Bradford-White Corp Copper Brute II Hydronic Boiler Manual De Usuario

Page 13

SIZE AND

GAS TYPE

 

1-1/2" 

 

2" 

 

2" 

500 propane 

1" 

 

1-1/2" 

 

1-1/2" 

 

2" 

 

2" 

 

2-1/2" 

750 propane 

1-1/2" 

 

1-1/2" 

 

2" 

 

2" 

 

2-1/2" 

 

3" 

1000 propane 

1-1/2" 

 

2" 

 

2-1/2" 

 

2-1/2" 

 

2-1/2" 

 

3" 

1250 propane 

2" 

 

2" 

 

2-1/2" 

 

2-1/2" 

 

3" 

 

3" 

1500 propane 

2" 

 

2-1/2" 

 

2-1/2" 

 

2-1/2" 

 

3" 

 

3" 

1750 propane 

2" 

 

2-1/2" 

 

2-1/2" 

 

3" 

 

3" 

 

3-1/2" 

2000 propane 

2-1/2" 

 

2-1/2" 

 

3" 

Notes:
1. These figures are based on 1/2" (0.12kPa) water column pressure drop.

2. Check supply pressure and local code requirements before proceeding with work.
3. Pipe fittings must be considered when determining gas pipe sizing

.

Gas piping should be supported by suitable 

hangers or floor stands, not by the appliance.

The Copper Brute II’s gas train allows the user to 

pipe the gas from either the right side or the left side 

of the unit. As shipped, the right side of the gas train is 

capped off, and there is a manual valve on the left side. 
If desired, the manual valve on the left side of the gas 
train may be moved to the right side, and the cap on 

the right side may be moved to the left. 

Review the following instructions before 

proceeding with the installation.

1.  Verify that the appliance is fitted for the proper 

type of gas by checking the rating plate. Copper 
Brute II appliances are equipped to operate at 

elevations up to 10,000 feet (3050m). Copper 
Brute II appliances may be adjusted to operate 

properly at altitudes above 2500 feet (

see Section 

6.5.2

) and the input will be reduced if the heating 

value of the gas supply is below sea level values.

2.  The maximum inlet gas pressure must not 

exceed 13" w.c. (3.2kPa). The minimum inlet gas 

pressure is 5" w.c. (1.2kPa).

3.  Refer to 

Table 7

, size supply.

4.  Run gas supply line in accordance with all 

applicable codes.

5.  Locate and install manual shutoff valves in 

accordance with state and local requirements.

6.  A sediment trap must be provided upstream of 

the gas controls.

7.  All threaded joints should be coated with 

piping compound resistant to action of liquefied 

petroleum gas.

8.  The appliance and its individual shutoff valve 

must be disconnected from the gas supply piping 
during any pressure testing of that system at test 

pressures in excess of 1/2 PSIG (3.45kpa).

9.  The unit must be isolated from the gas supply 

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 1/2 PSIG (3.45kpa).

10.  The appliance and its gas connection must be 

leak tested before placing it in operation.

11.  Purge all air from gas lines.

Do not use open flame to check for leaks. An open 

flame could lead to explosion, which could result in 

property damage, serious injury or death.

: The Copper Brute II appliance and all other 

gas appliances sharing the gas supply line must be 

firing at maximum capacity to properly measure the 

inlet supply pressure. The pressure can be measured 

at the supply pressure port on the gas valve. Low 
gas pressure could be an indication of an undersized 

gas meter, undersized gas supply lines and/or an 

obstructed gas supply line.