Βρυτε Μαγνυμ | Page 9 |
|
Term | Description |
Pipe | |
| minimum (sized per section 1.9) |
Joint | Permanent duct tape or aluminum tape |
Sealing |
|
Insulation | Not required, but recommended R5 insulation |
| for cold installations (consult American Society |
| of Heating, Refrigerating, and Air Conditioning |
| Engineers (ASHRAE) handbook |
Table 4. Required Combustion Air Piping Material.
In addition to air needed for combustion, air shall also be supplied for ventilation, including all air required for comfort and proper working conditions for personnel. The Brute Magnum loses less than 1 percent of its input rating to the room, but other heat sources may be present.
2.2Venting
The Brute Magnum is a Category IV appliance
and must be installed with a stainless steel venting system that complies with the UL 1738 Standard (see Table 5). It must be installed per this installation manual and the venting system manufacturer’s Installation Instructions. The unit’s vent can terminate through the roof, or through an outside wall. It can be installed through walls that are from 3" (7.6cm) to 12" (30cm) in thickness.
See Table 2 to select the appropriate vent pipe diameter. The vent pipe must be pitch upward, toward the vent terminal, so that condensate will run back to the Brute Magnum, to drain. Route the vent pipe to the heater as directly as possible. Seal all joints and provide adequate hangers as required in the venting system manufacturer’s Installation Instructions. Horizontal portions of the venting system must be supported to prevent sagging and may not have any low sections that could trap condensate. The unit must not support the weight of the vent pipe. Horizontal runs must slope upwards not less than ¼ inch per foot (21mm/m) from the unit to the vent terminal. Up to five elbows can be used with the 50 feet (15.2m) of pipe. Subtract 10 allowable linear feet for every additional elbow used.
IMPORTANT NOTE ABOUT COMMON VENTING:
A single vent that is shared by multiple Brute Magnum units MUST be engineered by a competent venting specialist, and involves the selection of draft inducing equipment, hardware and controls to properly balance flue gas pressures. Do not common vent
Brute Magnum units unless the vent system meets this requirement. Brute Magnum units are never permitted to share a vent with Category I appliances.
A condensate drain is built into the Brute Magnum. A pressure switch monitors the condensate drain pan, and will trip if the condensate level gets too high. This will prevent the Brute Magnum from firing if there is a blockage or overflow.
Connect a clear plastic tube, minimum 3/8" diameter, between the drain connection and a floor drain (or condensate pump if a floor drain is not accessible).
Caution
Condensate is mildly acidic, and may harm some floor drains and/or pipes, particularly those that are metal. Ensure that the drain, drainpipe, and anything that will come in contact with the condensate can withstand the acidity, or neutralize the condensate before disposal. Damage caused by failure to install a neutralizer kit or to adequately treat condensate will not be the manufacturer’s responsibility.
A neutralizer kit is available from Bradford White. The kit includes a condensate pump.
The condensate tray must be primed before starting the unit. Fill the tray with water through the exhaust vent connection on the back of the unit. Continue filling until water flows out of the condensate drain port. This prevents the flue gases from escaping through the condensate drain. The condensate drain must be installed so as to prevent accumulation of condensate. When a condensate pump is not used, the tubing must continuously slope downward (except for the trap loop) toward the drain with no spiraling.
Consult local codes for disposal method.
Term |
| Description |
Venting |
| Sealed stainless steel |
|
| system certified to UL1738. |
Insulation |
| Not required, but recommended R5 |
|
| insulation with protective cover for cold |
|
| installations (consult American Society of |
|
| Heating, Refrigerating, and Air Conditioning |
|
| Engineers (ASHRAE) handbook) |
| Table 5. Required Venting Material. | |
2.3Locating Vent & Combustion Air Terminals
2.3.1 Horizontal Vent Terminal
The appropriate side wall vent hood must be used, and is listed in the installation and operation manual. The terminal provides a means of installing the vent piping through the building wall, and must be located in accordance with ANSI Z223.1/NFPA 54 and applicable local codes. In Canada, the installation must be in accordance with CSA B149.1 or .2 and local applicable codes. Consider the following when installing the terminal: