Sample Project ABC Controls

Sample Project
Somewhere, Maryland
As Prepared By
ABC Controls
1234 Main Street
Anytown, Maryland xxxxx-xxx
Phone Number: (xxx) xxx-xxxx
Fax Number: (xxx) xxx-xxxx
Optional Field
Optional Field
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Table of Contents
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Titlepage
Table of Contents
Symbol Legend
Abbreviations / Installation Notes
Cable Specification Chart
Summary Bill of Materials
Network Layout
Fan Coil Unit
Fan Coil Sequence Page 1
Fan Coil Sequence Page 2
Fan Coil Points List
Sample Project
Somewhere, Maryland
ABC Controls
Table of Contents
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Symbol Legend
Sample Project
Somewhere, Maryland
ABC Controls
Symbol Legend
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Abbreviations / Installation Notes
Sample Project
Somewhere, Maryland
ABC Controls
Abbreviations / Installation Notes
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Cable Specification Chart
Sample Project
Somewhere, Maryland
ABC Controls
Cable Specification Chart
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Summary Bill of Materials
Sample Project
Somewhere, Maryland
ABC Controls
Summary Bill of Materials
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Network Layout
Network Panel
LGR25
1-1-0
192.168.168.1
BT485
T
ZN253
1-2-0
ZN253
1-3-0
T
ZN253
1-4-0
BT485
Sample Project
Somewhere, Maryland
ABC Controls
Network Layout
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Fan Coil Unit
Typical for 2
RA
AI - Discharge Air Temp
AI - Zone Carbon Dioxide PPM
BI - Smoke Detector
AO - Mixed Air Dampers
M
N.O.
M
T
CHW
BI - Zone Override
HW
OA
DA
T
AI - Zone Temp
M
N.C.
AI - Zone Setpoint Adjust
BI - Fan Status
BO - Fan Start/Stop
M
AO - Cooling Valve
M
CHWR
HWS
AO - Heating Valve
H
AI - Zone Humidity
HWR
CHWS
Sample Project
Somewhere, Maryland
ABC Controls
Fan Coil Unit
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Fan Coil Unit Module
Typical for 2
ZN253
Temp, Humidity, & Co2
Arcnet
Ls tat
Bias
Rx
Format
Tx
Jum per: Gain1
Rnet
Ground
Sense
+12V
RnetRnet+
Gnd
Err
IN-1
Thermis tor/dry contact
0-5Vdc
IN-2
Thermis tor/dry contact
0-5Vdc
On
4
3
2
1
23
Gnd
Rnet -
Communications Selection
Rnet
Rnet +
MSTP
Gnd
ARC156
9600
+12V
19.2k
38.4k
76.8k
IN-1
Discharge Air Temp
0-0-UI1
Fan Status
0-0-UI2
Smoke Detector
0-0-UI3
Gnd
Inputs: 5V Max
AO-2
Gnd
Gnd
IN-3
AO-1
Gnd
CAUTION:
To Reduce the Risk of Fire
or Electric Shock, Do Not
Interconnect the Outputs of
Different Class 2 Circuits.
Gnd
IN-5
LED
AO-3
Gnd
MSTP Baud
IN-2
IN-4
4
CR
2032
3
456
Tens
456
24 Vac
+
Ones
23
45 6
78
901
45 6
23
78
90 1
23
AUTOMATED LOGIC
78
78
901
MANUAL
ON
90 1
OCCUPIED
-
Pwr
Run
2
Shield
COOLER
Batt
1
Net -
O
N
CMnet
Net +
WARMER
CAUTION:
This product was designed
to be mounted inside the
building envelope. Warranty
voided if mounted outside.
ZN253
CONTROLLER
Class 2
24 Vac, 50-60 Hz
20VA, 0.83A
24Vdc, 0.2A, 5W
Use Copper
Conductors Only
DO-2
DO-1
Power for D.O.'s
®
Damper
2-0-AO3
Cooling Valve
2-0-AO2
Heating Valve
2-0-AO1
BUSS
Fan Start/Stop
2-0-DO1
BACnet
Sample Project
Somewhere, Maryland
ABC Controls
Fan Coil Unit Module
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Fan Coil Sequence Page 1
1. Fan Coil Unit (typical of 2)
Run Conditions - Scheduled:
The unit will run according to a user definable time schedule in the following modes:
• Occupied Mode: The unit will maintain
• A 75°F (adj.) cooling setpoint
• A 70°F (adj.) heating setpoint.
