Toshiba A09-01P wayvalve for cooling connection, wayvalve diverter connection, Diverter Valve

Quick Reference Guide - Page 17

2-way valve (for cooling) connection

Required Valve Specification:

Electrical Specification: 230 V; 50 Hz; <100 mA

Return Mechanism: 2-wire spring return.

•The Hydro Unit has the facility to connect a 2-way valve to isolate Space Conditioning Units that do not perform cooling, when Cooling Mode is selected.

•Connect the 2-way valve in accordance with the diagram (opposite):-

3-way valve (diverter) connection

Required Valve Specification:

Electrical Specification: 230 V; 50 Hz; <100 mA

Valve Diameters: Port A, Port B: Ø 1 1/4"

Return Mechanism: 3 types of 3-way valve (diverter) can be used.

Set the 3-way valve in use with the DIP switch SW13-1 on the Hydro Unit board.

Diverter Valve	Description	SW13-1
Type 1	2-wire spring return	OFF
Type 2	3-wire SPST	OFF
Type 3	3-wire SPDT	ON

Continuous operation of the valve motor at the fully open position is not recommended.

•The 3-way diverter valve is used to select either domestic hot water or space heating.

•Connect the 3-way diverter valve in accordance with the diagram below:-