GP Hanging Air Heater is designed for a wide range of indoor environments, including poultry houses, greenhouses, commercial and industrial premises where the ground surface is scarce. Four hooks (two on each side) make it easy to hang the heater close to the area where heating is required.The heater works on the principle of indirect combustion, which ensures clean operation and prevents any emission of exhaust gas into the heated environment. The GP heater can burn wide range of fuels such as diesel, natural gas, LPG or propane (paraffin upon request). It is supplied fully assembled and ready for installation. The standard product line encompasses a range of small sizes with nominal heating efficiencies around 90%.

Technology basisThe GP Air Heater works on a principle of indirect combustion. A heat exchanger is used to separate the combustion process from the heated air stream, which allows for combustion gases to exit the building through a chimney. A powerful fan forces room air at high pressure over the heat exchanger where the air absorbs heat from the combustion process. The warm and dry air is then supplied into the room through the air outlet. The standard type of air outlet has an elliptical design suitable for installation of a plastic duct for an optimal distribution of the warm air throughout the desired indoor area.

P R O D U C T I N F O R M AT I O N

GP ● High efficiency

● Corrosion resistant (housing is made from pre-coated galvanized steel, combustion chamber and heat exchanger are made from stainless steel)

● Ready to install

● Prevention of faulty operation (dual switching safety thermostat controls the fan motor and the burner)

● Easy to observe the burning process through small inspection window

● Easy to operate

● Variety of air diffusers are available upon request

● Burners available for a variety of fuels: diesel, LPG or propane

GP Air Heater

Photo shows fully equipped MFS fan.

Heater size

Diesel Diesel Gas Gas Total thermal power[kW]Finterm Burner

[kW]*Riello Burner

[kW]*Finterm Burner

[kW]Riello Burner

[kW]

GP30AZ4

[37]

RG01 Gulliver

[37]

JM6gas

[37]

40 FS5R MB 03/1

[37]34

GP50AZ8

[67]

RG2 Gulliver

[67]

JM9gas

[66]

40 FS8R MB 05/1

[58]60

*Maximum power with the installed nozzle.

DesignCombustion chamber and heat exchanger: the combustion chamber is made from stainless steel. It has a special cylindrical shape allowing good flame reversal in order to reach high combustion temperatures and very efficient heat exchange. Both the combustion chamber and the heat exchanger have been designed to reach high thermal efficiency and extended service life of the heater.Axial fan: the direct driven axial fan is equipped with round safety mesh.Radial fan: radial fan is belt driven and equipped with protection mesh. It ensures high pressure output and low noise levels.Housing: housing is made of pre-coated galvanized steel in order to prevent corrosion and enable easy cleaning.Burner: high efficiency has been the main priority in the design of the heater. Each heater is equipped with a stand-alone, high quality burner, which assures an excellent combustion, stable performance and extremely safe operating conditions (See the table beside).

Operation and regulationThe GP heater is also equipped with programmable digital room thermostat and remote temperature sensor for stand alone use. This allows the user to measure the temperature in the most critical points and to operate the heater accordingly. In case of climate controlled indoor environment, the GP heater must be driven by the output relay from the climate controller. In order to increase the safety and to avoid instable operation, there is a dual switching mechanical thermostat mounted on the heater. The thermostat activates the fan motor based on the temperature measured on the combustion chamber and on the heat exchanger. In case of fan malfunction it stops the burner and the fuel flow immediately. A pyroglass eye installed on the heater’s housing makes it easy to inspect the flame inside the combustion chamber. For operations in the dusty environments it is recommended to use a supplementary flexible pipe to supply fresh and clean air from outside into the burner.

Installation and maintenanceGP is equipped with four hooks (two on each side). Thus it can be easily hung over the area that requires heating. The standard supply contains 2 stainless steel exhaust pipes (each 1 meter long); stainless steel chimney; a big size stainless steel roof pass plate for easy installation in structures made from plastic film and a digital room thermostat. The combustion chamber can be easily cleaned with pressurised water (with or without detergents) through a built-in service port. Chains and wires for hanging the heater are not included in the supply. It is generally recommended that a jet-fan is installed in conjunction with each heater outlet.

