Honeywell S7999D SOLA - Page 21

21 65-0315—02
Delta T Limit Configuration
Parameters
(R7910 Hydronic Control Only)
Table 20 displays other limit parameters. Use the left and right
arrows to switch between Inlet to Outlet Flow and Exchanger
to Outlet Flow. The parameters are the same for all pumps.
Fig. 40. Delta T Limit configuration.
T-Rise Limit Configuration
Parameters
Table 21 displays T-Rise limit parameters.
Heat Exchanger High Limit
Configuration Parameters
Table 22 displays T-Rise limit parameters.
Table 20. Delta T Limit
Configuration Parameters.
Parameter Comment
Delta T enable Enabled
Disabled
Delta T degrees 0 °F to 234 °F (-17 °C to 112 °C)
Delta T delay ___hour ___min ___sec
Delta T response Recycle & delay
Recycle & Delay with retry limit
Lockout
Delta T retry limit 0–100
Delta T rate limit
enable
Enabled
Disabled
Delta T inverse limit
time
___hour ___min ___sec
Delta T inverse limit
response
Recycle & delay
Recycle & delay with retry limit
Lockout
Table 21. T-Rise Limit Configuration Parameters.
Parameter Comment
Outlet T-rise enable Enabled
Disabled
Heat exchanger T-
rise enable
Enabled
Disabled
T-rise degrees 0 °F to 234 °F (-17 °C to 112 °C)/sec
T-rise response Recycle & delay
Recycle & delay with retry limit
Lockout
T-rise retry limit 0 to 100
T-rise delay ___hour ___min ___sec
Table 22. Heat Exchanger High Limit
Configuration Parameters.
Parameter Comment
Heat exchanger high
limit enable
Enabled
Disabled
Heat exchanger high
limit setpoint
32 °F to 250 °F (0 °C to 121 °C)
Table 20. Delta T Limit
Configuration Parameters. (Continued)