Alpha Pre-Plumb 200 - General Package Information
5 GENERAL PACKAGE INFORMATION
IMPORTANT: This appliance can be used by children 8 years and above and persons with reduced physical
sensory or mental capabilities or lack of experience and knowledge if they have been given supervisory or
instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not
play with the appliance.
Cleaning and User maintenance shall not be made by children without supervision.
WARNING: Do not switch on if there is a possibility that the water in the heater is frozen
5.1 COMPONENT CHECK LIST
Before commencing installation check that all the components for your Air Source Heat Pump cylinder are contained in the
package. The following components are supplied with your unit :
Factory fitted
Temperature and Pressure Relief Valve (set at 90°C/7 bar)
lmmersion heater and over-temperature cut-out
Expansion relief valve (comprises expansion valve and check valve)
Primary circulating pump
Primary circuit filling loop
Primary circuit pressure gauge
Automatic air vent
Control panel assembly
DHW zone valve
Flow meter
CH zone valve
Drain valve
Supplied loose
Potable water expansion vessel and bracket
Cold water combination valve (comprises pressure reducing valve, strainer and check valve)
Tundish, cold inlet and safety valve group
5.2 STORAGE AND HANDLING
Prior to installation the Pre-plumbed cylinder unit must be stored vertically upright on a secure, level surface in a
dry, frost free environment. Take note of the weight of the product and follow safe working practices when lifting,
moving or manipulating into position. DO NOT lift by the Pre-plumbed pipework manifold.
5.3 SITING THE UNIT
The Pre-plumbed cylinder unit must be vertically floor mounted. lt can be placed anywhere convenient provided
the discharge pipe(s) from its safety valves can be correctly installed and all pre-fitted ancillary parts can be
accessed for servicing and/or maintenance. Areas that are subject to freezing must be avoided. Ensure that the floor is of
sufficient strength to support the 'full' weight of the unit (Section 4, Technical Data). Pipe runs should be kept as short as
possible for maximum economy.
Additional automatic air vents (AAV) (not supplied) may be required at high points in the primary system where pipework is
located above the level of the cylinder. After filling the system (primary circuit), release all trapped air using air vents during
and following heating period and top up with water as necessary. After removing the air, automatic air vent(s) MUST be
closed.
5.4 WATER SUPPLY
Bear in mind that the water supply to the property will be supplying both the hot and cold water requirements
simultaneously.
It is recommended that the maximum water demand is assessed and the water supply checked to ensure this demand can
be satisfactorily met.
Note: A high water pressure will not always guarantee high flow rates.
Wherever possible the cylinder supply pipe should be 22 mm We suggest the minimum supply requirements should be 1.5
bar pressure and 20 litres per minute flow rate. However, at these values outlet flow rates may be poor if several outlets are
used simultaneously. The higher the available pressure and flow rate the better the system performance.
The cylinder has an operating pressure of 3 bar which is controlled by the cold water combination valve assembly. The cold
water combination valve assembly can be connected to a maximum inlet pressure of 12 bar.
Where mixing taps and thermostatic or mixing showers are installed a balanced pressure cold supply must be used.
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