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Electrical General
Ensure that the electricity supply has been suitably isolated and cannot be switched on, before removing any
electrical covers. All electrical connections should be carried out by a qualified and authorised electrician in
accordance with local site regulations and also in accordance with the latest issue of the I.E.E. regulations.
It is strongly recommended that an Earth Leakage Circuit Breaker (ELCB) is fitted to the incoming electrical
supply.
GENERAL INFORMATION
The Home Booster is suitable for a single phase supply voltage of 230V +/- 10%, with a 10 amp maximum MCB or fuse.
The full load current is 2.6. amp for the Home Booster 3.0, and 3.70 amps for the Home Booster 4.5.
Electrical Connections
Do not attempt to start the pump until the tank has been filled with water and the pump vented.
The electrical installation should be in accordance with the latest issue of the I.E.E. regulations.
ELECTRICAL SUPPLY CONNECTION
The Home Booster is supplied with a mains cable fitted with a plug with a 5A fuse. Alternatively
the main cable may be permanently wired directly into a fused switch spur with a 5A fuse.
A channel is provided beneath the unit for the cable to exit from the rear of the Home Booster,
please see illustration to the right.
Commissioning
Do not attempt to start the pump until the tank has been filled with water, and the pump primed and vented.
Pay attention to the direction that any water will take and ensure that the escaping water does not cause damage or enter
and subsequently damage the pump motor/motor terminal box.
Before carrying out any of the commissioning procedures on the following pages please ensure that the following connections and
checks have been carried out on the booster set.
1. The discharge connection is connected to the system pipework.
2. The electrical supply cables are correctly connected to the main isolator switch.
3. Check that the precharge pressure in the pressure tanks is set to
90% of the cut-in pressure
.
4. Check that the discharge pipework mounted isolating valve is open.
5. Check that all isolating valves on the Home Booster set are open.
6. Check the booster set pipework connections for leaks.
7. To vent the pump, undo the vent screw at the bottom of the pump casing, and wait until water with no
air comes out, then re-tighten. Please see illustration to the right.
DISCHARGE PRESSURE SETTING
The Home Booster discharge cut-in pressure is factory set on the PM2 controller. The maximum discharge pressure setting should
not be set higher than the pressure the pump can achieve, otherwise the pump will not stop with a no water demand condition, and
will result in heating of the liquid in the pump, and possible shaft seal damage.
PM2 CONTROLLER SETTING
The DIP switches are factory set
. For information the settings for the Home Booster 3.0 and 4.5 are given below.
Switch positions 1 to 4 determine the cut-in pressure setting. The DIP switches 1 to 4 add additional pressure to the basic cut-in
pressure of 1.5 bar. Switch positions 5 to 8 should not be changed from the ‘Off’ position.
If the discharge pressure setting is changed, the pressure vessel pre-charge pressure must also be adjusted accordingly. The pre-
charge pressure must be set to 90% of the cut-in pressure setting.
Home Booster 3.0
Home Booster 4.5
Cut-in pressure = 2.5 bar (maximum 3.0 bar)
Vessel precharge pressure = 2.25 bar
Cut-in pressure = 3.5 bar (maximum 5.0 bar)
Vessel precharge pressure = 3.15 bar