•
Unoccupied Mode (night setback): The unit will maintain
• A 85°F (adj.) cooling setpoint.
• A 55°F (adj.) heating setpoint.
Alarms will be provided as follows:
• High Zone Temp: If the zone temperature is greater than the cooling setpoint by a user
definable amount (adj.).
• Low Zone Temp: If the zone temperature is less than the heating setpoint by a user
definable amount (adj.).
Demand Limiting - Zone Setpoint Optimization:
To lower power consumption, the zone setpoints will automatically relax when the facility
power consumption exceeds definable thresholds. The amount of relaxation will be individually
configurable for each zone. The zone setpoints will automatically return to their previous
settings when the facility power consumption drops below the thresholds.
Zone Setpoint Adjust:
The occupant will be able to adjust the zone temperature heating and cooling setpoints at the
zone sensor.
Zone Optimal Start:
The unit will use an optimal start algorithm for morning start-up. This algorithm will minimize
the unoccupied warm-up or cool-down period while still achieving comfort conditions by the
start of scheduled occupied period.
Zone Unoccupied Override:
A timed local override control will allow an occupant to override the schedule and place the
unit into an occupied mode for an adjustable period of time. At the expiration of this time,
control of the unit will automatically return to the schedule.
Smoke Detection:
The unit will shut down and generate an alarm upon receiving a smoke detector status.
Fan:
The fan will run anytime the unit is commanded to run, unless shutdown on safeties.
Cooling Coil Valve:
The controller will measure the zone temperature and modulate the cooling coil valve to
maintain its cooling setpoint.
The cooling will be enabled whenever:
• Outside air temperature is greater than 60°F (adj.).
• AND the zone temperature is above cooling setpoint.
• AND the fan is on.
The cooling coil valve will open whenever the freezestat (if present) is on.
Heating Coil Valve:
The controller will measure the zone temperature and modulate the heating coil valve to
maintain its heating setpoint.
The heating will be enabled whenever:
• Outside air temperature is less than 65°F (adj.).
• AND the zone temperature is below heating setpoint.
• AND the fan is on.
The heating coil valve will open whenever the freezestat (if present) is on.
Economizer:
The controller will measure the zone temperature and modulate the mixed air dampers in
sequence to maintain the zone cooling setpoint. The outside air dampers will maintain a
minimum adjustable position of 20% (adj.) open whenever occupied.
The economizer will be enabled whenever:
• Outside air temperature is at least 3°F (adj.) less than the Zone Temperature.
• AND the outside air temperature is less than 75°F (adj.)
The economizer will close whenever the freezestat (if present) is on.
The outside air dampers will close and the return air damper will open when the unit is off.
If Optimal Start Up is available the mixed air damper will operate as described in the
occupied mode except that the outside air damper will modulate to fully closed.
Minimum Outside Air Ventilation - Fixed Percentage:
The outside air dampers will maintain a minimum position (adj.) during building occupied
hours and be closed during unoccupied hours.
Sample Project
Somewhere, Maryland
Discharge Air Temperature:
The controller will monitor the discharge air temperature.
ABC Controls
Fan Coil Sequence Page 1
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Fan Coil Sequence Page 2
Alarms will be provided as follows:
• High Discharge Air Temp: If the discharge air temperature is greater than
120°F (adj.).
• Low Discharge Air Temp: If the discharge air temperature is less than 40°F
(adj.).
Fan Status:
The controller will monitor the fan status.
Alarms will be provided as follows:
• Fan Failure: Commanded on, but the status is off.
• Fan in Hand: Commanded off, but the status is on.
• Fan Runtime Exceeded: Fan status runtime exceeds a user definable limit
(adj.).
Zone Carbon Dioxide (CO2) Concentration Monitoring:
The controller will measure the zone CO2 concentration.
Alarms will be provided as follows:
• High Zone Carbon Dioxide Concentration: If the zone CO2 concentration
is greater than 1000ppm (adj.) when in the occupied mode.
Zone Humidity:
The controller will monitor the zone humidity.
Alarms will be provided as follows:
• High Zone Humidity: If the zone humidity is greater than 70% (adj.).
• Low Zone Humidity: If the zone humidity is less than 35% (adj.).
Sample Project
Somewhere, Maryland
ABC Controls
Fan Coil Sequence Page 2
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Fan Coil Points List
Sample Project
Somewhere, Maryland
ABC Controls
Fan Coil Points List
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