Reznor ZQYRA Unit Installation Manual - Manual (Page 55)

Form I-ZQYRA P/N 260414R5, Page 55
8.7.2 LONworks ®
(Option BHB7)
Communication
Control Display Description Range Factory Default
“BMS Config” Menu
Protocol: LON - -
To view and adjust this parameter, go to the BMS Config menu that is
located under Service Menu/System. The protocol must be set to “LON”.
The Lonworks communication card has the following components.
1. Serial port connection
2. Terminal block for LonWorks ® network (GND, A, B)
3. Service pin
4. Service green LED
5. Anomaly red LED
To activate the service pin, simply short-circuit the two pins for an
instant using the tip of a screwdriver or similar tool. The activation is confirmed by the lighting of the service LED.
LonWorks ® is an open protocol that was originally developed by Echelon Corpora-
tion. It is now maintained by Echelon in collaboration with members of the LonMark ®
Interoperability Association. It requires the use of Echelon’s Neuron microprocessor to
encode and decode the LonWorks packets.
The LonWorks protocol is based on the concept of using standardized functional pro-
files to control similar pieces of equipment. The LonWorks ® (Option BHB7) communi-
cation allows access to all unit function parameters. The network is considered open
communication, whereas any device on the network has the capability to receive input
from any other controller on the network. In all Z Series units included on a LonWorks ®
network, the unit protocol configuration parameters must be set before communication
can be established with other devices.
The service LED has several function listed below.
LED Light Description Troubleshooting
Green
1. Signals the status of the mode, as per the LonWorks protocol;
2. Remains ON during the activation of the service pin;
3. Remains ON for a second when receiving a WINK command from the network
The anomaly LED indicates the status of communication between the card and the controller.
LED Light Description Troubleshooting
Off Communication with controller is established and working.
Red Communication is not established and no data is passing to the card.
1. Confirm card is firmly plugged in.
2. Confirm BMS Protocol is set to LON.
LONworks ® Point List
Name Description
Read/
Write
LonWorks ® FTT-10A
Limits
Default
Setpoints Index Name NV Bit # Type NV
Analog Values
DpCngOvrLt Wheel Dewpoint Changeover Limit R/W 107 nviDpCngOvrLt - SNVT_temp_p 55 - 65°F 59
DatSpHiDp
Discharge Air Temperature Setpoint with
High Dewpoint
R/W 108 nviDatSpHiDp - SNVT_temp_p 55 - 65°F 58
Note: Points used only when control set to Dewpoint (See TempCntrl = 0)
DatSpLoDp
Discharge Air Temperature Setpoint with
Low Dewpoint
R/W 109 nviDatSpLoDp - SNVT_temp_p 55 - 75°F 70
ActDatSp Active DA setpoint R 100 nvoActDatSp - SNVT_temp_p - -
Note: Points used only when control set to Dewpoint with OA Changeover or Space Changeover Setpoint (See TempCntrl = 1 or 3)
DatHtgLoDp
Discharge Air Temperature Heating
Setpoint with Low Dewpoint
R/W 110 nviDatHtgLoDp - SNVT_temp_p 55 - 75°F 70
DatClgLoDp
Discharge Air Temperature Cooling
Setpoint with Low Dewpoint
R/W 111 nviDatClgLoDp - SNVT_temp_p 55 - 75°F 60
Note: Points used only when control set to Dewpoint with OA Reset (See TempCntrl = 2)
OaLoSpLoDp Outside Air Temperature Low Setpoint with
Low Dewpoint
R/W 112 nviOaLoSpLoDp - SNVT_temp_p 55 - 80°F 65
OaHiSpLoDp Outside Air Temperature High Setpoint with
Low Dewpoint
R/W 113 nviOaHiSpHiDp - SNVT_temp_p 55 - 80°F 70
DaLoSpLoDp Discharge Air Temperature Low Setpoint
with Low Dewpoint
R/W 115 nviDaLoSpHiDp - SNVT_temp_p 55 - 75°F 58
DaHiSpLoDp Discharge Air Temperature High Setpoint
with Low Dewpoint
R/W 114 nviDaHiSpHiDp - SNVT_temp_p 55 - 75°F 70
Note: Points used only when control set to Dewpoint with Space Changeover Setpoint (See TempCntrl = 3)
Zone Zone temperature (AI_1) R 101 nvoZone - SNVT_temp_p - -
ZnCngOv
Heating/Cooling Zone Temperature
Changeover Setpoint
R/W 116 nviZnCngOvr SNVT_temp_p 55 - 80°F