Name: Worcester GR2300iW C
Brand: Worcester
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Product Information

Greenstar 2000 – 6 721 820 552 (2021/02)

Legend to figure 3:

[1] Inspection aperture

[2] Flue connection

[3] Heating block temperature limiter

[4] Electrode set

[5] Ignition transformer

[6] Control pressure test point

[7] Gas-air mixing chamber

[8] Heating block

[9] Gas valve

[10] Condensate sump

[11] Cover for inspection aperture

[12] Diverter valve motor

[13] Diverter valve

[14] Automatic air vent

[15] Heating pump

[16] Pump speed adjuster and LED indicator

[17] Pressure relief valve (heating circuit)

[18] Plate heat exchanger

[19] KEY accessory housing (wireless gateway)

[20] Pressure gauge

[21] Position for code plug (KIM)

[22] Control unit

[23] DHW temperature sensor

[24] Pressure switch

[25] Flow turbine

[26] Fuse (replacement)

[27] Condensate trap

[28] Data plate

[29] Condensate trap locking mechanism

[30] Gas supply pressure test point

[31] Flue gas temperature limiter

[32] Flow temperature sensor

[33] Schrader valve

[34] Expansion vessel

[35] Fan

[36] Air-gas manifold with non-return valve

[37] Heating flow

[38] Flow temperature sensor at heating

[39] Bracket

[40] Combustion air intake

3.7 Product data for energy consumption

The product data on energy consumption can be found in the operating

instructions for the user.

3.8 Standard accessories

3.8.1 Appliance accessories

Table 5 Appliance accessories

3.8.2 Programmer/timer accessories

The programmers/timers listed can be used with the appliances stated

on the front of this manual.

Table 6 Control accessories

Bosch EasyControl smart control system

Table 7 EasyControl accessories

Basic weather compensation sensor

Outdoor weather sensor (to activate on-board simple Weather

Compensation).

Table 8 Control accessories

The outdoor weather sensor is supplied with the Sense II. It is optional

with the Comfort+ II RF. Weather compensation is available with the

EasyControl without the need for a physical outdoor sensor, however, it

can improve control accuracy for installations in isolated micro-climates

or highly sheltered locations such as valleys.

Part number Description

7 733 600 266 Greenstar System filter (22mm mini)

7 733 600 236 Greenstar System filter (22mm)

7 733 600 237 Greenstar System filter (28mm)

7 733 600 476 Greenstar System filter brass (22mm)

7 716 192 746 Worcester CondenseSure

7 716 192 610 Keyless filling link kit

7 733 600 091 Heat exchanger cleaning kit

7 736 902 107 Low NOx code plug kit 25kW

7 736 902 108 Low NOx code plug kit 30kW

7 736 900 525 Greenstar Xtra FGHR

Part number Description

7 733 600 332 MT20 mechanical timer

7 733 600 333 MT20RF mechanical thermostat

7 738 110 054 Sense I

7 738 111 064 Sense II (including weather sensor)

1) Preheat time control available.

7 738 112 324 Comfort+ II RF

7 738 112 338 Comfort+ stat RF

2) Must be used with an external proprietary 230V timer.

Part number Description

7 736 701 341 EasyControl (white)

1) Preheat time control available.

7 736 701 392 EasyControl (black)

7 738 112 351 EasyControl RF Key

7 736 701 555 EasyControl TRV set (white)

7 736 701 556 EasyControl TRV set (black)

8 750 000 270 EasyConstrol smart TRV (individual)

Part number Description

7 716 192 764 Outdoor weather sensor

Brand	Worcester
Model	GR2300iW C
Category	Boiler
Language	English

Worcester GR2300iW C Installation And Maintenance Instructions

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