Water Piping Installation; Tank Unit Refrigerant Piping Installation; Dhw Tank Water Quality - Panasonic PAW-VP1000LDHW Technical Manual

Water Piping Installation

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4.1
4.2
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Water Piping Installation
General notes
● Please request a licensed technician to install this water circuit.
● This water circuit must comply with all relevant European and national regulations,
i.e. IEC/EN 61770 European Council Directive 98/83 EC.
● Be careful not to deform the piping with excessive force when doing piping connec-
tion job.
● When connecting pipes to tank, always use brass between pipe and tank sleeve to
prevent corrosion between base material.
● Choose proper sealer which can withstand the pressures and temperatures of the
system. When tank is to be connected ensure the pipings are clean before water
piping installation is carried out.
● Water operating pressures DHW tank (Minimum ~ Maximum): 0.05 MPa – 0.95 MPa

Tank unit refrigerant piping installation

1. Please make flare after inserting flare nut (located at joint portion of tube assembly)
onto the copper pipe. (In case of using long piping)
2. Do not use pipe wrench to open refrigerant piping. Flare nut may be broken and
cause leakage. Use proper spanner or ring wrench.
3. Connect the piping:
● Align the center of piping and sufficiently tighten the flare nut with fingers.
● Further tighten the flare nut with torque wrench in specified torque as stated in
the table.
Piping size (Braising tank)
Model
Gas
PAW-VP1000L 3/4"
PAW-VP750L 3/4"
PAW-VP500L 5/8"
PAW-VP200L 5/8"
PAW-VP380L 3/4"
Please refer to chapter 4 for Refrigerant connecting pipes.

DHW tank water quality

Please refer to "User manual and technical documentation" handbook delivered with the tank
product.
Liquid
1/2"
1/2"
3/8"
3/8"
1/2"
PAW-VP•LDHW - Technical Manual – 2019-11