CONTENTS ADDITIONAL SYMBOLS CONTENTS Symbol Explanation ▶ Step in an action sequence Key to symbols and safety instructions ....2 Cross-reference to another part of the document Key to symbols .
PRODUCT DETAILS • Pump seizure protection function: SPECIFICATION – The connected pump is monitored and ran for a short period after Design and operation of this product conform to European 24 hours of downtime. This prevents the pump from seizing. Directives and the supplementary national requirements.
INSTALLATION INSTALLATION WALL MOUNTING ▶ Mount the module to a wall ( Fig. 4 to 6). 6 720 804 106-03.1O Fig. 3 Position of type plate Test values for the cylinder temperature sensor (included with the product) °C °C 14772 3723...
INSTALLATION DIN RAIL MOUNTING 3.2.1 CONNECTION OF BUS AND TEMPERATURE SENSOR (24 V) ▶ Mount the module to a DIN rail ( fig. 7). If the maximum cable length of the BUS connections between all BUS subscribers is exceeded or if the BUS system is realised as a ring structure, the system cannot be commissioned.
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INSTALLATION 7. Connect cable to plug and ensure it is connected to the right terminals ( chapter 3.2.3). 120/230VAC 6. 6..120/230VAC ..7. 7. 6 720 804 107-22.1O Fig. 10 Separate points of isolation 5.
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INSTALLATION 7. Connect cable to plug and ensure it is connected to the right terminals ELECTRICAL CONNECTION - STEP 6 ( chapter 3.2.3). 1. Route cable through a grommet. 2. Remove plug from the socket. 3. Connect cable to plug and ensure it is connected to the right terminals (...
(not supplied by Worcester, Bosch Group) those supplied by the manufacturer. Worcester, Bosch Group technical support may be contacted on the telephone number on the back of these instructions. 4. 4.
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INSTALLATION MID-POSITION (Y-PLAN) SYSTEM: VZ12 120/230 V AC N 43 N 14 II II 120/230 V AC ≤ 24 V IZ3 IZ4 120/230VAC 120/230VAC IN L IN L IN L IN 1 2 3 14 43 N 1 2 VZ12 230 V AC 230 V AC 6 720 804 107-18.1O Fig.
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INSTALLATION TWO-PORT VALVE (S-PLAN) SYSTEM: 120/230 V AC N 43 N 14 II II 120/230 V AC ≤ 24 V IZ2 IZ3 IZ4 120/230VAC 120/230VAC IN L IN L IN L IN 1 2 3 230 V AC 230 V AC CZ1 CZ2 6 720 804 107-19.1O Fig.
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INSTALLATION THREE CENTRAL HEATING CIRCUITS ONLY WITHOUT ELECTRONIC MIXING VALVES: TZ4* TZ5* TZ6* PZ4* PZ6* PZ5* 120/230 V AC N 43 N 14 II II 120/230 V AC ≤ 24 V IZ2 IZ3 120/230VAC 120/230VAC IN L IN L IN L IN 1 2 3 N L S...
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INSTALLATION TWO CENTRAL HEATING CIRCUITS WITHOUT ELECTRONIC MIXING VALVES AND ONE DOMESTIC HOT WATER CYLINDER CIRCUIT: TZ7* TZ8* PZ7* PZ8* 120/230 V AC N 43 N 14 II II 120/230 V AC ≤ 24 V IZ2 IZ3 TC1 T0 120/230VAC 120/230VAC L IN L IN L IN 1 2 1 2...
COMMISSIONING COMMISSIONING TROUBLESHOOTING First make all electrical connections and then carry out Only use original spare parts. Damage caused by the use the commissioning! of spare parts not approved for this product by the manufacturer are excluded from our guarantee. ▶...
6. Fit the cover. ENVIRONMENT / DISPOSAL Environmental protection is a fundamental corporate strategy of the Bosch Group. The quality of our products, their economy and environmental safety are all of equal importance to us and all environmental protection legislation and regulations are strictly observed.