• HVAC

    We designed our Heating Ventilation and Air Conditioning (HVAC) systems in order to provide safe and optimal conditions for the driller’s cabins and local equipment rooms.
    Description

    Each HVAC system delivers a clean, safe and temperate working environment for your personnel and equipment. Our HVAC systems meet industry guidelines allowing installation and operation in extreme environmental conditions, including hazardous areas. We can provide energy saving solutions. Known for their reliability, our HVAC systems are highly distinguished for their extended lifetime thanks to the automatic changeover of redundant units. We focus on uptime and ensure your team’s comfort in the most demanding circumstances in the driller’s cabin.

    Features/Benefits

    Option

    Features

    HVAC-800 EX

    • Used for rooms rated Zone 2
    • 440-480VAC standard
    • Redundant fan skid, EX approved. With or without air recirculation
    • Duct mounted heater, EX approved
    • Cooling skid, EX-approved (Refrigerant R134a standard )
    • Condenser  options:
      • Air cooled (EX approved)
      • Fresh water cooled  
      • Salt water cooled
    • Sensor package
    • Required dampeners
    • Internal ducting, plenum chambers and diffusers
    • Control cabinet with software
    • HVAC blackstart panel
    • Interface to driller’s workstation for control / monitoring
    • VFD driven motors
    • Automatic fan alternation
    • Automatic compressor alternation
    • Dehumidification control
    • Pressure and temperature control

    HVAC-800 SA

    • Requires room to be located in safe area or contain Ex equipment Fresh air fan (1x100%)
    • Lower cost
    • No gas dampers
    • No VFD driven fans

    Cooling Redundancy

    • Extra cooling unit mounted in series with the other cooling unit
    • Function for automatic alternation

    Heating Redundancy

    • Extra heating unit mounted in series with the other heating unit
    • Function for automatic alternation

    Controls Redundancy

    • Redundant controls that will automatically switch to other controller in case of failure with no information lost

    690VAC Supply voltage

    • Use of transformer(s) or,
    • Use of motors and VFDs rated 690VAC

    R407c Refrigerant

    • Standard refrigerant for EX cooling unit is R134a and nonEX AC unit R410c

    Compliance

    • ISDS / ISQM
    • Norsok
    • NR13
      

    Option

    Features

    HVAC-400 EX

    • Used for rooms rated Class 1, Div 2, or Zone 2
    • 440-480VAC standard
    • Pressure and temperature control
    • -20°C to 45°C outside air temperature (standard)
    • Designed to maintain 22°C (+/- 2°C) inside temperature

     

    Main Components:

    • AC unit(s)
    • Pressurizer(s)
    • Heater(s)
    • Control Panel

    HVAC-400 SA

    • Used for rooms rated safe area
    • 440-480VAC standard
    • Temperature control
    • -20°C to 45°C outside air temperature (standard)
    • Designed to maintain 22°C (+/- 2°C) inside temperature

     

    Main Components:

    • AC unit(s)
    • Heater(s)
    • Control Panel

    AC Redundancy

    • Provides redundant climate control
    • Automatic change-over
    • Single package or dual package

    Pressurizer Redundancy

    • Provides redundant pressurization
    • Automatic change-over

    Remote Mount

    • HVAC mounted in remote location
    • Allows hazardous rating to be reduced

    Low Ambient Temperature

    • Design for -20°C to 40°C outside air temperature

    High Ambient Temperature

    • Design for 0°C to 55°C outside air temperature

    690VAC Supply voltage

    • Use of transformer(s) or,
    • Use of motors and VFDs rated 690VAC

    Compliance

    • NEC / IEC
    • ABS MODU
    • ABS CDS