IDEAL EXALT COMBI Installation & Maintenance Manual

Fig. 6 - EXALT Pressure Relief Valve, Drain Valve, T&P Gauge Installation
15
CHAPTER 4
CHAPTER 4 - BOILER PIPING
4.1. General Piping Requirements
• All plumbing must meet or exceed all local, state
and national plumbing codes.
• Support all piping using hangers. DO NOT support
piping by the unit or its components.
• Use isolation valves to isolate system components.
• Install unions for easy removal of the EXALT from
the system piping.
Use a two-wrench method when tightening field
piping onto the boiler piping connections. Use
one wrench to prevent the boiler connections from
turning and the second to tighten field piping.
Failure to support the boiler piping connections
could damage piping, causing a leak, resulting in
substantial property damage, serious injury, or
death.
4.2. Pressure Relief Valve
1. The EXALT is supplied with a 30 psi pressure relief
valve and must be piped using the PRV connection
as shown in Fig. 6 below.
In installati
ons where the CH pressure exceeds
30 psi, a 50 psi relief valve (not included) can be
installed in lieu of the 30 psi relief valve.
CAUTION
NOTICE
2. To avoid potential water damage to the surrounding
area or potential scalding hazard due to the
operation of the relief valve, the discharge piping:
• Must be connected to the discharge outlet of the
relief valve and directed to a safe place of disposal.
• Length should be as short and direct as possible.
The size of the discharge line must not be reduced,
maintain the same size as the outlet of the relief valve.
• Must be directed downward towards the oor
at all times. The piping should terminate at least
6 inches [153 mm] above any drain connection
to allow clear visibility of the discharge.
• Must terminate with a plain end, not with a threaded
end. The material of the piping must have a
serviceable temperature rating of 250ºF or greater.
• Must not be subject to conditions where
freezing could occur.
• Must not contain any shut-o valves or
obstructions. No shut-o valve should be piped
between the boiler and relief valve.
Failure to comply with the gu
idelines on
installing the pressure relief valve and discharge
piping can result in substantial property damage,
serious injury, or death.
WARNING

IDEAL EXALT COMBI Specifications

General

Brand	IDEAL
Model	EXALT COMBI
Category	Boiler
Language	English