Salus ST880ZB User Manual

ST880ZB / Optima USA Rev. 3.9

Product Specification

1, Features

Type: 7 days programmable thermostat

For heating and cooling, heat pump and non-heat pump system

With Ecofactor communication

Equipment compatibility: Heat pump: 3H2C

Non-heat pump: 2H2C

System control: Heating, Cooling, Off, Emergency heating and Auto season changeover

Fan control: Auto and On

LCD: Segmented, positive. Blue backlight

Input: Capacitive sensing “Touch Dial”

Temperature measurement:

Relative humidity measurement:

Clock: 12/24 hours with calendar. DST and Time zone selections.

Program: 7 days programmable, 6 programs per day, individual heating and cooling setpoints.

Program holds: Temporary, Permanent, Vacation and Duration (Duration through network only)

Auto recovery Yes, user selectable.

Filter warning: Yes, user selectable.

HP Fault warning: Yes, LCD.

AUX indicator: Yes, LCD.

Key lock: Yes, software.

Memory back up: Yes, Flash or EEPROM.

Memory hold up time: 10 hours.

Power supply: Dual power. Can operate on 2 AA cells or 24VAC, or both.

Battery life: 18 months.

Communication: Ecofactor, iControl, OTA software upgrade through Zigbee gateway.

Housing design: 107 x 107 x 28.5mm.

Rohs Yes.

Internal temperature sensor, Fahrenheit or Celsius selectable.

Internal humidity sensor (internal use only, user not accessible)

Internet connectivity via gateway with iControl server and iControl smartphone apps/Webapps

Use wall mounting bracket. Thermostat can be removed from the bracket that the wires connected to.

Material: PC241R.

Texture: High glossy.

Color: Optima white.

IP30

Form No. : F-ENG-1023A Page 1 of 38

ST880ZB / Optima USA Rev. 3.9

2, Specification

Equipment compatibility

Heat pump system: 3 heating stages: Y1, Y2 and W1 (auxiliary heating)

2 cooling stages: Y1 and Y2

Emergency heating: W1

Reverse valve type O or B selectable

Emergency heating HE/HG type selectable

Heat pump fault feedback (L) indication

Non heat pump system: 2 heating stages: W1 and W2

2 cooling stages: Y1 and Y2

HE/HG selectable

Jumper for separated heating and cooling circuit

Terminals

Number of terminals: 9 + 1 (reserved for future)

Terminals for heat pump Y1, Y2, W1, G, O/B, L, Rc, C

Terminals for non heat pump Y1, Y2, W1, W2, G, Rc, Rh, C

User interface

Display: Segmented type LCD with blue backlight

Input: Capacitive type “Touch Dial”

Button: Hidden reset key

Clock and Calendar

Clock synchronization: via Internet.

Clock free run accuracy: +/-2 seconds per day .

Time display format: AM/PM / 24 hours format user selectable.

DST: Enable / Disable user selectable. Clock automatically adjusted if DST is enabled.

Time zone: -2 to +3 hours user selectable.

Calendar: Valid through 2000 to 2099

Calendar display format: MM-DD-YY. (Calendar is not displayed on home screen)

Temperature Measurement

Temperature display format: Fahrenheit or Celsius user selectable.

Temperature display range: Fahrenheit: 32°F ~ 99°F, 1°F display resolution

Celsius: 0°C ~ 40°C, 1°C display resolution

Temperature measurement accuracy: +/-0.5°C (15°C to 25°C room temperature)

+/-1.0°C (full temperature measurement range)

Calibration: Yes, via software, user adjustable.

+/-7°F in 1°F resolution.

+/-4°C in 0.5°C resolution.

Form No. : F-ENG-1023A Page 2 of 38

ST880ZB / Optima USA Rev. 3.9

Relative humidity measurement

Humidity display format: Percentage RH

(Humidity data is only for thermostat internal use. It is displayed in test mode only. Humidity information is not available to end users.)

Display / measurement range 20% ~ 95% in 1% resolution

Humidity measurement accuracy: +/-8% at 60%, 25°C

+/-10% full measurement range.

