1.2 Use conditions of the unit
1. INTRODUCTION
（Unit:℃）
Ambient
temperature
Outlet water
temperature
Heating operating range
a. The standard voltage of power supply is 380-415V 3N~50Hz, the minimum allowable voltage is 342V, and the maximum voltage is
456V.
b. To maintain better performance, please operate the unit under the following outdoor temperature:
ECH030N
ECH060N
ECH030N
ECH060N
Ambient
temperature
25 30 40 45 50 52 55
-15
-10
-7
-4
0
30
ECH090N
ECH090N
（Unit:℃）
Outlet water
temperature
Cooling operating range
5 10 20150
-10
-5
5
15
25
35
43
（Unit:℃）
Outlet water
temperature
Heating operating range
Ambient
temperature
25 40 45 48 50
-15
-18
-20
-10
-7
-4
0
30
42 55
1.1 Main characteristics
Air-cooled heat pump unit consists of one or more modules. Each module has an independent electronic control unit. In addition,
there is also a network in the unit enabling communications among modules. Compact and easy to transport and install, the
air-cooled heat pump unit requires less auxiliary facilities, such as cooling tower and cooling pump, and therefore costs less for
consumers. The unit is provided together with central air conditioning equipment or cold, hot water terminal equipment. As a
completely independent model, the unit is able to be installed outdoors, such as on the ground and on the roof. The unit’s each
module features efficient, low-noise and modular compressor, air-cooled condenser, plate evaporator and microcomputer control
centre and so on, all of which are installed on a steel structure reliably. The unit’s microcomputer control system is able to adjust
energy input according to the load, to most closely match the conditions and reduce energy losses. 16 Modular units can be
combined in parallel at most, with the number of units at the discretion of the user depending on the actual situation. The product can
be widely applied to air conditioning schemes in new and reconstructed buildings for industrial and civil use, for example,
restaurants, hotels, apartments, office buildings, hospitals, and industrial parks. For scenarios requiring silence and with higher
requirements for the surroundings and water supply, the air-cooled heat pump modular unit is definitely the best choice.
1
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