Johnson & Starley Ltd.
Rhosili Road, Brackmills, Northampton NN4 7LZ
Tel: 01604 762881   Fax: 01604 767408

Heat Bank Thermal Store SYSTEMS
Specification 1816-1
Copyright DPS 07/09/00
Heat Bank Thermal Store System  
HBPP System D  
Everest combination unit  
Single Heat Exchanger (30 ltr/min)  
Indirect  
35mm Foam Insulation  
High duty primary coil  
Y-Plan primary controls  
Sealed primary system  
Fitted programmer  
Fitted Primary Pump, 5m head  
All fitted controls are wired  
Thermostatic Blending Valve 22mm  
Backup Immersion Heater  

Unit Code

 HBPP-180-D

Capacity [litres]

 180

Base Diameter [mm]

 450

Overall Diameter [mm]

 520

Height [mm]

 1510

1   Integral Feed & Expansion Tank
2   Plate Heat Exchanger
3   Heat Exchanger Pump
4   Flow Switch
5   Thermostatic Blending Valve, Mixcall III
7   Automatic Air Vent
8   Filling Vent
9   Feed to Ball Valve
10  Isolating Valve
11  Y-Pattern Strainer (supplied loose)
12  Overflow (supplied loose)
13  Cold Feed / Expansion
14  Immersion Heater 3kW Incaloy with Stat
16  Cold Mains In, 22mm
17  Hot Mains Out, 22mm
18  Drain Cock
19  Flow From Boiler
21  Flow to Primary Coil
22  Return from Primary Coil
23  Flow to Heating Circuit
26  Primary Pump UPS 15/50
29  Primary Coil Balancing Valve
30  Primary Expansion Vessel 8 litres
31  Primary Filling Point, with Check Valve
32  Pressure Relief Valve with Gauge 3 bar 1/2''
33  Programmer Danfoss CP715
34  Room Thermostat Danfoss RMT230 (supplied loose)
35  Three Port Mid Position Valve
38  Cylinder Thermostat Danfoss ATC
40  Tight Fitting Lid
42  Wiring Centre

 
Notes..

The unit is fitted with a Mixcall III Thermostatic Blending Valve, to control thehot water temperature, and prevent scalding.  The graph shows the pressure drop across the valve for various hot water flow rates.

The Valve is adjustable from 27°C to 67°C, and has a lockable head, as shown.

 

The unit is fitted with one heat exchanger, capable of delivering 30 litres/minute @45°C (80°C storage). The graphs shown the domestic hot water output that can be achieved for various storage temperatures.

  

A Mains Water Isolating Lever Valve must be fitted within the cylinder cupboard, in clear view and easily accessible. A Strainer (supplied loose) must also be fitted, down stream of the isolating valve, to protect the flow switch [4].
It is advised that the mains water is tested for hardness. In areas of hard water, we advise the use of a scale inhibitor.
It is important that SENTINEL X100 Inhibitor is used to protect the Heat Bank Thermal Store.  Use 1 litre per 100 litres of stored water. Label the unit as protected with the label provided.
A suitable anti-freeze, such as X500, should also be added when there is a chance that the unit will be left filled and unheated in freezing conditions. Please note, however, that adding anti-freeze into the store will not protect mains water pipework from freezing - these should be protected seperately (either by draining or by the application of trace heating).