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Benefit
Description
Setting
Effect
Notes
140/348
Siemens Building Technologies
HVAC Products
4.70 Functional test of oil- / gas-fired boiler
• Individual relays or combinations of relays can be controlled for test purposes
To check the functionality, the functional test enables individual terminals or combina-
tions of terminals to be controlled.
Setting range
--- / 0...5
The following test steps are available (can be selected with the + / - buttons):
---
No test
0
Everything OFF
1
Boiler pump (Q1) ON
2
In addition, burner stage 1 ON (Q1 + K4)
3
In addition, burner stage 2 ON (Q1 + K4 + K5)
4
In addition, maintained boiler return temperature / bypass pump ON (Q1 + K4 +
K5 + Q12 / Y8)
5
Maintained boiler return temperature / bypass pump OFF (Q1 + K4 + K5 + Y7)
The functional test is only possible for internal heat sources.
With test steps 0...3, the mixing valve for the maintained boiler return temperature can
be in any position. The position of the mixing valve will only be defined with test steps 4
(ON) and 5 (OFF).
The functional test will be terminated when leaving the operating line.
Basic Documentation RVP540 / RVP550
Description of the heating engineer settings
Unit
Factory setting
–
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CE1P2488en
18.10.2002
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