Repair Information - Johnson Controls WT-4002-MCR Installation Instructions Manual

Table 4: BACnet Objects of the WT-BAC-IP Gateway (Part 2 of 2)
Register Point Name
Number
62 User_SP
69 SP_PSI
70 Action_Direction
Gain
71 Throttle_Range
72 Unocc_PSI
73 Low_PSI_Value
79 Temp_Unit
MS_Grace
201 Hop_Count
202 1st_Hop_ID_H
1st_Hop_ID_L
204 RSSI
Batt_Voltage
224 RF_Channel
510 Dev_Type

Repair Information

If the WT-4000 Series Pneumatic-to-DDC Room
Thermostat fails to operate within its specifications,
replace the unit. For a replacement room thermostat,
contact the nearest Johnson Controls representative.
WT-4000 Series Pneumatic-to-Direct Digital Control (DDC) Room Thermostats Installation Instructions
Description
The user setpoint specified by pressing up/down buttons on the unit; default
70°F.
The target branch line pressure when the temperature is at setpoint value;
default 9.0 PSI; valid range 1.0 to 22.0 PSI.
Acting direction: 0 (default) – direct acting; 1 – reverse acting
Gain (change in branch line pressure in response to temperature change);
default 2.0 PSI for each 1°F change; valid range 1.0 to 5.0 PSI.
Temperature range when pressure changes in response to temperature
change; default 6.0° F; valid range 0.0 to 10.0°F.
Branch line pressure when unit is in unoccupied mode and within temperature
constrained float limits, in PSI.
In the case where Error Reporting Register indicates insufficient pressure,
this register holds the maximum branch line pressure of the system at that time,
in PSI.
The unit of temperature; 0 represents °F, and 1 represents °C. The default is
°F. Any change to this value reboots the device.
The grace period (number of minutes) that the unit waits for motion detection
before it goes into shoulder mode. The default is 30 minutes, and the range is
10 to 100 minutes.
If the unit detects motion while it is in shoulder mode, it comes out of shoulder
mode within 5 minutes.
Motion detection is disabled if this register is set to less than 10 minutes or if
supply pressure is zero.
The number of hops through which the device's data is routed to reach the
MeshGate; value 65535 indicates that the device is offline.
High byte of device ID of the first hop node
Low byte of device ID of the first hop node
Radio received signal strength (RSSI); signed 8 bit for Modbus register;
BACnet object shows actual value.
Battery voltage level in VDC
The radio channel number used by the device
This register holds an integer value that identifies the device type in the
wireless network. This is for use by the MeshGate, not for customer
applications.
26
BACnet
Object
Type
AI
AV
AV
AV
AV
AV
AI
AV
AV
AI
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AI
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AI