Review of Stulz precision air conditioners: error codes, model comparison

The company specializes in the manufacture of specific climatic equipment - chillers of various designs, Stulz precision air conditioners. The latter are designed for precise control of temperature and humidity conditions in rooms. Scope: server rooms, rooms with telecommunication equipment. Stulz is a responsible manufacturer with innovative technologies. Separately, it should be noted the quality of the products.

Main lines of air conditioners and products

Climatic installations of this type are designed for year-round maintenance of premises. Specificity - low error rate, not exceeding 1 ° С from the set temperature. To optimize the work, there is a winter mode - intake and further preparation of cold air from the street. Stools models differ in technical parameters, design and service rules.

The company has not yet developed a full-fledged Russian-language website; information about its products is partially posted by a few representatives. There you can get acquainted with the basic prices, photos of models, get minimal information about the specifics of the work. Consider the main lines that the manufacturer currently offers.

Mini Space EC

The air conditioner of this series is intended for installation in small and medium premises. Available cooling options: air, water-glycol or water. The choice of the direction of air flows - descending or ascending. Each precision air conditioner is equipped with a state-of-the-art EU 4 filtration system.

Basic technical parameters:

• cooling capacity varies from 12.1 to 31.7 kW;
• a heated humidifier is installed;
• high-temperature refrigerant R134A is used;
• fans with DC motors are installed.

The use of EC technology has a positive effect on economical energy consumption. The efficiency of the equipment will increase - up to 92%.

The system reacts to changes in the thermal conductivity of the air in the room. Based on the information from the sensors, the temperature and humidity are regulated.

CyberRow

The peculiarity of the equipment of this series is in-line air conditioning. The device takes heated air from the working passage in the room, processes it and directs the flow further. The functional purpose of the system is filtration and cooling. It is possible to order the installation of an additional module for dehumidification.

It is important to know the features of the work that Stulz precision air conditioners have, the manual describes in detail the following points:

• cooling capacity - from 24 to 56 kW;
• installation between equipment cabinets is recommended;
• you can close one of the air outlet holes to concentrate the flow in a certain area;
• in-line connection, duplication of the work of blocks.

The high-precision module is designed to regulate the temperature regime in a certain area. Additionally, the layout of the serviced equipment is taken into account.

It is important - the manufacturer gives restrictions on the microclimatic parameters of the serviced premises. The set of equipment is not installed in rooms with an aggressive environment, strong magnetic or thermal radiation.

Split systems Split-Air

This split system of the company differs from standard counterparts.It is designed for zonal air cooling in working rooms, where installation of floor units is impossible or difficult. Advantages - optimization of work due to the intake of cold air from the street, small size of the indoor unit.

Main characteristics:

• cooling capacity - from 3.8 to 11.1 kW;
• two zones of air flow distribution - horizontal and vertical;
• efficient air purification system;
• ceiling installation of the air conditioner possible.

The advantage is integration with the manufacturer's floor-standing models. This will optimize the operation of the entire complex, concentrate the direction of the flow in a specific volume of the room.

Features of Stulz products - service of air conditioners can be carried out by local personnel after training. Installation and repair work must be entrusted to the representatives of the company.

Comparison of characteristics of popular models

Before purchasing this climatic equipment, you need to make calculations of all parameters: the required temperature regime, humidity indicators, the distribution of air flows throughout the room. Based on this, the optimal complex for servicing server rooms or rooms similar in purpose is selected.

You also need to take into account the basic characteristics of the equipment, which are contained in the instructions:

• installation type - floor, wall or ceiling;
• rated power;
• cooling method - water, air or water-glycol;
• the degree of air purification.

Comparative characteristics of the three popular models are shown in the table.

The price is formed on an individual basis, depending on the configuration of the system. Additionally, maintenance costs, energy costs and coolant costs must be considered.

Instructions for the control panel and air conditioners Stulz

The instruction for air conditioners was developed for each type of climatic equipment. It describes the features of the maintenance and repair of the complexes. The manufacturer recommends that personnel undergo training to master the basic skills of working with the technique. This is due to the individuality of the work of each model.

The classic air conditioner remote has been replaced with the C-7000 adaptive user interface. Its features:

• informative LCD screen;
• the ability to connect to well-known service systems;
• communication systems support SNMP / HTTP IP protocols;
• the ability to customize individual parameters.

The advantage of this control system is the connection of several air conditioning units to organize joint work. For the full functioning of a large complex, it is necessary to install temperature and humidity sensors in various parts of the room.

Stulz air conditioner error codes

Comprehensive monitoring of the cooling system is carried out automatically. The equipment is designed for continuous operation, many blocks are duplicated. But this does not exclude the occurrence of malfunctions or breakdowns. If they occur, the system issues error codes. Their list and classification are individual for each model and depend on the configuration.

To minimize the occurrence of problems, the manufacturer recommends adhering to the following rules:

• timely service climatic equipment;
• follow the operating rules;
• continuous operation at maximum cooling mode can lead to rapid wear;
• control of the coolant level, the degree of contamination of the air filters.

Important - self-repair without prior consultation with company representatives can lead to a deterioration in the condition of the equipment.

User reviews

Equipment of this class does not belong to general purpose systems. Therefore, reviews about the work of models are rare, mainly the specifics of the work are discussed on specialized forums. Based on the analysis of this information, conclusions can be drawn about the quality of the models' functioning.

Benefits:

• maximum autonomy of work;
• wide possibilities of interface customization;
• combining several models into a common cooling system.

The only drawback is the high cost. But considering the purpose and specifics of the work, the price is reasonable. It is important to choose the right equipment, which requires professional engineering calculations.