5
EVOMAX - Low Height Frame & Header Kits
2.2 MULTIPLE BOILER INSTALLATIONS
When sizing multiple appliance installations, the minimum and maximum system heat load requirements need to be matched to the
minimum and maximum appliance load capabilities.
These water header & pump kits are design to supply the optimum water flow around the appliance water circuit only and must be used
in conjunction with a suitably sized low loss header (mixing header).
2.3 HYDRONIC ISOLATION: LOW LOSS HEADER
A low loss header allows flow separation within a hydronic system.
This allows two flow circuits to operate with their own flow and pressure drop environments whilst effectively transferring heat to its
adjoined water circuit.
This enables the modern high resistant, high efficiency boilers to operate under their optimum conditions, while the main heating circuit
operates to its own controlled optimum requirements.
2.4 OUTPUT CONTROL
All pumps provided are designed to be wired to the appliance to allow a controlled pump over run.
If using an external pump control system the capability of a timed pump over run signalled provided by the appliance must be
maintained at all times.
External sequencers can be used with these appliances and are available as an option.
2.5 GAS SUPPLY
The 30, 40, 60 & 80 kW boilers are suitable for use with both natural gas and propane, category ll2H3P. The 100 120 & 150kW boiler
are only available for natural gas l2H.
Connection to the gas supply must be in accordance to with all the applicable regulations.
A single frame and DN50 water header kit will require the gas inlet to be made up to the gas tap provided, connecting it to the inlet of
the appliance.
2 and 3 boiler units will be supplied with a 2” gas header and all the necessary components and pipe work to connect it to the
appliances.
Note: Test points are provided at each end of the 2” gas header. The test point nearest to the gas inlet is intended to be used as the
appliance inlet pressure point.
2.6 ASSEMBLY
The frames must be located in a suitable place that affords a flat and level floor area of suitable load bearing capacity. Care must be
taken when locating the frames that space is available for the servicing, installation and maintenance of the appliance and all of the
associated connections and equipment. (See Appliance manuals)
When using multiple frames they must be bolted together and where necessary secured to the floor.
2.7 SAFE HANDLING
Installation may require 2 or more operatives to move it to its installation site, remove it from its packaging base and during movement into its
installation location. Manoeuvring may include the use of a sack truck and involve lifting, pushing and pulling.
Caution should be exercised during these operations.
Operatives should be knowledgeable in handling techniques when performing these tasks and the following precautions should be considered:
• Grip the boiler at the base.
• Be physically capable.
• Use personal protective equipment as appropriate, e.g. gloves, safety footwear.
During all manoeuvres and handling actions, every attempt should be made to ensure the following unless unavoidable and/or the
weight is light.
• Keep back straight.
• Avoid twisting at the waist.
• Avoid upper body/top heavy bending.
• Always grip with the palm of the hand.
• Use designated hand holds.
• Keep load as close to the body as possible.
• Always use assistance if required.
