HydroTherm DYNAMIC/X8, Owner'S Manual

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IMPORTANT:
A discharge pipe connected to the pressure relief device is to be installed in a continuously
downward direction and in a frost-free environment. Warning: Do no connect any pressure-relief
device to the condensate drain pipe. The water may drip from the discharge pipe of the
pressure-relief device. This pipe must be left open to the atmosphere. The pressure-relief device
is to be operated regularly to remove lime deposits and to verify that it is not blocked.
• The system is supplied with a loose Pressure & Temperature Relief (PTR) valve appropriate to the pressure
rating of the water heater tank. If the PTR valve is not present please contact your supplier. The valve Rated
capacity: 850kPa;10kW
;
Set temperature: 93-99
℃
.
• The supplied PTR valve must be installed at Point 4 in section 3.2 DYNAMIC X8 Connection Dimensions
and Components under the socket marked "RELIEF VALVE".
• The PTR valve must be insulated with a minimum 13mm closed coupled insulation, to minimize heat lost.
• The relief valve must be installed so that the drain line is facing downwards at all times with the discharge
point remaining open to the atmosphere.
4. Pressure & Temperature Relief (PTR) Valve - 850kPa;10kW; Set temperature: 93-99
℃
5. Tempering Valve
• This device is automatically programmed to produce hot water in excess of 50°C. As such in accordance with
AS/NZS3500 it is mandatory that a “Tempering Valve” is installed.
• We recommend a high performance or solar rated tempering valve is used to ensure a more accurate hot
water delivery temperature.
• Your old hot water system might not have had a tempering valve installed before and therefore you will notice
a change in the temperature of the hot water. This is normal and required under the new legislation. Should you
have any concerns, please contact your installer.
6. Expansion Control Valve
• Observe the local requirements with regards to the installation of an ECV (optional in most councils).
• When installing an ECV, ensure that the connecting pipe has a diameter no greater than that of the safety
valve.
• Ensure the drain is sized to allow for water runoff, even in incidents where the safety valve has been fully
opened.
• The drain outlet must remain open to the atmosphere at all times and must not have a closing function.
• The ECV should be rated at no more then 700kPa
8. Pressure reducing valve
• This water heater is supplied with a PTR valve rated at 850kPa and is designed for direct connection to mains
water supply with a pressure not exceeding this rating.
• Should main pressure fluctuate above this rating, a pressure limiting device (AS1357) should be connected at
Point 8 in section 3.2 DYNAMIC X8 Connection Dimensions and Components.
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