VMNL series low ambient temperature air sourced water chiller & heat pump is a newly developed product to solve heating in low ambient temperature condition, such as northern part of China and other territories in the world.

This unit is designed and produced, as per the high standard of chiller industry, international famous compressor, blow out gas to increase enthalpy type, with high efficient heat exchanger and precise control. This series product has the same advantages of other air cooled water chiller and pump, impact size, reasonable layout, convenient for maintenance.

Low ambient modular units use air as the cooling/heating source, it does not need cooling water system that required for water cooled unit, neither the complicated buried piping system for the ground source unit. It’s the most economic and simplest system for maintenance in today’s chiller & heat pump unit.  

Features

1. Green

Blow out gas to increase enthalpy, this technology changes the traditional heating method of boiler and electric heater, no requirement of fuel, gas, coal or LPG; No harmful gas emission, no potential accident of fire or explosion caused by boiler.  

2. Modular, impact and flexible

Up to 16 units can be linked together, cooling capacity range can be extended to 1088kW from 68kW for flexible selection. The structure is impact, less land coverage, easy for transportation and handling. There are two cooling/heating circuits in one module.

3. Energy Saving

It will start/stop automatically according to operation condition, heating capacity will be improved by 15% compared with standard air source heat pump, COP will be improved by 20%.

4. Operation in low ambient temperature

Our VMNL series unit can be operated in heating in ambient temperature down to -20℃. The heating capacity reduction will be 15% less comparing the normal air sourced heat pump in the same condition.

5. Advanced Liquid Injection Valve

Danfoss PSH scroll compressor is optimized for heat pump applications. Scroll elements pressure ratio optimization and liquid injection management is developed for extreme conditions runing, is also equipped with several pre-wired devices that enhance compressor reliability. Liquid injection is controlled by discharge gas temperature sensor plugged to the control board placed in the terminal box.

6. Scientific defrost

Adopts VICOT unique microcomputer fuzzy defrost technology, many type of territories parameter design, it will automatically compare the defrost capacity reduction and defrost consumption, regulate defrost interval period and defrost time according to different temperature and humidity, to minimize the defrost time and consumption.

7. Cloud service

In travelling? Timing switch on/off the unit? Daily maintenance? The user can access to control the unit via main network data center, the service center technician will set the machine to run in best condition as per climate change, and check the operation record. Unit management access trouble is solved.

 8. Intelligent Protection

a. Earthing protection
b. Over voltage protection
c. Creepage protection
d. Temperature difference too big protection
e. High temperature protection
f. Anti freezing protection
g. Low voltage protection
h. Phase missing protection
i. No water protection
j. Over amperage protection
k. Water flow protection
l. High/low pressure protection
m. Temperature sensor failure protection
n. Auto monitor
o. Communication error