Checking The Air Filter; Unit Support; Non-Rinnai Field Supplied Accessories; When To Call For Service - Rinnai DONSR07Z72 Owner's Manual

GENERAL USER GUIDE

CHECKING THE AIR FILTER

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Filters are supplied and fitted by your installer and are not part of the Rinnai system. A dirty air filter will cause
excessive strain on the compressor and fan blower motor� This can cause the compressor to overheat and
automatically shut down� In the extreme, the components will fail and will need to be replaced�
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To avoid inefficient or failed operation of your unit, CHECK THE FILTER AT LEAST EVERY 2 TO 4 WEEKS.
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Replace filters(s) when necessary, or clean them if they are the reusable type. Disposable filters should be
replaced by similar, new filters of the same grade and dimensions.
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Reusable (permanent) type filters should be washed in a solution of cold to tepid water and very mild
detergent, then rinsed and thoroughly dried� THE FILTER MUST BE COMPLETELY DRY BEFORE BEING
REPLACED�
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To avoid prolonged shutdown of your system while a filter is being cleaned, you may wish to have an extra
filter on hand. This would allow you to rotate between the two with minimal downtime for your comfort
system. Extra filters are available from your Installer or a Rinnai Spare Parts outlets.
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Should you have any questions about the removal and/or cleaning of you filter(s), please contact your
Installer for assistance�
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If grass clippings, leaves, shrubbery and debris are kept away from the Outdoor Unit, minimal care should
be sufficient to keep the system functioning properly. However, if the outdoor coil becomes dirty, use a soft
brush or vacuum and soft brush attachment to clean the exterior surface� If dirt is trapped deep within the
coil, contact your Installer or Rinnai for service�

UNIT SUPPORT

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The indoor Fan Coil Unit (FCU) should be located in a position and in such a manner as specified in the
Installation Instructions� The FCU should be maintained at a position that ensures condensate drainage
from the unit� In an attic space, ideally the unit will be easily and safely accessible from the ceiling access
panel, have a suitable catwalk and platform, and if necessary a service light�
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The outdoor Condensing Unit (CDU) requires adequate support to ensure it is level� CDUs generate
condensate water in the heating mode; depending on local codes this may need to be discharged in a
prescribed manner�
NON–RINNAI FIELD SUPPLIED ACCESSORIES
Your home comfort system may include field-supplied accessories that do not form part of this regular maintenance
cycle. These may include: ductwork, fittings, filters, grilles, zone motors, auxiliary heaters, third party controls and
other non-Rinnai supplied items�
These items may also require attention in accordance with the Original Equipment Manufacturer's (OEM)
recommendations� Your installer can provide details in this regard, and should be consulted for any warranty or
service matters for these items� Whilst they are an integral part of your home comfort system, these non-Rinnai
items are not covered by your Rinnai Product Warranty�
Third party controls and zoning systems that interfere with the correct operation of your Rinnai Heat Pump system,
and any consequential damages to Rinnai equipment as a result of such incorrect operation, will not be covered
by Rinnai Warranty�

WHEN TO CALL FOR SERVICE

If ANY of the following conditions occurs, turn off your unit immediately!
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The power cord is damaged or abnormally warm
CAUTION •
There is a burning smell coming from the unit
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The unit emits loud or abnormal sounds
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When operated if a circuit breaker (safety, ground) is thrown or a fuse is blown
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Water leaks from the indoor unit even when the humidity level is low
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Parts are ejected out of the unit
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Foreign objects fall into the unit
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If the unit has been exposed to flooding.
DO NOT ATTEMPT TO FIX THESE YOURSELF! TURN OFF THE AIR CONDITIONER & CONTACT RINNAI.
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