Cleveland SteamCraft 10 Service Manual page 212

208 SteamCraft 10 Service Manual, Chapter 8
ANSI STANDARDS ———————————————————————————————————————————
RECOMMENDED PROCEDURE FOR SAFETY INSPECTION OF AN EXISTING
APPLIANCE INSTALLATION AS A PRELIMINARY STEP TO APPLYING
The following procedure is intended as a guide to aid
in determining that an appliance is properly installed and
is in a safe condition for continuing use.
This procedure is predicated on central furnace and
boiler installations equipped with an atmospheric ga s
burner(s) and not of the direct vent type. It should be
recognized that generalized test procedures cannot
anticipate all situations. Accordingly, in some cases,
deviation from this procedure may be necessary to
determine sale operation of the equipment.
a. This procedure should be performed prior to
any attempt at modification of the appliance
or the installation
b.
If it is determined there is a condition which
could result in unsafe operation, the
appliance should be shut off and the owner
advised of the unsafe condition.
The following steps should be followed in making
the safety inspection:
1. Conduct a Gas Leakage Test of the appliance
piping and control system downstream of the
shutoff valve in the supply line to the appliance.
2. Visually inspect the venting system for proper size
and horizontal pitch and determine there is no
blockage or restrictions, leakage or corrosion or
other deficiencies which could cause an unsafe
condition.
3. Shut off all gas to the appliance and shut off any
other fuel-burning appliance within the same
room. Use the shutoff valve in the shutoff valve in
the supply line to each appliance.
4. Inspect burners and crossovers for blockage and
corrosion.
5. Applicable only to warm air heating appliances.
Inspect heat exchangers for cracks, openings or
excessive corrosion.
6. Applicable only to boilers. Inspect for evidence of
water or combustion product leaks.
7. Insofar as is practical, close all building doors and
windows and all doors between the space in which
the appliance is located and other spaces of the
building. Turn on clothes dryers. Turn on any
exhaust fans, such as range hoods and bathroom
exhausts, so they will
EXHIBIT A OF ANSI STANDARD Z21.71 FOR AUTOMATIC INTERMITTENT PILOT IGNITION SYSTEMS FOR
FIELD INSTALLATION
Printed 3/93
EXHIBIT A
AN AUTOMATIC INTERMITTENT PILOT SYSTEM
Determine that the circulating water pumps are in operating
condition.
operate at maximum speed. Do not operate a summer
exhaust fan. Close fireplace dampers. If, after complet-
ing steps 7 through 12, it is believed sufficient combus-
tion air is not available, refer to 1.3.4 to the National
Fuel Gas Code (2223.1) for guidance.
8. Place in operatio n the appliance being inspected. Follow
the lighting instructions. Adjust thermostat so appliance
will operate continuously.
9. a. Determine that the pilot is burning properly and that
main burner ignition is satisfactory by irterrupting and
re-establishing the electrical supply to the appliance in
any convenient manner.
b. Determine manifold pressure in order to match input
after the new control is installed
a.
Visually determine that main burner gas is burning
properly: i.e., no floating. lifting or flashback.
Adjust the primary air shutter(s) as required.
b.
If appliance is equipped with high and low flame
control or flame modulation, check for proper main
burner operation at low flame.
11. Test for spillage at the draft hood relief opening after 5
minutes of main burner operation. Use a draft gauge, the
flame of a match or candle, or smoke from a cigarette,
cigar or pipe.
12. Return doors, windows, exhaust fans, fireplace dampers
and all other fuel-burning appliances to their previous
conditions of use.
13. Applicable only to warm air heating appliances. Check
both limit controller and fan controller for proper
operation. Limit controller operation can be checked by
temporarily disconnecting the electrical supply to the
blower motor and determining that the limit control acts
to shut off the main burner gas.
14. Applicable only to boilers:
a.
Test low water cutoffs, automatic feed controls,
pressure and temperature limit controls and relief
valves in accordance with the manufacturer's rec-
ommendations and instructions to determine they
are in operating condition.
Models 24-CGA-10 and 24-CEA-10
Cleveland Range, Inc.