Units Required:
1 Frigomar Chilled Water Condensing Unit Model 603 (39000 BTU).
2 Frigomar Air Handlers Model 742 Type S (Total Cap 9000 BTU) for Fwd/Owners Cabin.
2 Frigomar Air Handlers Model 742 Type S (Total Cap 18000 BTU) for Saloon.
2 Frigomar Air Handlers Model 742 Type S (4800 BTU for each cabin) Aft Guest Cabins.
5 Bulkhead Mount Digital Controllers for Air Handlers.
Mechanical Ventilation
The mechanical supply and exhaust ventilation shall be through properly baffled grilles
in the cabin house with water traps as designed by the Architect. Each ventilation outlet
shall have portable storm closures with stand-offs. All ducts shall be sized for velocity
not to exceed 1500 feet per minutes. All blowers shall be resilient mounted and noise
shall be minimised.
In the galley is an extractor hood that shall exhaust through a custom grill and baffle box
in the coachroof coaming.
The engine room shall have one exhaust fan, Par flange mount 24V dc. Engine room
supply and exhaust air shall be ducted through grills, water traps, baffles and trunks as
designed by the Architect. Exhaust air will vent P/S through grills in the coach roof side.
Special care shall be taken to minimize noise transmission.
Additional blowers as necessary for ventilation purposes, such as electronics
enclosures shall be fitted by the Builder.
Quantity and Type:
1 off Jabsco Heavy Duty Flangemount 4” Blower 7.1m
3
/min, 24 Volt.
8.2. Refrigeration System
The refrigeration system shall be supplied by Frigomar Refrigeration. The freezer is to
be maintained at -18 degrees C and the chill box at 4 degrees C with an ambient air
temperature of 38 degrees C and sea water temperature of 26 degrees C under normal
usage. Each box shall have its own temperature gauge located nearby. The refrigerator
and freezer boxes are custom made and shall be constructed with stainless steel liners
and insulation according to the refrigeration suppliers plans and specifications.
Insulation thickness to be a minimum of 75mm (3”) for the freezer and 50mm (2”) for the
fridge. The boxes will incorporate drains to a sump/bottle, and slide out bins/baskets
with stops. The doors will lever style handles and suitable heavy-duty hinges. The
freezer/refrigeration system shall operate using combination AC/DC driven compressors.
They shall take suction from the engine room common sea chest and shall have a
common overboard discharge with a non-return check valve and stop valve on each unit.
The salt-water cooling circulation pumps shall be the continuous duty type and be
resilient mounted and easily accessed for service.
Refrigerant from the compressor units shall be piped to and from the evaporator plates
using insulated copper pipe. It is critical that the insulation of the copper be unbroken for
it's entire length without break at the supporting clips.
A Frigomar icemaker will also be supplied and installed in the starboard aft saloon
locker.
Units Required:
2 Frigomar Mod. 505 S Compressors for Fridge and Freezer.
1 Evaporator Plate for Freezer. 1
Evaporator Plate for Fridge. 1
Raw Water Circulation Pump.
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