WaterFurnace Envision (XL) - Manual (Page 4)

ENVISION 7-25 TONS INSTALLATION MANUAL
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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
equipment. 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 equipment, 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.
Moving and Storage
Move units in the normal “up” orientation. Horizontal units may be moved and stored per the information on the packaging.
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
Prior to setting the unit in place, remove and discard the compressor hold down
shipping bolt located at the front of the compressor mounting bracket.
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).
Safety Considerations
General Installation Information
Figure 1: Vertical Unit Mounting
(NXV/NLV 080-300)