Heat Controller 7602-443 User Manual

INSTALLATION MANUAL

7602-443 Communicating,

Programmable Thermostat

Heat Controller, Inc. • 1900 Wellworth Ave. • Jackson, MI 49203 • (517)787-2100 • www.heatcontroller.com

TABLE OF CONTENTS

Section Title Page Safety/Installation Considerations 3

1.0 User Menu Settings 4

2.0 Installer Menu Settings 6

2.1 Installer Menu Settings Access 6

2.2 Thermostat Conﬁ guration 6

3.0 System Conﬁ guration 7

3.1 Airﬂ ow Selection 7

3.2 Option Selection 7

3.3 Unit Conﬁ guration 8

3.4 Valve Conﬁ guration 8

3.5 Multi-Unit Conﬁ guration 9

4.0 Accessory Conﬁ guration 10

4.1 Air Filter 10

4.2 Humidiﬁ er 10

4.3 UV Lamp 10

4.4 Air Cleaner 10

5.0 Input Dealer Information 10

6.0 Humidity Conﬁ guration 10

7.0 Temperature Algorithm 10

8.0 Demand Reduction Conﬁ guration 1 1

9.0 Service Mode 11

9.1 Manual Operation 11

9.2 Control Diagnostics 12

9.3 Dipswitch Conﬁ guration 12

9.4 Fault History 13

9.5 Clear Fault History 14

9.6 Multi-Unit Diagnostics 14

9.7 Multi-Unit Fault Information 14

10.0 Restore Defaults 14

11.0 Revision History 16

Heat Controller, Inc. 7602-443 COMMUNICATING, PROGRAMMABLE THERMOSTAT Installation Manual

The 7602-443 Communicating, Programmable Thermostat is the perfect compliment to a Geothermal Heat Pump System and represents a signiﬁ cant advancement in thermostat communicating technology. For homeowners, the 7602443 provides highly customizable climate control features designed to maximize comfort and reduce the amount of energy consumed by the Geothermal Heat Pump System. For dealers, it represents a signiﬁ cant advancement in con- ﬁ guration, monitoring and diagnostics from the thermostat. Please read the following instructions carefully to maximize the comfort and cost-saving potential of your Geothermal Heat Pump System.

SAFETY CONSIDERATIONS

Improper wiring or installation may damage thermostat. Wiring must conform to local and national electrical codes

 WARNING! 

WARNING! power to unit. There may be more than one power disconnect. Electrical shock can cause personal injury or death.

INSTALLATION CONSIDERATIONS

The thermostat requires no batteries. The thermostat is not a power stealing device and MUST have both R and C terminals connected. See Diagram 1.

Before installing thermostat, turn off all

a time. Be careful not to allow wires to fall back into the wall.

C. As each wire is disconnected, record wire color

and terminal marking.

D. Discard or recycle old thermostat.

NOTE: Mercury is a hazardous waste and MUST be disposed of properly.

3. Separate the thermostat from base.

4. Route thermostat wires through hole in base. Level base against wall (for aesthetic value only - thermostat need not be leveled for proper operation) and mark wall through 2 mounting holes.

5. Drill two 3/16-in. mounting holes in wall where marked. (Note: Mounting holes on thermostat are designed to ﬁ t on a horizontal J-box).

6. Secure base to wall with 2 anchors and screws provided making sure all wires extend through hole in base.

7. Connect wires to proper terminal of the connector block in the thermostat.

8. Push any excess wire back into wall. Excess wire inside the thermostat case can interfere with proper air ﬂ ow across the temperature sensor. Seal hole in wall to prevent air leaks. Leaks can affect operation.

9. Install thermostat on base.

10. Turn on power to the unit.

III. WIRING DIAGRAMS

All excess wire should be pushed back into the wall as far as possible. Excess wire inside the thermostat plastic case may interfere with the air ﬂ ow across the temperature sensor.

Diagram 1: Thermostat Connections

INSTALLATION I. THERMOSTAT LOCATION

Thermostat should be mounted:

• Approximately 5 ft. (1.5m) above ﬂ oor .

• Close to or in a frequently used room, preferably on an inside partitioning wall.

• On a section of wall without pipes or duct work.

Thermostat should NOT be mounted:

• Close to a window, on an outside wall, or next to a door leading to the outside.

• Exposed to direct light and heat from a lamp, sun, ﬁ replace, or other temperature-radiating object which may cause a false reading.

• Close to or in direct airﬂ ow from supply registers.

• In areas with poor air circulation, such as behind a door or in an alcove.

II. THERMOSTAT INSTALLATION

1. Turn off all power to unit.

2. If an existing thermostat is being replaced:

A. Remove existing thermostat from wall.

B. Disconnect wires from existing thermostat, one at

ATC32U** Thermostat

7602-443

24Vac Common

24Vac Hot

Comm +

Comm -

Thermostat Connections

C 24V Common for Control Circuit R 24V Supply for Control Circuit A+ Communications (Positive) B – Communications (Negative) GND Ground OD Outdoor Temperature Sensor ID Indoor Temperature Sensor

A+

B-

GND

DXM2

Control

Gnd

A+

B-

24V

Outdoor

Sensor

(Optional)

Remote Indoor

Sensor

(Optional)

Installation Manual 7602-443 COMMUNICATING, PROGRAMMABLE THERMOSTAT Heat Controller, Inc.

1.0 User Menu Settings

1.1 OFFSETS

If you ﬁ nd that the temperature displayed on the

thermostat does not accurately represent the room temperature where the thermostat is located, this offset function compensates for the difference. The thermostat will apply an offset between what temperature the thermostat is measuring versus the temperature that is displayed.

1.1.1 TEMPERATURE OFFSET

The Temperature Offset function allows for

calibration of the temperature sensor.

Adjust the Temperature Offset settings using the

up/down arrow buttons. Press the center button to save changes.

• Indoor Temperature (default 0°F): options:

-5°F to +5°F (in 1°F increments)

• Remote Temperature (default 0°F): options:

-5°F to +5°F (in 1°F increments)

• Outdoor Temperature (default 0°F): options:

-5°F to +5°F (in 1°F increments)

1.1.2 ANTICPATOR

If you ﬁ nd that the thermostat is overshooting or

undershooting the temperature setpoint value, the Anticipator setting allows for adjustment to correct the temperature algorithm. When the Anticipator value is set to a lower number, the thermostat becomes more sensitive and when the Anticipator value is raised, the thermostat becomes less sensitive. If the thermostat is overshooting the temperature setpoint, adjust the Anticipator value up to reduce thermostat sensitivity. If the thermostat is undershooting the temperature setpoint, adjust the Anticipator value down to increase thermostat sensitivity.

Adjust the Anticipator setting using the up/down

arrow buttons. Press the center button to save changes.

• Anticipator (default 3): valid range: 1 to 9

1.1.3 DIFFERENTIAL

The Differential adjustment will vary the number of

degrees from the setpoint before a call for heating or cooling is made. Use this function if you ﬁ nd that the thermostat is starting a call too soon/late or staging equipment up/down too quickly/slowly. For example, with a 1 ˚F 1st stage differential and a heating setpoint of 70˚F, your thermostat will not call for heating until the temperature is 69˚F.

Adjust the Differential setting using the up/down

arrow buttons. Navigate between Differentials using the left/right arrow buttons. Press the center button to save changes.

• 1st Stage (default 1°F): options: 1°F to 4°F (in 1°F increments)

• 2nd Stage (default 1°F): options: 1°F to 4°F (in 1°F increments)

• Aux Heat (default 1°F): options: 1°F to 4°F (in 1°F increments)

NOTE 1: The thermostat must be conﬁ gured for

Multistage by installer to access the 2nd Stage Differential setting. The thermostat must be conﬁ gured for Auxiliary Heat by installer to access the Auxiliary Heat Differential setting.

NOTE 2: The temperature control algorithm must

be conﬁ gured for Differential control to access the Differential settings by installer.

1.1.4 HUMIDITY OFFSET

If you ﬁ nd that the Humidity level displayed on

the thermostat does not accurately represent the Humidity level of the room in which the thermostat is located, use the Humidity Offset function to calibrate the humidity sensor.

Adjust the Humidity Offset setting using the up/

down arrow buttons. Press the center button to save changes.

• Indoor Humidity (default 0%): options:

-10% to +10% (in 1% increments)

1.2 CYCLES PER HOUR

The thermostat allows the user to adjust the maximum

number of on/off cycles per hour to maintain the desired indoor temperature.

Adjust the Cycles per Hour setting using the up/

down arrow buttons. Press the center button to save changes.

• 4 (default): operation will start no sooner than 15 minutes after the previous call was initiated

• 6: operation will start no sooner than 10 minutes after the previous call was initiated (can provide tighter temperature control)

1.3 AUTO CHANGEOVER TIME

When the thermostat is conﬁ gured for AUTO mode,

the thermostat automatically selects heating or cooling mode depending on the indoor temperature. The Auto Changeover Time is the amount of time that elapses before operation switches from heating to cooling mode or from cooling to heating mode.

Adjust the Auto Changeover Time using the up/

down arrow buttons. Press the center button to save changes.

• Auto Change Over Time (default 15 minutes): options: 0 to 120 minutes (in 15 minute increments)

Heat Controller, Inc. 7602-443 COMMUNICATING, PROGRAMMABLE THERMOSTAT Installation Manual

1.4 DEMO MODE

Demo mode is designed to showcase heat pump

operation when the unit is connected to an above ground water loop with the supply air being blown directly over the water loop.

1.4.1 ENTER DEMO MODE

To enter Demo Mode, navigate to the Service

Information screen (Menu>Settings>Service Information) then press and hold the right arrow for 5 seconds

SERVICE INFORMATION

FAULT STATUS

TEMPERATURE STATUS CLEAR FAULT HISTORY SYSTEM STATUS

SELECT OPTION

1.4.2 DEMO MODE OPERATION

Control Demo Mode operation parameters from the

Demo Operation screen shown below.

The starting mode (heating or cooling) depends

on the loop temperature at the time when Demo Mode is entered. The unit will operate in heating or cooling based upon the following algorithm.

Start in Cooling Mode Start in Heating Mode

90°F

70°F

50°F

Solid lines represent heating operation. Dashed lines represent cooling operation.

1.4.3 EXITING DEMO MODE

To exit demo mode, remove power to the

thermostat.

DEMO OPERATION

OUTDOOR FAN AUTO

78% HEATING

RH 36% HUMID ON

72%

AUTO

SETPOINT HEAT 70 COOL 74

RH TEMP MODE FAN MENU

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