INSTALLATIONÐSYSTEM PIPING
1.Place boiler in selected location (as close to chimney as possible). Boiler is shipped assembled. Only the relief valve with a drain line to carry any water to a drain and a drain valve need to be installed.
2.Install relief valve on
3.Install drain valve on lower left side of boiler as marked.
4.Connect supply and return lines to boiler. The connections may require certain additional fittings and parts. (See Fig. 2 and 4.)
ELECTRIC
ZONE
VALVES
AIR VENT |
|
| |
COLD WATER |
| COLD | |
INLET |
| ||
RELIEF | SUPPLY | WATER | |
INLET | |||
MAIN | |||
VALVE | |||
RELIEF | |||
| AIR | VALVE | |
| PURGER | ||
GAUGE | GAUGE | ||
| |||
|
| TO ZONE | |
| FILTROL | 2 SUPPLY | |
| MAIN | ||
| TANK | ||
|
| ||
| LIMIT |
| |
RETURN | CONTROL |
| |
LINE |
|
|
TO ZONE 1
SUPPLY MAIN
AIR VENT
AIR PURGER
FILTROL
TANK
LIMIT
RETURN CONTROL LINE
A95176 | A96140 |
Fig. 2ÐForced Hot Water Typical Piping | Fig. 3ÐForced Hot Water Typical Piping with |
| Zone Control Valves |
If installing an entire new heating system, first install all radiation units (panels, radiators, or cabinets) and supply and return mains, then make connections at boiler.
In connecting cold water supply to water valve, make sure that a clean water supply is available. When water supply is from a well or pump, a sand strainer should be installed at pump.
A hot water boiler installed above radiation level must be equipped with a low water
PROCEDURE 1ÐFOR USE WITH COOLING UNITS
When this boiler is used in connection with refrigeration systems, it shall be installed so that the chilled medium is piped in parallel with the heating boiler. Appropriate valves must be used to prevent the chilled medium from entering the heating boiler. (See Fig. 4.)
When this boiler is connected to heating coils located in air handling units where they may be exposed to refrigerated air circulation, the piping system shall be equipped with flow control valves or other automatic means to prevent gravity circulation of boiler water during cooling cycles.
PROCEDURE 2ÐLOW DESIGN WATER TEMPERATURE SYSTEMS (BELOW 140°F)
If boiler is to be used in a heating system where design water temperatures below 140°F are desired (for example radiant floor heating), a
The minimum design return water temperature to boiler to prevent condensation in boiler and venting system is 120°F. The minimum high limit setting is 140°F.
CHIMNEY AND VENT PIPE CONNECTION
For boilers with connections to gas vents or chimneys, vent installations shall be in accordance with Part 7 NFGC, Venting of Equipment, in the United States or Part 7 NSCNGPIC, Venting System and Air Supply for Appliances in Canada, and applicable provisions of local building codes.
PROCEDURE 1ÐCHECKING CHIMNEY
The chimney is a very important part of the heating system. It must be clean, the right size, properly constructed, and in GOOD CONDITION. No boiler can function properly with a bad chimney.
1.Use local codes for installation or NFGC. In Canada, follow
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