-TUBE TO PRESSURE
PORT ON GAS
CONTROL VALVE 1/8
NPT TAP
103