Aprilaire 6504 Specifications

Premium Programmable Thermostat
Safety & Installation
Instructions
Model 8570
READ AND SAVE THESE INSTRUCTIONS
DP #10006198
B2203358C
P.O. BOX 1467 • MADISON, WI 53701-1467
997-040090-3
Printed in U.S.A.
TABLE OF CONTENTS
PAGE
PAGE
PAGE
PAGE
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Diagram 4 – Boiler with AC . . . . . . . . . . . . . . . . . 12
WIRE REQUIREMENTS. . . . . . . . . . . . . . . . . . . . . . . . . 2
Diagram 5 – Radiant Floor 1st Stage Heat
with Furnace 2nd Stage Heat and AC . . . . . . . . . 13
9. OPTIONAL – INSTALL AN INDOOR
TEMPERATURE SENSOR . . . . . . . . . . . . . . . . . . 24
11. CUSTOMIZE THE
APPLICATION SETTINGS . . . . . . . . . . . . . . . . 36
10. THERMOSTAT STARTUP . . . . . . . . . . . . . . . . . 26
Programmable or Non-Programmable . . . . . . . . 36
Thermostat Set Up . . . . . . . . . . . . . . . . . . . . . . . . 27
– Heat Only, Cool Only . . . . . . . . . . . . . . . . . . . . . .27
– Number of Auxiliary Heat Stages . . . . . . . . . . .27
Differentials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
1. SELECT A MOUNTING LOCATION. . . . . . . . . . . 3
2. OPEN THE THERMOSTAT . . . . . . . . . . . . . . . . . . 4
3. MOUNT THE THERMOSTAT BASE
TO THE WALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4. SET THE CONFIGURATION DIP SWITCHES
ON THE THERMOSTAT CIRCUIT BOARD . . . . . 6
5. WIRE THE THERMOSTAT TO THE
HVAC EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . 8
Diagram 1 – Single-Stage Furnace and AC . . . . . . 9
Diagram 2 – Two-Stage Furnace and AC . . . . . . . 10
Diagram 3 – Two-Stage Roof Top Unit . . . . . . . . 11
Diagram 6 – Single-Stage Heat Pump with
Single-Stage Back Up Heat . . . . . . . . . . . . . . . . . 14
Diagram 7 – Single-Stage Heat Pump with
Two-Stage Back Up Heat . . . . . . . . . . . . . . . . . . . 15
Verify Outdoor Temperature Sensor . . . . . . . . . . . 27
Diagram 8 – Two-Stage Heat Pump . . . . . . . . . . . 16
Check Fan Operation . . . . . . . . . . . . . . . . . . . . . . . 28
6. OPTIONAL – WIRE THE EVENT
TRIGGERED OUTPUT (ETO) . . . . . . . . . . . . . . . 17
Verify AHC Connection . . . . . . . . . . . . . . . . . . . . . 28
7. OPTIONAL – INSTALL AN OUTDOOR
TEMPERATURE SENSOR . . . . . . . . . . . . . . . . . . 19
8. OPTIONAL – INSTALL AN AUTOMATIC
HUMIDIFIER CONTROL (AHC) . . . . . . . . . . . . . 22
Check Heating Operation . . . . . . . . . . . . . . . . . . . 30
Check Cooling Operation . . . . . . . . . . . . . . . . . . . 32
Check Emergency Heat Operation
(Heat Pumps Only) . . . . . . . . . . . . . . . . . . . . . . . . 34
Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Deadband . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Progressive Recovery . . . . . . . . . . . . . . . . . . . . . 39
Balance Points (Heat Pumps Only) . . . . . . . . . . . 40
Input Dealer Contact Information . . . . . . . . . . . . 41
Blower Extension for Humidity Control . . . . . . . 42
Monitors – Air Filter, Service Humidifier,
UV Lamp, Service HVAC . . . . . . . . . . . . . . . . . . . 43
SAFETY INSTRUCTIONS
Read this Installation Manual before beginning installation of the Aprilaire® 8570 Thermostat. For questions call
Research Products Corporation at (800) 334-6011.
MODEL 8570 SPECIFICATIONS
Electrical
Thermostat Voltage:
WARNING
1. 120 Volts may cause serious injury from electrical shock. Disconnect electrical power to the HVAC equipment before
starting installation. This thermostat is not a 120-volt (line voltage) device.
2. Improper installation may cause serious injury from electrical shock. This product must be installed by a qualified
heating and air conditioning contractor in accordance with NEC Standards and applicable local and state codes.
3. Mercury is toxic and may be hazardous to health. Any replaced thermostats containing mercury must be disposed of
properly. Contact local authorities for disposal information.
24-volts ± 20% AC or DC
Total Load Current:
5A
Single Output Load Current:
2A
Thermal
Operating Range:
32°F – 99°F (0 C – 37 C)
Display Accuracy:
±1°F between 60°F and 80°F, ±2°F outside this range
Control Accuracy:
±1°F
Control Range Heat:
40°F – 88°F (4 C – 30 C)
Control Range Cool:
42°F – 90°F (6 C – 32 C)
Heat/Cool Deadband:
Adjustable 2° or 5° F or C
1st Stage Differential:
Adjustable 1°F – 4°F (1°F default)
2nd Stage Differential:
Adjustable 1°F – 4°F (1°F default)
Temperature Offset:
Adjustable 1°F – 4°F
-1-
WIRE REQUIREMENTS
(1) SELECT A MOUNTING LOCATION
Figure 1 and the table show the number of wires that must be available at the thermostat in stand-alone thermostat systems (i.e. not as part
of an Aprilaire® Model 6504 Intelligent Zoned Comfort System). Figure 1 shows optional connections to both an outdoor temperature sensor
and an Aprilaire® Automatic Humidifier Control (AHC), but only one or the other can be used. All wire is standard 18-24 gauge thermostat cable.
Application
Figure 1 – Thermostat Wire
OPTIONAL –
AUTOMATIC
HUMIDIFIER
CONTROL
(AHC)
OPTIONAL –
OUTDOOR
TEMPERATURE
SENSOR
2-WIRES
HVAC
EQUIPMENT
2-WIRES
SEE
TABLE
OPTIONAL –
INDOOR
TEMPERATURE
SENSOR
2-WIRES
MODEL 8570
THERMOSTAT
When this thermostat is connected to a Model 6504 as
shown in Figure 2, only one four-wire cable need be run
from the thermostat to the Model 6504. Use standard
18-24 gauge thermostat cable.
# Wires
Diagram (Page)
Single-Stage Furnace/AC
5
1 (9)
Two-Stage Furnace/AC
7
2 (10)
Two-Stage Roof Top Unit
7
3 (11)
Boiler w/AC (2-transformer)
6
4 (12)
Radiant 1st Stage Heat,
Furnace 2nd Stage and AC
6
5 (13)
Single-Stage Heat Pump
6
6 (14)
Single-Stage Heat Pump
w/Two Stages Aux. Heat
7
7 (15)
Two-Stage Heat Pump
8
8 (16)
Figure 2 –
Model 6504
Wire
4-WIRES
-2-
MODEL 8570
THERMOSTAT
MODEL 6504
If installing the thermostat alone…
• Mount on an interior wall, in a frequently occupied space.
