Carrier 25hba - Page 6

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Table 1—Accessory Usage
Accessory
REQUIRED FOR LOW---AMBI-
ENT APPLICATIONS
(Below 55 °F)
REQUIRED FOR LONG LINE
APPLICATIONS* (Over 80 Ft)
REQUIRED FOR SEA
COAST APPLICATIONS
(Within 2 miles)
Crankcase Heater Yes Yes No
Evaporator Freeze Thermostat Yes
No
No
Winter Start Control Yes
No
No
Accumulator No
No
No
Compressor Start Assist Capacitor
and Relay
Yes
Yes
No
Motor Master® Control Yes{
No
No
Support Feet Recommended
No
Recommended
Liquid Line Solenoid Valve Yes
See Long ---Line Application
Guideline
No
Ball Bearing Fan Motor
Yes } No
No
* For Tu bing Set lengths between 80 an d 200 ft. horizontal or 20 ft. ver tical differential (250 ft Total Equivalent Length), r ef er to the Lon g Lin e Guidelines for
Air Conditioners an d 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
LIQUID
VAPOR (up to 80 ft)
Connection Diameter Tube Diameter Connection Diameter Ra ted Tube Diameter
018, 024 3/8 3/8 5/8 5/8
030, 036 3/8 3/8 3/4 3/4
042, 048 3/8 3/8 7/8 7/8
060 3/8 3/8 7/8 1--1/8
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
G u i d e l i n e --- A i r C o n d i t i o n e r s a n d H e a t P u m p s u s i n g R --- 2 2
25HBA