Gree Hydro Box NRQR30L/A-T - Common Malfunction and Troubleshooting; Error Code List; Troubleshooting Guide

Hydro Box
26
Fig.4.21
Notes:
①
The black part is the bar for setting DIP.
②
Please set the DIP according to the actual status of project.
③
If you want to use the solar function, please consult the manufacturer.
4.7 Engineering Accessories Selection and Installation
4.7.1 Circle Pump Installation
4.7.1.1 Circle Pump Selection
Select the suitable circle pump according to the pressure drop of the water way and the flow
rate in the following table.
Model
NRQR16L/A-T
NRQR30L/A-T
Rated Water Flow
L/Min
46
86
4.7.1.2 Circle Pump Wiring
(1)Select a suitable relay.
(2)Connect the wires of the relay to the terminal block XT1-3 and XT1-4 respectively.
Fig.4.22
Note:
Make sure to supply external power with the circle pump.
4.7.2 2Way Valve Installation
4.7.2.1 2Way Valve Selection
Hydro box supports following 2way valve.
Type
Power
Wires
Supported
Normal Closed
220-240V ~50Hz
208-230V ~60Hz
3-wire Yes
220-240V ~50Hz
208-230V ~60Hz
2-wire Yes