Principle illustration:A: Cool ambient airB: Combustion chamberC: Hot exhaust gasD: Heat exchangerE: Exhaust gasF: Warm and dry air entering the greenhouseG: Burner

A

B

C

D

E

F

G

Dimensions

Type GP C/D

A B C D G H I

GP30 C/D 1,590 745 780 150 120 108.5 M8

GP50 C/D 1,790 745 780 150 120 108.5 M8

Type GP E/D

A B C D G H I

GP30 E/D 1,340 745 780 150 120 108.5 M8

GP50 E/D 1,540 745 780 150 120 108.5 M8

Type GP C/T

A B C D E F G H I

GP30 C/T 1,290 840 900 150 760 400* 120 108.5 M8

GP50 C/T 1,490 840 900 150 760 400* 120 108.5 M8

GP air heater is developed and produced by Munters Italy S.p.A., Italy

Australia Munters Pty Limited, Phone +61 2 6025 6422, Brazil Munters Brasil Industria e Comercio Ltda, Phone +55 41 3317 5050,

Canada Munters Corporation Mason, Phone +1 517 676 7070, China Munters Air Treatment Equipment (Beijing) Co. Ltd,

Phone +86 10 80 481 121, Denmark Munters A/S, Phone +45 9862 3311, India Munters India, Phone +91 20 3052 2520,

Indonesia Munters, Phone +62 818 739 235, Italy Munters Italy S.p.A., Chiusavecchia, Phone +39 0183 52 11, Japan

Munters K.K., Phone +81 3 5970 0021, Korea Munters Korea Co. Ltd., Phone +82 2 761 8701, Mexico Munters Mexico, Phone

+52 818 262 54 00, Russia Munters AB, Phone +7 812 448 5740, Singapore Munters Pte Ltd., Phone +65 744 6828, South Africa and Sub-Sahara Countries Munters (Pty) Ltd., Phone +27 11 997 2000, Spain Munters Spain S.A., Phone +34 91 640 09 02,

Sweden Munters AB, Phone +46 8 626 63 00, Thailand Munters Co. Ltd., Phone +66 2 642 2670, Turkey Munters Form

Endüstri Sistemleri A.Ş, Phone +90 322 231 1338, USA Munters Corporation Mason, Phone +1 517 676 7070, Vietnam Munters

Vietnam, Phone +84 8 3825 6838, Export & Other countries Munters Italy S.p.A., Chiusavecchia Phone +39 0183 52 11

Munters reserves the right to make alterations to specifications, quantities, etc., for production or other reasons, subsequent to publication.© Munters AB, 2012

Your closest distributor

Munters Europe AB, Isafjordsgatan 1, P.O. Box 1150, SE-164 26 Kista, Sweden. Phone +46 08 626 63 00, Fax +46 8 754 56 66.Munters Italy S.p.A., Strada Piani 2, IT-18027 Chiusavecchia, Italy. Phone +39 0183 52 11, Fax +39 0183 521 333.

www.munters.com

Type GP E/T

A B C D E F G H I

GP30 E/T 1,040 840 900 150 760 400* 120 108.5 M8

GP50 E/T 1,240 840 900 150 760 400* 120 108.5 M8

*GP30 C/T and E/T and GP50 C/T and E/T are only supplied with elliptic diffuser outlet.

Technical information

GP30 GP50

Weight1 [kg] 80 90

Maximum power2 [kW] [Kcal/h] 37 [31,950] 67 [57,550]

Working power2 [kW] [Kcal/h] 34 [29,150] 60 [51,200]

Maximum diesel consumption2 [Kg/h] 3.1 5.6

Maximum natural gas consumption3 [m3/h] 4.6 6.6

Efficiency (diesel oil) % 91.2 89

Nominal electric power2,4 [W] 450 800

3 phases voltage available [V] 230/400 230/400

Single phase voltage available [V] 230 230

Airflow5 [m3/h] [cfm] 3,300 [1,950] 4,700 [2,770]

IEC protective class for electric motor IP55 IP55

Electric motor winding insulation class F F

Diameter for outlet [mm] 400 4001Weight referred to GP without burner and accessories; 2Value referred to GP with Finterm diesel burner; 3Value referred to GP with Finterm burner; 4Value referred to 3 phases electric motor; 5Value referred to standard conditions (20°C, 1,013 hPa).

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