The thermostat should be mounted:
Do not mount thermostat:
Outdoor temperature can be measured by attaching an 8052 sensor to the S1 and S2 terminals. The outdoor sensor must be enabled in the installer setup menu.
Heat pump models can use the outdoor temperature to effectively utilize the heat pump:
Outdoor temperature sensor should be mounted:
A remote temperature sensor can be used if the thermostat has to be mounted in a concealed location. A 8051 flush mount or 8053 surface mount remote temperature sensor can be attached to the T1 and T2 terminals and mounted in a recommended area. The remote sensor must be enabled in the installer setup menu. When the remote sensor is installed it overrides the internal sensor.
Remote temperature sensor should be mounted:
Do not mount remote sensor:
The thermostat is dual power. It can either be AC or battery powered, or both (to provide backup power for the clock). Batteries are optional if your thermostat was wired to run on AC power when installed.
For heat pump systems the C terminal must be connected to the common of the 24VAC transformer in order for the system fault and emergency heat indicators to operate. The thermostat has a memory backup that saves the thermostat settings in case of a power interruption. The system settings will be retained but the clock will reset after 90 seconds with no battery or AC power. The reset button located under the battery cover can be used to reset the thermostat to factory defaults. The system settings will also be reset to default.
Wire specifications:
18-24 gauge thermostat wire
Installation notes:
C – Common (optional when powered by batteries)
B – Reversing valve1
O – Reversing valve1
Y – 1st stage cooling/compressor
Y2 – 2nd stage cooling/compressor
G – Fan
RC – 24VAC supply cooling2
R – 24VAC supply heating2
W2 – 2nd stage heat / auxiliary
W – 1st stage heat / auxiliary
L – System fault indicator (optional) (heat pump only) S1 & S2 – outdoor temperature sensor (optional)
T1 & T2 – remote temperature sensor (optional) O and B terminals are both de-energized when system mode is OFF or in AUTO when the heating and cooling equipment is idle. 2 Jumper between RC & R is used in single transformer systems (see wiring diagrams).
SINGLE TRANSFORMER (USE JUMPER WIRE)
TWO TRANSFORMERS (REMOVE JUMPER WIRE)
SINGLE TRANSFORMER (USE JUMPER WIRE)
TWO TRANSFORMERS (REMOVE JUMPER WIRE)
This thermostat has the option of being used in heat pump or heat/cool systems. Switch SW1 located on the back of the thermostat’s face is used to select this option. This setting can also be checked in the Installer System Settings under Equipment Type.
Note: Thermostat reboots within 10 seconds after switch position is changed.
HOW TO ENTER THE INSTALLER SETUP MENU TO CHANGE SYSTEM SETTINGS:
The following table is the list of the settings and their details. Default settings are shown in bold. Some settings are only available to thermostats set to heat pump mode.
System setting | Description | factory default setting (bold) and setting range |
00 . Equipment type | Equipment type is set by SW1 | Heat/Cool Heat Pump |
01. Heat/Cool control setup | Used to lockout heating or cooling outputs (only available in Heat/Cool mode) | Heat and Cool Heat Only Cool Only |
02 . Equipment stages | Number of stages of equipment | Single Stage Multi Stage |
03. Auxiliary heat stages | Number of stages of auxiliary heat equipment | 1 Stage 2 Stages |
04 . Temperature scale | Set the thermostat to Fahrenheit or Celsius mode | fahrenheit Celsius |
05 . Fan control in Heating/Aux heat selection | Determines if thermostat or equipment controls fan in heating . In heat pump applications, this is also auxiliary heat selection.1 | gas or oil heat (equipment controls fan) Electric heat (thermostat controls fan) |
06. Extended fan – Heat | Extends fan operation after heat call ends | Disable Enable (90 second extension) |
07. Extended fan – Cool | Extends fan operation after cool call ends | Disable Enable (90 second extension) |
08 . Internal sensor offset | Field adjustment of internal temperature sensor | 0° : No offset applied –4°F to +4°F (–2°C to +2°C) |
09. Auto changeover | Enable or disable Auto changeover mode | Disable Enable |
10 . Remote sensor | Select if remote sensor is attached or not | No Yes |
11 . Outdoor sensor | Select if outdoor sensor is attached or not | No Yes |
12. Compressor minimum off time | Minimum off time for compressor protection | 5 minutes 1 to 5 minutes |
