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Air Conditioning & Ventilation System

Air Conditioning System:

CRUISAIR Tempered Water System (chilled water) 12 ton (3xMTC48DC) 208 volt AC-230 volt AC 3-phase 50/60 Hz per PAE design

Modular Tempered Unit: FMTC3X4HDC Framed Chiller, 12 tons, 3-stage, 230 volt 50/60 Hz, 3-phase

Control Panel: MPEDR3UDC1 TWLC3-Unit Panel , 2 Pump Relays, 230 volt - 3 phase

Air Handlers 237Btu/hr total 208 volt AC 60 Hz - 3 phase:

Two (2) x ATB9C - Lower Mid Cabins and heads

One (1) x ATB6C - Lower Fwd. Cabin and head

Two (2) x ATB12C - Master Stateroom and head

Two (2) x ATB18C - Galley/Dining

Two (2) x ATB18C - Salon and day head

Two (2) x ATB12C - Wheel House

One (1) x ATB12C - Captains Cabin and Head

Two (2) x ATB12C- Sky Lounge

One (1) x ATB9C- Crew Cabin/Laundry area

One (1) x CBSBF24C - Engine room

Circ Pump: CPOD180B3X

Sea Water Pump: PS3000B3X

Room Controllers:

Eleven (11) x SMXHTG, SMX LCD Key Pad/Display, Grey

Eleven (11) x PLTX-HVSTAT, SMXII PWR LGC BX for TW/New HV Board

Five (5) x CXP30 Cable Interconnect 30' (9.4 m) SMXir

Six (6) x CXP10 Cable Interconnect 10' (3.5 m) SMXir

Eleven (11) x TSEP5 Cable Temp Sensing Element with RJ-11 5'-3" (1.6 m)


EXT240 Expansion Tank-TW-Bladder

BFC66 Balancing Flow Control

1060915 Automatic Vent

1070200 Backflow Preventer Valve

1070201 Pressure Regulator Valve

DSV2/240 Vent Dual Spiro 2" (5.08 cm) FPT/240Btu/hr Max

1010020 Strainer

Engine Room Ventilation System

Two (2) Intake Fans - Multifan model #4E50-240 volt 60 Hz 20" (50.8 cm) diameter rated at 4638 CFM @ 0.0" SP. Two (2) louvered vents on P&S side deck at fwd end of engine room with screened blower inlet. Each intake fan will pull through a Delta T moisture eliminator located at the deck side

Two (2) Exhaust Fans - Multifan model #4E50-240 volt 60 Hz 20" (50.8 cm) diameter rated at 4638 CFM @ 0.0" SP. Two (2) louvered vents on P&S side deck at fwd end of engine room with screened blower inlet

Fire/Smoke Dampers – Ruskin Low Leakage Control Damper, 18"x18" (45.7cm x 45.7cm) Stainless Steel Rear Flanged equipped with a side mounted Honeywell H-2024 (24 volt DC) Fast-Acting, Two Position Actuator. One (1) damper each installed on the engine room side of each blower for easy access. Each damper will be normally open and will close on SEAFIRE actuation. For boats equipped with main engine dry exhaust, one (1) damper each installed on the inside of each main engine exhaust stack louvered vent opening - damper size to be compatible with stack opening

Two (2) intake fans and two (2) exhaust fans have adjustable speed controls Grainger model #3C955 to adjust engine room air flow

Auto Blower Stop and Damper Closure on Engine Room SEAFIRE Actuation (See Fire Protection System)

Note: See Noise Control item F


One (1) Exhaust Blower - Multifan model #4E25-240 volt 60 Hz 10" (25.4 cm) diameter Rated at 882 CFM @ 0.0" SP. Intake air will be passive from holes in the cockpit lockers

One (1) General Service Temperature Switch - bulb and capillary type, range 1-150 degrees F, SPDT rated at 15 amps at 125/480 volt AC. McMaster-Carr# 47525K62. Switches wired in blower circuit with contacts closing on rising temperature

Auto Blower Stop on SEAFIRE Actuation in the compartment


One (1) Exhaust Blower each head - Jabsco Model #36770-0115 rated at 250 CFM 120 volt AC

One (1) Imtra on/off switch with indicator light for each head

Ducting is to be 4" (10.2 cm) I.D.


One (1) Supply Blower for master, and lower staterooms (6 total). McMaster-Carr model #19135K85 rated at 122 CFM 120 volt AC. On/Off wall switch for blower start and stop

Blower located to insure minimal noise in stateroom

Ducting is to be 4" (10.2 cm) I.D.

Cabin intake air is to come from a louvered intake from outside the boat and ducted to the stateroom

*Specifications subject to change without notice and at the discretion of designers and builders.
**Dimensions are subject to change with Buyer’s selected options and personal effects which may add to displacement and increase both draft and waterline length

Last updated: 07/31/09



Nordhavn Fleet