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9
Model ERCH-HP Energy Recovery Unit
Handling
While this unit was constructed with quality and
dependability in mind, damage still may occur during
handling of the unit for installation. Exercise extreme
caution to prevent any damage from occurring to
the refrigerant system. This unit contains a system
pressurized with refrigerant that, if damaged, could
leak into the atmosphere or cause bodily harm due to
the extreme cold nature of expanding refrigerant. Use
protective equipment such as gloves and safety glasses
to minimize or prevent injury in case of a system leak
during installation.
The system design and installation should follow
accepted industry practice, such as described in
the ASHRAE Handbook. Adequate space should be
left around the unit for piping coils and drains, filter
replacement, and maintenance. Sufficient space should
be provided on the side of the unit for routine service
and component removal should that become necessary.
Lifting
1. Before lifting, be sure that all shipping material has
been removed from unit.
2. To assist in determining rigging requirements,
weights are provided in the Installation, Unit
Weights and Recommended Roof Opening section
of this manual.
3. Unit must be lifted by all lifting lugs provided on
base structure.
4. Rigger to use suitable mating hardware to attach to
unit lifting lugs.
5. Spreader bar(s) must span the unit to prevent
damage to the cabinet by the lift cables.
6. Always test-lift the unit to check for proper balance
and rigging before hoisting to desired location.
7. Never lift units by weatherhoods.
8. Never lift units in windy conditions.
9. Preparation of curb and roof openings should be
completed prior to lifting unit to the roof.
10. Check to be sure that gasketing (supplied by
others) has been applied to the curb prior to lifting
the unit and setting on curb.
11. Do not use fork lifts for handling unit.
WARNING
All factory provided lifting lugs must be used when
lifting the units. Failure to comply with this safety
precaution could result in property damage, serious
injury, or death. Unit weights assume rooftop
configuration with weatherhoods, filters, outdoor air
damper, six row DX coil, integral condensing section
and an indirect gas fired furnace.
Lifting Lugs
Any lifting lug that is located as shown should be
removed in order to permit installation of the P trap
drain kit.
NOTE
On some models, one lifting lug may be positioned
directly in front of the condensate drain connection.