Daikin MPS015 F, Руководство по установке и обслуживанию, Страница: 29 / 132

Gas Pipe Manifold Pressure Adjustment for Propane Gas Fuel:
For Two Stage Furnace:
1 . Read gas pressure at the Inlet Pressure Tap of the
Honeywell VR8305Q Gas Safety Control Valve ( Figure
25 ) and confirm pressure is at 11.0" wc. Adjust upstream
pressure reducing gas regulator as required to obtain
11.0" wc gas pressure.
2 . The gas pipe manifold pressure for high fire (stage
#2) should be set at 8.2" wc. Adjust the High Pressure
Adjustment Honeywell VR8305Q Gas Safety Control
Valve ( Figure 25 ) as required. Screwing the adjustment
clockwise will increase pressure; counter clockwise will
decrease pressure.
3 . The gas pipe manifold pressure for low fire (stage #1)
should be set at 2.05" wc. Adjust the Low Pressure
Adjustment Honeywell VR8305Q Gas Safety Control
Valve ( Figure 25 ) as required. Screwing the adjustment
clockwise will increase pressure; counter clockwise will
decrease pressure.
For Modulating Furnace:
1 . Read gas pressure at the Inlet Pressure Tap of the
Honeywell VR8305Q Gas Safety Control Valve ( Figure
25 ) and confirm pressure is at 11.0" wc. Adjust upstream
pressure reducing gas regulator as required to obtain
11.0" wc gas pressure.
2 . The gas pipe manifold pressure for high fire should be set
at 8.2" wc. Adjust the High Pressure Adjustment on the
Honeywell VR8305Q Gas Safety Control Valve ( Figure
25 ) as required. Screwing the adjustment clockwise
will increase pressure; counter clockwise will decrease
pressure .
3 . The gas pipe manifold pressure for low fire (stage #1)
should be set at 0.51" wc.
Adjust the Low Pressure Adjustment on the Honeywell
VR8305Q Gas Safety Control Valve ( Figure 25 ) as
required until pressure at the Honeywell VR8305Q Gas
Safety Control Valve Outlet Pressure Tap reads 0.51"
wc. Screwing the adjustment clockwise will increase
pressure; counter clockwise will decrease pressure.
Adjust the Maxitrol M520B Modulating Valve (
Figure 26 )
Low Flow Adjustment screw until the gas pipe manifold
pressure reads 0.51" w.c.
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