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1002595 ISSUE 5 M172 VARIHEAT
When e Variheat leaves e Danerm Ltd. factory it is fully tested and is
ready to operate when connected to e correct power supply, services and
ductwork. The default settings allow e Variheat to be powered and started
safely, provided e pre-commissioning checklist has been actioned.
Pre-commissioning checklist
y In order for e Variheat to be properly commissioned aer installation, e
following actions are essential:
y The pool hall structure is complete and sealed according to e design
specification.
y All ductwork is fully installed and finished, including all inlet and outlet
grilles.
y LPHW connections are complete and e heat source is installed, fully
commissioned and operational (AA+LPHW models only).
y All electrical connections are complete and all power and control systems
are wired and fully commissioned.
Initial start-up
Aer installation and completion of e services on e pre-commissioning
checklist, e Variheat can be started:
y Connect power by turning on e local isolator.
y Confirm e red power light illuminates.
y The touchscreen should turn on and go rough a start-up sequence aer
a short delay. If e touchscreen does not start, check:
– Correct phase rotation
– Control MCB inside e electric box is turned on
– Touchscreen cable connections
y When e touchscreen displays e first home screen, e Variheat can be
turned on via e touchscreen (see User Settings).
The Variheat should be started before commissioning to ensure e pool
hall air has reached design temperature prior to commissioning. The default
settings will normally allow e Variheat to stabilise e conditions ready for
commissioning.
Commissioning
For full commissioning procedure, please refer to separate commissioning
document and report, which should be completed fully. Summary of
commissioning procedure:
Pool hall and plant room
9 Check – is e building finished in accordance wi e original plans and
specification, ready for commissioning? Check current temperatures and
humidity, calibrate air/water temperature and humidity sensors.
9 Check – is Variheat service and maintenance access adequate?
Ductwork and air flows
9 Check – is all ductwork and any plenum chamber insulated? Special
attention should be made to e insulation of any exhaust air and fresh air
inlet ducting to prevent condensation problems.
9 Check – are ere any significant draughts in e pool hall (or plant room
if used as a plenum) rough poorly fitting doors, windows, pipe ducts,
etc? This will let in unwanted ambient air, affecting control, eciency and
energy usage.
9 Check – are exhaust air and fresh air ductwork properly sealed from plant
room and oer parts of e building?
9 Check – e above should be checked by measuring plant room and pool
hall air temperatures. If e plant room is acting as a plenum chamber bo
temperatures should correspond. If e plant room air temperature is lower,
en ambient air is leaking in. This leak should be located and rectified.
9 Check – are all air inlets and outlets free from obstructions? Are exhaust
air and fresh air grilles adequately separated and not allowing recirculation
from exhaust to inlet?
9 Check – are air filters clean?
9 Action – measure air volumes and commission fan speeds.
Pool water
9 Check – is pool cover installed and used?
LPHW (AA+LPHW models only)
9 Check – is LPHW connected correctly and insulated?
9 Check – is LPHW flow rate correct?
9 Check – size and type of LPHW heat source?
9 Record – LPHW flow and return temperatures wi air heat exchanger in
operation.
Electrical
9 Check – is electric installation complete?
9 Check – is local isolator present?
9 Check – is MCB suitable for e Variheat model installed?
9 Record – MCB details
9 Check – is fan rotation direction correct?
9 Record – which customer terminals are in use.
9 Record – compressor and fan running amps.
9 Check – is auto-restart on power loss set to On or Off?
4.0 AFTER INSTALLATION
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