Use the Setpoints page to configure the heating and cooling setpoints, energy management features, dehumidification featues, recovery setpoints and bypass timer.
Off-line or On-line.
Heating and Cooling setpoints: Use this section to specify the heating and cooling setpoints. The Following table gives the default value for each setpoint and its valid range.
| Setpoint | Default Value | Min. and Max. ranges | Description |
| Cool Unoccupied Stpt | 85 Deg. F or 29 Deg. C |
45-99 Deg. F or 7-37 Deg. C |
Unoccupied cooling setpoint Display resolution: 1 deg F/deg C. Unoccupied Cool >= Occupied Cool >= Occupied Heat +2 deg F ( 1 deg C) Unoccupied Cool >= Standby Cool >= Standby Heat +2 deg F ( 1 deg C) |
| Cool Standby Stpt | 78 Deg. F or 26 Deg. C |
45-99 Deg. F or 7-37 Deg. C |
Standby cooling setpoint Display resolution: 1 deg F/deg C. Unoccupied Cool >= Standby Cool >= Standby Heat +2 deg F ( 1 deg C) |
| Cool Occupied Stpt | 75 Deg. F or 24 Deg. C |
45-99 Deg. F or 7-37 Deg. C |
Occupied cooling setpoint Display resolution: 1 deg F/deg C. Unoccupied Cool >= Occupied Cool >= Occupied Heat +2 deg F ( 1 deg C) Max Occupied Cool >= Occupied Cool >= Occupied Heat +2 deg F( 1 deg C) |
| Heat Occupied Stpt | 70 Deg. F or 21 Deg. C |
40-90 Deg. F or 4-32 Deg. C |
Occupied heating setpoint Display resolution: 1 deg F/deg C. Unoccupied Heat <= Occupied Heat <= Occupied Cool -2 def ( 1 deg C) Min Occupied Heat <= Occupied Heat <= Occupied Cool -2 deg F( 1 deg C) |
| Heat Standby Stpt | 67 Deg. F or 19 Deg. C |
40-90 Deg. F or 4-32 Deg. C |
Standby heating setpoint Display resolution: 1 deg F/deg C. Unoccupied Heat <= Standby Heat <= Standby Cool -2 def ( 1 deg C) |
| Heat Unoccupied Stpt | 55 Deg. F or 13 Deg. C |
40-90 Deg. F or 4-32 Deg. C |
Unoccupied heating setpoint Display resolution: 1 deg F/deg C. Unoccupied Heat <= Occupied Heat <= Occupied Cool -2 def ( 1 deg C) Unoccupied Heat <= Standby Heat <= Standby Cool -2 def ( 1 deg C) |
| Min Heat Occupied Stpt | 55 Deg. F or 13 Deg. C |
40-90 Deg. F or 4-32 Deg. C |
Lowest the programmed occupied heating setpoint can be allowed. Display resolution: 1 deg F/deg C. Min Occupied Heat <= Occupied Heat <= Occupied Cool -2 deg F (1 deg C) |
| Max Cool Occupied Stpt | 85 Deg. F or 29 Deg. C |
45-99 Deg. F or 7-37 Deg. C |
Highest the programmed occupied cooling setpoint can be allowed. Max
Occupied Cool >= Occupied Cool >= Occupied Heat + 2 deg F (1 deg C) |
Energy Management
Configure the DLC bump according to the heating and cooling requirement of the building from one of the options given below. When a shed request is received, the thermostat bumps the control set point up for cooling and down for heating by the amount this field is configured in a thermostat. The shed state remains until a DLC restore command is received or network communication is lost. When the unit transitions from shed to restore, the set point is ramped back to the original set point over a period of 60 minutes. The control only sheds when the thermostat is in the occupied mode.
Configure the value for power sequential start by choosing one of the options 0 to 150 seconds. This allows the thermostat to delay start of the fan heating and cooling stages after power is restored to thermostat. After a power outage, it is desirable to start multiple units sequentially instead of all at once to avoid peak in power consumption.
Dehumidification
Use this field to configure a dehumidfication strategy. If the system is in heat mode, dehumidification is not allowed.
Use this to specify the high limit for the dehumidification is started.
Any combination of the following 3 strategies is allowed:
Dehumidification using Minimum On Time
This option is available to configure only when the humidity input is configured in the
General page. This is the minimum time the auxiliary relay configured for dehumidification
is ON. When this option is selected, user will be provided with an option to configure the
minimum on time ranging from 5 to 15 minutes.
