9

OperatingRange

Ensure that the system operates within the application gu idelines
shownin the following tables.

Cooling operatingrange:

Maximum Minimum
DB
_F(_C)
WB
_F(_C)
DB
_F(_C)
WB
_F(_C)
OutdoorUnit 125
(51.7) --- 55
(12.8) ---
IndoorUnit 95
(35)
71
(21.7)
67
(19.4)
57
(13.9)

Heating operatingrange:

Maximum Minimum
DB
_F(_C)
WB
_F(_C)
DB
_F(_C)
WB
_F(_C)
OutdoorUnit 75
(23.9)
67
(19.4)
---20
(---28.9) ---
IndoorUnit 80
(26.7)
71
(21.7)
55
(12.8) ---

Accessories

An extensive list of field installed accessories is available for both
indoor and outdoor units. Identify what accessories, if any, are
required for the application at hand and consult the separate
installation instructions for the accessories. Some of the
accessories, especially on the indoor units, can be installedmuch
easierif p lanned ahead.
INSTALLATION

Complete Pre--installationCheck s

1. Unpack Unit --Store the indoor and outdoor units in the
original packaging until it is mov ed to the final site for in-
stallation.
2. Inspect Shipment-- Upon receipt of shipmen t, check the
indoor andoutdoor units for damage. If there isany dam-
age, forward claim papers directly to the transportation
company. Manufactureris not responsible for damage in-
curred in transit.
3. Inspect Parts Supplied With Units – Check all items
against parts list (see page 7). If any items are missin g, noti-
fy your distributor or Carrieroffice. To prevent loss or
damage, leaveall parts in original packages until installa-
tion.

ConsiderSystem Requirements

1. Consult localbuilding codes and NEC for special installa-
tionrequirements.
2. When decidingthe location of theindoor and outdoor units,
ensure that the piping run does no t exceed the allowed dis-
tances listed in Table3.
3. Make sure theindoor and outdoor units are easilyaccessible
to electrical power.
4. Allow sufficient clearances for airflow, wiring, refrigerant
piping,and servicing theunit. See Fig.1 through Fig. 5.
5. Condensate pipingcan be directed through the inside wall
toan approved drain or straightoutside.

INSTALL INDOOR UNIT

Planthe installationcarefully beforeyou begin.
1. Select indoor unit location.If possible, place the unit adja-
cent to an outsidewall if fresh air is required,and ensure
that the location allows for complete air distribu tion.
NOTE: If unit is not installed adjacent to an outside
walland fresh air is required,a power ventilationkit ac-
cessory is available.
2. Remove the indoor unit fromthe carton and place it upside
downand perform the followingsteps:
a. Remove sidepanels by sliding forward,then away from
sidesof the unit . SeeFig. 9.
A09525
Fig.9 --Removal of Mounting Brackets fromIndoor Unit
b. Remove air filters from inletgrilles; then remove and
retain screws securing inlet grilles to indoor unit.
c. Remove inlet grilles fro m indoor unitby sliding for-
ward.
d. If a size 024 indoor unit isto be matched with a size
018outdoor unit, switch the Molexplug on the motor.
TheMolex plugs are labeledas 018 or 024.
e. Loosen hex bolts on the sideof the unit and remove the
mounting brackets by sliding them out in direction
shownin Fig. 10. Allowapproximately3/8 inch space
betweenthe bolt head andthe unit as shown in Fig. 10.
A09527
Fig. 10 --Installin g Hex--HeadMou nting Bolts
in Fan Coil Unit
f. If pipingis going to be run from the righthand side,
openknock--out by removingthe pre--splitportion in
therear of the right hand side panelwith a saw or cutter
knife.
40QAC/38HDR -- 40QAQ/38QR
R