4
E SERIES INSTALLATION MANUAL
Moving and Storage
Move units in the normal “up” orientation. Horizontal units may be moved and stored per the information on the packag-
ing. Do not stack more than three units in total height. Vertical units may be stored one upon another to a maximum height
of two units. Do not attempt to move units while stacked. When the equipment is received, all items should be carefully
checked against the bill of lading to be sure all crates and cartons have been received. Examine units for shipping damage,
removing the units from the packaging if necessary. Units in question should also be internally inspected. If any damage is
noted, the carrier should make the proper notation on the delivery receipt, acknowledging the damage.
Unit Location
Locate the unit in an indoor area that allows for easy removal of the filter and access panels. Location should have
enough space for service personnel to perform maintenance or repair. Provide sufficient room to make water, electrical
and duct connection(s). If the unit is located in a confined space, such as a closet, provisions must be made for return air
to freely enter the space by means of a louvered door, etc. Any access panel screws that would be difficult to remove after
the unit is installed should be removed prior to setting the unit. On horizontal units, allow adequate room below the unit for
a condensate drain trap and do not locate the unit above supply piping.
Care should be taken when units are located in
unconditioned spaces to prevent damage from frozen water lines and excessive heat that could damage electrical
components.
Installing Vertical Units
Vertical units are available in left or right air return configurations. Top flow
vertical units should be mounted level on a vibration absorbing pad slightly larger
than the base to provide isolation between the unit and the floor. It is not necessary
to anchor the unit to the floor (see right).
Bottom flow units should be mounted level and sealed well to floor to prevent
air leakage. Bottom flow units require the supply air opening to be cut at least 1/2-
inch larger than the unit’s air outlet. Protect the edges of combustible flooring with
sheet metal over-wrap or other non-combustible material.
If access to the left side of the unit will be limited after installation, remove the
two mounting screws on the left side of the control box before setting the unit (leave
the two front mounting screws intact). This will allow the control box to be removed
with only the two front mounting screws for future service.
WARNING:
Before performing service or maintenance operations on a system, turn off main
power switches to the indoor unit. If applicable, turn off the accessory heater power switch.
Electrical shock could cause personal injury.
Installing and servicing heating and air conditioning equipment can be hazardous due to system pressure and electrical
components. Only trained and qualified service personnel should install, repair or service heating and air conditioning equip-
ment. Untrained personnel can perform the basic maintenance functions of cleaning coils and cleaning and replacing filters.
All other operations should be performed by trained service personnel. When working on heating and air conditioning equip-
ment, observe precautions in the literature, tags and labels attached to the unit and other safety precautions that may apply.
Follow all safety codes. Wear safety glasses and work gloves. Use a quenching cloth for brazing operations and have a
fire extinguisher available.
Safety Considerations
General Installation Information
Figure 1: Vertical Unit Mounting
Vibration
Absorbing
Mesh
or
Air
Pad
