Other Auxiliary Heat Sources; Gate-Controller - Gree GRS-CQ8.0Pd/NaE-K Manuel D'utilisateur

Air-to-water Heat Pump Split Versati
12. 3-Way Valve
The 3-way valve 2 is required for the sanitary water tank. Its role is flow switching between the under floor
heating loop and the water tank heating loop.
General Information
Type
SPDT
3-wire
(1) SPDT = Single Pole Double Throw. Three wires consist of Live1 (for selecting Flow B), and Neutral (for
common).
(2) Flow A means 'water flow from the indoor unit to under floor water circuit'.
(3) Flow B means 'water flow from the indoor unit to sanitary water tank'.
Follow steps below to wire the 3-way valve:
Follow below procedures Step 1 ~ Step 2.
Step 1. Uncover front cover of the unit and open the control box.
Step 2. Find terminal block and connect wires as below.
• The 3-way valve should select water tank loop when electric power is supplied to wire (OFF) and wire (N).
• The 3-way valve should select under floor loop when electric power is supplied to wire (ON) and wire (N).
• (ON): Line signal (Water tank heating) from the main board to the 3-way valve
• (OFF): Line signal (Under floor heating) from the main board to the 3-way valve
• (N): Neutral signal from the main board to the 3-way valve

13. Other Auxiliary Heat Sources

Other auxiliary heat sources are allowed for the equipment and controlled in such a way that the mainboard will
output 230V when outdoor temperature is lower than the set point for startup of the auxiliary heat source.

14. Gate-controller

If there is gate control function, installation guide follow as:
(1) GRS-CQ8.0Pd/NaE-K,GRS-CQ10Pd/NaE-K
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.
Power
Selecting "Flow A" between "Flow A" and "Flow B"
230V 50Hz ~AC
Selecting "Flow B" between "Flow B" and "Flow A"
XT2
XT2
Operating Mode
7 8 9
3-Way Valve 2
WARNING
13 14
N
Other Thermal
XT3
1 2
220VAC
Gate-Controller
32
SPLIT TYPE
Supported
Yes
Yes