• Keep the thermostat 18" from an outside wall.
• Mount the thermostat approximately 5 feet above the floor.
Height requirements are different for compliance with the
Americans with Disabilities Act (ADA) – 48" maximum height
for forward reach and 54" maximum height for side reach.
• Thermostat can be mounted to a vertical junction box (j-box).
• DO NOT mount the thermostat:
– behind doors, in corners or other dead air spaces.
– in direct sunlight or near lamps, appliances or other
sources of heat.
– on an outside wall or wall exposed to an unconditioned
space (i.e. garage).
– in the flow path of a supply register, in stairways or near
outside doors.
– on a wall where concealed pipes or ductwork could
influence the sensor.
– near sources of electrical interference such as arcing
switch contacts.
If installing an indoor temperature sensor…
• Mount the thermostat where it can be readily accessed.
Note that the backlighting illuminates whenever a button
is pressed.
• Thermostat can be mounted on a vertical junction box (j-box).
• DO NOT mount the thermostat where the operating range
temperatures will be exceeded (i.e. attic or unventilated
equipment room).
• Mount the sensor in the same location as if installing a
thermostat alone.
-3-
(2) OPEN THE THERMOSTAT
(3) MOUNT THE THERMOSTAT BASE TO THE WALL
Use your hands to pull the thermostat face off of the base. Separate one side at a time. There are latches on
either side of the thermostat.
If needed, the thermostat can be pried from the base by inserting a flat-head screwdriver (see Figure 3).
CAUTION
1. Place the wire opening in the base over the wire entry
hole in the wall. Level the base (for appearance only)
and mark the screw locations. See Figure 4.
Figure 4
2. Use the supplied screws and wall anchors to mount
the thermostat to the wall. It is recommended that wall
anchors be used for installation to drywall/sheet rock.
Figure 3
Loss of internal programs
may result from static
discharge to thermostat
circuit board. Avoid
touching the circuit board
and touch a grounded
metal object before
handling the thermostat.
• Drill a 3/16" hole for wall anchors.
• Drill a 3/32" starter hole for screws only.
3. For junction box mounting, screws are field supplied.
The thermostat can be installed on a vertical j-box.
4. Seal the wire entry hole(s) with caulk, drywall putty
or insulation to prevent drafts from inside the wall
cavity from affecting thermostat performance.
90-1027
INSERT SCREWDRIVER INTO 1 OF
4 SLOTS (2 ARE ON THE TOPSIDE,
2 ARE ON THE BOTTOM SIDE)
-4-
USE THE SCREWDRIVER TO SEPARATE THE
HOUSINGS. REPEAT ON THE REMAINING 3 SLOTS.
NOTE: THE HOUSINGS WILL NOT COMPLETELY
SEPARATE. PULL THE HOUSINGS APART WITH
YOUR HANDS TO COMPLETELY SEPARATE.
CAUTION
Minimize wire entry hole size and seal the hole – drafts from inside the wall could affect temperature readings.
-5-
(4) SET THE CONFIGURATION DIP SWITCHES ON THE THERMOSTAT CIRCUIT BOARD
There are four dip switches
located on the back of the
thermostat (on the circuit
board) that must be set to
properly configure the
thermostat for operation
with the equipment it is to
control. Figure 5 shows
the default position for the
four switches.
Figure 5
ON
SINGLE
HP
ELECT
O
MULTI
HC
GAS
B
MULTI or SINGLE – When set to single, the second stage
outputs (Y2 and W2) do not energize.
• Set to SINGLE for single-stage furnace/AC applications or
single-stage compressor heat pump systems.
• Set to MULTI if the furnace or air conditioner is two-stage
or if the heat pump has a two-stage compressor.
HEAT/COOL or HEAT PUMP – When set to HP the compressor
terminal (Y1) is the first stage output for both heating and cooling.
• Set to HP when installed with heat pumps.
• Set to H/C when installed with furnace/AC systems,
roof top units or boiler/AC combination systems.
GAS or ELECT – When set to ELECT, the fan terminal (G) will
be energized on a call for heat.
• Set to ELECT when the heat source is electric
(such as strip heat).
• Set to GAS when the heat source is fossil fuel (oil, propane,
natural gas). For heat pumps, the compressor terminal(s)
will de-energize before the auxiliary heat terminal (W1) is
energized, thus acting as a fossil fuel kit.
O or B – For heat pumps only, this switch sets whether the
O/B reversing valve output is energized during a cooling call
or heating call.
• Set to O if heat pump reversing valve is to be energized
in cooling.
• Set to B if heat pump reversing valve is to be energized
in heating.
STOP!
If installing this thermostat as part of a Model 6504 Intelligent Zoned Comfort System, refer to the Model 6504
Installation Manual for wiring and checkout procedures. Continue Model 6504 installation with Step 11 (page 36).
If wiring this thermostat directly to the HVAC equipment or standard zone control panel, continue with Step 5.
90-1028
-6-
-7-
Single-Stage Furnace/AC
# Wires
Diagram (Page)
5
1 (9)
Two-Stage Furnace/AC
7
2 (10)
Two-Stage Roof Top Unit
7
3 (11)
Boiler w/AC (2-transformer)
6
4 (12)
Radiant 1st Stage Heat,
Furnace 2nd Stage and AC
6
5 (13)
Single-Stage Heat Pump
6
6 (14)
Single-Stage Heat Pump
w/Two Stages Aux. Heat
7
7 (15)
Two-Stage Heat Pump
8
W1
1ST STAGE
COOL
FAN
RELAY
Y1
G
C
24
VAC
120
VAC
R
I+
I-
L1
Application
1ST
STAGE
HEAT
L2
120 volts may cause serious injury from electrical shock. Disconnect electrical power to the furnace
and air conditioner before starting installation. This thermostat is not a 120 volt (line voltage) device.
1. Run a cable with the correct number of wires
(see table) from the thermostat to the HVAC equipment.
2. Strip 1/4" of insulation from the end of the wires to
be connected to the thermostat.
3. Strip no more insulation than is required to make a
sound electrical connection at the HVAC equipment.
4. Wire the thermostat to the HVAC equipment according
to the wiring schematic appropriate for your HVAC
equipment.
