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 1700-1

19/07/00
Copies / revised specifications
can be obtained via fax / email

Designed for Mr. Phillips
Heat Bank Thermal Store System  
Stowaway advanced F+E  
Single Heat Exchanger (30 ltr/min)  
Indirect  
40mm Foam Insulation  
High duty primary coil  
Y-Plan primary controls  
Smartfit Controls  
All fitted controls are wired  
Backup Immersion Heater  
Manual Fill - No Overflow  
Primary Filling Loop  
Thermostatic Blending Valve 22mm  
Cased  

Unit Code

1700.1.1

Capacity [litres]

130

Base Diameter [mm]

450

Overall Diameter [mm]

530

Height [mm]

1190

1   Integral Expansion Vessel (Unpressurised)
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   Integral Overflow Chamber
11  Y-Pattern Strainer (supplied loose)
13  Connection to Expansion Vessel
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
29  Primary Coil Balancing Valve
31  Primary Filling Point, with Check Valve
33  Honeywell Smartfit Control Centre
34  Honeywell Smartfit Room Unit, 7 day
35  Honeywell Smartfit Mid-Position Valve
38  Honeywell Smartfit Cylinder Thermostat
39  White Coated Steel Casing
40  Tight Fitting Lid
54  Filling Loop
56  Manual Bleed Valve
65  Release Valve
66  Overfill Drain Cock

 
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 an Integral Overflow Chamber [8], which traps small volumes of water discharged as a result of overfilling. Water in the chamber can be drained off via the Overfill Drain Cock [66], which is to be OPEN during filling to provide an indication of when the unit is full. The unit MUST be watched during filling as excessive overfilling will result in over-spill onto the floor.
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).
  Smartfit 
Honeywell,  has swept aside the traditional problems and hasslesassociated with controls wiring and significantly reduced installation time andcosts into the bargain.
At the centre of Smartfit is a new connection box whichprovides plug-in or simple 2-wire connection for all space heating and hot watercontrols, completely eliminating the need for complex wiring diagrams.  Allthe controls have been designed for low voltage, polarity free connection.  Servicing  is quicker, chances of error are reduced to the minimum, and can beachieved with total confidence.  The elegant Smartfit controller puts easy programming and diagnostics at yourfingertips.  A built-in commissioning sequence and simple manual overridesassure maximum user convenience.
The unique built-in diagnostics programme automatically indicates a fault inthe system and highlights where the fault lies, cutting out guesswork and hassleand saving valuable time.
Extensive information, including  can be obtained from the HoneywellWeb Site
http:// honeywell1.datareturn.com/UK/homes/smartfit.htm