Temperature Control

Temperature setting range:

(Program, Temporary hold and Permanent Hold)

Temperature setting range:

(Vacation hold)

Switching differential (span): Stage 1:

Auto season changeover deadband: Fahrenheit: 5°F ~ 11°F, 1°F setting resolution

Temperature control accuracy: Base on NEMA test result:

Heating and cooling:

Fahrenheit: 41°F ~ 95°F, 1°F setting resolution

Celsius: 5°C ~ 35°C, 1°C setting resolution

Heating setpoint cannot be set higher than cooling in the same program.

Heating only

Fahrenheit: 32°F ~ 60°F, 1°F setting resolution

Celsius: 0°C ~ 15°C, 1°C setting resolution

Fahrenheit: 0.5°F, 1.0°F and 2.0°F user selectable.

Celsius: 0.2°C, 0.5°C and 1.0°C user selectable.

Stage 2:

Fahrenheit: 2.0°F (fixed).

Celsius: 1.0°C (fixed).

Stage 3:

Fahrenheit: 2.0°F (fixed).

Celsius: 1.0°C (fixed).

Celsius: 2.5°C ~ 6°C, 0.5°C setting resolution

Span set to minimum. Total loading 2.5A. After control is stabilized, the following should be achieved:

Differential: less than 2°F

Droop: less than +/-1°F

Control protection

Compressor short cycle protection timer: 5 ~ 10 minutes, 1 minute setting resolution.

Set through network.

Residual Cooling fan delay timer: 30 ~ 300 seconds, 30 seconds setting resolution.

Set through network.

Auto heat cut-off: When room temperature is higher than 99°F or 35°C.

Auto cool cut-off: When room temperature is lower than 40°F or 5°C.

Temperature error cut-off: When error is found in room temperature measurement.

Filter counter

Filter counter: Counts Y1 or G turn on time for up to 999 hours.

Filter change reminder: 300, 500 or 700 hours user selectable.

Indication on LCD when Filter counter reached the reminder setting.

Form No. : F-ENG-1023A Page 3 of 38

ST880ZB / Optima USA Rev. 3.9

Program

Program style: 7-day programmable

6 programs per day

Program time : Resolution: 10 minutes difference

Shared between heating and cooling

Program temperature: Resolution: 1°F or 1°C

Individual heating and cooling setpoints

Program override: 4 types:

Temporary hold

Permanent hold

Vacation hold

Duration hold (set through network only, no UI supports)

Power Supply

Power source: Dual power – Can be powered by Battery or 24VAC, or both.

(For Heat pump mode, terminal C connection is required for L signal)

Battery power: 2 AA size alkaline batteries

2 stages battery voltage monitor (low battery indication and shut off)

Low battery indication when battery is low

Longer than 18 months of normal operation without low battery indication come out

AC power: 18 ~ 30VAC at RC – C terminals

AC voltage monitor and back plate detection switch

Back up power Super cap to maintain clock and user data for at least 10 hours after both the battery and

AC power are removed.

Conditions: at 25°C and the Supercap has been fully charged up.

Memory backup

Non-volatile memory: Flash backup.

User’s data are saved in flash after they are changed.

Control switch

Type: Latching type relays

Switch rating: 2A, 30VAC

Number of switch Total 6

Heat pump L input

Logic: Assert: 15~30VAC, De-assert: 0~10VAC

Indication: “FAULT” is displayed on LCD when L is asserted.

Form No. : F-E

NG-1023A Page 4 of 38

ST880ZB / Optima USA Rev. 3.9

Environmental Ratings

Min. Typ. Max. Units

Operating Temperature 0 50 °C

Storage Temperature -10 60 °C

Operating Humidity 5 95 %RH

Voltage AC 18 24 30 VAC

Frequency 57 60 63 Hz

Environmental test

Test Conditions Pass/Fail

Hi Temperature / Hi Humidity 40°C / 90%RH 10 Day Duration No functional failures after testing

Temperature Cycling

Vibration 3G No functional failures after testing

-20 to +60°C 12 cycles 15 minutes soak at each temp extreme

No functional failures after testing

EMC

Standard Pass/Fail

EFT Power Line EN61000-4-4 4000 V

no lock-up, no reset, no lose of memory.

