Model NOZ
20Pages

Multi directional heating

Air heaters The ideal heat source for large buildings Air heaters are used for the heating and ventilation of large industrial buildings. New industrial buildings are built to higher standards with better insulation, reducing the need for heat. Yet, sufficient distribution of any heated air remains necessary to “serve” large spaces properly. Furthermore industrial buildings have increasingly high demands for comfort throughout, while the desired flexibility in building layout asks for equally flexible installations. Projects must be carried out ever faster, making ease of selection and...

Fewer units because of induction The air heater has individually adjustable nozzles, thus providing a better distribution of the air. Warm air is discharged downward through the nozzles in adjustable directions. The high velocity discharges induces movement of the surrounding air, resulting in good mixing and the warm air spreading quickly and evenly across a large area. As the “area of influence” of this air heater is relatively large, fewer units will be needed to heat a large space and savings can be realized on the reduced number of units and on installation costs. The high velocity...

Various options Type code NOZ 25-W2-D NOZ = air heater with nozzles Capacity 25 / 50 = nominal heating capacity kW Battery type W2 = heating, 2 row (water range 90/70 °C) W3 = heating, 3 row (water range 60/40 °C) W6 = heating, 6 row (water range 50/30 °C) A = without heating (ambient) Supply voltage E = 230 Volt; 1 Ph; 50 Hz D = 400 Volt; 3 Ph; 50 Hz The air heater is suitable for recirculation and/or ventilation and is deliverable in two capacities: the NOZ 25 and the NOZ 50. The unit comes, as a standard, with a 2-row heating battery that is suitable for water temperatures of 90/70 °C....

Standard delivery Air heater NOZ comes with an isolation switch (6-pole) with external thermo contacts built in as standard. Accessories The following additional accessories can be supplied: • Control switch: 5 speeds (see page 8) • Water temperature control to regulate the discharge air temperature • Room thermostat • Suspension frame for fast and easy mounting • Plastic covers to cover up max. 2 nozzles Accessories for ventilation Speed controller with pilot light and connections for room thermostat and thermal contacts. The air heater may also be used for ventilation purposes when fresh...

Air heater selection The air heater range comprises of 2 types which makes selection very easy and it is possible to deliver from stock. Both models are suitable for different mounting heights. The comfort requirements determine which model is applied. Type Heating capacity Mounting Influence height area 2.8 m - 100 m2 - 8.5 m 3.5 m - 14 m Application smaller rooms higher comfort demands larger rooms lower comfort demands Influence area and downward penetration To optimise the distribution of the discharged air, the nozzles can be adjusted. The correct air flow direction is dependent on the...

Influence area and downward penetration Diagram 2: air heater type [m3/h] Diagram 3: downward penetration Diagram 4: influence area 53 The figures below the diagrams 2, 3 and 4 are auxiliary figures, which have no specific meaning.

Electric connection The feeder cable may be connected to the isolation switch (of protection class IP 21), which is built in as a standard. Provisions for connecting isolation switch Speed controller (for 1 or more units) The speed controller is connected to the unit with a 230/400 V cable (depending on the type of unit). This is also the power cable for the unit. If multiple units are connected to a single speed controller, the thermal contacts must be switched in series. There are two speed controllers. N|SL| |FS|FS| |qferj )ix[n<| \jjfj\\ |LI|N|N|

Technical data air inlet temperature heating capacity air outlet temperature water flow rate water pressure loss air inlet temperature heating capacity air outlet temperature water flow rate water pressure loss air inlet temperature heating capacity air outlet temperature water flow rate water pressure loss air inlet temperature heating capacity air outlet temperature water flow rate water pressure loss air inlet temperature heating capacity air outlet temperature water flow rate water pressure loss Air volume is less with ventilation models - if 1 module is used, by 15% and if more than 1...

Technical data Basic data voltage supply max. input current max. input power water range weight tapping voltage, fan air inlet temperature heating capacity air outlet temperature water flow rate water pressure loss air inlet temperature heating capacity air outlet temperature water flow rate water pressure loss air inlet temperature heating capacity air outlet temperature water flow rate water pressure loss air inlet temperature heating capacity air outlet temperature water flow rate water pressure loss air inlet temperature heating capacity air outlet temperature water flow rate water...

Technical data Basic data voltage supply max. input current max. input power water range weight tapping voltage, fan air inlet temperature heating capacity air outlet temperature water flow rate water pressure loss air inlet temperature heating capacity air outlet temperature water flow rate water pressure loss air inlet temperature heating capacity air outlet temperature water flow rate water pressure loss air inlet temperature heating capacity air outlet temperature water flow rate water pressure loss air inlet temperature heating capacity air outlet temperature water flow rate water...

Technical data Basic data voltage supply max. input current max. input power water range weight tapping voltage, fan air inlet temperature heating capacity air outlet temperature water flow rate water pressure loss air inlet temperature heating capacity air outlet temperature water flow rate water pressure loss air inlet temperature heating capacity air outlet temperature water flow rate water pressure loss air inlet temperature heating capacity air outlet temperature water flow rate water pressure loss air inlet temperature heating capacity air outlet temperature water flow rate water...