W2
W1
RH
R
RC
G
Y1
Y2
B
O
C
FURNACE
1ST
STG
COOL
THERMOSTAT
CONFIGURATION
SWITCH SETTINGS
AHC
CONNECTION
GND
ODT
IDS
C
COM
NO
NC
8 (16)
AIR CONDITIONER
6504
CONNECTION
OUTDOOR (ODT)
& INDOOR (IDS)
TEMPERATURE
SENSORS
EVENT
TRIGGERED
OUTPUT
(ETO)
Diagram 1: Single-Stage Furnace and AC
-8-
-9-
1
ELECT
O
3
2
4
MULTI
HC
GAS
B
ELECT/GAS - SET TO
ELECT FOR ELECTRIC
HEAT, SET TO GAS FOR
FOSSIL FUEL HEAT
ZB
ZA
Y1
SINGLE
HP
ON
(5) WIRE THE THERMOSTAT TO THE HVAC EQUIPMENT
WARNING
APRILAIRE MODEL
8570 THERMOSTAT
SUPPLIED JUMPER
W1
1ST STAGE
COOL
2ND STAGE
COOL
FAN
RELAY
Y1
Y2
G
C
2ND
STG
COOL
120
VAC
R
I+
I-
L1
L2
24
VAC
1ST
STG
COOL
COM
NO
NC
C
ELECT
O
3
2
4
MULTI
HC
GAS
B
1ST
STAGE
HEAT
2ND
STAGE
COOL
6504
CONNECTION
OUTDOOR (ODT)
& INDOOR (IDS)
TEMPERATURE
SENSORS
2ND
STAGE
HEAT
APRILAIRE MODEL
8570 THERMOSTAT
SUPPLIED
JUMPER
W2
W1
RH
R
RC
G
Y1
Y2
B
O
C
W2
W1
1ST
STAGE
COOL
Y1
Y2
FAN
RELAY
AHC
CONNECTION
GND
ODT
IDS
Y2
1
ELECT/GAS - SET TO
ELECT FOR ELECTRIC
HEAT, SET TO GAS FOR
FOSSIL FUEL HEAT
ZB
ZA
Y1
SINGLE
HP
TWO-STAGE ROOF TOP UNIT
(RTU)
G
THERMOSTAT
CONFIGURATION
SWITCH SETTINGS
120
VAC
I+
I-
R
AHC
CONNECTION
ZB
ZA
GND
ODT
IDS
EVENT
TRIGGERED
OUTPUT
(ETO)
1
ELECT
O
3
2
4
MULTI
HC
GAS
B
ELECT/GAS - SET TO
ELECT FOR ELECTRIC
HEAT, SET TO GAS FOR
FOSSIL FUEL HEAT
C
24
VAC
SINGLE
HP
ON
W2
THERMOSTAT
CONFIGURATION
SWITCH SETTINGS
L1
W2
W1
RH
R
RC
G
Y1
Y2
B
O
C
L2
1ST
STAGE
HEAT
2ND
STAGE
HEAT
APRILAIRE MODEL
8570 THERMOSTAT
ON
SUPPLIED JUMPER
TWO-STAGE FURNACE
COM
NO
NC
6504
CONNECTION
OUTDOOR (ODT)
& INDOOR (IDS)
TEMPERATURE
SENSORS
EVENT
TRIGGERED
OUTPUT
(ETO)
TWO-STAGE AIR CONDITIONER
Diagram 2: Two-Stage Furnace and AC
Diagram 3: Two-Stage Roof Top Unit
- 10 -
- 11 -
HEAT
RELAY
REMOVE RH PRONG
FROM SUPPLIED JUMPER
W
1ST STAGE
COOL
Y1
C
24
VAC
INDOOR AIR HANDLER
1ST
STG
COOL
AHC
CONNECTION
GND
ODT
IDS
Y1
COM
NO
NC
C
4
GAS
B
6504
CONNECTION
OUTDOOR (ODT)
& INDOOR (IDS)
TEMPERATURE
SENSORS
EVENT
TRIGGERED
OUTPUT
(ETO)
120
VAC
1ST
STAGE
HEAT
W1
1ST STAGE
COOL
FAN
RELAY
Y1
G
C
24
VAC
120
VAC
W2
W1
RH
R
RC
G
Y1
Y2
B
O
C
I+
I-
R
Y1
C
7 Y
8
O
9
MODEL 8024 24-VOLT
RELAY PACK (not supplied)
THERMOSTAT
CONFIGURATION
SWITCH SETTINGS
AHC
CONNECTION
ZB
ZA
FURNACE
1ST
STG
COOL
6
APRILAIRE MODEL
8570 THERMOSTAT
RADIANT FLOOR HEAT
AIR CONDITIONER
AIR CONDITIONER
5
Y
R
L1
3
C
24
VAC
L2
ELECT
O
2
MULTI
HC
ELECT/GAS - SET TO
ELECT FOR HOT WATER
COIL HEAT, SET TO GAS
FOR RADIANT HEAT
ZB
ZA
L1
120
VAC
I+
I-
R
1
4
SUPPLIED JUMPER
GND
ODT
IDS
COM
NO
NC
6504
CONNECTION
OUTDOOR (ODT)
& INDOOR (IDS)
TEMPERATURE
SENSORS
SINGLE
HP
1
ELECT
O
3
2
4
ON
G
SINGLE
HP
3 R
W
L1
FAN
RELAY
E/W2
HEAT
RELAY
THERMOSTAT
CONFIGURATION
SWITCH SETTINGS
L2
BOILER
2
ON
120
VAC
W2
W1
RH
R
RC
G
Y1
Y2
B
O
C
R
L1
L2
24
VAC
L2
1 W
24V COM
APRILAIRE MODEL
8570 THERMOSTAT
C
MULTI
HC
GAS
B
ELECT/GAS - SET TO
ELECT FOR ELECTRIC
FURNACE, SET TO GAS
FOR FOSSIL FUEL
FURNACE
EVENT
TRIGGERED
OUTPUT
(ETO)
Diagram 4: Boiler with AC
Diagram 5: Radiant Floor 1st Stage Heat with Furnace 2nd Stage Heat and AC
- 12 -
- 13 -
FAN
RELAY
Y1
G
C
120
VAC
R
I+
I-
L1
L2
24
VAC
1ST STAGE
COMP.
REV.
VALVE
W1
AHC
CONNECTION
Y1
GND
ODT
IDS
O
COM
NO
NC
6504
CONNECTION
OUTDOOR (ODT)
& INDOOR (IDS)
TEMPERATURE
SENSORS
EVENT
TRIGGERED
OUTPUT
(ETO)
L
SERVICE
R
C
OUTDOOR UNIT - HEAT PUMP
Diagram 6: Single-Stage
Heat Pump with Single-Stage
Back Up Heat
- 14 -
1
ELECT
O
3
2
4
MULTI
HC
GAS
B
1ST STAGE
AUX. HEAT
ELECT/GAS - SET TO ELECT FOR
ELECTRIC AUXILIARY HEAT, SET
TO GAS FOR FOSSIL FUEL (DUAL
FUEL) AUXILIARY HEAT
FAN
RELAY
Y1
G
C
24
VAC
O/B – SET TO “O” IF HEAT PUMP
REVERSING VALVE MUST BE
ENERGIZED WHEN COOLING,
SET TO “B” IF IT IS TO BE
ENERGIZED IN HEATING
AUXILIARY HEAT SET UP
1. WITH THERMOSTAT IN OFF
MODE, PRESS AND HOLD THE
UP AND DOWN BUTTONS FOR
3 SECONDS TO ENTER THE
ADVANCED SETTINGS MENU.
