Midea LRSJ-120/NYN1, Technical Manual

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8.6 Hydraulic circuit test pressure: 3 bars - Hydraulic circuit operating pressure: 1.5 bar
pressure drop 2.2 mCE (0.22 bar)
7. Water pump selection
Model Water flow Recommendatory flow
LRSJ-60/NYN1 0.8~20m3/h
3m3/h
LRSJ-80/NYN1 0.8~20m3/h 4m3/h
LRSJ-120/NYN1 1.5~20m3/h 5m3/h
LRSJ-140/NYN1 1.5~20m3/h
5.8m3/h
8. Tools required for installation
- 1 set of flat head screwdrivers
- 1 set of crosshead screwdrivers
- 1 cutter
- 1 wire stripper
- 1 pipe or round head spanner 13
- 1 ratchet spanner
- 1 pliers
- 2 straps (for handling)
9. Electic connection
9.1 Power specification
Diameter of the thinnest cable (mm
2
)
(Metal pipe and synthetic resin pipe wiring)
Manual Switch
(A) Item
Model
Power Supply
Size (continious length
＜ 30 m
Earthling Wire Capacity Fuse
LRSJ-60/NYN1 220~240V-1ph-50Hz 2.5 2.5 ≥ 30 20
LRSJ-80/NYN1 220~240V-1ph-50Hz 2.5 2.5 ≥ 30 20
LRSJ-120/NYN1 220~240V-1ph-50Hz 4.0 4.0
≥
30 25
LRSJ-140/NYN1 220~240V-1ph-50Hz 4.0 4.0
≥
30 25
9.2 Power Supply Wiring .
A. Power Supply Schematic Diagram
Earthing
Water Heating Unit
Manual Switch
Power
supply
Creepage Breaker
Warming:
Although there is a leakage protector in the electric control box of the unit, for the security reason, it is
required that a leakage protection equipped cable and Earthing should be applied for the unit according to
the requirement on the above diagram.
B. Cable Diameter Selection
The power supply wiring refers to the wiring to the main line (a) of junction box and the wiring (b) to the
power supply equipment. Please select the cable diameter according to the following methods