2
3/15 Rev. C 157872
INTRODUCTION
Thank you for purchasing this
cabinet. This manual contains important instructions for installing, using and servicing
an Open Air Merchandiser. Read all these documents carefully before installing or servicing your equipment. This
manual should be left in the care of the store owner or manager.
STORE CONDITIONS / LOCATION
The OAM cases are designed to operate in the controlled environment of an air conditioned store. The store
temperature should be at or below +75
°
F and a relative humidity of 55% or less. At higher temperature or humidity
conditions, the performance of these cases may be affected and the capacity diminished. It is not uncommon in a
newly constructed store for the temperature and humidity to be above design conditions. These excessive conditions
may produce sweating in the case until the store is operational and the ambient environment is more desirable.
The OAM case should not be positioned where it is directly exposed to rays of the sun or near a direct source of
radiant heat or air flow. No HVAC return or supply air ducts may be located near case openings. This will adversely
affect the case air flow and will result in poor performance. Do not open windows or doors that will affect the case air
flow. The maximum air velocity near the case air return is 50 FPM. If this case is to be located against a wall there
should be at least a 6” space between the wall and the back of the case. The cabinet also requires a clearance of 10”
at the top. This space will allow for the circulation of air behind the case.
These cases should always be loaded properly. This unit will operate differently when loaded or unloaded. Consult the
section of this manual that specifies loading procedures.
A pipe loop acts as a trap is included with each case. It is important that each case has this installed. Consult the
section of this manual for installing and piping the drain.
NOTICE
Read this manual before installing your cabinet. Keep the manual and refer to it before
doing any service on the equipment. Failure to do so could result in personal injury or damage to the cabinet.
DANGER
Improper or faulty hook-up of electrical components of the refrigeration units can result in
severe injury or death. All electrical wiring hook-ups must be done in accordance with all applicable local,
regional or national standards.
NOTICE
Installation and service of the refrigeration and electrical components of the cabinet must be performed by a
refrigeration mechanic and/or a licensed electrician.
The portion of this manual covering refrigeration and electrical components contain technical instructions intended only
for persons qualified to perform refrigeration and electrical work.
This manual cannot cover every installation, use or service situation. If you need additional information, call or write
our Customer Service Department.