Dehumidification using Reheat. (not supported on subbase 4)
This option is available to configure only when the humidity input is configured in the
General page. When this is selected, the thermostat switches on the first heating stage
when the dehumidification is required. This option is available for only T7350H1009 model
type.
Dehumidification using Reset Temp Setpt
This option is available to configure only when the humidity input is configured in the
General page. When this is selected , user is allowed to specify a temperature value. When
this option is selected, the thermostat reduces the effective cooling temperature setpoint
by the amount specified by the user.
The dehumidify setpoint must be smaller than the difference between the cooling and heating occupied setpoints and the difference between the cooling and the heating standby setpoints. When one of these setpoints change, the wizard automatically adjusts the dehumid reset setpoint such that the above condition is satisfied.
When Reset Temp Setpt and Reheat option are selected, the wizard displays a warning message, but proceeds with this configuration.
Recovery
The thermostat allows the adaptive intelligent recovery ramp to the next setpoint during schedule mode changes.
Use the Setpoints screen to configure the recovery parameters. Set point recovery will apply to set point changes associated with the following schedule mode changes:
Unoccupied to Standby
Unoccupied to Occupied
Setpoint changes from occupied mode or standby mode to unoccupied mode, occupied mode to standby mode and standby to occupied will use a step change in setpoint. The heating or cooling recovery ramp will begin before the next mode transition time. During the recovery ramps, the heating and cooling set points will be ramped from the existing mode setpoint to the next mode setpoint.
There will be two (2) standard options available for
choosing the heating and cooling ramp rates: Single Recovery and Variable Recovery Ramp
Rate.
For heating or cooling recovery, minimum and maximum recovery ramp rates are provided.
Making both of these the same is called Single Recovery. Making these rates different is
called Variable Recovery.
Minimum Ramp Rate
Minimum Cool and heat recovery ramp rates are selectable from 0 to 20 DDF/hr ( 0 - 11 DDC/hr). A ramp rate of 0 means no recovery ramp (the setpoint steps from one setpoint to the other).
The recovery ramp rate will vary as a function of outdoor temperature.
Max Ramp Rate
Maximum Cool and heat recovery ramp rates are selectable from 0 to 20 DDF/hr ( 0 – 11 DDC/hr). A ramp rate of 0 means no recovery ramp (the setpoint steps from one setpoint to the other). This field is enabled only if the outdoor air temperature input is configured in the General Page.
OAT Min Ramp
The minimum and maximum outdoor corresponds to the
minimum and maximum recovery rate. Configure the Outdoor air temperature setpoint for cool
and heat recovery at which the minimum rate is equal to the value specified in the cool
and heat ‘Min Ramp Rate’ fields. The value is configurable from –20 to 100
deg F( -29 to 38 deg C). This option is available to configure only if the outdoor air
temperature input in the General page is configured.
OAT Max Ramp
The minimum and maximum outdoor corresponds to the minimum and maximum recovery rate. Configure the Outdoor air temperature setpoint for cool and heat recovery at which the maximum rate is equal to the value specified in the cool and heat ‘Max Ramp Rate’ fields. The value is configurable from –20 to 100 deg F( -29 to 38 deg C). This option is available to configure only if the outdoor air temperature input in the General page is configured.
Recovery Lead Time Information
The setpoint ramp will be at the target setpoint 10 minutes prior to the occupied/standby event time. This allows the HVAC equipment an extra 10 minutes to get the space temperature to the target setpoint during recovery. (The T7300 series 1000 did a similar method). Based on the heat and cool setpoints configured and the minimum and maximum ramp rates configured, the wizard automatically calculates the lead time information for both cool and heat recovery ramps and displays it in this section.
Note: This data is applicable when the
unoccupied setpoints change to occupied or standby modes.
When the setpoint changes from occupied or standby mode to unoccupied mode or when the
minimum or maximum ramp rates are 0, there will be step change in the setpoint.
Bypass
The temporary override time is the maximum time the controller stays in the occupied mode, when its unoccupied mode was overridden and put in bypass mode. This value is selectable from 1 – 8 hrs.
When no outdoor air temperature sensor is available, the minimum recovery ramp rate is used. The recovery ramps have the following configuration parameters:
Minimum heating recovery ramp rate.
Maximum heating recovery ramp rate.
Minimum heating outdoor air temperature.
Maximum heating outdoor air temperature.
Minimum cooling recovery ramp rate.
Maximum cooling recovery ramp rate.
Minimum cooling outdoor air temperature.
Maximum cooling outdoor air temperature.