EFT Clamp (all outputs) EN61000-4-4 4000 V

no lock-up, no reset , no lose of memory.

Line Interruptions EN61000-4-11 No lock-up, no lose of memory, Reset OK

VCC Sag EN61000-4-11 No lock-up, no lose of memory, Reset OK

Surge test EN61000-4-11 1.0kV, No lock-up, no lose of memory, Reset OK although UL has

no this requirement in 24V products.

Static Discharge EN61000-4-2 ±8kV for contact and ±12kV for air discharge. No reset, no system

lock-up, no lose of memory; 16 KV, no damage to unit.

, no room temperature changes, no backlight activations,

p-p

, no room temperature changes, no backlight activations,

p-p

Product life

Product life: 10 years design

2 years guarantee

Condition:

100,000 relay cycle

50,000 hours LCD half life

10000 hrs backlight (50% light reduce ratio)

Agency approval

Agency approval: FCC, HA1.2

RF module characteristics

Type:

Form No. : F-EN

G-1023A Page 5 of 38

CTL357 High Power Zigbee

EE 802.15.4-compliant

ST880ZB / Optima USA Rev. 3.9

Form factor: Module Function: Communicate with Gateway and meet HA1.2 + EcoFactor 10 attribute Operating frequency 2.4GHz ISM band Channels scanned when

forming network Antenna Communication Input/Output Impedance Data Rate DSSS Chip Rate Frequency Stability Transmit Power Operating Voltage Current Consumption Effective Distance

Networking Conformity

15, 16, 21 and 22

antenna for ERT50 (SLGE5R1).

PCB Two-way communication 50Ohm 250Kbits 2Mc/s +/-40ppm 14dBm(equivalent isotropically radiated power)

2.1-3.6V 140mA Outdoor ≥300m open field and line of sight Indoor ≥ 30m ( across 4 concrete 20cm thick walls, and 1 floor up/down) Mesh Network Radio: ETSI EN300 328 V1.6 & EN300 440 class 2 EMC: ETSI EN301 489-17 V1.2.1 EMC: ETSI EN301 489-1 V1.6.1 Safety: IEC/EN60950-1

Form No. : F-EN

G-1023A Page 6 of 38

ST880ZB / Optima USA Rev. 3.9

System reset, System options and Memory backup

1. The thermostat is reset when the RESET key is pressed, or after power up from an empty Supercap.

2. There are three types of reset:

 Type 1 reset is the reset after first power up since manufactured, or reset key pressed and user touches OK

during the full screen. The hardware and all the memory are reset, including the System options. Users are requested to set the System options.

 Type 2 reset is when the RESET key is pressed. The hardware and all the memory are reset. System options,

however, are retrieved from Flash.

 Type 3 reset is when power up from an empty Supercap. The hardware is reset. All the memory is retrieved

from Flash.

3. During the reset process, the LCD will display full screen and then system information (firmware version, etc.) before going into Normal mode.

4. The following is the status after reset:

System states after reset:

System option setting mode after reset:

Operation mode: Time: Date: Room temperature: Programs: Set temperature: Program number: System: Fan: Program holds: Time format: Day light saving time: Time zone: Span: Auto season changeover deadband: Auto recovery: Room temperature offset: Temperature scale: Filter counter: Filter warning time: Compressor short cycle protection: Residual cooling fan delay: Vacation start date: Vacation end date: Vacation temperature: Low battery warning: Output status:

Type 1 Reset Type 2 Reset Type 3 Reset

Yes No. System options retrieved from Flash

Normal mode / Home screen

12:00 AM From Flash

Jan 1st, 2013 From Flash

Current room temperature

Reset to default From Flash

According to programs

Heat From Flash

Auto From Flash

Cleared From Flash, revised

12 hours From Flash

On From Flash

0 From Flash

0.5°F / 0.25°C From Flash

8.0°F / 4.5°C From Flash

Enabled From Flash

0°F / 0°C From Flash

Fahrenheit From Flash

0 hours From Flash

700 hours From Flash

5 minutes From Flash

60 seconds From Flash

Jan 1st, 2013 From Flash

41°F / 5°C From Flash

Revised

All relays turned off during reset, then updated.

