Bradford-White Corp BMT2H, BMT2V, Hydronic Boiler, Water Volume Heater Water Connections Boiler

Brute Deluxe (500-2000) Page 13

Deluxe appliances are equipped to operate at elevations up to 10,000 feet (3050m). Brute Deluxe appliances may be adjusted to operate properly at altitudes above 2500 feet (see Section 6.6.2) 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.

WARNING

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.

NOTE: The Brute Deluxe 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.

SECTION 4A.

Water Connections — Boiler

4A.1 Heating System Piping:

Hot Supply Connections — Boiler

NOTE: This appliance must be installed in a closed pressure system with a minimum of 12 psi (82.7kPa) static pressure at the boiler.

Hot water piping should be supported by suitable hangers or floor stands. Do not support piping with this appliance. Due to expansion and contraction of copper pipe, consideration should be given to the type of hangers used. Rigid hangers may transmit noise through the system resulting from the piping sliding in the hangers. It is recommended that padding be used when rigid hangers are installed. Maintain 1" clearance to combustibles for hot water pipes.

Pipe the discharge of the relief valve (full size) to a drain or in a manner to prevent injury in the event of pressure relief. Install an air purger, an air vent, a

		20°F	25°F		30°F		35°F
SIZE	flow	H/L	flow	H/L	flow	H/L	flow	H/L
	gpm	feet	gpm	feet	gpm	feet	gpm	feet
500	43	1.7	34	1.1	28	0.9	24	0.7
750	64	3.3	51	2.3	43	1.7	36	1.2
1000	85	5.0	68	3.6	57	3.1	49	2.2
1250	106	8.1	85	6.1	71	4.7	61	3.4
1500	128	10.0	102	7.2	85	5.5	73	4.2
1750	N/R	N/R	119	10.5	99	8.4	85	5.8
2000	N/R	N/R	136	12.5	113	10.4	97	8.3
Metric Equivalent
		11°C	14°C		17°C		19°C
SIZE	flow	H/L	flow	H/L	flow	H/L	flow	H/L
	lpm	m	lpm	m	lpm	m	lpm	m
500	161	0.5	129	0.3	107	0.3	92	0.2
750	241	1.0	193	0.7	161	0.5	138	0.4
1000	321	1.5	257	1.1	214	0.9	184	0.7
1250	401	2.5	322	1.9	269	1.4	231	1.0
1500	483	3.0	386	2.2	322	1.7	276	1.3
1750	N/R	N/R	451	3.2	375	2.6	322	1.8
2000	N/R	N/R	515	3.8	429	3.2	368	2.5

Notes: gpm = gallons per minute, lpm = liters per minute, H/L = headloss, ft = headloss in feet, m = headloss in meters. Maximum temperature rise is 35°F (19°C), as shown. Headloss is for boiler’s heat exchanger only. N/R = not recommended.

Figure 5. Typical Gas Train Configuration. Table 8. Water Flow Requirements — BMT2H.