2. SCROLL DOWN AND
HIGHLIGHT THE “AUXILIARY
HEAT SETUP” OPTION AND
PRESS SELECT.
3. HIGHLIGHT “ONE STAGE AUX
HEAT” AND PRESS SELECT
W2
W1
RH
R
RC
G
Y1
Y2
B
O
C
W2
W1
COMPRESSOR
SINGLE/MULTI – SET TO SINGLE
FOR SINGLE STAGE HEAT PUMP
ZB
ZA
DEFROST
SINGLE
HP
2ND STAGE
AUX. HEAT
120
VAC
R
I+
I-
THERMOSTAT
CONFIGURATION
SWITCH SETTINGS
1ST STAGE
COMP.
REV.
VALVE
AHC
CONNECTION
W1
Y1
GND
ODT
IDS
O
COM
NO
NC
L
6504
CONNECTION
OUTDOOR (ODT)
& INDOOR (IDS)
TEMPERATURE
SENSORS
EVENT
TRIGGERED
OUTPUT
(ETO)
SERVICE
R
C
OUTDOOR UNIT - HEAT PUMP
Diagram 7: Single-Stage
Heat Pump with Two-Stage
Back Up Heat
- 15 -
1
ELECT
O
3
2
4
MULTI
HC
GAS
B
SINGLE/MULTI – SET TO SINGLE
FOR SINGLE STAGE HEAT PUMP
ZB
ZA
DEFROST
SINGLE
HP
ON
COMPRESSOR
THERMOSTAT
CONFIGURATION
SWITCH SETTINGS
APRILAIRE MODEL
8570 THERMOSTAT
SUPPLIED JUMPER
L1
W2
W1
RH
R
RC
G
Y1
Y2
B
O
C
W1
INDOOR UNIT - AIR HANDLER
L2
1ST STAGE
AUX. HEAT
APRILAIRE MODEL
8570 THERMOSTAT
SUPPLIED
JUMPER
ON
INDOOR UNIT - AIR HANDLER
ELECT/GAS - SET TO ELECT FOR
ELECTRIC AUXILIARY HEAT, SET
TO GAS FOR FOSSIL FUEL (DUAL
FUEL) AUXILIARY HEAT
O/B – SET TO “O” IF HEAT PUMP
REVERSING VALVE MUST BE
ENERGIZED WHEN COOLING,
SET TO “B” IF IT IS TO BE
ENERGIZED IN HEATING
AUXILIARY HEAT SET UP
1. WITH THERMOSTAT IN OFF
MODE, PRESS AND HOLD THE
UP AND DOWN BUTTONS FOR
3 SECONDS TO ENTER THE
ADVANCED SETTINGS MENU.
2. SCROLL DOWN AND
HIGHLIGHT THE “AUXILIARY
HEAT SETUP” OPTION AND
PRESS SELECT.
3. HIGHLIGHT “TWO STAGE AUX
HEAT” AND PRESS SELECT
INDOOR UNIT - AIR HANDLER
SUPPLIED JUMPER
APRILAIRE MODEL
8570 THERMOSTAT
W2
1ST STAGE
AUX. HEAT
W1
1ST STAGE COMP.
Y1
2ND STAGE COMP.
Y2
FAN
RELAY
G
W2
W1
RH
R
RC
G
Y1
Y2
B
O
C
C
120
VAC
R
I+
I-
L1
L2
24
VAC
THERMOSTAT
CONFIGURATION
SWITCH SETTINGS
AHC
CONNECTION
W1
GND
ODT
IDS
Y1
1ST STAGE
COMP.
2ND STAGE
COMP.
REV.
VALVE
COM
NO
NC
Y2
O
6504
CONNECTION
OUTDOOR (ODT)
& INDOOR (IDS)
TEMPERATURE
SENSORS
EVENT
TRIGGERED
OUTPUT
(ETO)
L
SERVICE
R
C
1
ELECT
O
3
2
4
MULTI
HC
GAS
B
SINGLE/MULTI – SET TO
MULTI FOR TWO STAGE
HEAT PUMP
ZB
ZA
DEFROST
SINGLE
HP
ON
2ND STAGE
EMER. HEAT
Diagram 8: Two-Stage Heat Pump
ELECT/GAS - SET TO
ELECT FOR ELECTRIC
AUXILIARY HEAT , SET TO
GAS FOR FOSSIL FUEL
(DUAL FUEL) AUXILIARY
HEAT
O/B – SET TO “O” IF HEAT
PUMP REVERSING VALVE
MUST BE ENERGIZED
WHEN COOLING, SET TO
“B” IF IT IS TO BE
ENERGIZED IN HEATING
(6) OPTIONAL – WIRE THE EVENT TRIGGERED OUTPUT (ETO)
Terminals NO, COM and NC are the
Normally Open, Common and Normally
Closed outputs, respectively, of a relay
that can be used to control auxiliary
equipment. When the relay is on, a
circuit is complete between NO and
COM; when the relay is off a circuit is
complete between NC and COM. The
relay is programmed to be on or off,
with each of the programming events.
Examples of where this output might
be used include:
• Turn on outdoor ventilation for
programming periods of the day
when the building is occupied and
turn it off when unoccupied.
Figure 6
USE ONLY TO
CONTROL 24-VOLT
LOADS
LOAD
2A MAX OPERATING CURRENT
3A MAX IN-RUSH CURRENT
• Have an electronic air cleaner turn
on and off only when the building is
occupied to reduce maintenance
time/cost.
OUTDOOR UNIT - HEAT PUMP
- 16 -
- 17 -
MODEL 8570 THERMOSTAT
(shown with enclosure face removed)
NC
COM
NO
ZA
ZB
C
R
RC
RH
W1
I+
IIDS
ODT
GND
W2
G
O/B
Y1
Y2
To ENABLE and program the relay:
To DISABLE the relay:
1. Make sure the thermostat is in the OFF mode.
1. Make sure the thermostat is in the OFF mode.
2. Press and hold the
and
buttons for 3 seconds. The
display will show the ADV. SETTINGS MENU.
2. Press and hold the
and
buttons for 3 seconds. The
display will show the ADV. SETTINGS MENU.
3. Scroll down through the menu items and select
PROGRAMMABLE OUTPUT.
3. Scroll down through the menu items and select
PROGRAMMABLE OUTPUT.
4. Select ENABLE. The display will then show the program
event names, and whether the output is to be ON or OFF
during that event.
4. Select DISABLE. The display will then return to the ADV.
SETTINGS MENU.
5. Use the multi-function buttons labeled and to toggle
between events and highlight the ON/OFF item to change.
Use the
and
buttons to change the highlighted item
to ON or OFF.
