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 1884-1
R F HOPKINS & SON PLUMBING & HEATING

28/09/00

Heat Bank Thermal Store System  
Xcel unit for connection to remote F+E  
Twin heat exchangers (45 ltr/min)  
Directly heated from remote source  
35mm Foam Insulation  
GX-Plan primary controls  
Directly Pumped Heating Circuit  
RX1 Programmable Room Thermostat  
Fitted Primary Pump, 5m head  
All fitted controls are wired  
Thermostatic Blending Valve 1''  
Backup Immersion Heater  
Flow Switch By-Pass  

Unit Code

1884.1.11884.1.21884.1.3

Capacity [litres]

180210250

Base Diameter [mm]

450450450

Overall Diameter [mm]

520520520

Height [mm]

135015001800

2   Plate Heat Exchanger
3   Heat Exchanger Pump
4   Flow Switch
5   Thermostatic Blending Valve, Aquamix 1"
6   Manual Air Vent
8   Vent
11  Y-Pattern Strainer (supplied loose)
13  Cold Feed / Expansion
14  Immersion Heater 3kW Incaloy with Stat
16  Cold Mains In, 28mm
17  Hot Mains Out, 28mm
18  Drain Cock
19  Flow From Boiler
20  Return to Boiler
23  Flow to Heating Circuit
24  Return from Heating Circuit
27  Boiler Pump UPS 15/50
28  Heating Circuit Pump UPS 15/60
33  Danfoss Radio Receiver
38  Cylinder Immersion Thermostat Danfoss ITC
41  Primary Blending Valve

The GX recovery system takes full advantage of the boiler output, providing exceptional recovery times, and increased volumes of hot water.  Hot water is typically available within 5 minutes from cold start.  The system allows the return temperature to the boiler to be set, maximising the efficiency of condensing boilers.  
The system does not use any motorised valves, either for hot water of heating, and instead uses two primary pumps. This  increasing reliability while making servicing easier.
The Flow Switch is fitted with a 22mm By-Pass. This can be used to reduce the mains pressure drop across the unit. The valve should be balanced so that the Heat Exchanger Pump [3] switches on at the minimum hot water flow rate.

The RX1 room stat communicates with the TP5E RF receiver (fitted and wired to the Heat Bank Thermal Store) using a digital radio signal. The room stat runs for two years of two standard AA batteries, requires absolutely no wiring, and can be easy positioned (or re-positioned) to suit. Another huge benefit, is the ability of the room stat to heat the property to different temperatures, at different times. This allows large energy savings to be made, while increasing comfort levels.