Form No. : F-ENG-1023A Page 7 of 38

ST880ZB / Optima USA Rev. 3.9

Key lock: LCD backlight:

Unlocked

Off

Default programs (all 7 days)

Program Program time Heat set point Cool set point

1 2 3 4 5 6

6:00AM 68°F(20°C) 79°F (26°C)

8:00AM 61°F (16°C) 84°F (29°C)

6:00PM 68°F (20°C) 79°F (26°C)

10:00PM 61°F (16°C) 82°F (28°C)

System options

System options include:

1. Equipment type: Heat pump / Non heat pump

2. Fan control in heating: Electric / Gas or oil furnace

3. Reverse valve (for heat pump only): O / B

If Heat pump is selected for the equipment type, Fan control option and Reverse valve option will also need to set.

If Non heat pump is selected for the equipment type, only Fan control option will need to set.

System options are saved into the Flash and will not be changed by power lost or system reset. System options can be changed by calling up the System option setting mode during Type 1 reset, that is:

1. First power up after manufactured,

2. Press RESET key, and then touch OK during reset full screen.

Memory backup

1. User’s settings are saved in the Flash. They are saved whenever they are changed and user confirmed the change.

2. The clock and calendar are also saved in the Flash every 1 hour. So when start up from Type 3 reset the time and date would not be too much different from the correct one.

Form No. : F-ENG-1023A Page 8 of 38

ST880ZB / Optima USA Rev. 3.9

Outputs and Terminals

1. Outputs are relay switched. Total 6 latching type relays.

2. There are all together 10 terminals, of which 1 (“X”) is reserved for future expansion.

3. Heat pump and non heat pump share some of the terminals.

4. Heat pump system compatible to 3H2C systems: 2 stages of compressor and 1 stage of auxiliary heating. Emergency heating shared with auxiliary heating

5. Non heat pump system compatible to 2H2C systems: 2 stages of heating and 2 stages of cooling. Heating and cooling are of separated 24VAC circuits. Connect RC and RH with the supplied jumper for integrated 24VAC circuit.

6. Indication “FAULT” on LCD when L terminal is asserted in heat pump mode.

7. Rc and Rh must be put together on the PCB for the installation of the jumper.

8. Terminal X must be put at the either ends of the ternimal block as it will not be installed in the current version.

Heat pump Non heat pump

Terminal Type Functions Terminal Type Functions

L Y1 Y2

O/B

Power 24VAC power input

(Not used)

Power 24VAC common

Input Heat pump fault input (24VAC) (Not used)

Output Compressor 1

Output Compressor 2

stage

Output Auxiliary / Emergency heating

Output Reverse valve

Output Fan

Open Reserved

RC RH

Y2 W1 W2

G X

Power 24VAC, cooling power input

Power 24VAC, heating power input

Power 24VAC common

Output 1st stage cooling

Output 2nd stage cooling

Output 1

Output 2

stage heating

Output Fan

Open Reserved

Power supplies, Power monitor and management

1. The thermostat is dual power – can be powered by batteries or 24VAC, or both.

2. The thermostat monitors: 1) Battery voltage, 2) AC voltage, 3) Back plate.

3. The thermostat operates in 3 power modes: Normal power mode, Low battery power mode and Shut off mode.

4. The thermostat has a Super cap back up power.

Power supplies

Battery power

1. 2 AA size alkaline batteries.

2. When battery is the only power source, provides 18 months or above under Standard operation condition. The Standard operation condition is:

i. Default heartbeat once every 7s and attribute once every 5 minutes with Zigbee gateway;

ii. 10 remote update and query once a day (TBC).

iii. Sending 10 attribute command 288 times every day(TBC).

iv. No OTA.

AC power

1. 18 ~ 30VAC at RC – C terminals.

2. Some systems do not have C wire available so there is no AC power supply for these systems.

Form No. : F-ENG-1023A Page 9 of 38

ST880ZB / Optima USA Rev. 3.9

Power monitor and management

Battery voltage detection

1. Battery voltage is monitored periodically at least 10 times a minute. It can be skipped if the battery voltage may not be stable, say during high current operations. It can also be called whenever necessary, say after system reset so an updated battery condition is available.

2. The Battery voltage detection function should be able to detect 3 levels of battery voltage:

i. The first level denote the normal battery operation. For new batteries, this level should last for at least 18

months. This is called the Normal power mode.

ii. The second level denote the low battery operation. The thermostat functions normally except backlight is shut

off and the low battery indicator comes on. First and second levels together should last for at least 24 months. This is called the Low battery power mode.

iii. The third level denote the minimum battery voltage range that can maintain minimum CPU functions, include

time keeping and memory. All other thermostat functions stop and all relays shut off. User settings should have been properly saved in Flash. This is called the Shut off mode.

AC power monitor

1. AC power monitor includes AC voltage detection and back plate detection switch.

2. AC voltage detection is to tell the thermostat if AC power is available. If AC power is present, the thermostat will always in Normal power mode low battery indication or shut off even battery is not installed.

3. Back plate detection can be a simple detection switch. It is to tell the thermostat if it is removed from the back plate. This means two things: 1) there is no AC power, so battery is the only power source, if exists, and 2) the terminals are disconnected, have to prepare for the coming “rough” reconnection. The thermostat will do the followings upon Back plate removal:

i. Shut off all relays. This is to prevent sparking and power surge when reconnect.

ii. The thermostat operates on battery power only and so need to observe the battery voltage levels. There is

no relay control since all relays must be shut off.

and the battery condition will be ignored. i.e., If there is AC power, there will be no

Summary of power availability and power mode

Back plate

detection

Back plate is

Off

AC voltage

detection

AC present Don’t care Normal power mode

AC not present

Don’t care

Battery voltage

detection

Normal Normal power mode

Battery low Low battery power mode

Shut off Shut off mode

Normal Normal power mode, but with all relays shut off

Battery low Low battery power mode, but with all relays shut off

Shut off Shut off mode

Thermostat state

Super cap back up power

1. The Super cap back up power kicks in whenever both the AC and battery power is removed.

2. The back up power will provide a minimum of 10 hours of Shut off mode operation after it is fully charged.

LCD backlight

1. LCD backlight only works in Normal power mode.

2. In Normal power mode, Touch Dial works with the backlight. For other power modes, Touch Dial will ignore the back light..

Form No. : F-ENG-1023A Page 10 of 38

ST880ZB / Optima USA Rev. 3.9

3. Touch on the Touch Dial will turn on the LCD backlight for 10 seconds.

4. Touch Dial will accept input (except long input, see below) only when the backlight is on. i.e., if the backlight is off, touch on the Dial will only turn on the backlight. The input

5. Long press input does not require the backlight be turned on before. For example, press and hold OK 2 seconds to engage Permanent hold. The backlight will turn on when the Dial is touched, and the hold Is activated after 2 seconds.

Form No. : F-ENG-1023A Page 11 of 38

ST880ZB / Optima USA Rev. 3.9

User Interface

1. 3 main operation interfaces: The Home screen, Temperature setting screen and Menus.

2. 3 other special modes:

i. The Test mode is only used for factory testing.

ii. The Option setting mode only available during system reset.

iii. The Shut off mode is a safe mode when the battery is too low for normal operation.

The Home screen

1. The Home screen is the basic display screen.

2. Temperature control and RF only conducted in the Home screen (except during pairing and firmware update).

3. Temperature setting mode and Menus, when no key is pressed, must return to the Home screen after certain period of time.

4. Touch on the Touch Dial to enter Temperature setting screen. Touch OK to enter Main menu.

5. Touch and hold OK for 2 seconds (“Long OK”) will set the thermostat to Permanent hold. Touch and hold BACK for 2 seconds (“Long BACK”) will cancel any Holds set before and return to Program mode.

Key lock

1. Locked Touch Dial (key lock) will not response to input. The backlight is disabled too.

2. The Touch Dial can be locked by pressing and holding OK and BACK together for 2 seconds. The Key lock indicator will be displayed.

3. To unlock, press and hold OK and BACK together for 2 seconds again. The Key lock indicator will be cleared too.

Form No. : F-ENG-1023A Page 12 of 38

+ 26 hidden pages

Salus ST880ZB User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual