Indoor residential and commercial models
temperature modulated with electronic ignition
suitable for heating potable water - not approved for space heating purposes
(intended for variable flow applications) (65 pages)
▶ Have the heating system inspected and serviced regularly by an approved contractor. ▶ Use a CO detector which gives an alarm in good time if CO escapes. Greenstar combi 100 p / 151 p – 6720872363 (2024/05)
Do not use this boiler if any part has been under water. Immediately call a trained and certified service technician to inspect the boiler and to replace any part of the control system and any gas control which has been under water. Greenstar combi 100 p / 151 p – 6720872363 (2024/05)
[13] Heating return pipe these operating instructions in the control panel cover. [14] Cold water pipe [15] Gas pipe [16] DHW pipe [17] Supply pipe [18] Boiler high limit dial Greenstar combi 100 p / 151 p – 6720872363 (2024/05)
▶ How to adjust the room temperature ▶ How to heat economically and save energy reset 6 720 641 933-53.1O Fig. 5 The burner ON indicator lamp lights up if the burner is operating. Greenstar combi 100 p / 151 p – 6720872363 (2024/05)
Alternatively if you prefer switching the appliance OFF: ▶ Ask a trained and certified heating contractor to mix anti-freeze (see installation instructions) into the heating water. All DHW pipes and DHW tank must be completely drained. Greenstar combi 100 p / 151 p – 6720872363 (2024/05)
Recirculation pump If there is a DHW recirculation pump installed, use a timer program to control its operation according to the specific requirements (e.g. morning, afternoon, evening). Greenstar combi 100 p / 151 p – 6720872363 (2024/05)
Those details can be found on the rating plate. Greenstar (e. g. ZWB28-3 A ...): ........................Serial number: ........................Date commissioned: ........................System installed by: ........................Greenstar combi 100 p / 151 p – 6720872363 (2024/05)
Set room thermostat to the ECO-button not lit = comfort desired temperature. mode ECO-button lit = economy mode Key pad lock Frost protection reset reset 6 720 641 933-68.1O 6 720 641 933-83.1O Greenstar combi 100 p / 151 p – 6720872363 (2024/05)
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50 Wentworth Avenue Londonderry, NH 03053 Tel. 603-552-1100 Fax 603-965-7581 www.bosch-homecomfort.us U.S.A. Products manufactured by Bosch Thermotechnik GmbH Junkersstrasse 20-24 D-73249 Wernau www.bosch-homecomfortgroup.com Bosch Thermotechnology Corp. reserves the right to make changes without notice due to continuing engineering and technological advances.
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