6. Repeatedly press until DONE is highlighted, where the
multi-function buttons are labeled CANCEL and SAVE. Press
SAVE to save the values set, or press CANCEL to return to
the PROGRAMMABLE OUTPUT menu.
- 18 -
(7) OPTIONAL – INSTALL AN APRILAIRE MODEL 8052 OUTDOOR TEMPERATURE SENSOR
Note: If an AHC is to be installed, do not wire
an outdoor temperature sensor– see Step 8.
The AHC uses its own outdoor temperature
sensor, which can be read by the thermostat.
1. Mount the outdoor temperature sensor
(see Figure 7).
• Locate on the North side of the building if
possible. East and West are acceptable
locations as long as the sensor will not be
exposed to direct sunlight.
• Mount above anticipated snow line.
• Mount at least 3 feet away from exhaust
vents and condensing units.
• Maximum wire length from sensor to
thermostat is 300 feet.
• Under a soffit or under a wall overhang
are recommended areas for mounting
the sensor.
Figure 7
NORTH, EAST
OR WEST SIDE
OF BUILDING
SENSOR WITH
BRACKET
ABOVE SNOW LINE
- 19 -
2. Run a 2-wire cable from the sensor to the thermostat.
CAUTION
Do not run the wire along side line
voltage (120 VAC) or higher lines as this can cause
erratic readings.
3. Take a resistance measurement before connecting to the
ODT and CIR GND terminals to verify the sensor is
properly installed. Measure the wires at the thermostat to
account for wire splices.
• Use an ohmmeter to measure the resistance (kΩ) of
the sensor. The resistance reading will depend on the
outdoor temperature (see table).
4. Wire the sensor to the thermostat (see Figure 8).
• Strip 1/4" of insulation from the two sensor wires.
• Connect the sensor wires to the ODT and CIR GND
terminals of the thermostat. The wiring is not polarity
sensitive, so either wire can be connected to either
thermostat terminal.
OUTDOOR TEMPERATURE (°F)
RESISTANCE (kΩ)
-30
230.6
-20
163.8
-10
117.6
0
85.4
10
62.6
20
46.3
30
34.6
40
26.1
50
19.9
60
15.3
70
11.9
80
9.4
90
7.4
100
5.9
Figure 8
90-1025
- 20 -
- 21 -
2. Run a 2-wire cable from the AHC to the thermostat.
Automatic
Humidistat
Control
3. Wire the AHC to the thermostat (see Figure 9).
• Strip 1/4" of insulation from the ends of the wires.
• Connect the I- terminal of the AHC to the I- terminal of
the thermostat.
1. Mount the AHC and its outdoor temperature sensor.
• Maximum wire length from AHC to thermostat is 300 feet.
4. You will need to power up the thermostat to verify the
connection. Refer to step 7 of THERMOSTAT START UP
on page 28.
I-
R C
24V
H
ODT
B2203201 Rev. B
Note: Set 6504 / AHC Switch
on 8570 to AHC position
I+
I-
POWER
• Connect the I+ terminal of the AHC to the I+ terminal of
the thermostat.
I+
BYPASS
• Follow the directions provided with the AHC except do
not mount the AHC temperature sensor in a fresh air
intake. The temperature sensor must be mounted
outside.
• The AHC must have constant power. DO NOT power
the AHC through furnace accessory terminals
(a Model 50 current sensing relay is not used).
POWER
Note: The AHC uses its own outdoor temperature sensor,
which is read by the thermostat. If an AHC is to be installed,
do not wire an outdoor temperature sensor to the ODT
terminal of the thermostat.
Figure 9
BYPASS
(8) OPTIONAL – INSTALL AN AUTOMATIC HUMIDIFIER CONTROL (AHC)
R C
24V
H
ODT
B2203201 Rev. B
Model 8570
Thermostat
To Humidifier
5. After completing the thermostat installation, you will also
need to verify proper operation of the AHC – see AHC
installation instructions for details on how this is done.
• DO NOT operate the AHC in Manual Mode – this will
result in the outdoor temperature shown on the
thermostat to always be 20°F.
WARNING
Improper installation may cause serious
injury from electrical shock. Do not power up humidifier
before completing the thermostat installation.
CAUTION
Do not run the wire along side line voltage
(120 VAC) or higher lines as this can cause erratic readings.
Outdoor
Temperature
Sensor
Note: AHC must be powered by
a continuous supply - do not wire
to furnace accessory terminals.
Transformer
90-1029
- 22 -
- 23 -
(9) OPTIONAL – INSTALL AN APRILAIRE MODEL 8051 FLUSH MOUNT
OR 8053 SURFACE MOUNT TEMPERATURE SENSOR
1. Mount the indoor temperature sensor.
• Locate the sensor as you would locate a thermostat.
• Maximum wire length from sensor to thermostat is
300 feet.
• Follow the installation instructions provided with
the sensor.
2. Run a 2-wire cable from the sensor to the thermostat.
Figure 10
3. Take a resistance measurement before connecting to
the IDS and CIR GND terminals to verify the sensor is
properly installed.
• Use an ohmmeter to measure the resistance (kΩ) of the
sensor. The resistance reading will depend on the indoor
temperature (see table from OUTDOOR SENSOR
installation section on page 20).
4. Wire the sensor to the thermostat (see Figure 10).
• Strip 1/4" of insulation from the two sensor wires.
• Connect the sensor wires to the IDS and CIR GND
terminals of the thermostat. The wiring is not polarity
sensitive, so either wire can be connected to either
thermostat terminal.
CAUTION
Do not run the wire along
side line voltage (120 VAC) or higher lines as
this can cause erratic readings.
90-1026
- 24 -
- 25 -
NOTE: Refer to the Owner’s Manual for
thermostat operating instructions.
(10) THERMOSTAT STARTUP – STAND ALONE APPLICATIONS
4. THERMOSTAT SET UP – SET NUMBER OF AUXILIARY
HEAT STAGES
Only for single stage heat pump systems. In the Heat
mode, control up to three stages of heat.
1. PLACE THE THERMOSTAT ON THE BASE.
1. Make sure the thermostat is in the OFF mode.
2. TURN ON POWER TO THE HVAC SYSTEM.
EQUIPMENT
STATUS
MESSAGE
CENTER
2. Press and hold the
and
buttons for 3 seconds.
The display will show the ADV. SETTINGS MENU.
3. THERMOSTAT SET UP – HEAT ONLY OR COOL ONLY
APPLICATIONS
3. Scroll down through the menu items and select
AUXILIARY HEAT SETUP.
Skip this step if the thermostat is to control both
heating and cooling.
OUTDOOR
TEMPERATURE
4. Use the
and
buttons to highlight either
ONE STAGE AUX HEAT or TWO STAGE AUX HEAT.
1. Make sure the thermostat is in the OFF mode.
SETPOINTS
2. Press and hold the
and
buttons for 3 seconds.
The display will show the ADV. SETTINGS MENU.
3. Scroll down through the menu items and select
CONTROL SET UP.
ROOM
TEMPERATURE
4. Use the
and
buttons to highlight either
HEAT ONLY or COOL ONLY.
