Uk/ie installation instructions pump group 6 720 648 721-000.1td for wall hung gas-fired condensing boiler gb162-50/65/80/100 672 0813174 (2014/09).
Contents 6720813174 (2014/09) 2 contents 1 key to symbols and safety instructions . . . . . . . . . . . . . . . . . . . 2 1.1 key to symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2 safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2 reg...
Regulations 6720813174 (2014/09) 3 2 regulations 2.1 about these instructions these installation instructions contain important information about the safe and proper installation of the gb162-50/65/80/100 pump group. These installation instructions are for competent heating engineers (e.G. Gas safe ...
Dimensions 6720813174 (2014/09) 4 4 dimensions fig. 2 dimensions and connections [mm] 1) do not remove the cap cs (not used in uk) 2) the pump group is accessory and can be ordered separately. This figure shows a pump group, that isn’t ment for dhw supply, but only for central heating hot water supp...
Installation 6720813174 (2014/09) 5 5 installation 5.1 general installation instructions ▶ connect all pipes without forcing them into place. ▶ make sure that the connections are tight and carry out a gas and water tightness test after completing the connection work ( boiler installation and servi...
Installation 6720813174 (2014/09) 6 removing the non-return valve remove the non-return valve before installing the heating flow and return circuits otherwise it cannot be fully removed anymore! ▶ remove the pump [1]. ▶ remove the flat rubber seal [2]. Fig. 5 removing the pump ▶ remove the non-retur...
Installation 6720813174 (2014/09) 7 fig. 9 installing the isolating valves [1] pressure relief valve [2] isolating valve, red [3] flow connection [4] screw fitting 1" female thread (accessory) [5] pump [6] isolating valve, blue [7] return connection ▶ install a shut-off valve for filter cleaning imm...
Installation 6720813174 (2014/09) 8 ▶ re-fit the retaining pin through the valve body. Fig. 11 re-fitting the retaining pin ▶ fit the compression elbow [1] (supplied packed with the boiler) using thread sealant. ▶ fit a 22 mm metal discharge pipe [2]. Fig. 12 fitting the compression elbow with disch...
Installation 6720813174 (2014/09) 9 fig. 16 condensate drain pipe [1] condensate drain pipe 5.8 connecting the expansion vessel (accessory) connecting the expansion vessel in a multi-boiler configuration (cascade configuration) in cascade systems only one expansion vessel is required for the heating...
Commissioning 6720813174 (2014/09) 10 ▶ lay the pump connection cable from the boiler through the hole under the electrical connection box downwards ( fig. 20, [1] and fig. 21, [1]). Fig. 20 laying the pump connection cable [1] pump connection cable fig. 21 laying the pump connection leads [1] pum...
Technical specifications 6720813174 (2014/09) 11 7 technical specifications fig. 24 residual head downstream of the pump group (ups 25-80) - with and without a non-return valve [l/h] volume flow [mbar] residual head [1] residual head downstream of the pump group without a non-return valve (ups 25-80...
Worcester, bosch group cotswold way, warndon, worcester wr4 9sw. Tel. 0330 123 9559 worcester, bosch group is a brand name of bosch thermotechnology ltd. Worcester-bosch.Co.Uk 6720813174 worcester, bosch group: technical support: 0330 123 3366 appointments: 0330 123 9339 spares: 0330 123 9779 litera...
