5
Table 1 – Refrigerant Connections and Recommended Liquid and Vapor Tube Diameters (in.)
UNIT SIZE
LIQUID VAPOR*
Connection
Diameter
Tube
Diameter
Connection
Diameter
Max (Rated)
Diameter
Minimum Tube
Diameter
25VNA024
3/8 3/8 7/8 7/8 5/8
25VNA036
3/8 3/8 7/8 7/8 5/8
25VNA048
3/8 3/8 7/8 1 --- 1 / 8 3/4
25VNA060
3/8 3/8 7/8 1 --- 1 / 8 3/4
* Units are r ated with 25 ft. (7.6 m) of lineset. See Product Data sheet for performance data when using different size and l ength line sets.
Notes:
1. Do not apply capillary tube indoor coils to these units.
2. For Tubing S et len gths between 80 a nd 200 ft. (24.38 and 60.96 m) h orizontal and / or greater th a n 20 ft. (6.1 m) vertical differential, an accessory Liquid Line
Solenoid mu st be in stalled.
Table 2 – Accessory Usage
ACCESSORY
REQUIRED FOR
L O W --- A M B I E N T C O O L I N G
APPLICATIONS
(Below 55F/12.8_C)
REQUIRED FOR LONG LINE
APPLICATIONS*
(Over 80 ft/24.38 m)
REQUIRED FOR SEA
COAST APPLICATIONS
(Within 2 miles/3.22 km)
Installations with Radio
Frequency Interference
Concerns in the Range
of2to30MHZ
Crankcase Heater Standard
Standard
Standard Standard
Evaporator Freeze Protection Standard with Infinityt Control No No No
Liquid--- Line Solenoid Valve No
Yes
No No
Low---Ambient Control Standard with Infinity Control No No No
Puron Refrigerant Balance Port
H a r d --- S h u t O f f T X V
Ye s {
Ye s {
Ye s { Ye s {
Support Feet Recommended No Recommended No
Winter Start Control
Standard with Infinity
Control
Standard with Infinity
Control
Standard with Infinity
Control
Standard with Infinity
Control
EMI Kit No No No Ye s
* For tubing set lengths between 80 a nd 200 ft. (24.38 and 60.96 m) h orizontal or 20 ft. ( 6.10 m) vertical differential (total equivalent length), an accessory
Liquid Line Solenoid must be installed.
{ Required on all indoor units. Standard on all new Puron refrigerant fan coils and furnace coils.
Standard = Standard for all new Puron refrigerant fan coils and furnace coils.
To Next Page
Loading...
