Peak cooling loads for selection
of guestroom fan coil units on peak exterior loading with
sheers closed, two people per room and 250 watts per room
electric load. Guest Room heating and cooling units shall
be fan coil type. Self contained terminal air conditioning
units or heat pumps may not be used.
If horizontal concealed fan coil units are used, they
shall be located over the foyer ceiling, with filter access
doors as return grills.
If vertically stacked fan coil units are used, air outlets
shall be located so as not to cause drafts and to minimise
sound levels at the bed location.
The fan coil units shall be sized to maintain desired
room temperature at no higher than medium speed.
Individual Guest Room thermostats shall be provided. The
thermostat shall be a combination heating cooling type with
colour coded graduated temperature adjustment, on off switch
and multiple 3 speed fan control.
Thermostat shall be adjustable through 5oK by the guest.
Control valves shall be two way type. The thermostat shall
throttle the control valve only; fan control is not acceptable.
Isolation of the fan (off position) will disable the thermostat
and drive control valves closed.
• Supply Air: Quantity equals 102 m3/hr (60 cfm) per
guestroomand must be 20% or 4.7 l/s (10 cfm) greater than
toilet exhaust, to each guestroom.vertical stack
• Fan coil units located in the guestroom interior,
hard duct make-up air into the return section of the fan
coil unit. For horizontal fan coil units hard duct make-up
air into the supply grille on vertical bulkhead of the entry
vestibule.
•Provide four pipe horizontal type with chilled water
cooling coil with two-way motorized valve, hot water heating
coil with motorized two-way valve, flow control valves,
integral insulated drain pan and filter return cabinet.
Provide a constant flow device with Pressure Temperature
(P/T) ports on the return side of each coil. Provide a ball
valve on the supply side of each coil. Exposed insulation
is not allowed inside fan coil units.
• Location: Install horizontal units above ceiling
of guestroom, entry vestibule, positioned not to blow directly
on the bed. Coordinate return grille, thermostat, and access
panel with Interior Design.
• Thermostat: Provide programmable digital controller
to maintain space temperature. Controller to include pushbuttons
for off/auto, fan, setpoint or room temperature display,
up arrow (warmer), down arrow (cooler) and ºC/ºF
selector. (Some guestroom thermostad manufacturers) .
• Piping: Provide full-port ball valves for shut-off
on chilled water and hot water coil connections.
• Condensate Drains: Do not connect fan coil unit
condensate drains to plumbing fixtures. Hard pipe to< sanitary
sewer.
Guestroom Corridor System:
• Supply air quantity 15% greater than total exhaust
of adjacent spaces per corridor (excluding guestrooms),
or minimum 2 air changes per hour with vertical ducts and
sidewall supply registers located at the egress stairs in
a minimum of two locations.
• Smoke Control : During smoke control phese, guestroom
make-up air system and toilet exhaust system shall operate
as normal |
