HVAC SYSTEMS
description
& FEATURES
The HVAC (Heating Ventilation & Air Conditioning) Systems series MHAC(V) are designed and manufactured, in explosion-protected execution, with an Ex type of protection specifically suitable to the “area classification”, declared by the ‘User
The series is ATEX – IECEx – and EACEx certified and is suitable to Air Conditioning, Pressurizing and Ventilating, of Cabins/Shelters, intended for “onshore/offshore” installation, in Hazardous Area classified as Zone 1 and/or Zone 2 and/or Zone 21 and/or Zone 22
Each MHVAC System is composed of an Air Conditioner our series MAP + a “Ventilation Unit” + a “Control Logic Unit”
The System is completed by a Kit of Accessories for Ventilation/Pressurization Air discharge and Air intake control, including:
- n° 2 door position switches
- n° 2 gravity balancing Dampers for air discharge (Fireproof when required by the project) fitted with rainproof mechanical protection, proximity switch and anti-insect net”
Smoke and gas Detectors that can be quoted on request
In the presence of extremely low ambient temperatures, the HVAC can be equipped with a renewal air Pre-heating module
A Cabin, equipped with the System described above, may contain “ordinary” electrical equipment (not Ex) but it is still necessary for the End User to submit the entire assembly to certification for the conditions of use, foreseen of the project
emb is able to supply a series of Transportable Ventilated Cabins, MTVR3 series ATEX certified for Group II, Category 3G, “Ex v3 ia” type of protection
models
& EXAMPLES OF APPLICATION
The model of a MHAC(V) System is defined by a basic code, composed as follow:
M: Manufacturer’s Code [EMB]
HAC: Heating and Air Conditioning
(V)-: Ventilation Unit
CW: Cooler Wall mounting
CR: Cooler Wall mounting
X: Ex Air Conditioner
. . . : Cooling Capacity in W, expressed by a 3-digits number consisting of the 2 first digits of the power value and of a third digit indicating the quantity of following “noughts” that complete the value itself.
The indicated below models, where the second digit is 1, belong to HVAC obtained from second generation air conditioners
For the complete definition of the model, it is necessary to integrate the basic code, with further acronyms, relating to the power supply voltage, the refrigerant gas type, as well as to any optional, accessories and/or special versions
The acronyms can be deduced from the respective brochures
The MHAC(V) series includes the following types of HVAC Systems
basis codes related to 4 HVACs obtained from MAC-CWX712, MAC-CWX912, MAC-CRX712 and MAC-CRX912 Air Conditioners
MHAC(V)-CWX712 e MHAC(V)-CWX912: Wall mounting execution
nominal cooling capacity: 7000 or 9000 W
Heating Capacity, in the heat pump version: 2600÷6000 W
Single or Redundant Air Conditioning Unit
Single or Redundant (external) Ventilation Unit
Non-ductable Ventilation Air
MHAC(V)-CRX712 and MHAC(V)-CRX912: same as MHAC(V)-CWX,
but Roof mounting execution, with ductable Ventilation Air
The Ventilation Unit is coupled directly to the Air Conditioner
The Logic Control Unit is foreseen for separate assembly
Basis codes related to the following range of HVAC obtained from the Air Conditioners series MAC-CWX602 ÷ MAC-CWX104 e MAC-CRX602 ÷ MAC-CRX104
Monobloc configuration with a single structure equipped with:
Air Conditioner, Fans, Electric heaters and Logic Control Unit
A structure is also foreseen to house 2 redundant HVAC systems but, in this case, the redundancy management will be carried out by means of an additional Logic Control Unit mounted separately.
MHAC(V)-CWX602 ÷ MHAC(V)-CWX104:
Wall mounting execution (with anti-vibration bellows interposed) and floor support
nominal cooling capacity: 6.000÷100.000 W
Heating Capacity, with Electric Heaters: 2÷40 kW
Single or Redundant Air Conditioning Unit
Single or Redundant Ventilation Unit
Ductable Ventilation Air
MHAC(V)-CRX602 ÷ MHAC(V)-CRX104; same as MHAC(V)-CWX, but Roof mounting execution,
to the complete model code it is necessary to add the /Fc2 alphanumeric suffix, which expressly identifies this range of Air Conditioners
The following Application Examples show some of our most meaningful realizations of HVAC Systems series MHAC(V)