ASHRAE Journal - September 2022 - 39
TECHNICAL FEATURE
FIGURE 4 Enable/enable/disable of hot deck valve control..
FIGURE 5 Enable/disable of cold deck valve control.
Any Zone
Damper
Hot Deck
Hot Deck
Valve Control
(On Or Off)
0%
25%
DMPR (ZN-HD-D-C)
Open
60% 100%
(Percent) DMPR
Closed
Hot Deck Valve Control (On Or Off)
Based On Hot Deck Zone Damper Command
sensors were used in certain zones to adjust the system
ventilation level based on space use. Where occupancy
sensors were used, in classrooms and conference rooms,
they were passive infrared (PIR) type and located on the
ceiling. If any of these sensors sensed occupancy, the
Valve Control
'Enable'
Valve Control
Remains At
Last State
All Zone
Dampers
Hot Deck
Valve Control
'Disable'
Cold Deck
Valve Control
(On Or Off)
0%
5%
DMPR (ZN-CD-D-C)
Closed
15% 100%
(Percent) DMPR
Open
Cold Deck Valve Control (On Or Off)
Based On Cold Deck Zone Damper Command
control system signaled the AHU to provide full ventilation
as if all zones were occupied. In the CO2 sensor scenario,
the sensors were co-located with the thermostats
in each densely occupied space (cubicled offi ces and
conference rooms), and the ventilation airfl ow setpoint
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All Zone
Dampers
Cold Deck
Valve Control
'Disable'
Valve Control
Remains At
Last State
Any Zone
Damper
Cold Deck
Valve Control
'Enable'
www.armacell.us/resources/Armacell-Academy
S E P T E M B E R 2 0 2 2 ashrae.o rg ASHRAE JOURNAL
39
© Armacell, 2022
http://www.armacell.us/resources/Armacell-Academy
https://ashrae.org/
ASHRAE Journal - September 2022
Table of Contents for the Digital Edition of ASHRAE Journal - September 2022
Contents
ASHRAE Journal - September 2022 - Intro
ASHRAE Journal - September 2022 - Cover1
ASHRAE Journal - September 2022 - Cover2
ASHRAE Journal - September 2022 - 1
ASHRAE Journal - September 2022 - Contents
ASHRAE Journal - September 2022 - 3
ASHRAE Journal - September 2022 - 4
ASHRAE Journal - September 2022 - 5
ASHRAE Journal - September 2022 - 6
ASHRAE Journal - September 2022 - 7
ASHRAE Journal - September 2022 - 8
ASHRAE Journal - September 2022 - 9
ASHRAE Journal - September 2022 - 10
ASHRAE Journal - September 2022 - 11
ASHRAE Journal - September 2022 - 12
ASHRAE Journal - September 2022 - 13
ASHRAE Journal - September 2022 - 14
ASHRAE Journal - September 2022 - 15
ASHRAE Journal - September 2022 - 16
ASHRAE Journal - September 2022 - 17
ASHRAE Journal - September 2022 - 18
ASHRAE Journal - September 2022 - 19
ASHRAE Journal - September 2022 - 20
ASHRAE Journal - September 2022 - 21
ASHRAE Journal - September 2022 - 22
ASHRAE Journal - September 2022 - 23
ASHRAE Journal - September 2022 - 24
ASHRAE Journal - September 2022 - 25
ASHRAE Journal - September 2022 - 26
ASHRAE Journal - September 2022 - 27
ASHRAE Journal - September 2022 - 28
ASHRAE Journal - September 2022 - 29
ASHRAE Journal - September 2022 - 30
ASHRAE Journal - September 2022 - 31
ASHRAE Journal - September 2022 - 32
ASHRAE Journal - September 2022 - 33
ASHRAE Journal - September 2022 - 34
ASHRAE Journal - September 2022 - 35
ASHRAE Journal - September 2022 - 36
ASHRAE Journal - September 2022 - 37
ASHRAE Journal - September 2022 - 38
ASHRAE Journal - September 2022 - 39
ASHRAE Journal - September 2022 - 40
ASHRAE Journal - September 2022 - 41
ASHRAE Journal - September 2022 - 42
ASHRAE Journal - September 2022 - 43
ASHRAE Journal - September 2022 - 44
ASHRAE Journal - September 2022 - 45
ASHRAE Journal - September 2022 - 46
ASHRAE Journal - September 2022 - 47
ASHRAE Journal - September 2022 - 48
ASHRAE Journal - September 2022 - 49
ASHRAE Journal - September 2022 - 50
ASHRAE Journal - September 2022 - 51
ASHRAE Journal - September 2022 - 52
ASHRAE Journal - September 2022 - 53
ASHRAE Journal - September 2022 - 54
ASHRAE Journal - September 2022 - 55
ASHRAE Journal - September 2022 - 56
ASHRAE Journal - September 2022 - 57
ASHRAE Journal - September 2022 - 58
ASHRAE Journal - September 2022 - 59
ASHRAE Journal - September 2022 - 60
ASHRAE Journal - September 2022 - 61
ASHRAE Journal - September 2022 - 62
ASHRAE Journal - September 2022 - 63
ASHRAE Journal - September 2022 - 64
ASHRAE Journal - September 2022 - 65
ASHRAE Journal - September 2022 - 66
ASHRAE Journal - September 2022 - 67
ASHRAE Journal - September 2022 - 68
ASHRAE Journal - September 2022 - 69
ASHRAE Journal - September 2022 - 70
ASHRAE Journal - September 2022 - 71
ASHRAE Journal - September 2022 - 72
ASHRAE Journal - September 2022 - Cover3
ASHRAE Journal - September 2022 - Cover4
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