Carrier BASE 25HBR Installation Instructions Manual page 6

Accessory
Crankcase Heater
Evaporator Freeze Thermostat
Winter Start Control
Accumulator
Compressor Start Assist Capacitor
and Relay
Motor Master® Control
Support Feet
Liquid Line Solenoid Valve
Ball Bearing Fan Motor
* For Tubing Set lengths between 80 and 200 ft. horizontal or 20 ft. vertical differential (250 ft Total Equivalent Length), refer to the Long Line Guidelines for Air
Conditioners and Heat Pumps using R---22.
{ Required for low---ambient controller (full modulation feature) and Motor Master control only.
Table 2—Refrigerant Connections and Recommended Liquid and Vapor Tube Diameters (In.)
UNIT SIZE
018, 024
030, 036
042, 048
060
Notes:
1. Tube diameters are for total equivalent lengths up to 80 ft..
2. Do not apply capillary tube or fixed orifice indoor coils to these units.
* For Tubing Set lengths between 80 and 200 ft. horizontal or 20 ft. vertical differential (250 ft.Total Equivalent Length), refer to the Longline
Guideline --- Air Conditioners and Heat Pumps using R---22
IMPORTANT: Check to be certain factory tubing on both
indoor and outdoor unit has not shifted during shipment. Ensure
tubes are not rubbing against each other or any sheet metal. Pay
close attention to feeder tubes, makings sure wire ties on feeder
tubes are secure and tight.
Be sure field wiring complies with local and national fire, safety,
and electrical codes, and voltage to system is within limits shown
on unit rating plate. Contact local power company for correction
of improper voltage. See unit rating plate for recommended
circuit protection device.
NOTE: Operation of unit on improper line voltage constitutes
abuse and could affect unit reliability. See unit rating plate. Do
not install unit in system where voltage may fluctuate above or
below permissible limits.
CAUTION
!
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Installation of filter drier in liquid line is required.
Table 1—Accessory Usage
REQUIRED FOR LOW---AMBI-
ENT APPLICATIONS
(Below 55 °F)
Yes
Yes
Yes
No
Yes
Yes{
Recommended
No
Yes{
LIQUID
Connection Diameter
3/8
3/8
3/8
3/8
REQUIRED FOR LONG LINE
APPLICATIONS* (Over 80 ft.)
Yes
No
No
No
Yes
No
No
See Long --- Line Application
Guideline
No
Tube Diameter Connection Diameter Rated Tube Diameter
3/8 5/8
3/8 3/4
3/8 7/8
3/8 7/8
Install Liquid Line Filter Drier Indoor
Refer to Fig. 7 and install filter drier as follows:
1. Braze 5 in. liquid tube to the indoor coil.
2. Wrap filter drier with damp cloth.
3. Braze filter drier to 5 in. long liquid tube from step 1.
4. Connect and braze liquid refrigerant tube to the filter drier.
Fig. 7 --- Liquid Line Filter Drier
6
REQUIRED FOR SEA
COAST APPLICATIONS
(Within 2 miles)
No
No
No
No
No
No
Recommended
No
No
VAPOR (up to 80 ft.*)
5/8
3/4
7/8
1- - 1/8
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