ActronAir ESP Digital SRD173C - Piping and Electrical Installation; Field Pipe Connection and Refrigerant Piping

Installation and Commissioning Guide
Split Ducted ESP Digital
Installation and Commissioning Guide - Split Ducted ESP Digital Units
Doc. No.0525-077 Ver. 2 200129
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• Firmly tighten the set bolts back the compressors onto
the unit. Recommended torque is 131 Nm. Its is critically
important for the grommet not to be compressed.
• Check to make sure that there are no damage to the
piping systems.
TIGHTEN BOLTS
(4-pcs / Comp.)
• Braze refrigeration piping. Refer to piping sections
for details of field pipe sizes and piping installation
procedure.
10. Field Pipe Connection
CAUTION
The units described in this guide uses R-410A refrigerant
This operates at a pressure approximately 1.6 times higher than a similar systems using R-22. When installing equipment
using R-410A refrigerant, there are number of standards that must be met:
• The system of this unit operates with Polyolester (POE) oil that rapidly absorbs moisture.
• The maximum time any system can be opened to atmosphere is 15 minutes.
• It is important to work with absolute cleanliness.
• Brazing must be done with the use of Nitrogen to avoid carbon deposits into the pipes.
• The system must be evacuated thoroughly to 500 microns (see evacuation procedure).
• The system must always be charged with R-410A refrigerant in liquid state.
• Never allow R-410A refrigerant to vent into the atmosphere. It is an offence to release refrigerant in Australia.
• Always reclaim refrigerant using equipment and container dedicated for R-410A system use only.
• Only qualified persons are allowed to perform any work described in this guide.
• All work must be carried out in accordance with Australia and New Zealand refrigerant handling code of practice.
Maximum allowable total equivalent field pipe length is 60 metres, see diagram below. This includes all the equivalent
pipe fitting loses and vertical height difference. Vertical height difference must not exceed 20 metres. Table 1 below
shows the equivalent straight pipe length of elbow fittings.
EQUIVALENT STRAIGHT PIPE LENGTH OF ELBOW FITTINGS (METRES)
Pipe size Nominal
Diameter
90
o
Long Radius
Elbow
90
o
Short Radius
Elbow
45
o
Long Radius
Elbow
45
o
Short Radius
Elbow
9.52 (3/8”)
0.24 0.36 0.09 0.14
15.88 (5/8”)
0.30 0.45 0.15 0.23
19.05 (3/4”)
0.40 0.60 0.18 0.27
22.22 (7/8”)
0.46 0.69 0.21 0.32
25.40 (1”)
0.52 0.78 0.24 0.36
28.58 (1-1/8”)
0.55 0.83 0.27 0.41