Heaters

Section Code 1475 : Combination Boilers and water jacketed tube heaters with Thermal Storage. Greater than 15 litres. Heat retained in water heaters will cause expansion of water after closure of draw-off taps and valves. Provision for expansion of water must be made to accommodate excess pressure with the system. Particular care is required where check valves are positioned, or loose jumper valves are thought to be upstream of the heater.

Back To Directory Sections

WRAS Approval Number: 1607341

Floor standing gas fired condensing combination boiler incorporating a 47 litre primary store. Domestic hot water is via a plate heat exchanger. The combination boiler is supplied with a temporary filling loop. Maximum primary working pressure is 2.5 bar. Maximum secondary working pressure is 10.0bar. Maximum operating temperature 60°C

  • Section: 1475 Heaters
  • Section Subtitle: Combination Boilers and water jacketed tube heaters with Thermal Storage. Greater than 15 litres. Heat retained in water heaters will cause expansion of water after closure of draw-off taps and valves. Provision for expansion of water must be made to accommodate excess pressure with the system. Particular care is required where check valves are positioned, or loose jumper valves are thought to be upstream of the heater.
  • WRAS Approval Number: 1607341
  • Expiry date: 31/07/2021
  • Size: 22mm compression
  • Marking: Worcester brand on front casing. Data label on bracket with brand and other etchnical information.
  • Installation Requirements R001
  • Model
    7 731 600 098 Greenstar Highflow 440ErP 7 731 600 099 Greenstar Highflow 440ErP LPG 7 731 600 100 Greenstar Highflow 550ErP 7 731 600 101 Greenstar Highflow 550ErP LPG
  • Manufacturer: Bosch Thermotechnology Ltd
    Company Name
    Bosch Thermotechnology Ltd
    View All Listings by this Company

Print This Approval


WRAS Approval Number: 1711356

Range of indirect heat interface units providing heating and instantaneous hot water. The product incorporates a temperature & pressure control valve. The secondary circuit incorporates an expansion vessel and expansion relief valve (pre-set at 3.0 bar). The units incorporate a temporary filling loop (incorporating a double check valve, suitable for backflow prevention against Fluid Category 3) to the inlet control group (pressure reducing valve pre-set at 3.0 bar/pressure relief valve set at 6.0 bar). The discharge from the inlet control group is via tundish (meeting the requirements of an air gap to drain). Products are supplied with cylinders of 80L - 215L capacity (dependant on model). Maximum working pressure primary (district heating) 10.0 bar. Maximum working pressure secondary (space heating) 2.5 bar. Maximum working pressure of domestic hot water circuit is 2.5 bar. Maximum operating temperature of the primary circuit 95°C, and domestic hot water at 90°C.

  • Section: 1475 Heaters
  • Section Subtitle: Combination Boilers and water jacketed tube heaters with Thermal Storage. Greater than 15 litres. Heat retained in water heaters will cause expansion of water after closure of draw-off taps and valves. Provision for expansion of water must be made to accommodate excess pressure with the system. Particular care is required where check valves are positioned, or loose jumper valves are thought to be upstream of the heater.
  • WRAS Approval Number: 1711356
  • Expiry date: 30/11/2022
  • Note: The filling loop supplied is to be installed with the appropriate backflow prevention device in accordance with clause G24.2, Guidance to the Water Supply (Water Fittings) Regulations 1999.
  • Size: ¾” captive nut
  • Marking: Reliance logo on adhesive label on body.
  • Installation Requirements R001
  • Model
    RTIU708002, RTIU708003, RTIU708004 & RTIU708005
  • Factor: Reliance Worldwide Corporation (UK) Limited
    Company Name
    Reliance Worldwide Corporation (UK) Limited
    View All Listings by this Company

Print This Approval


Show Per Page
5102050Show All

Back To Directory Sections

Page of