Technical data

Initial Start-up and Service
21
Steps (continued)
19. Check condensate drain
S ervice
1. Check that condensate can drain
freely at the siphon trap B.
2. If necessary clean siphon trap B by
removing retaining clip A and
siphon trap B.
3. After cleaning the siphon trap B, fill
it with water, re-attach it and secure
with retaining clip A.
If the condensate does not drain freely,
condensate will accumulate in bottom
part of boiler resulting in a burner
shut-down (fault message).
Installation Instructions
Neutralization Unit
(if applicable)
20. Check neutralization unit (if applicable) Accessory
S ervice
1. Check the pH value of the
condensate with pH measuring strip.
If the pH value is less than 6.5,
replace granulate.
pH measuring strip must be field
supplied.
2. If contaminated:
Rinse neutralization unit with tap
water.
3. Add granulate as marked.
The granulate is consumed as it
neutralizes the condensate. The red
marking indicates the min. filling level.
Installation Instructions
Neutralization Unit
5418 911 v1.6
Fig. 13
B Siphon trap
C Flexible discharge tubing
D Discharge tube
B
C
D
IMPORTANT
IMPORTANT
IMPORTANT