Installation guide

Table1 - Refrigerant Connections and Recommended Liquid and Vapor 1hbe Diameters (in.)
Information is Specific to 25HNA6 and 25HNA9 Models
UNIT SIZE
25HNA624
25HNA636
25HNA648
25HNA660
RATED VAPOR*
Tube
Diameter
5/8
3/4
7/8
1- 1/8
Connection
Diameter
3/8
3/8
3/8
3/8
LIQUID
Tube
Diameter
3/8
3/8
3/8
3/8
Connection
Diameter
5/8
3/4
7/8
7/8
3/4
3/4
7/8
1 - 1/8
25HNA924 3/8 3/8 3/4
25HNA936 3/8 3/8 3/4
25HNA948 3/8 3/8 7/8
25HNA960 3/8 3/8 7/8
Units are rated with 25 ft. (7.6 m) of lineset. See Product Data sheet for performance data when using different size and length linesets.
Notes:
1. Do not apply capillary tube or the fixed orifice indoor coils to these units.
2
For Tubing Set lengths between 80 and 200 ft. (24.38 and 60.96 m) horizontal or 20 ft. (6.10 m) vertical differential (250 ff./76.2 m Total Equivalent Length),
refer to the Residential Piping and Long Line Guideline for Air Conditioners and Heat Pumps using Puron<_ Refrigerant.
Table 2 - Accessory Usage
REQUIRED FOR LOW-AMBIENT REQUIRED FOR SEA COAST
REQUIRED FOR LONG LINE
ACCESSORY COOLING APPLICATIONS APPLICATIONS
APPLICATIONS*
(Below 55°F/12.6°C) (Within 2 miles/3.22 km)
Crankcase Heater Standard Standard Standard
Standard with Infinity _' Control
Evaporator Freeze Protection (Low Ambient not allowed with No No
non-communicating thermostat)
Standard with Infinity Control
Winter Start Control (Low Ambient not allowed with non- No No
communicating thermostat)
Compressor Start Assist Capacitor Standard on 25HNA6 models. Standard on 25HNA6 models. Standard on 25HNA6 models
and Relay:l: Not required for 25HNA9 Not required for 25HNA9 Not required for 25HNA9
Standard with Infinity Control (Low
Low-Ambient Control ambient not allowed with non-corn- No No
municating thermostat)
Support Feet Recommended No Recommended
Liquid-Line Solenoid Valve No Yes No
Puron Refrigerant Balance Port Yes1" Yest Yes1"
Hard-Shut Off TXV
For tubing set lengths between 80 and 200 ft. (24.38 and 60.96 m) horizontal or 20 ft. (6.10 m) vertical differential (total equivalent length), refer to the
Residential Piping and Long Line Guideline for Air Conditioners and Heat Pumps using Purom_ Refrigerant.
1- Required on all indoor units. Standard on all new Puron refrigerant fan coils and furnace coils.
$ Information is specific to 25HNA6 and 25HNA9 models.
Pu ron,,,
the environmenta ly sould r el_ige_a_t
ISO 9001:2000
@
AN{ Standard 210:249
Ua_ry Neat Pumps
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