Specifications; Operation; Curtailment Menu Mode; Automatic System Changeover - White Rodgers 1F88-270 Installation Instructions Manual

CONFIGURATION MENU CONFIGURATION MENU
CONFIGURATION MENU CONFIGURATION MENU CONFIGURATION MENU

Curtailment Menu Mode

Curtailment Menu Mode Curtailment Menu Mode
Curtailment Menu Mode Curtailment Menu Mode
The thermostat will be able to display information received from
the VHF remote signal utilizing the Curtailment Install menu.
With the thermostat in the OFF OFF OFF OFF Mode, press OFF
to enter the Installer/Configuration Menu, Then hold PRGM to
put the thermostat into a Curtailment Menu Mode.
Once activated, the thermostat will relinquish control of the
thermostat's display to the communications receiver and trans-
late any pushbutton selection to the receiver. This feature may
be exited by pressing RUN or when 120 seconds has elapsed
without keypad activity.

SPECIFICATIONS

SPECIFICATIONS
SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS

ELECTRICAL DATA

ELECTRICAL DATA
ELECTRICAL DATA ELECTRICAL DATA ELECTRICAL DATA
Electrical Rating Electrical Rating Electrical Rating:
Electrical Rating Electrical Rating
20 to 30 VAC 50/60 Hz or DC
0.2 to 0.8 Amps (Y1, E/W1, G Combined load)
1.5 Amps (Y2, W2, O, B Load per terminal)
2.5 Amps Maximum Total Load (All terminals combined)

OPERATION

OPERATION OPERATION
OPERATION OPERATION
The system "mode" is selected by pressing the SYSTEM
button. Icons on the bottom right corner of the display will
COOL COOL
indicate the mode: COOL COOL COOL, AUTO
any mode except OFF OFF OFF OFF, the setpoint temperature will be shown OFF
on the right side of the display. In OFF
The current temperature will be displayed on the left side of the
display.
To operate properly in the AUTO
temperature cannot be the same as or higher than the cool
setpoint temperature. The heat setpoint must be at least 1°
lower than the cool setpoint.

Automatic System Changeover

Automatic System Changeover Automatic System Changeover Automatic System Changeover Automatic System Changeover
When the thermostat is in the AUTO
"COOL COOL COOL COOL" are displayed. The thermostat will call for heat or cool COOL
depending on the room temperature. The setpoint temperature
displayed will be that of the last mode called. If the last system
cycle was heat, the HEAT HEAT setpoint will be displayed. If the room HEAT HEAT HEAT
temperature raises above the HEAT
setpoint and a call for cool is required, the temperature dis-
played will change to be the COOL
8
and together
AUTO AUTO HEAT HEAT EMER EMER OFF OFF
AUTO AUTO, HEAT HEAT HEAT, EMER EMER EMER, or OFF OFF OFF. In
OFF OFF
OFF, this area will be blank. OFF
AUTO AUTO mode, the heat setpoint AUTO AUTO
AUTO AUTO AUTO mode, both "HEAT AUTO HEAT HEAT HEAT HEAT" and
HEAT HEAT setpoint and the COOL HEAT
HEAT
COOL COOL COOL setpoint. COOL
This menu will receive display information from the receiver.
During the request the thermostat will display the curtailment
menu data. If failure to communicate to the receiver has
occurred, the thermostat will display "COMM
the display for a second and will return to normal thermostat
operation. During this time, the normal communications fault
procedure will be performed.

THERMAL DATA

THERMAL DATA THERMAL DATA
THERMAL DATA THERMAL DATA
Setpoint Temperature Range Setpoint Temperature Range: Setpoint Temperature Range Setpoint Temperature Range Setpoint Temperature Range
45°F to 90°F (7°C to 32°C)
Operating Ambient Temperature Range Operating Ambient Temperature Range
Operating Ambient Temperature Range: Operating Ambient Temperature Range Operating Ambient Temperature Range
32°F to 105°F
Operating Humidity Range Operating Humidity Range: Operating Humidity Range Operating Humidity Range Operating Humidity Range
0 to 90% RH (non-condensing)
Shipping Temperature Range Shipping Temperature Range: Shipping Temperature Range Shipping Temperature Range Shipping Temperature Range
-40°F to 150°F
Second Stage Time Delay Second Stage Time Delay Second Stage Time Delay Second Stage Time Delay Second Stage Time Delay
Your thermostat is designed to determine the optimum time to
activate the second stage. Simply raising the temperature in
heating or lowering it in cooling will not always force the
thermostat to bring the second stage on quickly. There is a time
delay from 0-30 minutes depending on the performance of the
first stage of the system.
EXAMPLE: For the last 2 hours the thermostat is set on 70° and
the room temperature is 70° with the equipment using only the
first stage of heat. Since the equipment is keeping the tempera-
ture within 1 degree of setpoint, the thermostat will delay
second stage for a longer time if you manually raise the
temperature or if the room temperature quickly changes. Once
the second stage comes on, it will come on sooner the next time
there is a difference between the setpoint and the room
temperature. The net effect of the staging program is that when
the first stage is capable of making temperature the second
stage will delay longer. When the thermostat calculates that
COOL COOL COOL
COOL
first stage cannot make temperature in a reasonable time, the
second stage will come on sooner. This built in function
automatically optimizes the use of additional stages of heat or
cool.
COMM COMM FAULT FAULT
COMM COMM" and "FAULT FAULT FAULT" on