UP/DOWN BUTTONS
MULTI-FUNCTION
BUTTONS
- 26 -
5. Press BACK to return to the ADV. SETTINGS MENU,
then EXIT to return to the Operating Display.
5. VERIFY OUTDOOR TEMPERATURE SENSOR CONNECTION
(if optional outdoor temperature sensor installed).
• If an outdoor temperature sensor has been installed and
is operational, an outdoor temperature will appear on
main display.
5. Press BACK to return to the ADV. SETTINGS MENU,
then EXIT to return to the Operating Display.
- 27 -
6. CHECK FAN OPERATION
7. VERIFY AHC CONNECTION (if optional Automatic
Humidifier Control installed).
1. Turn on the fan (set to ON).
• The thermostat G terminal will energize and the
system blower will start. The Fan Status on the display
will show “FAN ON.”
2. If an AHC has been installed, allow the fan to
operate for no less than 40 seconds. If an AHC is not
part of this installation, you can turn the fan off at any
time. A humidity value can be displayed only after at
least 40 seconds of blower run-time to ensure the
humidity reading is representative of the room air.
1. Ensure that the AHC has power (the green status light on
the AHC should be on) and make sure the AHC is
functioning properly – see AHC installation procedure for
start up and diagnostics.
Symptom
2. From the Main Screen, press the “INFO” button.
No RH display, no outdoor
temperature display
• The outdoor temperature and relative humidity will be
displayed for five seconds after which the contact
screen will be displayed.
3. Press the BACK button to return to the Main Screen.
3. Turn the fan off (set to AUTO).
• When the humidifier is operating, the message
“HUMIDIFIER ON” appears at the message center,
alternating with the time and date and any other
currently active messages.
- 28 -
TROUBLESHOOTING – AHC CONNECTION
Cause
Miswiring – Check wire colors to verify I- at AHC is connected to I- at
thermostat and I+ is connected to I+.
AHC power source – When wired to the Model 8570 thermostat, the AHC
must be wired to a continuously ON power source. Use voltmeter to verify
presence of 24VAC (nominal) at AHC.
AHC not operating correctly – check red diagnostic light on AHC.
No RH display, outdoor temperature OK
No valid reading available – run fan for at least 40 seconds.
RH display, outdoor temperature @ 20°F
AHC set for manual mode of operation. Wire an outdoor sensor to the AHC
or wire an outdoor sensor to the thermostat.
- 29 -
8. CHECK HEATING OPERATION
2. Set the thermostat to the HEAT mode.
Notes:
• To avoid the minimum on and off times during system
checkout, always start and end the check out
procedure in the OFF mode.
3. Raise the temperature setting above the room temperature to
activate the desired stages of heating. The mode display will
change from “HEAT MODE” to “HEATING”, which will flash,
when the thermostat is calling for heat. Fifteen (15) seconds
must elapse between each stage. Verify the correct outputs
are on according to the configuration settings shown below:
• Do not operate heat pumps in the heating mode at high
outdoor temperatures for extended periods of time.
1. Set the thermostat to the OFF mode.
Configuration
Settings
Outputs
Energized
Single/Multi
HP/HC
Elect/Gas
Aux. Ht. Stages
Multi
HC
Elect
Multi
HC
Gas
Single
HC
Elect
Single
HC
Gas
Multi
HP
Elect
Multi
HP
Gas
1st Stage Heat
W1
G
W1
W2
G
W1
W1
G
W1
W2
G
W1
Y1
G
Y1
Y2
G
Y1
Y2
W1
G
Y1
G
Y1
Y2
G
2nd Stage Heat
W1
W2
TROUBLESHOOTING – HEATING OPERATION
• With the O/B configuration setting in the B position (ON), the
O/B terminal will be on in the Heat mode. In the O position
(OFF), the O/B terminal will not be on in the Heat mode.
W1
W2
3rd Stage Heat
- 30 -
W1
G
Single
HP
Elect
1
Y1
G
Y1
W1
G
2
Y1
G
Y1
W1
G
Y1
W1
W2
G
Single
HP
Gas
1
Y1
G
W1
2
Y1
G
W1
W1
W2
Symptom
Cause
Thermostat does not call for heat
Minimum-off times. Change the mode to OFF first, then change the mode to
HEAT and make a call for heat.
Heating does not come on at all
RH terminal not connected – see wiring diagrams.
Heating equipment power not on.
High Balance point limit – set balance point to OFF during system checkout.
Auxiliary Heat does not come on
Number of Auxiliary Heat stages not set correctly. See Step 4 of Thermostat
Start Up (page 27).
Furnace plenum sensor keeps fan on – normal.
Fan stays on after heat call
Blower Extension for humidifier operation. Verify that the message
"HUMIDIFYING" appears at the message center, alternating with the time
and date and any other currently active messages.
Fan comes on before heat starts, or
Fan does not come on with heat
Change position of ELECT/GAS dip switch – ELECT for electric heat systems
(fan on with heat call) or to GAS for fossil fuel systems where the fan is
controlled internally by the heating equipment.
Cooling comes on instead of heat
Takes longer than 15 seconds for auxiliary
heat to come on after compressor heat.
O/B dip switch not set properly. See Step 2, page 30.
Miswiring – check wire colors at thermostat and HVAC equipment.
SINGLE/MULTI dip switch set incorrectly – set to SINGLE for single-stage
compressor systems.
- 31 -
9. CHECK COOLING OPERATION
2. Set the thermostat to the COOL mode.
Notes:
• To avoid the minimum on and off times during system
checkout, always start and end the check out
procedure in the OFF mode.
• Do not operate air conditioning at low outdoor
temperatures. Refer to equipment manufacturer
recommendations for safe operating temperatures.
1. Set the thermostat to the OFF mode.
TROUBLESHOOTING – COOLING OPERATION
• With the O/B configuration setting in the O position (OFF),
the O/B terminal will be on in the Cool mode. In the
B position (ON), the O/B terminal will not be on in the
Cool mode.
3. Lower the temperature setting below the room temperature to
activate the desired stages of cooling. The mode display will
change from “COOL MODE” to “COOLING”, which will flash,
when the thermostat is calling for cooling. Fifteen (15) seconds
must elapse between each stage. Verify the correct outputs
are on according to the configuration settings shown below:
Single/Multi
Single
Symptom
Cause
Thermostat does not call for cooling
Minimum-off times. Change the mode to OFF first, then change the mode
to COOL and make a call for cooling.
Cooling does not come on at all
Heat comes on instead of cooling
RC terminal not connected – see wiring diagrams.
Cooling equipment power not on.
O/B dip switch not set properly. See Step 2, page 32.
Miswiring – check wire colors at thermostat and HVAC equipment.
Multi
HP/HC
Configuration Settings
The same outputs come on
regardless of how these are set.
Elect/Gas
Aux. Ht. Stages
1st Stage Cool
Y1, G
Y1, G
Outputs Energized
2nd Stage Cool
Y1, Y2, G
- 32 -
- 33 -
10. CHECK EMERGENCY HEAT OPERATION (Heat Pumps Only)
2. Set the thermostat to the EMERGENCY HEAT mode.
Notes:
• With the O/B configuration setting in the B position (ON),
the O/B terminal will be on in the Emergency Heat mode. In
the O position (OFF), the O/B terminal will not be on in the
Emergency Heat mode.
• To avoid the minimum on and off times during system
checkout, always start and end the check out
procedure in the OFF mode.
3. Raise the temperature setting above the room temperature to
activate Emergency Heat. The mode display will change from
“EHEAT MODE” to “HEATING”, which will flash, when the
thermostat is calling for heat. Fifteen (15) seconds must
elapse between each stage. Verify the correct outputs are on
according to the configuration settings shown below:
1. Set the thermostat to the OFF mode.
Single/Multi
TROUBLESHOOTING – EMERGENCY HEAT OPERATION
Symptom
Cause
Thermostat does not call for heat
Minimum-off times. Change the mode to OFF first, then change the mode
to EMERGENCY HEAT and make a call for heat.
Emergency Heat does not come on at all
Fan comes on before heat starts, or
Fan does not come on with heat
RH terminal not connected – see wiring diagrams.
Heating equipment power not on.
Change position of ELECT/GAS dip switch – ELECT for electric heat systems
(fan on with heat call) or to GAS for fossil fuel systems where the fan is
controlled internally by the heating equipment.
The same outputs come on
regardless of how these are set.
HP/HC
Configuration Settings
Elect/Gas
Elect
Aux. Ht. Stages
Gas
The same outputs come on regardless of how these are set.
1st Stage Emer. Heat
W1, G
W1
2nd Stage Emer. Heat
W1, W2, G
W1, W2
Outputs Energized
- 34 -
- 35 -
(11) CUSTOMIZE THE APPLICATION SETTINGS
1. PROGRAMMABLE OR NON-PROGRAMMABLE
0-Non Programmable This setting is best when having the
temperature setting change with the
time of day is not desired. The Program
option in the menu is not available when
this setting is selected. To change the
temperature, simply use the Up and
Down arrow buttons.
This thermostat can be configured as a programmable or
non-programmable thermostat. Four choices are available:
4-Residential This setting is best for homeowners where there
are regularly scheduled, long periods of time
during any day where the house is not occupied,
such as when everyone is at school or work. In
the program, there will be four scheduled
temperature changes per day (events) labeled
Wake, Leave, Return and Sleep.
1. Make sure the thermostat is in the OFF mode.
2. Press MENU button to show the MAIN MENU.
3. Scroll down through the menu items and select SETTINGS.
2-Residential This setting is best for homeowners where there
is not long periods of time during the day when
the home is unoccupied. In the program, there
will be only two scheduled temperature changes
per day (events) labeled Day and Night.
2-Business
4. In the SETTINGS MENU, scroll down through the menu items
and select EVENTS PER DAY.
5. To cancel, press the BACK button. This will return you to the
SETTINGS MENU.
This setting is best for businesses that are
occupied during business hours and not occupied
during non-business hours. In the program, there
will be only two scheduled temperature changes
per day (events) labeled Occupied and Unoccupied.
2. DIFFERENTIALS
Determines the temperature above/below the temperature
setting at which the heating or cooling equipment will turn
on. For example, a heat temperature setting of 70°F with a
differential of 2° will result in the equipment turning on and
off to maintain the temperature between 68°F and 70°F. If the
second stage differential is also 2°, the second stage would
be used to ensure the temperature did not drop below 66°.
The default setting for the first stage and second stage
differential is 1°.
To change the differential settings:
1. Make sure the thermostat is in the OFF mode.
2. Press and hold both the ▲ and ▼ buttons for 3 seconds.
– The display will show the ADV. SETTINGS MENU.
3. Use the ▲ or ▼ button to highlight “SET DIFFERENTIAL”
and press the SELECT button.
– If the thermostat SINGLE/MULTI dip switch is set for
MULTI, two differentials will appear, if set for SINGLE,
only one will appear.
4. To cancel, press the BACK button. This will return you
to the ADV. SETTINGS MENU.
5. To change the first stage differential, press the ▲ and ▼
button to raise or lower the setting. To change the second
stage differential, press the SELECT button.
6. To finish and return to the ADV. SETTINGS MENU, press
the SELECT button after the value(s) have been set.
– For heat pumps – the auxiliary heat differential(s) are
set separately after the number of auxiliary heat stages is
selected. See Diagrams 6-8 on pages 14-16 for auxiliary
heat set up instructions.
6. To change, use the ▲ or ▼ button to scroll to the
desired setting.
7. To finish and return to the SETTINGS MENU, press the
SELECT button.
- 36 -
- 37 -
3. OFFSET
All thermostats are factory calibrated to be accurate to within
±1° of true temperature. An offset is available to allow for
agreement with field temperature measuring instruments. The
value set will be added to the temperature sensed by the
thermostat. The result will be displayed on the thermostat and
will be used as the control value.
To change the offset:
1. Make sure the thermostat is in the OFF mode.
2. Press and hold both the ▲ and ▼ buttons for 3 seconds.
– The display will show the ADV. SETTINGS MENU.
3. Use the ▲ or ▼ button to highlight “SET OFFSET” and
press the SELECT button.
4. To cancel, press the BACK button.
5. To change the offset value, press the ▲ or ▼ button to
raise or lower the setting between –4° and +4° (°F or °C).
6. To finish and return to the ADV. SETTINGS MENU, press
the SELECT button.
4. DEADBAND
This is the number of degrees (in either °F or °C) that the heat
setting must be lower than the cool setting. The thermostat will
automatically adjust the temperature setting not being changed
to maintain this difference.
1. Make sure the thermostat is in the OFF mode.
2. Press and hold both the ▲ and ▼ button for 3 seconds.
– The display will show the ADV. SETTINGS MENU.
3. Scroll down through the menu items and select SETTINGS.
4. Use the ▲ or ▼ button to highlight “DEADBAND” and press
the SELECT button.
5. PROGRESSIVE RECOVERY
Progressive Recovery causes the thermostat to bring on the
heating/cooling equipment before the programmed event start
time, in order for the temperature to be at the programmed
value by the programmed time. The feature can be turned on
or off. When turned off, the heating/cooling equipment will
not begin bringing the space temperature to the programmed
value until the start of the event.
To turn Progressive Recovery on or off:
1. Make sure the thermostat is in the OFF mode.
2. Press and hold both the ▲ and ▼ buttons for 3 seconds.
– The display will show the ADV. SETTINGS MENU.
3. Use the ▲ or ▼ button to highlight “PROGRESSIVE
RECOVERY” and press the SELECT button.
4. To cancel, press the BACK button
5. To change whether Progressive Recovery is on or off,
press the ▲ or ▼ button to highlight either ON or OFF.
