Startup And Adjustments; Preliminary Inspections; Gas Connections - American Standard GRWF130A94A0A Installation Manual

4.0 Start-Up and Adjustment
▲ ▲
WARNING
!
CARBON MONOXIDE POISONING HAZARD
FAILURE TO FOLLOW THE INSTALLATION
INSTRUCTIONS FOR THE VENTING SYSTEM
BEING PLACED INTO OPERATION COULD
RESULT IN CARBON MONOXIDE POISONING OR
DEATH.
FAILURE TO FOLLOW THIS WARNING COULD
RESULT IN SERIOUS INJURY, DEATH, OR PROP-
ERTY DAMAGE.
▲ ▲
WARNING
!
FIRE OR EXPLOSION HAZARD
FAILURE TO FOLLOW STARTUP AND CHECK-
OUT PROCEDURES COULD RESULT IN SERIOUS
INJURY, DEATH, OR PROPERTY DAMAGE.

4.1 Preliminary Inspections

System Start-Up and Adjustment must be carried out
by qualifi ed installers.
The following checks and procedures must be fol-
lowed at Start-Up and whenever maintenance or
service is performed:
With gas and electrical power "OFF"
1. Verify the boiler system is fi lled with water
and make sure all the air in the boiler and the
system has been vented.
2. Verify there are no water leaks in the boiler or
system.
3. Verify the electrical system is properly con-
nected and grounded.
4. Visually inspect the venting system for proper
size, horizontal pitch and vent termination,
and determine there is no blockage or restric-
tion, leakage, corrosion or other defi ciencies
which could cause and unsafe condition.
5. Determine that the chimney or vent is accepta-
ble to the authority having jurisdiction.
6. Make sure there are no fl ammable liquids or
materials in the same room with the boiler.
7. Open the manual On/Off gas valve, located in
the supply gas line. See Figure 14. Check all
gas connections for leaks with a soapy solu-
tion - DO NOT CHECK WITH AN OPEN
FLAME.
Check Supply Gas Pressure
1. Disconnect power to the boiler.
2. Make sure all gas appliances are off, including
the boiler.
3. Close the manual On/Off gas valve located in
the supply gas line.
4. Open inlet pressure port located in gas valve.
To open valve, use a screwdriver. See Figure
54.
5. Attach fl exible tubing from manometer to the
inlet pressure port. See Figure 55.
6. Open the manual On/Off valve located in the
supply gas line.
7. Reconnect power to boiler and cycle on. Set
the room thermostat for continuous heating
operation as required. The boiler must be ope-
rating to check the supply gas pressure.
8. Verify static inlet pressure is between 7-14"
Water Column (W.C.). If the pressure is not in
this range, do NOT operate the boiler until the
inlet pressure has been adjusted to fall within
this range.
9. Disconnect power from boiler
10. Close the manual On/Off valve. Remove the
fl exible tubing from inlet port and close the
inlet pressure port using a screwdriver.
Combustion and Input Check
1. Make sure all gas appliances are off except the
boiler. Open the manual On/Off gas valve and
turn on the electrical power to the boiler.
2. Set the room thermostat for continuous hea-
ting operation as required.
Figure 54
Figure 55
Inlet Pressure Port
Inlet Pressure Port
18-CG02D1-4
35