NH3 FLOOR STANDING UNIT COOLERS
Applications and models
Wall evaporators for tunnels for placement in conservation and refrigeration chambers of all types of genres. The range of Intersam ammonia wall evaporators is composed of 4 main series for high INHA, medium INHM, low INHB and very low INHT temperature.
Its high performance evaporator coils are built in AISI-316 stainless steel tube with TIG ORBITAL welding and corrugated aluminum fin with spacings of 4.2; 6; 8 and 10mm. The aluminum sheet frame is provided with protection collars and has a Venturi type production system for the application of thermostatic expansion valves. Manifold and connection sleeve in stainless steel ..
Regarding its exterior structure, the manufacture is made of aluminum painted in high resistance RAL-9018 polyester color. The entire structure is compact and highly rigid, thus avoiding vibrations. The pieces are all easily removable for maintenance.
The units are fitted with high-performance helical fans with protective grids as standard and are fitted with 400 diameter motors, 540, 630 and 800mm., Three-phase 400V / 50Hz, with degree of protection IP-54, with external rotor and low consumption. The bearings are provided with special grease for low temperatures, down to -50ºC. All motors can be connected to a general watertight box, according to IP-55 regulations.
Finally, defrosting is carried out with 230V electric heaters built in armored stainless steel tube. Its vulcanized ends avoid derivations and are inserted inside the battery and the tray. They are connected to a watertight junction box.
Models in this range can be supplied with defrost heaters.
In order to configure the equipment to obtain its maximum performance, there are different options to take into account when making the request. These options allow, for example, to modify the fins, change the type of coolant, incorporate heat batteries, etc.
Regarding defrosting, you can choose to reverse cycle or defrost by hot gas, or by water , etc.
These and other possible modifications to the fans can be consulted in more detail in the downloadable brochure on this page. span >
In the case of wanting to include one or more options to the equipment, these must be made upon request and under the prior study of the Intersam. technical department
The powers of the forced draft evaporators are tested in a dry atmosphere according to the ENV-328 standard. The nominal powers indicated in this catalog correspond to the test powers (SC2) multiplied by a coefficient (latent heat factor), in order to include the increase in capacity caused by the condensation of water vapor on the surface of the evaporator. This factor varies with chamber conditions: it increases for high interior temperatures and decreases for low interior temperatures.