To avoid dmnage to tile refiigerant coils and electrical com-
ponents, use recommended screw sizes only. Use cme
when &illing holes.
Install Motormaster [ Controls -- Only one Motormaster I
control is required per unit. The Motormaster [ control must be
used in conjunction with the accessory 0 ° F low mnbient kit
(purchased separately). The Motormaster I device controls out-
door fan no. 1 while outdoor fans no. 2 and 3 are sequenced off
by the accessory 0° F low ambient kit.
A_zessorv 0 ° F Low Ambient Kit -- Install the accessory 0° F
low ambient kit per instruction supplied with accessory.
Sensor Assembly -- Install the sensor assembly in the location
shown in Fig. 18.
Motor Mount -- To ensure proper fan height, replace file exist-
ing motor mount with the new motor mount provided with
accessory.
Tran@nw_er (460 and 575-v Units Only) -- On 460 and
575-volt units a transformer is required. The transformer is
provided with the accessory and must be field-installed.
MotormasWr I Control -- Recommended mounting location is
on the inside of the panel to the left of the control box. The
control should be mounted on the inside of the panel, verti-
c:dly, with leads protruding from bottom of extrusion.
MOTORMASTER-------
SENSOR
LOCATION
i
HAIRPIN END
NOTES:
1. All sensors are located on the eighth hairpin up from the bottom.
2. Field-installed tubing insulation is required to be installed over the TXV
(thermostatic expansion valve) bulb and capillary tube for proper operation
at low ambients. Tubing insulation is only required on the portion of suc-
tion line located between indoor and outdoor section.
Fig. 18 -- Motormaster_) I Sensor Locations
Step 10- Adjust Factory-Installed Options
PREMIERLIN KTM CONTROL -- The PrelnierLink control-
let is available as a special order from the factory and is com-
patible with the Cmrier Comfort Network® (CCN) system.
This control is designed to allow use_ the access and ability to
change factory-defined settings, thus expanding the function of
the stan&trd unit control board. Carrier's diagnostic stan&trd
tier display tools such as Navigato( r_'_ device or Scrolling
Marquee c_m be used with the PremierLink controlle_:
The PremierLink controller (see Fig. 19) requires the use of
a Cmrier electronic thermostat or a CCN connection for time
broadcast to initiate its internal timeclock. This is necessary for
broadcast of time of day functions (occupied/unoccupied). No
sensors are supplied with the field-mounted PremierLink
control. The factory-installed PremierLink control includes
only the supply-air temperature (SAT) sensor and the outdoor
air temperature (OAT) sensor as standard. An indoor air quality
(CO2) sensor can be added as an option. Refer to Table 5 for
sensor usage. Refer to Fig. 20 for PremierLink controller wir-
ing. The PremierLink control may be mounted in the control
panel or an mea below the control panel.
NOTE: PremierLink controller version 1.3 and kiter is shipped
in Sensor mode. If used with a fl_ermostat, the PremierLink
controller must be configured to Thermostat mode.
Install the Supply Air Temperature (SAT) Sensor -- When
the unit is supplied with a factory-mounted PremierLink con-
trol, the supply-air temperature (SAT) sensor (33ZCSENSAT)
is factory-supplied and wired. The wiring is routed from the
PremierLink control over the control box, through a grommet,
into the fan section, down along the back side of the fan, and
along the fan deck over to the supply-air opening.
The SAT probe is wire-tied to the supply-air opening (on the
horizontal opening end) in its shipping position. Remove the
sensor for installation. Re-position the sensor in the flange of
the supply-air opening or in the supply air duct (as required by
loc_d codes). Drill or punch a 1/2-in. hole in the flange or duct.
Use two field-supplied, self-drilling screws to secure the sensor
probe in a horizontal orientation.
NOTE: The sensor must be mounted in the discharge airstream
downstream of file cooling coil and any heating devices. Be
sure the probe tip does not come in contact with any of the unit
or heat surfaces.
Outdoor Air Temperature (OAT) Sensor -- When the unit is
supplied with a factory-mounted PremierLink control, the
outdoor-air temperature sensor (OAT) is factory-supplied and
wired.
Install the Indoor Air Quality (COa2 Sensor -- Mount the
optional indoor air quality (CO2) sensor according to manufac-
turer specifications. A separate field-supplied transformer must
be used to power the CO2 sensor:
Wire the CO2 sensor to the COM and IAQI terminals of J5
on the PremierLink controlle_: Refer to the PremierLink Instal-
kition, Start-up, and Configuration Instructions for detailed
wiring and configuration information.
12
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