TriangleTube Instinct COMBI 155, Инструкция по установке и обслуживанию

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29
CHAPTER
5
CHAPTER 5 - INSTINCT COMBI UNITS - DOMESTIC PIPING
5.1. Domestic Piping Pressure Relief Valve
5.1.1 Standard Installation
Install pressure relief valve onto the domestic piping
as shown in Fig 18 below.
Fig. 18 - INSTINCT Pressure Relief Valve, Drain Valve, T&P Gauge
Installation
5.1.2 Pressure Relief Valve - Standard
Installations
The domestic water heater (if utilized) shall have a
field supplied pressure relief valve installed within 6”
[152mm] of the DHW hot outlet connection with the
relief valve spindle installed in the vertical position.
The domestic water heater (if utilized) requires a field
supplied pressure relief valve identified with the ASME
V or HV symbol and set to relieve at or below 150 psi
[10 bar] of domestic water pressure and a minimum
relieving capacity of 199,000 Btu/hr with 3/4” NPT
threads. For safe operation of the domestic water
heater, the relief valve must not be removed from its
designated location of installation or plugged.
1. The INSTINCT is not supplied with a 150 psi [10bar]
pressure relief valve and must be piped using a
pressure relief valve connected as shown in
Fig. 18
on page 29
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 should
not be reduced, maintain the same size as the
outlet of the relief valve.
• Should be directed downward towards the floor
at all times. The piping should terminate at least
6 inches [152mm] above any drain connection
to allow clear visibility of the discharge.
• Should terminate with a plain end, not with a
threaded end. The material of the piping should
have a serviceable temperature rating 250°F
[121°C] or greater.
• Should not be subject to conditions here
freezing could occur.
• Should not contain any shut-off valves or
obstructions. No shutoff valves should be piped
between the appliance and relief valve.
WARNING
Failure to comply with the guidelines on
installing the pressure relief valve and
discharge piping can result in substantial
property damage, serious injury or death.
Pressure
Relief Valve
(Field Supplied)
Domestic Hot
Water Supply