The boiler must be isolated from gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas
supply piping system at test pressures equal to or less than 0.5 psig (3.5 kPa).
PROCEDURE 2—CONNECTING GAS PIPING
Refer to Fig. 9 for general layout at boiler. It shows the basic fittings needed. The gas line enters boiler from right side.
The following rules apply:
1. Use only those piping materials and joining methods listed as acceptable by the authority having jurisdiction or in the absence of such
requirements, by the NFGC ANSI Z223.1-1992. Canadian installations must be installed in accordance with NSCNGPIC and all authorities
having jurisdiction.
2. All pipe compound must be resistant to liquified petroleum gas.
3. Install ground joint union in gas supply line between shutoff valve and boiler controls.
4. Install a sediment trap upstream of gas controls.
5. Use 2 pipe wrenches when making connection to gas valve to keep it from turning.
6. Install a manual shutoff valve in vertical pipe about 5 ft above floor.
7. Tighten all joints securely.
8. Propane gas connections should only be made be a licensed propane installer.
9. Two-stage regulation should be used by propane installer.
10. Propane gas piping should be checked out be propane installer.
PROCEDURE 3—CHECKING GAS PIPING
Upon completion of piping, check immediately for gas leaks. Open the manual shutoff valve. Test for leaks by applying soap suds (or a liquid
detergent) to each joint. Bubbles forming indicate a leak. CORRECT EVEN THE SMALLEST LEAK AT ONCE.
WARNING:
Never use a match or open flame to test for leaks. Use a soap-and-water solution.
ELECTRICAL WIRING
All electrical work must conform to local codes as well as the National Electrical Code (NEC) ANSI/NFPA-70-1993. For Canadian installations,
all electrical connections must be made in accordance with CSA C22.1 Canadian Electrical Code, or authorities having jurisdiction.
See Fig. 10 for unit wiring diagram.
PROCEDURE 1—ELECTRIC POWER SUPPLY
WARNING: Turn off electric power at fuse box before making any line voltage connections. Follow local electric
codes.
Run a separate 120-v circuit from a separate overcurrent protective device in electrical service entrance panel. This should be a 15-amp circuit.
Locate a shutoff switch at boiler. It must be turned off during any maintenance. Connect 120-v power supply to aquastat terminals L1 (HOT) and
L2.
The boiler, when installed, must be electrically grounded in accordance with the requirements of the authority having jurisdiction, or in the absence
of such requirements, with the NEC ANSI/NFPA-70-1993. Run a 14 gage or heavier copper wire from boiler to a grounded connection in service
panel or a properly driven and electrically grounded ground rod.
PROCEDURE 2—INSTALLING THERMOSTAT
The thermostat location has an important effect on the operation of boiler system. BE SURE TO FOLLOW INSTRUCTIONS INCLUDED WITH
THERMOSTAT.
Locate thermostat about 5 ft above floor on an inside wall. It may be mounted directly on wall or on a vertically mounted outlet box. It should
be sensing average room temperature so avoid the following:
DEAD SPOTS: HOT SPOTS:
Behind doors Concealed pipes
Corners and alcoves Fireplace
TV sets
Radios
COLD SPOTS: Lamps
Direct sunlight
Concealed pipes or ducts
Kitchens
Stairwells—drafts
Doors—drafts
Unheated rooms on other side of wall
Set heat anticipator at 0.2 amps. The 24-v thermostat connects to aquastat terminals T and T.
—10—
(52 Seiten)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Kommentare zu diesen Handbüchern