Specifications

RDNO ATHLETIC PARK
AMENITIES BUILDINGS
WE File No.029042.00
May 30, 2014
30 | P a g e
.1 Control Damper CD-1 shall open.
.2 MUA-1 shall start
.3 Exhaust Fans EF-1 and EF-2 shall start
.4 The system shall operate until space temperatures are achieved (as
sensed by the averaging temperature sensors) and for a minimum of
15 minutes.
.2 Occupied Mode:
.1 MUA-1 shall operate in occupied/unoccupied mode according to a user defined
schedule.
.2 When MUA-1 is operating in occupied mode the outdoor air dampers, fans and
the refrigeration compressors shall operate in sequence to maintain the supply
air temperature at setpoint.
.3 The space temperature setpoint shall be 14°C (58°F) in winter and 24°C (75°F)
in summer.
.4 The refrigeration compressor shall be locked out from operating when the
outdoor air temperature is below 10°C [50°F ].
.5 The refrigeration compressor control sequences shall contain minimum on and
minimum off times as recommended by the manufacturer.
.3 Fail safe Mode:
.1 In the event of a power failure, all systems shall revert to off position and restart
when power is restored if required.
.2 System shall stop if SAT set point is not maintained. Revert to failsafe position.
.3 DDC provides alarm if failure or high/low space temperature alarm
41.2 Change Room Building Control
.1 General:
.1 The Change Room system consists of the following major components:
.1 Make Up Air Unit MUA-2.
.2 Exhaust Fan EF-3
.3 Temperature Sensors (averaging mode)
.4 Outdoor air damper CD-4
.5 Condensing unit CU-2
.2 Operation:
.1 Unoccupied Mode:
.1 During unoccupied mode:
.2 The Make Up Air (MUA-2) unit shall normally be off.
.3 The Control Damper CD-4 shall be closed.
.4 Exhaust fans EF-3 shall be off.
.5 When the washroom areas require heating during unoccupied mode (as sensed
by the averaging sensors):
.6 Control Damper CD-4 shall open.
.7 MUA-2 shall start
.8 Exhaust Fans EF-3 shall start
.9 The system shall operate until space temperatures are achieved (as
sensed by the averaging temperature sensors) and for a minimum of
15 minutes.
.2 Occupied Mode: