Manual Johnson Control T600HPP-3 (page 15 of 17) (English)

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T600HPx-3 Heat Pump Thermostats Installation Instructions 1

Applications

The T600HPN-3 non-programmable and T600HPP-3

programmable thermostats are specifically designed

for control of heat pump commercial heating and

cooling equipment.

North American Emissions Compliance

United States

This equipment has been tested and found to comply

with the limits for a Class A digital device pursuant to

Part 15 of the FCC Rules. These limits are designed to

provide reasonable protection against harmful

interference when this equipment is operated in a

commercial environment. This equipment generates,

uses, and can radiate radio frequency energy and, if

not installed and used in accordance with the

instruction manual, may cause harmful interference to

radio communications. Operation of this equipment in a

residential area is likely to cause harmful interference,

in which case the user will be required to correct the

interference at his/her own expense.

Canada

This Class (A) digital apparatus meets all the

requirements of the Canadian Interference-Causing

Equipment Regulations.

Cet appareil numérique de la Classe (A) respecte

toutes les exigences du Règlement sur le matériel

brouilleur du Canada.

Installation

Location Considerations

Locate the T600HPx-3 thermostat:

• on a partitioning wall, approximately 5 ft (1.5 m)

above the floor in a location of average

temperature

• away from direct sunlight, radiant heat, outside

walls, behind doors, air discharge grills, stairwells,

or outside doors

• away from steam or water pipes, warm air stacks,

unconditioned areas (not heated or cooled), or

sources of electrical interference

Note: Allow for vertical air circulation to the

T600HPx-3 thermostat.

To install the thermostat:

1. Use a Phillips-head screwdriver to remove the

security screw on the bottom of the thermostat

cover.

2. Pull the bottom edge of the thermostat cover and

open the thermostat as illustrated in Figure 1.

IMPORTANT: The T600HPx-3 Thermostat is

intended to provide an input to equipment under

normal operating conditions. Where failure or

malfunction of the thermostat could lead to personal

injury or property damage to the controlled

equipment or other property, additional precautions

must be designed into the control system.

Incorporate and maintain other devices such as

supervisory or alarm systems or safety or limit

controls intended to warn of or protect against failure

or malfunction of the thermostat.

Figure 1: Removing the Thermostat Cover

T600HPx-3 Heat Pump Thermostats

Installation Instructions

T600HPN-3, T600HPP-3

Part No. 24-9890-595, Rev. —

Issued September 20, 2006

T600HPx-3 Heat Pump Thermostats Installation Instructions2

3. Carefully pull the locking tabs on the right side of

the thermostat mounting base and unlock the

Printed Circuit Board (PCB). Open the PCB to the

left as illustrated in Figure 2.

4. Pull approximately 6 in. (152 mm) of wire from the

wall and insert the wire through the hole in the

thermostat mounting base.

5. Align the thermostat mounting base on the wall and

use the base as a template to mark the two

mounting hole locations.

Note: Be sure to position the thermostat mounting

base so that the arrow on the base points upward

to indicate the top of the thermostat.

6. Drill a 3/16 in. (5 mm) hole at each of the two

marked locations and tap nylon anchors (included

with the thermostat) flush to the wall surface.

7. Position the thermostat mounting base on the wall

and use the two mounting screws (included with

the thermostat) to secure the base to the surface

as illustrated in Figure 3.

Note: Be careful not to overtighten the mounting

screws.

8. Swing the PCB back to the right and carefully snap

it into the locking tabs on the thermostat mounting

base.

9. Pull the pull-tabs on each of the connectors and

remove the screw terminal blocks as illustrated in

Figure 4.

Wiring

When an existing thermostat is replaced, remove and

label the wires to identify the terminal functions. When

a T600HPx-3 thermostat is replaced, simply remove

the old screw terminal blocks and reinsert them onto

the PCB of the replacement thermostat.

Figure 2: Opening the Thermostat PCB

FIG:prntd_crct_brd

PCB

Locking

Tabs

Figure 3: Securing the Thermostat

Mounting Base to the Wall

FIG:mntng_bs

CAUTION: Risk of Electric Shock.

Disconnect the power supply before

making electrical connections to avoid

electric shock.

CAUTION: Risk of Property Damage.

Do not apply power to the system before

checking all wiring connections. Short

circuited or improperly connected wires

may result in permanent damage to the

equipment.

IMPORTANT: Make all wiring connections in

accordance with local, national, and regional

regulations. Do not exceed the electrical ratings of

the T600HPx-3 thermostat.

Figure 4: Removing the Screw Terminal Blocks

T600HPx-3 Heat Pump Thermostats Installation Instructions 3

To wire the thermostat:

1. Strip the ends of each wire a 1/4 in. (6 mm) and

connect them to the appropriate screw terminals as

indicated in Figure 5.

2. Carefully push any excess wire back into the wall.

Seal the hole in the wall with fireproof material to

prevent drafts from affecting the ambient

temperature readings.

3. Reinsert the screw terminal blocks onto the PCB.

4. Reattach the thermostat cover to the mounting

base (top side first).

Note: Use a Phillips-head screwdriver to reinstall

the security screw on the bottom of the thermostat

cover.

Figure 5: Terminal Blocks

Y1 G RC

RH W1 O/B

Aux D1 D2 RS

Scom

5 pole left top connector

3 pole right top connector

7 pole bottom connector

10 11 1

Figure 6: Wiring the T600HPx-3 Thermostats

AUX

Scom

If using the same power source

for the thermostat and heating

loads, install a jumper

across RC and RH.

Remote

Room

Sensor

Remote

Outdoor

Sensor

24 VAC

Thermostat Power

Aux

Heat

Y2 Y1

GRCC

RH W1 O/B

Aux

Fan

Comp 2

Comp 1

Rev

Valve

Isolated Contact

- Lighting

- On/Off Actuation

- Exhaust Fan

Table 1: Terminal Identification (See Figure 5.)

Number Label Function

1Y2Energizes second-stage compressor

on a call for heating or cooling.

2Y1Energizes first-stage compressor on

a call for heating or cooling.

3GEnergizes fan in accordance with

selected fan mode.

4RC24 VAC from equipment transformer

5C24 VAC (Common) from equipment

transformer

6RH24 VAC for auxiliary heating.

7W1Energizes on a call for auxiliary

heating.

8 O/B Reversing valve. Configurable to

energize a valve on a call for heating

or a call for cooling.

10 Aux Auxiliary output

11 DI1 Configurable Digital Input 1

12 DI2 Configurable Digital Input 2

13 RS Remote Room Temperature Sensor

14 Scom Sensor Common

15 OS Outdoor Air Sensor

16 MS Not Used

T600HPx-3 Heat Pump Thermostats Installation Instructions4

Setup and Adjustments

Thermostat Operation Overview

Thermostat User Interface Keys

The T600HPx-3 thermostat user interface consists of

five keys on the front cover (as illustrated in Figure 8).

The function of each key is as follows:

•Use the YES/SCROLL key to:

- confirm menu selections and to advance to the

next menu item

- stop the Status Display Menu from scrolling

and to manually scroll to the next parameter on

the menu

Note: When the thermostat is left unattended for

45 seconds, the thermostat display resumes

scrolling.

•Use the NO key to decline a parameter change and

to advance to the next menu item.

•Use the MENU key to:

- access the Main User Menu or exit the menu

- access the Installer Configuration Menu or to

exit the menu (See the Configuring the

T600HPx-3 Thermostat section.)

•Use the UP/DOWN arrow keys to change the

configuration parameters and to activate a setpoint

adjustment.

Backlit Liquid Crystal Display (LCD)

The T600HPx-3 thermostat includes a 2-line,

8-character backlit display. Low-level backlighting is

present during normal operation, and it brightens when

any user interface key is pressed. The backlight returns

to low level when the thermostat is left unattended for

45 seconds.

Light-Emitting Diodes (LEDs)

Three LEDs are included to indicate the fan status, call

for heat, or call for cooling:

•The FAN LED is on when the fan is on.

•The AUX HEAT LED is on when auxiliary heat is

•The HEAT-PUMP LED is on when the heat-pump

compressor is on.

Separate 24 VAC

Transformer

Y2 Y1

GRCC

O/B

To Auxiliary

Heat Circuit

O/B

Y1 Y2

Heat Pump Circuit Card

R4-1

R1-1 R2-1

R3-1

Note:

Use 24 VAC interface relays

(provided by the user).

Figure 7: Wiring the T600HPx-3 Thermostat for VDC Applications

Figure 8: Front Cover of Thermostat

70.0ºF

Room Temp

ES NO

Backlit, plain text

LCD is easy to read

in any condition.

Five keys on the thermostat

make operation easy and intuitive.

LEDs indicate

system activity.

T600HPx-3 Heat Pump Thermostats Installation Instructions 5

Programming Overview

There are three menus used to view, program, and

configure the T600HPx-3 thermostat:

The Status Display Menu is displayed during normal

thermostat operation. This menu continuously scrolls

through the following parameters:

• Room Temperature

• Day and Time (T600HPP-3)

• System Mode

• Occupancy Status – Occupied/Unoccupied/

Override

• Outdoor Temperature – An outdoor air temperature

sensor must be connected.

• Applicable Alarms – The backlight lights up as an

alarm condition is displayed.

Note: Press the YES/SCROLL key to temporarily stop

this menu from scrolling.

The Main User Menu is used to access and change

the basic operating parameters of the thermostat.

Access this menu by pressing the MENU key during

normal thermostat operation.

The Installer Configuration Menu is used to set up

the thermostat for application-specific operation. To

access this menu, press and hold the MENU key for

approximately 8 seconds.

Configuring the T600HPx-3 Thermostat

The T600HPx-3 thermostat comes from the factory

with default settings for all configurable parameters.

The default settings are shown in Table 2. To

reconfigure the parameters via the thermostat, follow

the steps in this section.

1. To access the Installer Configuration Menu, press

and hold the MENU key for approximately 8

seconds.

2. Once the Installer Configuration Menu begins,

press the NO key to scroll through the parameters

listed in Table 2.

3. When the desired parameter is displayed, use the

YES key to choose the desired selection option.

4. Press the YES key and then the NO key to

continue scrolling through the parameters.

To exit the Installer Configuration Menu any time, press

the MENU key, and at the exit prompt, press the YES

key. To pass over a parameter without changing it,

press the NO key.

When the thermostat is in the Installer Configuration

Menu and left unattended for approximately 8 seconds,

the thermostat reverts to the Status Display Menu.

Configuring Inputs DI1 and DI2

When DI1 and DI2 are configured for an alarm

condition, an alarm condition is displayed locally when

the input is closed. An alarm message is included on

the scrolling Status Display Menu and when the

message is displayed, the backlight momentarily

lights up.

Each input can be configured to the Selection Options

included in Table 2.

Table 2: Installer Configuration Menu (Part 1 of 5)

Parameter

Appearing

on Display

Description and Default Selection Options

DI1

Configuration of Digital Input 1.

Default: None

(None): No function is associated with an input.

(Service): A Service alarm is displayed on the thermostat when the

input is energized. This input can be tied into the air conditioning unit

control card, which provides an alarm should there be a malfunction.

(Filter): A Filter alarm is displayed. This alarm can be connected to

a differential pressure switch that monitors a filter.

(RemOVR): Temporary occupancy request via a remote input. This

override function is controlled by a manual remote occupancy

override. When enabled, this condition disables the override

capability of the thermostat.

(RemNSB): Remote Night Setback (NSB) via a time clock input, an

occupancy sensor, or from a voltage-free contact.

Contact open = Occupied; contact closed = Unoccupied.

T600HPx-3 Heat Pump Thermostats Installation Instructions6

DI2

Configuration of Digital Input 2.

Default: None

(None): No function is associated with an input.

(Service): A Service alarm is displayed on the thermostat when the

input is energized. This input can be tied into the air conditioning unit

control card, which provides an alarm should there be a malfunction.

(Filter): A Filter alarm is displayed. This alarm can be connected to

a differential pressure switch that monitors a filter.

(RemOVR): Temporary occupancy request via a remote input. This

override function is controlled by a manual remote occupancy

override. When enabled, this condition disables the override

capability of the thermostat.

(RemNSB): Remote Night Setback (NSB) via a time clock input, an

occupancy sensor, or from a voltage-free contact.

Contact open = Occupied; contact closed = Unoccupied.

Lockout Selectable Lockout Levels for

limiting end-user keypad interaction.

Default: 0

Function Lockout Level

(0) (1) (2)

Occupancy Override Access Access No Access

Permanent

Temperature

Setpoints

Access No Access No Access

Temporary

Temperature

Setpoints

Access Access No Access

System Mode Setting Access No Access No Access

Fan Mode Setting Access No Access No Access

Schedule Setting

Access No Access No Access

Clock Setting

Access Access Access

Permanent Hold

Access No Access No Access

Pwr del

Sets the delay time period at

thermostat power up, or at each

time power is removed and

reapplied, before any operation

(fan, heating, or cooling) is

authorized. Also can be used to

sequence the startup of multiple

units in one location.

Default: 10.0 sec

Range: 10.0 to 120.0 sec

Frost pr Provides a minimum heating

setpoint of 42.0°F/5.5°C to prevent

freezing in the zone controlled by

the thermostat. Forces system to

Emergency Mode.

Default: off

(on): Enabled

(off): Disabled

Heat max

Sets the Occupied and Unoccupied

maximum Heating setpoint values.

Default: 90.0°F/32.0°C

Range: 40.0°F/4.5°C to 90.0°F/32.0°C

Cool min

Sets the Occupied and Unoccupied

minimum Cooling setpoint values.

Default: 54.0°F/12.0°C

Range: 54.0°F/12.0°C to 100.0°F/37.5°C

Table 2: Installer Configuration Menu (Part 2 of 5)

Parameter

Appearing

on Display

Description and Default Selection Options

T600HPx-3 Heat Pump Thermostats Installation Instructions 7

Anticycl Anti-Short Cycle timer sets the

minimum on/off times for heating

and cooling stages.

Default: 2.0 min

Range: 0.0 to 5.0 min adjustable in 1-minute increments

Set the anti-short cycle timer to 0.0 min for equipment that already

has its own anti-short cycle timer.

Heat cph Sets the maximum number of

Heating cycles per hour.

Default: 4.0

Range: 3.0 to 8.0 cycles per hour

Cool cph Sets the maximum number of

Cooling cycles per hour.

Default: 4.0

Range: 3.0 or 4.0 cycles per hour

Deadband Sets the minimum deadband

between the heating and cooling

setpoints.

Default: 2.0F°/1.0C°

Range: 2.0F°/1.0C° to 4.0F°/2.0C° adjustable in 1.0F°/0.5C°

increments

Fan cont Determines how the fan is activated

in response to Emergency Heat

mode. Fan cont applies to W1

(auxiliary heat) and Fan Mode auto

only. Fan cont does not affect fan

operation on a call for cooling or

heating to the compressor (Y1 and

Y2).

Default: on

(off): The thermostat will not activate the fan in response to a call

for Emergency Heat. The fan is activated by the equipment fan and

limit control.

(on): Enables the thermostat to activate the fan in response to a call

for heating or cooling.

Fan del Fan delay extends fan operation

after a heating or cooling cycle has

ended.

Default off

(on): Extends fan operation by 60 seconds after a heating or cooling

cycle has ended.

(off): No extension of fan operation after a heating or cooling cycle

has ended.

The fan delay is only active when the fan is in the Auto mode.

TOccTime Sets the duration of the Temporary

Occupancy Time (when the

thermostat is in the Unoccupied

mode) when a Schedule Override

Function is enabled using either the

Main User Menu or DI1 or DI2

configured as a temporary override

remote contact (RemOVR).

Sets the effective duration of the

Temporary heating or cooling

setpoints set using the up/down

arrow keys.

default: 3.0 hrs

Range: 0.0 to 12.0 hrs adjustable in 1-hour increments

Cal RS Sets the desired room air

temperature sensor calibration

(offset). The offset can be added to

or subtracted from the actual

displayed room temperature.

Default: 0.0F°/0.0C°C

Range: -5.0F°/-2.5C° to 5.0F°/2.5C° adjustable in 1.0F°/0.5C°

increments

Cal OS Sets the desired outdoor air

temperature sensor calibration

(offset). The offset can be added to

or subtracted from the actual

displayed room temperature.

Default: 0.0F°/0.0C°

Range: -5.0F°/-2.5C° to 5.0F°2.5C° adjustable in 1.0F°/0.5C°

increments

Table 2: Installer Configuration Menu (Part 3 of 5)

Parameter

Appearing

on Display

Description and Default Selection Options

T600HPx-3 Heat Pump Thermostats Installation Instructions8

HP stage Sets the number of heat pump

compressor stages.

Default: 2.0

(1.0): One Stage

(2.0): Two Stages

Reverts the operation of a two-stage thermostat to a single-stage

thermostat when the second cooling stage is not needed.

H lock

Discontinues heating operation in

response to the outdoor air

temperature. Requires that an

outdoor air temperature sensor be

installed and connected.

Default: 120°F/49°C

Range: -15°F/-26°C to 120°F/49°C adjustable in 5F°/5C° increments

C lock

Discontinues cooling operation in

response to the outdoor air

temperature. Requires that an

outdoor air temperature sensor be

installed and connected.

Default: -40°F/-40°C

Range: -40°F/-40°C to 95°F/35°C adjustable in 5F°/5C° increments

2/4event

Sets the number of events within a

24-hour period.

Default: 2.0

(2.0): Two events (one occupied and one unoccupied) within a

24-hour period

(4.0): Four events (two occupied and two unoccupied) within a

24-hour period

Aux cont Energizes peripheral devices

(lighting equipment, exhaust fans,

and economizers).

Default: n.o.

(n.c.): Contact open = Occupied; contact closed = Unoccupied

(n.o.): Contact closed = Occupied; contact open = Unoccupied

The contact toggles with the internal Occupied/Unoccupied schedule

(or the NSB contact on one of the digital inputs, if used).

Prog rec

Provides the desired occupied

temperature either at the start of the

occupied schedule or after the

occupied schedule begins.

Note: Progressive recovery is

disabled if either DI1 or DI2

is configured as remote

NSB.

Default: off

(on): Enabled (provides the desired occupied temperature at the

start of the occupied schedule)

(off): Disabled (provides the desired occupied temperature after the

occupied schedule begins)

Hi b. p.

Sets the high balance point – the

outdoor air temperature at which the

auxiliary heat is not used.

Default: 90.0°F/32.0°C

Range: 34.0°F/1.0°C to 90.0°F/32.0°C

Above the high balance point, only the heat pump is used to

maintain the heating setpoint. If no outdoor air sensor is connected

to Terminal OS, auxiliary heat pump operation may still be used

above the high balance point.

Lo b. p.

Sets the low balance point – the

outdoor air temperature at which the

heat pump operation terminates

when the heat pump is in the

heating mode.

Default: -12.0°F/-24.0°C

Range: -40.0°F/-40°C to 30.0°F/-1.0°C

Below the low balance point, only the auxiliary heat is used to

maintain the heating setpoint. Heat pump operation may still be used

below the low balance point if no outdoor air sensor is connected to

Terminal OS.

Table 2: Installer Configuration Menu (Part 4 of 5)

Parameter

Appearing

on Display

Description and Default Selection Options

T600HPx-3 Heat Pump Thermostats Installation Instructions 9

Comf/eco Selects how the auxiliary heat is

used.

Default: comfort

(economy) – in the heating mode: If the heat pump is not able to

satisfy the heating setpoint, the auxiliary heat is energized to satisfy

the setpoint only when the temperature has dropped 2F°/1C° below

the heating setpoint.

Note: Selecting economy in the heating mode adds a deadband

between the heat pump and auxiliary heat. The actual

temperature maintained is lower than the true heating

setpoint to maximize the heat pump operation. When the

outdoor air temperature drops below the low balance point,

the deadband is eliminated.

(economy) – in the emergency heat mode: The setpoint that is

maintained is the heating setpoint.

(comfort) – in the heating mode: If the heat pump is not able to

satisfy the heating setpoint, the auxiliary heat is energized to satisfy

the setpoint.

Re valve Governs the reversing valve

operation.

Default: O

(B): Energizes the valve in heating operation (valve is normally cool)

(O): Energizes the valve in cooling operation (valve is normally heat)

Comp/aux Sets the mode of interaction

between the heat pump and the

auxiliary heat.

Default: off

(on) – in the heating mode only: If the heat pump is not able to

satisfy the heating setpoint, the auxiliary heat is energized and the

heat pump is shut off. This typically applies when the air handler

heat pump coil is installed after the auxiliary heat. There is a

2-minute delay to restart the heat pump after the auxiliary heat is

shut down.

(off) – in the heating mode only: If the heat pump is not able to

satisfy the heating setpoint, the auxiliary heat is energized at the

same time as the heat pump stage. This typically applies when the

air handler heat pump coil is installed before the auxiliary heat (all

electric systems).

1. Setting DI1 or DI2 to RemNSB disables schedules and stops the Schedule menu display. Any other setting enables

schedules and the Schedule menu. (T600HPP-3 only)

2. When adjusting the numeric value, press the UP or DOWN arrow key to change the value by single increments; press and

hold the UP or DOWN arrow key to change the numeric value in increments of ten.

3. When adjusting the temperature, press the UP or DOWN arrow key to change the value in 0.5F°/0.5C° increments; press

and hold the UP or DOWN arrow key to change the value in 5.0F°/5.0C° increments.

4. When the outdoor air sensor is not connected or it has a short, the thermostat bypasses heating lockout, cooling lockout,

high balance point, and low balance point. Emergency mode bypasses heating lockout and permits auxiliary heating

whenever a heating demand occurs.

5. T600HPP-3 only

Table 2: Installer Configuration Menu (Part 5 of 5)

Parameter

Appearing

on Display

Description and Default Selection Options

T600HPx-3 Heat Pump Thermostats Installation Instructions10

Operation

Programming/Operating the T600HPx-3

Thermostat

Once the thermostat is configured via the Installer

Configuration Menu, its operating parameters can be

programmed via the Main User Menu. Access this

menu by pressing the MENU key during normal

thermostat operation. The Main User Menu contains

the basic operating features of the thermostat.

The Main User Menu also uses Auto Help, which is

displayed automatically in the menu when there is a

pause in programming activity. To exit Auto Help,

continue with the programming selection. When the

thermostat is in the Main User Menu and is left

unattended for 45 seconds, the menu reverts to the

Status Display Menu.

SeeTable 3 to program the thermostat.

Note: Schedule Set and Clock Set are available only

on T600HPP-3 models.

Enabling Temporary Override Schedule

Note: The Override Schedule function is available in

T600HPN-3 models only when DI1 or DI2 is configured

as remote NSB.

Note: The Override Schedule prompt only appears

when in the Unoccupied (Unoccup) or Unoccupied

Hold (Unoccup hold) Mode.

The override schedule prompt only appears when the

thermostat is in the unoccupied state. This menu

selection gives the user the option of overriding the

unoccupied setpoints with the occupied setpoints for

the amount of time specified under the TOccTime

parameter. See the Configuring the T600HPx-3

Thermostat section.

Note: If DI1 or DI2 is configured to operate as a

remote override contact, this menu is disabled.

To override the unoccupied state while in the Main User

Menu:

1. Press the NO key to all prompts until the Override

Schedule prompt appears. If the thermostat is in

the unoccupied state, this is the first prompt.

2. Press the YES key to enable the temporary

override. The thermostat returns to the Status

Display Menu.

When scrolling through the Status Display Menu,

Override now appears for the schedule status

parameter.

Table 3: Programming the T600HPx-3 Thermostat

(Part 1 of 2)

Thermostat

Display

Description

Press the MENU key while in the

Status Display Menu to enter the

Main User Menu.

Overrides Unoccupied Setpoints

Only Appears if Thermostat is in

Unoccupied State

See the Enabling Temporary

Override Schedule section.

Cancels Override mode.

Sets the Temperature Setpoints

See the Entering Permanent

Temperature Setpoints section.

Selects the System Mode Default:

Automatic (auto)

See the Selecting the System Mode

section.

Selects the Fan Mode Default:

Automatic (auto) for T600HPN-3

Smart (smart) for T600HPP-3

See the Selecting the Fan Mode

section.

RoomTemp

75.0

Override

schd Y/N

Cancel

ovrd Y/N

Temperat

set? Y/N

Sys mode

set? Y/N

Fan mode

set? Y/N

Sets the Occupied and Unoccupied

Time Periods

See the Programming the Daily

Schedule – Two-Event and

Programming the Daily Schedule –

Four-Event sections.

Sets the Day and Time

See the

Setting the Day and Time

section.

Sets a Permanent Hold on the

Schedule or Resumes the Schedule

See the

Setting Schedule Hold

section.

Table 3: Programming the T600HPx-3 Thermostat

(Part 2 of 2)

Thermostat

Display

Description

Schedule

set? Y/N

Clock

set? Y/N

Schedule

hold? Y/N

T600HPx-3 Heat Pump Thermostats Installation Instructions 15

Setting the Day and Time (T600HPP-3)

Upon initial power up (or after a power loss of greater

than 6 hours), the thermostat shows a SetClock alarm

on its display. As the thermostat scrolls through the

Status Display Menu, the SetClock message causes

the backlight to light up until the clock is set.

When changing the time, press the UP/DOWN arrow

keys once to change the time in 1-minute increments;

press and hold down the keys to change the time in

30-minute increments.

To set the clock while in the Main User Menu:

1. Press the NO key to all prompts until the clock set

prompt appears on the display. Press the YES key

to enter the clock set menu. Press the YES key to

set the time or press the NO key to advance to the

day set menu.

2. Press the UP/DOWN arrow keys to adjust the time.

When the correct time is displayed, press the YES

key to store the time.

3. Press the YES key to enter the day set menu or

press the NO key to enter the clock format menu.

4. Press the UP/DOWN arrow keys to adjust the day.

When the correct day is displayed, press the YES

key to store the day.

5. Press the YES key to choose the time format or

press the NO key to access the Main User Menu

exit prompt.

6. Press the UP/DOWN arrow keys to select the

desired time format. Press the YES key to enter

the format.

7. Press the YES key to return to the Status Display

Menu or press the NO key to return to the time set

menu.

When the thermostat scrolls through the day and time,

the new day and time should show on the display and

no alarm or backlight should be present. If the day or

time is incorrect, repeat the Setting the Day and Time

procedure.

Setting Schedule Hold

The schedule hold menu is used to set a permanent

hold on the internal scheduling or resume the

schedule. The permanent hold is typically used for

non-scheduled events that extend for long periods of

time.

Note: The Override Schedule function is available in

T600HPN-3 models only if DI1 or DI2 is configured for

remote NSB.

Note: The Schedule Hold menu is also displayed if

DI1 or DI2 is configured for remote NSB.

The following selections are available in the schedule

hold menu:

• Permanent Occupied Hold (occ hold): This

selection puts the thermostat into a permanent

occupied state via the occupied setpoints.

Occupied hold appears in the Status Display Menu

when this selection is active.

• Permanent Unoccupied Hold: This selection puts

the thermostat into a permanent unoccupied state

via the unoccupied setpoints. Unoccup hold

appears in the Status Display Menu when this

selection is active.

Table 7: Four-Event Office Schedule

Event 1 Event 2 Event 3 Event 4

Occupied Unoccupied Occupied 2 Unoccupied 2

Event Cool Heat Cool Heat Cool Heat Cool Heat

72°F

(22°C)

70°F

(21°C)

80°F

(27°C)

62°F

(17°C)

72°F

(22°C)

70°F

(21°C)

80°F

(27°C)

62°F

(17°C)

Monday 7:00 A.M. 5:00 P.M.

12:00 P.M.

Tuesday 7:00 A.M. 5:00 P.M.

12:00 P.M.

Wednesday 7:00 A.M. 5:00 P.M.

12:00 P.M.

Thursday 7:00 A.M. 5:00 P.M. 7:00 P.M. 10:30 P.M.

Friday 7:00 A.M. 5:00 P.M. 7:00 P.M. 10:30 P.M.

Saturday

12:00 P.M.

Sunday

12:00 P.M.

1. Programming different events to the same time for that day cancels those events and leaves the thermostat in the

unoccupied state.

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Johnson Control T600HPP-3 Manual

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