Fan Speeds For Breeam Compliance; Checking And Setting The Gas/Air Ratio - REMEHA Gas 320 Ace Installation And User Manual

7 Commissioning
7.2.3

Fan speeds for BREEAM compliance

Tab.50 Gas 320 Ace - Adjustment for BREEAM with gas type G20 (H gas)
Code Displayed text
DP003 Abs. max fan
DHW
GP007 Fan RPM Max
CH
GP008 Fan RPM Min
GP009 Fan RPM Start
Tab.51 Gas 620 Ace - Adjustment for BREEAM with gas type G20 (H gas)
Code Displayed text
DP003 Abs. max fan
DHW
GP007 Fan RPM Max
CH
GP008 Fan RPM Min
GP009 Fan RPM Start
7.2.4

Checking and setting the gas/air ratio

48
1. Enable Installer access.
1.1. Select the tile [
1.2. Enter code: 0012.
2. Select the tile [
3. Select Parameters, counters, signals.
4. Select Parameters.
5. Select the required parameter.
6. Change the setting.
To comply with the BREEAM regulation, the fan speeds need to be
adjusted.
For boiler Gas 620 Ace, apply the instructions to each boiler module.
1. Adjust the fan speed according to the tables below. The setting can be
changed with a parameter setting.
Description
Maximum fan speed on Domestic
Hot Water
Maximum fan speed during Central
Heating mode
Minimum fan speed during Central
Heating + Domestic Hot Water
mode
Fan speed at appliance start
Description
Maximum fan speed on Domestic
Hot Water
Maximum fan speed during Central
Heating mode
Minimum fan speed during Central
Heating + Domestic Hot Water
mode
Fan speed at appliance start
2. Check the setting of the gas/air ratio.
For boiler Gas 620 Ace, apply the instructions to each boiler module.
Make sure that the other boiler module is out of operation during this
check and/or setting.
The flue gas analyser must meet the requirements of BS 7927 or BS-EN
503793 and be calibrated according to the manufacturer's requirements.
The flue gas analyser must have a minimum accuracy of ±0.25% O
CO .
2
].
].
285 355
5700 5800
5700 5800
1450 1500
2500 2500
570 710
5700 5800
5700 5800
1900 1850
2500 2500
Important
Make sure to apply the O
2
430 500 575
3600 4000 4500
3600 4000 4500
970 1050 1100
1300 1400 1400
860 1000 1150
3600 4000 4500
3600 4000 4500
1300 1250 1400
1300 1400 1500
values specified for BREEAM.
7734324 - v.07 - 21092022
650
4300
4300
1100
1400
1300
4300
4300
1350
1600
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2