Related Manuals for Carrier 42GM
Summary of Contents for Carrier 42GM
- Page 1 42GM Individual Air Treatment Module for Variable-Flow Systems Installation, operation and maintenance instructions...
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Page 2: Table Of Contents
1. - Air flow/available static pressure data .......................... 13 - CONTROLLER ..................................23 13.1 - Carrier numeric controller ..............................3 13. - Carrier room thermostats ..............................3 The illustrations shown in this document are solely for information, and not contractually binding. The manufacturer... -
Page 3: Introduction
It is a total, integrated comfort system in the building. The Carrier 4GM is a compact central station air handler to supply conditioned air at a rate of 15 l/s to rooms with floor areas of approximately 5 m . - Page 4 42GM - Four main components Front fastening support Rear suspension rail 42GM Individual Air Treatment Module Duct outlets (connecting pieces)
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Page 5: Features
Water connections 42GM modules are designed and tested for 16 bar operating pressure. The total operating circuit of the 42GM is guaranteed for an operating pressure of 10 bar. Contact your local Carrier representative for advice when an application calls for an operating pressure of 10 bar. -
Page 6: Operating Limits
2.2 - operating limits • Cooling mode Supply air temperature 1°C when the unit is installed where the ambient temperature is 7°C dry bulb with 65% relative humidity. • Heating mode Max. supply air temperature = 60°C. If an electric heater is used, the minimum unit operating flow rate is 16.6 l/s (60 m /h). -
Page 7: Dimensional Drawings - 4Gm On Front And Rear Supports
2.3 - dimensional drawings - 42GM on front and rear supports 2.3.1 - 42GM with front fastening support with constant fresh air volume, mm Supply Return Fresh air ø 124 ÿ124 Oblong 13 x 20 oblong 13x20 1081 2.3.2 - 42GM with front fastening support with variable fresh air volume, mm... -
Page 8: Packaging
2.4 - Packaging WARNING: When moving the 42GM units do not use water pipes, condensate drain pipes, flexible pipes, fresh The 4GM units, the front fastening supports and the duct air connections to lift them, nor the supply or return air... -
Page 9: Safety Considerations
Use the screened cable type recommended by IMPORTANT: The components, which make up the Carrier and make sure all cables are connected to different control loops described in this manual include the controllers and power modules. -
Page 10: Installation
The pressure drops through the ducts must be compatible with the performance of the 4GM. The internal duct sur- VERY IMPORTANT: For correct operation of the 42GM faces must be as smooth as possible. Avoid sharp bends. unit the front fastening supports and the rear suspension Check that there are no leaks and that they have not become rail must be level. -
Page 11: 4Gm Installation
4.2 - 42GM installation 4.1.3 - Installation of the rectangular duct outlets Supply and return duct outlets (connecting pieces) must be attached to each front fastening support of the 4GM units. 4.2.1 - General These are separate, and complete leak-tightness between... - Page 12 4GM unit. Tighten the unit well (movement 4, see fastening support, designed to engage with the hooks. Fig. 3). Fig. 2 Concrete slab Front fastening support Rear suspension rail 2 hooks on the 42GM Support block Clamping nut Fig. 3...
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Page 13: Removing A 4Gm Unit
4.3 - removing a 42GM unit NOTE: Once the 42GM unit has been installed, ensure that it is level or slightly sloped towards the rear of the unit (to ensure that the condensate is drained correctly). Disconnect the power supply before carrying out any work on a 4GM unit by switching off the power supply at the •... -
Page 14: Fresh Air
The fresh air rate can be set at the Carrier controller. the range 50 Pa to 200 Pa. The 16.6 l/s or 60 m... -
Page 15: Fan Motor Assembly
6 - Fan Motor asseMbLy Removal procedure: • Remove the 4GM unit as described in the chapter 6.1 - description ‘Removing a 4GM unit’. • Lay the module on its non-removable side (fixed by The 4GM has a double inlet fan to give very high available rivets). -
Page 16: Water Coil
Re-installation procedure: • Follow the instructions above in reverse order, and NOTE: Each 42GM has a label showing the position of refer to the unit ‘installation’ procedure. the water inlets and outlets on the coil. Ensure that the water system is constantly under controlled pressure to NOTE: When connecting the new coil to the flexible pipes: ensure the correct charging of the coil pipes. -
Page 17: Water Inlet/Outlet Connections
7.3 - Water inlet/outlet connections 2-pipe version 38 mm Flexible pipes, 400 mm Threaded nuts G1/2” Condensate drain Ø 12 4-pipe version 8 - FLexIbLe Water PIPes Description Flexible pipes are used to make the water connections. Every branch of the system must therefore have an isolating valve. -
Page 18: Valve Motor And 2-Way Valve Body
NOTE: When connecting the new valve to the flexible pipes and coil: • be careful not to damage the coil manifolds by tightening them too much. Carrier recommends the use of a dynamometric key, set to 15 N·m; • install new leak-tight joints between coil, valves and flexible pipes. -
Page 19: Filter
10 - FILter The 4GM has, as standard, a high-efficiency F6 filter in accordance with standard EN 779 or EU 6 in accordance with Eurovent 4/5. Fire rating medium M1. The filter can be removed through a door in the underside of the unit. -
Page 20: Electric Heater
11 - eLectrIc Heater The assembly is installed on an access plate that can be removed through the filter door (under the unit) - see 11.1 - General diagram. The 4GM can be equipped with an electric heater to pro- The electric heater and the thermo-electric actuator can be vide heating. -
Page 21: Performances
Legend: : Fan motor power supply : Current draw : Power input to the fan motor, Carrier controller or speed controller Fan speed : Fan motor rotation speed in revolutions/second (revolutions/minute) : Air flow Pressure P1 : Available static pressure (without air purifier) -
Page 22: Air Flow/Available Static Pressure Data
12.2 - air flow/available static pressure data Available static pressure curve (Pa) as a function of air flow (m /h or l/s) Available pressure, Pa U = 230 V U = 200 V U = 140 V U = 170 V U = 110 V U = 80 V m3/h... -
Page 23: Controller
13 - controLLer 13.2 - carrier room thermostats 13.1 - carrier numeric controller Room thermostats are elegantly designed to be fully com- patible with any style of interior decor. Each 4GM is fitted with a configurable and communicating numeric controller. The controller is directly fitted to each module. - Page 24 Whether you live in the tropics or in Greenland Whether you suffer from the heat, from the cold or from lack of air CARRIER has the solution and can show it to you in the demonstration suite The programmes available ✔...