DEDICATED PRESSURE SYSTEMS LTD.

Telephone 01372 803 675
 Fax 01372 803 678
 Email dps@heatweb.com
 Internet http://www.heatweb.com

The Institute of Plumbing

R/O Shops, 9-19 Manor Green Road, Epsom, Surrey KT19 8RA

SPECIFICATION 3331-2
Try Homes, Ashtead

06/02/01
Copies / revised specifications
can be obtained via fax / email
Heat Bank Thermal Store System  
HBPP System D  
Everest combination unit  
Single Heat Exchanger (30 ltr/min)  
Indirect  
40mm Foam Insulation  
High duty primary coil  
Y-Plan primary controls  
Sealed primary system  
8 litre Primary Expansion Vessel  
Fitted programmer  
Fitted Primary Pump, 5m head  
All fitted controls are wired  
Thermostatic Blending Valve 22mm  
Backup Immersion Heater  
PCB Wiring Centre  
Primary Filling Loop  
Cased  

Unit Code

 HBPP500-180-D3331-2

Capacity [litres]

 180

Base Diameter [mm]

 500

Overall Diameter [mm]

 580

Height [mm]

 1250

2   Plate Heat Exchanger
3   Heat Exchanger Pump
4   Flow Switch
5   Thermostatic Blending Valve, Mixcall III
6   Manual Air Vent
7   Automatic Air Vent
8   Filling Vent
9   Feed to Ball Valve
10  Isolating Valve
11  Y-Pattern Strainer (supplied loose)
12  Overflow
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
35  Three Port Mid Position Valve
38  Cylinder Thermostat
42  Wiring Centre

 
 
Notes..

The unit is fitted with a Mixcall III Thermostatic Blending Valve, to control the hot 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.

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. 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.