Description Of Various Steps; Calling Up The Latest Fault (Service Function 6.A); Fresh Water Filter In The Cold Water Pipe; Plate-Type Heat Exchanger - Bosch Greenstar combi 100 p Installation And Service Instructions For Contractors
Residential gas condensing boiler
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Also See for Greenstar combi 100 p:
- Operating instructions manual (32 pages) ,
- Operating instructions manual (12 pages)
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Heat exchanger
NOTICE:
Damage to the coating of the heat exchanger.
▶ Cleaning of the heat exchanger should not be necessary until five
years after the initial commissioning.
▶ Only use a Bosch cleaning blade and Bosch cleaning brush.
▶ Only clean heat exchanger in case if soiling is clearly visible.
Heatronic boiler control
In case of a component defect, a fault is shown on the display.
The Heatronic boiler control monitors all safety and control components.
NOTICE:
The Heatronic boiler control can be damaged by leaking water.
▶ Cover the Heatronic prior to working on water filled components.
Important notes
An overview of the faults can be found on page 56.
• The following analytical tools are needed for service and
maintenance:
– Electronic flue gas analyzer for CO
temperature
– (0 to 30 mbar)
– pH Test strips
– Glycol tester of antifreeze is being used
• Special tools are not required.
• Approved lubricants are:
– For parts touched by water: Unisilkon L 641 (part-
# 8 709 918 413 0)
– or fittings: HFt 1 v 5 (part-# 8 709 918 010 0).
▶ Use part-# 8 719 918 658 0 as heat conducting paste.
▶ Use only genuine Bosch spare parts.
▶ Request spare parts.
▶ Replace removed gaskets and O-rings with new ones.
HAfter the inspection/maintenance
▶ Re-tighten all loosened threaded connections.
▶ Restart the appliance ( page 36).
▶ Check all connections used during maintenance for leaks.
▶ Check the gas-air ratio.
14.1
Description of various steps
14.1.1 Calling up the latest fault (service function 6.A)
▶ Select service function 6A (page 43).
An overview of the faults can be found on page 56.
Greenstar combi 100 p / 151 p
, O
, CO, and flue gas
2
2
14.1.2 Fresh water filter in the cold water pipe
▶ Close cold water tap.
▶ Depressurize the cold water pipe.
▶ To access the filter remove the safety clip (step 1), pull out the pipe
(step 2), and remove the filter from the pipe (step 3).
▶ If necessary, clean with plastic brush under running water.
1
Fig. 63 Strainer in the cold water pipe
14.1.3 Plate-type heat exchanger
If the DHW output on the combi boiler is significantly reduced:
▶ Check filter in the cold water pipe for contamination ( Fig. 49).
▶ Depressurize the appliance.
▶ Remove plate type heat exchanger and replace
-or-
▶ Descale with descaling agent approved for stainless steel (Grade
316-1.4401).
To remove the plate type heat exchanger:
▶ Unplug electrical connections.
▶ Remove hose from safety relief valve.
Fig. 64 Unplugging electrical connections / removing hose from safety
relief valve
Inspection and maintenance | 49
3
2
6 720 641 933-92.1o
6 720 641 933-46.2O
6720872361 (2017/04)
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Do you have a question about the Greenstar combi 100 p and is the answer not in the manual?
Questions and answers
What’s the best control module for unit can’t get the cmz 100
If the CZM 100 is unavailable, the best alternative control module for the Bosch Greenstar Combi 100 P is the Bosch remote control CRC 200 (part number 7 738 111 034). The CRC 200 is a programmable room thermostat that measures room temperature and automatically adjusts to the desired temperature. It can be used independently or in combination with the CRC 100.
This answer is automatically generated
What’s the best 2 or 3 zone control module
@Mr. Anderson
What’s the alternative to CZM100
The Bosch remote controls CRC 100 and CRC 200 can be used as alternatives to the CZM 100 for the Bosch Greenstar Combi 100 P, as they are compatible and can be optionally combined with CZM 100.
This answer is automatically generated
If the CZM100 is discontinued, what’s a comparable module. I have Greenstar Combi 100p/151p zw842-3a2353124 model 7-738-100-611
A comparable module to the CZM100 for the Bosch Greenstar Combi 100p/151p is the Cascade Module ICM 100 (part number 7 719 003 528).
This answer is automatically generated
If the CZM100 is discontinued what’s a comparable module? I have a green star Combi zwb42-3a23 s3124 model 7-738-100-611
Good morning, my Bosch Greenstar will go up to 183 degrees and then shut down. It will maintain a cool 58 degrees overnight. What is the problem?
A Bosch Greenstar combi 100 p could shut down at 183 degrees due to overheating protection. If the appliance reaches a high temperature, it may automatically shut down to prevent damage. Overnight, it maintaining a cool 58 degrees suggests that the system did not restart, possibly due to a safety lockout or a gas supply issue. Potential causes include a faulty temperature sensor, a blocked heat exchanger, insufficient water circulation, or a failure in the gas control system. Checking for error codes, ensuring proper water flow, and inspecting the gas supply can help diagnose the issue.
This answer is automatically generated
@Mr. Anderson good morning sorry I missed your response. I was able to figure out the problem after I read the manual. Thank you for your response.
@John Benvin