Unit Operation Hazard - Carrier AGAGC9PNS01D Installation Instructions Manual

Gas conversion kit, propane to natural condensing (90%+) furnaces 40,000 btuh to 140,000 btuh models only
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AGAGC9PNS01D Gas Conversion Kit, Propane to Natural: Installation Instructions
CONVERT GAS VALVE
CAUTION
!

UNIT OPERATION HAZARD

Failure to follow this caution may result in unit damage or improper
operation.
DO NOT use this kit if the gas valve has a green label (26,000 BTUh
model) on it. The 26,000 BTUh model uses a different conversion kit
available from your distributor.
NOTE: :Do not use this kit if the gas valve in
on top of the valve. The green label on the gas valve is a special low
capacity gas valve. Refer to Specification Sheet for the correct
conversion kit.
CAUTION
!
UNIT DAMAGE HAZARD
Failure to follow this caution may result in unit damage
The gas valve must be converted and pre-adjusted before operating on
propane gas. If not converted and pre-adjusted, sooting and corrosion
will occur leading to early heat exchanger failure.
WARNING
!
FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury, death or
property damage.
Gas supply MUST be shut off before disconnecting electrical power
and proceeding with conversion.
WARNING
!
ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in personal injury, death or
property damage.
Before installing, modifying, or servicing system, main electrical
disconnect switch must be in the OFF position and install a lockout tag.
There may be more than one disconnect switch. Lock out and tag
switch with a suitable warning label. Verify proper operation after
servicing.
Single Stage Gas Valve
1. Refer to
Fig.
5. Verify the gas valve has a white label with black
lettering on top of the operator.
2. Be sure gas and electrical supplies to furnace are off.
3. Remove caps that conceal adjustment screws for the gas-valve
regulators, see
Fig. 11
or
Fig.
4. Remove the regulator adjustment screw.
5. Remove the propane gas regulator springs (white).
6. Install the natural gas regulator springs (silver).
7. Install the regulator adjustment screws.
8. Turn the adjusting screw clockwise (in) 8.5 full turns. This will
increase the manifold pressure closer to the natural set point, see
Fig. 11
or
Fig.
12.
9. Do not install regulator seal caps at this time.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Fig. 11
has a green label
12.
SINGLE-STAGE
ON/OFF Switch
1/2" NPT Inlet
1/8" NPT Inlet
Pressure Tap
NOTE: Remove the propane gas regulator spring (white) Install the
natural gas regulator spring (silver)
Fig. 11 – Gas Valve (Single Stage) without Tower Pressure Ports
Fig. 12 – Gas Valve (Single Stage) with Tower Pressure Ports
Two Stage Gas Valve
Refer to
Fig. 13
or
Fig.
14.
TWO-STAGE
TWO-STAGE
ON/OFF Switch
ON/OFF Switch
1/2" NPT Inlet
1/8" NPT Inlet
1/8" NPT Inlet
Pressure Tap
Pressure Tap
Fig. 13 – Automatic Gas Valve (Two-Stage) without Tower Pressure
8
Regulator Seal Cap
Regulator Adjustment
Screw
Regulator Spring
Propane - White 8.5 turns
Natural Gas - Silver 8.5 turns
Regulator Seal Cap
Regulator Adjustment under
Regulator Seal Cap
1/2" NPT Outlet
1/8" NPT Manifold
Pressure Tap
LP/NAT
Regulator Seal Cap
Regulator Seal Cap
Regulator Adjustment
Regulator Adjustment
Screw
Screw
Regulator Spring
Regulator Spring
1/2" NPT Outlet
1/2" NPT Outlet
1/8" NPT Manifold
1/8" NPT Manifold
Pressure Tap
Pressure Tap
Ports
A13048
A170118B
A170133
A11472

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