6. To finish and return to the ADV. SETTINGS MENU, press
the SELECT button.
5. To cancel, press the BACK button. This will return you to the
SETTINGS MENU.
6. To change, use the ▲ or ▼ button to scroll to either 2°
or 5°.
7. To finish and return to the ADV. SETTINGS MENU, press the
SELECT button.
- 38 -
- 39 -
6. BALANCE POINTS (HEAT PUMPS ONLY)
This feature is only available when the thermostat has been
configured to operate heat pumps (see SET THE
CONFIGURATION DIP SWITCHES on page 6) and only when an
outdoor temperature is available to the thermostat. Outdoor
temperature can come from an AHC or from an outdoor
temperature sensor.
The low balance point is the outdoor temperature at or below
which the thermostat will lockout the compressor(s) – only
auxiliary heat will be used to satisfy heating demands. The high
balance point is the outdoor temperature at or above which the
thermostat will lockout the auxiliary heat – only compressor
heat will be used to satisfy heating demands. Emergency heat
operation is unaffected by the high balance point.
To change the balance points:
1. Make sure the thermostat is in the OFF mode.
2. Press and hold both the ▲ and ▼ buttons for 3 seconds.
– The display will show the ADV. SETTINGS MENU.
3. Use the ▲ or ▼ button to highlight “SET BALANCE
POINTS” and press the SELECT button.
4. To cancel, press the BACK button. This will return you to
the ADV. SETTINGS MENU.
5. To change the low balance point, press the ▲ or ▼
button to raise or lower the temperature value
(range is -10°F to 35°F and OFF).
6. To change the high balance point, press the SELECT
button, then press the ▲ or ▼ button to raise or lower the
temperature value (range is 40°F to 80°F and OFF).
7. To finish and return to the ADV. SETTINGS MENU, press
the SELECT button after the value(s) have been set.
Important time saver: If the thermostat is installed as part
of a Model 6504 Intelligent Zoned Comfort System, the
balance points only need to be changed at one thermostat.
The Model 6504 will share the new settings with all
connected thermostats.
- 40 -
7. INPUT DEALER CONTACT INFORMATION
During thermostat operation, the two multi-function buttons
are labeled INFO and MENU. When the INFO button is
pressed, the thermostat will display the humidity and
temperature sensed by the AHC (if an AHC has been
installed), then the thermostat will display any monitor
messages and dealer contact information. At installation,
the contact information is blank and only the thermostat
model number appears. You have the option of inputting this
contact information with the name and number of your
company. Three twenty (20) character lines are available for
your company name and contact info.
To change the contact information:
1. Make sure the thermostat is in the OFF mode.
2. Press and hold both the ▲ and ▼ buttons for 3 seconds.
– The display will show the ADV. SETTINGS MENU.
3. Use the ▲ or ▼ button to highlight “INPUT DEALER INFO”
and press the SELECT button. This enters Line 1.
4. To cancel, press the BACK button. This returns to the
ADV. SETTINGS MENU. You must be at the first position
when pressing the BACK button to return to the
ADV. SETTINGS MENU.
5. To go back a character, press the BACK button.
6. To enter a character, use the ▲ or ▼ buttons to scroll
through the available characters. Press the SELECT button
to enter the character.
7. To finish Line 1 and go to Line 2, repeatedly press
SELECT, filling all remaining characters with spaces,
then press SELECT again.
8. Repeat to fill Line 2 and Line 3.
9. To finish, press the SELECT button after entering the
20th character of the third line.
- 41 -
8. BLOWER EXTENSION FOR HUMIDITY CONTROL
If the heating equipment has not run long enough to allow the
humidifier to meet the humidity demand, the thermostat will
continue the blower after a heat call. One second before the
thermostat turns off the heating terminal(s), the fan terminal
will be energized thus extending blower operation. If the fan
terminal was on as part of the heat call it will remain on, if it
was not on it will be turned on. The thermostat will operate
the blower for no less than 5 minutes after the heat call and
not more than 15 minutes. This will allow the humidifier to
continue to put moisture in the air to satisfy the humidity
demand. This feature can be enabled or disabled and can only
be used when an AHC is part of the installation.
Note: To take full advantage of this feature, the humidifier
should be plumbed to hot water.
To enable blower extension:
1. Make sure the thermostat is in the OFF mode.
2. Press and hold both the ▲ and ▼ buttons for 3 seconds.
– The display will show the ADV. SETTINGS MENU.
3. Use the ▲ or ▼ button to highlight “BLOWER EXTENSION”
and press the SELECT button.
4. To cancel, press the BACK button
5. To change whether Blower Extension is enabled (on) or
disabled (off), press the ▲ or ▼ button to highlight either
ON or OFF.
6. To finish and return to the ADV. SETTINGS MENU, press
the SELECT button.
Important: When the thermostat is installed as part of a
Model 6504 Intelligent Zoned Comfort System, leave this
feature disabled (OFF). The Model 6504 performs this
function.
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9. MONITORS – AIR FILTER, SERVICE HUMIDIFIER,
UV LAMP, SERVICE HVAC
The thermostat monitors time and can display scheduled
reminders for the user to service their humidifier, change their
filter and UV lamps, and to remind the user to schedule an
HVAC system maintenance check. All monitors are strictly time
based, so setting a filter monitor to three months will result in
the change reminder being displayed in three months,
regardless of how much the HVAC system has run in that
period. All monitors can also be turned off for installations
where one or more of the components may not be installed.
When the thermostat has verified that a monitor setting has
been reached, a message is displayed on the thermostat
(at the message center location where date and time are
normally displayed) and the label for the multi-function button
normally labeled INFO changes to CALL DEALER.
To set humidifier, filter, UV and HVAC service
reminder schedules:
1. Press the MENU button.
2. Use ▲ or ▼ button to highlight SETTINGS, then press the
SELECT button. Press the BACK button to cancel.
3. Use ▲ or ▼ button to highlight MONITORS, then press
SELECT. Press BACK to cancel.
4. Use ▲ or ▼ button to highlight the monitor you wish to
set (AIR FILTER, SERVICE HUMIDIFIER, UV LAMP or
SERVICE HVAC) then press the SELECT button. Press the
BACK button to cancel.
5. Use ▲ or ▼ button to highlight the amount of time you
wish to set then press the SELECT button. Press the BACK
button to cancel.
6. Pressing the SELECT button, after setting the schedule,
takes you back to the MONITORS screen.
• To set additional reminder schedules return to step 3.
• To finish, press the BACK button three times to return to
normal operation.
To reset an active monitor:
1. Press the CALL DEALER button.
2. Press the RESET button.
3. This will reset the monitor and return you to the Main Screen.
Important: When an AHC is installed with the thermostat,
either directly or as part of a Model 6504 Intelligent Zoned
Comfort System, the service humidifier monitor will
automatically be set to AUTO. AUTO is not a choice unless an
AHC is present. Set to AUTO, the AHC will initiate “service
humidifier” based on humidifier type and run time.
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