Daikin RXQ18P7W1BA Specifications download pdf (Page 26)

Up to 3 outdoor units can be connected to 1 power supply and can be turned on sequentially. This allows the

number of breakers and their capacities to remain small and simplifies wiring (for models of 10Hp or less).

Sequential Start

The cross wiring check facility available on the VRV is the first of its type in the industry to warn operatives of

connection errors in inter unit wiring and piping. This function identifies and alerts system errors by means of

on/off LEDs on the outdoor unit’s PC boards.

Cross Wiring Check

A simple 2-wire non-shielded multiplex transmission system links each outdoor unit to multiple indoor units

using one 2-core wire, thus simplifying the wiring operation.

Furthermore, outdoor units have power connection outlets on side and front, resulting in easier installation

and maintenance and saving space when rows of units are connected together.

Simplified Wiring

The unified Daikin REFNET piping system is especially designed for

simple installation

The use of REFNET piping in combination with electronic expansion

valves, results in a dramatic reduction in imbalance in refrigerant flowing

between indoor units, despite the small diameter of the piping.

REFNET joints and headers (both accessories) can cut down on installation

work and increase system reliability.

Compared to regular T-joints, where refrigerant distribution is far from

optimal, the Daikin REFNET joints have specifically been designed to

optimise refrigerant flow.

Unified REFNET piping

REFNET joint T-joint

Attached insulators for REFNET joint

Attached insulators

for REFNET header

REFNET header

REFNET joint

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Daikin RXQ18P7W1BA Specifications Page 26