KWE 704501, Technical, Installation And Configuration Information

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DDR OT/BACIP Gateway
DDRA 015 v1.1 04/2010
18
Analogue Input Overview
BACnet control mode (Manual)
This feature is enabled when AO-1 is set to 1
(BACnet control), the gateway will ignore the
thermostat (if connected) and communicate
directly with the boiler. The Control Set-point will
now determine the boiler target temperature. The
gateway no longer retrieves any values from the
thermostat, these object will change to a value of
-99.
Temperature Units
You have the ability to control whether
temperatures are displayed in Celsius or
Fahrenheit by setting AO-2 (Analog Output 2).
This will also determine whether the Control Set-
point (AO-3) is provided in
⁰
C or
⁰
F.
BACnet Objects
BACnet Object Description Units Source
Analog Input 1 Boiler Set-point
⁰
C /
⁰
F T / M
Analog Input 2 Boiler water temperature
⁰
C /
⁰
F B
Analog Input 3 Maximum Modulation level % T
Analog Input 4 Current Modulation level (boiler modulation) % B
Analog Input 5 Room Temperature
⁰
C /
⁰
F T
Analog Input 6 Room Set-point temperature
⁰
C /
⁰
F T
Analog Input 7 Outside Temperature
⁰
C /
⁰
F T
Analog Input 8 Return Water Temperature ⁰ C / ⁰ F B
Analog Input 9 Flue Gas Temperature ⁰ C / ⁰ F B
Analog Input 10 Boiler Heat Exchanger Temperature ⁰ C / ⁰ F B
Analog Input 11 Boiler Fan Speed Hertz B
Analog Input 12 Water Pressure Bar / PSI B
Analog Input 13 OEM Fault Code 0-255 B
Analog Input 14 OEM Diagnostic Code 0 - 65535 B
Binary Input 1 Boiler Fault (no fault / fault) 0/1 B
Binary Input 2 Flame Status (no flame / flame) 0/1 B
Binary Input 3 Fault - Service Required (not req'd / req'd) 0/1 B
Binary Input 4 Fault - Lockout Reset 0/1 B
Binary Input 5 Fault - Low Water Pressure 0/1 B
Binary Input 6 Fault - Gas / Flame 0/1 B
Binary Input 7 Fault - Air Pressure 0/1 B
Binary Input 8 Fault - Water Over-Temperature 0/1 B
Analog Output 1 Control source (Setpoint from Thermostat or Manual) 0/1
Analog Output 2 Temperature Units (
⁰
C /
⁰
F) 0/1
Analog Output 3 Control Set-point (only if control source is Manual)
⁰
C /
⁰
F
Analog Output 4 Control Method (Setpoint / Modulation Controlled) 0/1
T=Thermostat B=boiler M=Manual (BACnet)
Temperature units displayed / Set-point units, is determined by Analog Output 2