Carrier 40RU, Installation, Start-Up And Service Instructions Manual

Page: 2 / 40

2
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could cause in personal
injury or death.
Before performing service or maintenance operations
on unit, always turn off main power switch to unit and
install lockout tag. Unit may have more than one
power switch.
!
WARNING
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could cause in personal
injury,death and/or equipment damage.
Puron
R
(R--410A) refrigerant systems operate at
higher pressures than standard R--22 systems. Do not
use R--22 service equipment or components on Puron
refrigerant equipment.
!
WARNING
PERSONAL INJURY AND ENVIRONMENTAL
HAZARD
Failure to follow this warning could cause in personal
injury or death.
Relieve pressure and recover all refrigerant before
system repair or final unit disposal.
Wear safety glasses and gloves when handling
refrigerants. Keep torches and other ignition sources
away from refrigerants and oils.
!
WARNING
CUT HAZARD
Failure to follow this caution may result in personal
injury.
Sheet metal parts may have sharp edges or burrs. Use
care and wear appropriate protective clothing, safety
glasses and gloves when handling parts and servicing
40RU units.
CAUTION
!
UNIT OPERATION HAZARD
Failure to follow this caution could cause equipment
damage.
Ensure voltage listed on unit data plate agrees with
electrical supply provided for the unit.
CAUTION
!
PRE--INSTALLATION
1. The power supply (v, ph, and Hz) must correspond to
that specified on unit rating plate.
2. The electrical supply provided by the utility must be
sufficient to handle load imposed by this unit.
3. Refer to Installation, General section (page 2) and
Fig. 1 and Fig. 2 for locations of electrical inlets, con-
densate drain, duct connections, and required clear-
ances before setting unit in place.
4. This installation must conform with local building
codes and with the NEC (National Electrical Code) or
ANSI (American National Standards Institute)/NFPA
(National Fire Protection Association) latest revision.
Refer to provincial and local plumbing or wastewater
codes and other applicable local codes.
Moving and Storage -- To transfer unit from truck to
storage site, use a fork truck. Do not stack units more than
2 high during storage. If unit is to be stored for more than
2 weeks before installation, choose a level, dry storage
site free from vibration. Do not remove plastic wrap or
skid from unit until final installation.
Rigging --
All 40RU Series units can be rigged by using
the shipping skid. Units are shipped fully assembled. Do
not remove shipping skids or protective covering until unit
is ready for final placement; damage to bottom panels can
result. Use slings and spreader bars as applicable to lift
unit.
INSTALLATION
General -- Allow the following clearances for service
access and airflow:
S
Rear: 3 ft (914 mm) [2
1
/
2
ft (762 mm) with electric heat
accessory]
S
Front: 2
1
/
2
ft (762 mm)
S
Right Side: 3
1
/
2
ft (1067 mm)
S
Left Side: 2
1
/
2
ft (762 mm)
For units equipped with an economizer, refer to the
accessory installation instructions for additional clearance
requirements. Be sure floor, wall, or ceiling can support
unit weight (Tables 1A – 1F). See Fig. 1 and Fig. 2 for
dimensions.
Uncrating -- Move unit as near as possible to final
location before removing shipping skid.
Remove metal banding, top skid, and plastic wrap.
Examine unit for shipping damage. If shipping damage is
evident, file claim with transportation agency. Remove
base skid just prior to actual installation.
Check nameplate information against available power
supply and model number description in Fig. 3.
NOTE : Be sure to remove the styrofoam shipping pad
from the thermostatic expansion valve (TXV). Verify that
it has been removed. See Fig. 5.
Accessories -- Refer to instructions shipped with each
accessory for specific information.
40RU