13 . Heating minimum off time | Minimum off time for heating | 2 minutes 1 to 5 minutes |
14 . Equipment minimum on time | Minimum on time for heating and cooling | 2 minutes 1 to 5 minutes |
15. Auto changeover time | Minimum time between heating and cooling calls | 4 minutes 1 to 5 minutes |
16 . 1st stage differential | 1st stage differential | 1°f (0.5°C) 1°F to 4°F (0.5°C to 2°C) |
17 . 2nd stage differential | 2nd stage differential | 1°f (0.5°C) 1°F to 4°F (0.5°C to 2°C) |
18 . 3rd stage differential | 3rd stage differential | 1°f (0.5°C) 1°F to 4°F (0.5°C to 2°C) |
19 . 4th stage differential | 4th stage differential | 1°f (0.5°C) 1°F to 4°F (0.5°C to 2°C) |
22 . Screen lockout | Screen lockout level. (Override lockout by holding [MENU] for 7 seconds) | Off : No lockout Partial lockout Full lockout |
1 In heat pump mode, this system setting is also the auxiliary heat setting. If utilizing a fossil fuel auxiliary heat system, set to Gas or Oil Furnace. In this setting, the heat pump will lock out before the fossil fuel auxiliary heat comes on; eliminating the need for a dual fuel kit. If utilizing electric auxiliary heat, set to Electric. In this setting, the heat pump and electric auxiliary heat are allowed to run simultaneously.
System setting | Description | factory default setting (bold) and setting range |
23 . Partial lockout type | Select lockout type (only available when screen lockout is set to partial lockout) | Allow changes to fan Mode, System Mode and Setpoints Allow changes to Fan Mode and Setpoints only Allow changes to Setpoints only |
24. Max setpoint change in lockout | Select setpoint limits (only available when screen lockout is set to partial lockout) | ± 3° f or C (from current setpoint) ±1° to 20° OFF indicates no setpoint changes |
25 . Integral factor period (P+I control) | Short period = more cycles per hour (comfort) Long period = less cycles per hour (economical) | 2 minutes 1 to 5 minutes or “OFF” for proportional control only |
26. Deadband | Auto changeover mode dead band | 3°f (2°C) 2°F to 9°F (1°C to 5°C) |
27. Progressive recovery | Enable or disable Progressive recovery | Disable Enable |
28. Low balance point | Outdoor temperature low balance point (This option is only displayed if the outdoor temperature sensor is enabled) | 20°f (–6°C) 10°F to 50°F (-12°C to 9°C) or OFF to ignore |
29 . High balance point | Outdoor temperature high balance point (This option is only displayed if the outdoor temperature sensor is enabled) | 65°f (18°C) 40°F to 65°F (3°C to 18°C) or OFF to ignore |
30 . Program format | Select weekly program format | 7-day (Mon, Tue, wed, Thu, fri, Sat, Sun) 5/1/1 (weekdays, Saturday and Sunday) 5/2 (weekdays and weekends) non-programmable |
31. Event configuration | Setting for event naming | Residential Commercial |
32. Events per day | Number of program events per day . | Selects 4 events per day Selects 2 events per day |
33. Change air filter alarm | The period for displaying the “Change Air Filter” message | Off 1, 3, 6, 12 months or “OFF” to disable |
34. Change water panel alarm | Set number of months until the first reminder is required . The following reminders will occur every 12 months for a flow through humidifier, and 3/9 months for a drainless humidifier | Off 1 to 12 months or “OFF” to disable |
35 . Humidifier type | Select humidifier type . Flow through type gives a 12 month reminder, and drainless gives a 3/9 month reminder. | flow through type humidifier (1 reminder per season) Drain-less type humidifier (2 reminders per season) |
36. Service dehumidifier alarm | The period for displaying the “Service Dehumidifier” message | Off 1 to 12 months or “OFF” to disable |
37. Service HVAC alarm | The period for displaying the “Service HVAC” message | Off 1 to 12 months or “OFF” to disable |
38. Constant backlight | Enable constant, low intensity, backlight when 24VAC is present. | Disable Enable |
39. Backlight intensity | Backlight intensity as a percentage of full on | 100 0 – 100% |
40. Daylight savings | Enable or disable auto daylight savings | OFF March (second Sunday in March to the first Sunday in November) April (first Sunday in April to the last Sunday in October) |
The system test menu is used to test a system after installation. The outputs of the thermostat can be manually activated to test their function. The instructions below show how to enter the test mode and turn outputs on and off.
HOW TO ENTER THE SYSTEM TEST MENU:
Test Number | System test |
60 | Heating equipment test |
61 | Cooling equipment test |
62 | Auxiliary equipment test (HP only) |
63 | Fan equipment test |
Test 60: Heating Equipment Test
Test 60: Heating Equipment Test | ||||||||||
button press | Equipment Type | Stages | Heat Type | w | w2 | Y | Y2 | g | O | b |
1st Up press | Heat Cool | NA | Gas | ON | ON | |||||
Electric | ON | ON | ON | |||||||
Heat Pump | NA | NA | ON | ON | ON | |||||
2nd Up press | Heat Cool | 1 | NA | ON | ON | |||||
2 | Gas | ON | ON | ON | ||||||
Electric | ON | ON | ON | ON | ||||||
Heat Pump | 1 | NA | ON | ON | ON | |||||
2 | NA | ON | ON | ON | ON |
Test 61: Cooling Equipment Test
Test 61: Cooling Equipment Test | ||||||||||
button press | Equipment Type | Stages | w | w2 | Y | Y2 | g | O | b | |
1st Up press | Heat Cool | NA | ON | ON | ON | |||||
Heat Pump | NA | ON | ON | ON | ||||||
2nd Up press | Heat Cool | 1 | ON | ON | ON | |||||
2 | ON | ON | ON | ON | ||||||
Heat Pump | 1 | ON | ON | ON | ||||||
2 | ON | ON | ON | ON |
Test 62: Auxiliary Equipment Test (HP only)
Test 62: Auxiliary Equipment Test (HP only) | ||||||||||
button press | Equipment Type | Heat Type | w | w2 | Y | Y2 | g | O | b | |
1st Up press | Heat Pump | Gas | ON | ON | ||||||
Electric | ON | ON | ON | |||||||
2nd Up press | Heat Pump | Gas | ON | ON | ON | |||||
Electric | ON | ON | ON | ON |
Test 63: Fan Equipment Test
Test 63: Fan Equipment Test | ||||||||
button press | w | w2 | Y | Y2 | g | O | b | |
1st Up press | ON |
HOME SCREEN
MAIN MENU
Make sure heating and cooling temperatures are set to acceptable ranges:
HEATING SYSTEM DOES NOT RESPOND
(“HEATING” APPEARS ON SCREEN)
(“COOLING” APPEARS ON SCREEN)
(Control Setup) is set correctly.
(Control Setup) is set correctly.
If the thermostat enters an error mode, all outputs are turned off. The thermostat attempts to recover every 10 minutes. If the error does not clear, use the reset button. This will return all settings back to factory default.
Error code | Message | Error Description |
01 | “SENSOR ERROR” | Open temperature sensor circuit |
02 | Shorted temperature sensor circuit | |
04 | “EEPROM ERROR” | Error in permanent memory |
Environment
Environment | |
Temperature | Operating: 32° to 120°F (0° to 48.9°C) Shipping: -30° to 150°F (-34.4° to 65.5°C) |
Relative humidity | Operating: 5% to 90% R .H . (non-condensing) |
Electrical
Electrical | |
Operating voltage | 24VAC (18 – 30VAC) |
Current | Maximum: 2.5A (total), 1.0A (single output) Maximum surge current: 5A |
Power supply | Dual power. Can be battery or 24VAC powered. When both the sources are available, battery will be used as back up power . |
Battery power | Battery power: AA size alkaline battery x 2 Battery life: Approximately 1 year |
Thermal
Thermal | |
Outdoor & Remote temperature sensor | Maximum distance: 300 feet |
Room temperature measurement | Display range: 32° to 99°F (0° to 40°C) |
Outdoor temperature measurement | Display range: -20° to 130°F (-30° to 55°C) |
Setpoint temperature range | Heat: 40° to 90°F (4° to 32°C) Cool: 50° to 99°F (10° to 37°C) |
P.O. Box 1467
Madison, WI 53701-1467
Phone: 800/334-6011
Fax: 608/257-4357
www.aprilairepartners.com
© 2010 Aprilaire – A division of Research Products Corporation
61000729 10.10
B2205243A
61000729A 8600 Tstat Install.indd 12
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