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Plate Heat Exchanger Kits
2.2 MULTIPLE BOILER INSTALLATIONS
For installing 1 to 6 boilers, the product range includes water and gas headers capable of assembly using threaded socket,
compression and PN6 flange connections.
2.3 SYSTEM SEPARATION: LOW LOSS HEADER & PLATE HEAT EXCHANGER
A low loss header or plate heat exchanger allows flow separation within a heating 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. ACV's brazed plate heat exchangers ensure optimum heat transfer efficiency and
low resistance within a compact footprint. The heat exchanger allows hydraulic segregation between the boiler primary and secondary
heating circuits. Used in conjunction with ACV's 40-70 kW and 80-150 kW frame and header kits covering duties from 60 kW to 900 kW.
The design is based on standard components and a modular brazed concept. Each unit is manufactured to the highest standard and
part of the AHRI certified program that ensures thermal performance in accordance with the product specifications.
Benefits
•
Compact design
•
No gaskets
•
Easy install with ACV's Commercial Frame and Header Kits
•
Low maintenance/ self-cleaning
•
All units are pressure tested
2.4 OUTPUT CONTROL
All pumps 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 signal provided by the appliance must be maintained
at all times.
The optional LPB bus accessory control can be installed (1 per boiler) to enable cascade control.
2.5 GAS SUPPLY
All Evo S boilers are compatible with natural gas or propane except the 150 kW model which is natural gas only.
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.
Frame and header kits will be supplied with a 2” or 3" 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” or 3" 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
