Paul thermos 300 DC, Operating Instructions Manual

Page: 70 / 72

Issue 19/05/09
Subject to change in the interest
of technical progress.
Checklist B
for maintenance work
by technical staff
© Paul Wärmerückgewinnung GmbH • August-Horch-Straße 7 • 08141 Reinsdorf • Deutschland
Tel: +49(0)375-303505-0 • Fax: +49(0)375-303505-55 • E-Mail: info@paul-lueftung.de • Internet: www.paul-lueftung.de
Maintenance work
−
Inspection of the ventilation unit every 2 years as per DIN 1946/Part 6 Pt.6 and DIN 1946/Part 2, Pt.7
as per. VDI 6022 (4/2006) point 5.3.2 must take place hygiene inspections with RLT plants without
humidification in the distance from 3 years (… with humidification every 2 years)
−
Please enter: Year, Date, Name
−
Remarks on condition → informal record
201... 201... 201... 201... 201...
1. Clean heat exchanger with warm water
< 50°C and washing-up liquid – in case of
calcification: vinegar solution
Air-to-air heat transducers are as per DIN
1946/6 to clean (point 12,3 (3)) annually
2. Check all filters for contamination,
moisture, tightness and corrosion;
replace where necessary
a
in the MVHR unit
b at outdoor air intake (pre-filter – e.g.
gable wall or ground heat exchanger)
c
at extract air valves
d check filter change intervals by
inspecting the records of the tenant /
owner
e record any filter change in writing
3. Check intake air ducts for contamination
on a random basis (also in the ground
heat exchanger)
4.
Check silencers / sound attenuators
a
at the MVHR unit
b
in the ventilation system (if accessible)
c at overflow passages/openings (e.g.
doors, partition walls) (if any)
d
clean where necessary
5. Check duct heaters (frost protection
and back-up duct heater)
a
clean to remove dirt where necessary
b
functional check
c
Thermal protection switch function
d check heat insulation (visual)
6. Check valve settings (air flow rate)
a
as projected
b or according to different user experience
7. Clean valves
8.
condensate drain (U bend clogged?)
check water level in U bend
a
condensate pan
b Condensate drainage (siphon clogs?)
Water filling in the siphon examine
c Water inlet (if available)
9. Check airtightness in MVHR unit
a
pull the mains plug
b disconnect the extract air fan
electrically (put it out of circuit)
c disconnect the extract air duct from the
MVHR unit.
d
connect the mains plug & switch on the
intake air fan
e Exhaust air duct from the MHRV unit
separate
f Power supply plugs fresh air fan
switch on