Lutron HomeWorks QS User Manual

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HomeWorks QS Palladiom

Thermostat Conﬁguration Guide

P/N 032498h

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P/N 032498h

Table of Contents

Description.............................................................................................................................................................................4

Step 1: Identify the HVAC Equipment and Conﬁrm Device Installation .......................................................5

Identify the HVAC Equipment .............................................................................................................................................5

Conﬁrm Device Installation .................................................................................................................................................5

Programming Menu Overview .......................................................................................................................................7

Step 2: Equipment Conﬁguration Mode .................................................................................................................... 7

Step 3: Select the HVAC Controller .............................................................................................................................8

Step 4: Set the SMC55-HWQS Basic Parameters for System Compatibility ............................................9

(01b): System Type .............................................................................................................................................................11

(02b): Heat Stages .............................................................................................................................................................11

(03b): Run Auxiliary Heat (Aux/W2) With Other Heat Stages .......................................................................................... 12

(04b): Auxiliary Heat (Aux/W2) Upstage Delay .................................................................................................................12

(05b): Cool Stages .............................................................................................................................................................13

(06b): Heat Fan Control .....................................................................................................................................................13

(07b): Changeover / Revers ing Valve (O / B) Type..............................................................................................................13

(08b): Valve / Element Type ................................................................................................................................................ 14

(09b): Fan Type ...................................................................................................................................................................14

(10b): 2-Pipe Mode .............................................................................................................................................................15

(11b): Underﬂoor Heating Control ..................................................................................................................................... 16

Saving and Exiting Basic Conﬁguration ........................................................................................................................... 17

Step 5: Set the SMC55-HWQS Advanced Parameters to Modify the Functionality of the HVAC System ...18

Parameters Applicable to All types of HVAC Equipment ................................................................................................22

(01A) Function Type ...................................................................................................................................................... 22

(02A) Temperature Sensor Type ....................................................................................................................................22

(06A) Minimum Fan On Time .........................................................................................................................................22

(07A) Extended Cool Fan Time (OCFT) ...........................................................................................................................22

(08A) Extended Heat Fan Time (OHFT) ..........................................................................................................................22

(11A) Cool Fan On Delay (CFOD)....................................................................................................................................22

(12A) Heat Fan On Delay (HFOD) ...................................................................................................................................22

(18A) Standalone Temperature Operation Mode .............................................................................................................22

(19A) Standalone Temperature Fan Mode.......................................................................................................................22

(30A) Cannot Reach Setpoint Timeout ...........................................................................................................................23

(31A) Cannot Reach Setpoint Action ..............................................................................................................................23

Parameters Applicable to Conventional and Heat Pump Systems ................................................................................23

(70A) Minimum Compressor Run Time (MCRT) ..............................................................................................................23

(71A) Minimum Compressor Off Time (MCOT) ................................................................................................................ 23

(74A) Heat Stage 1-On Delta .........................................................................................................................................24

(75A) Heat Stage 1-Off Delta .........................................................................................................................................24

(76A) Heat Stage 2 (Y2/W2/Aux)-On Delta .......................................................................................................................24

(77A) Heat Stage 2-Off Delta ......................................................................................................................................... 24

(78A) Heat Stage 3 (Aux)-On Delta ................................................................................................................................24

(79A) Heat Stage 3 (Aux)-Off Delta ................................................................................................................................24

(80A) Cool Stage 1-On Delta ......................................................................................................................................... 24

(81A) Cool Stage 1-Off Delta .........................................................................................................................................24

(82A) Cool Stage 2-On Delta .........................................................................................................................................24

(83A) Cool Stage 2-Off Delta.........................................................................................................................................25

(84A) Compressor Cool Stage 2 Upstage Delay (CC2SUD) ..............................................................................................25

(85A) Compressor Heat Stage 2 Upstage Delay (CH2SUD) ..............................................................................................25

(88A) Reversing Valve Delay (RVD) .................................................................................................................................25

Continued on next page...

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Table of Contents (continued)

Parameters Applicable for Radiant Underﬂoor Heating System ....................................................................................26

Radiant Underﬂoor Heating Control Summary ............................................................................................................26

Pulse Width Modulation (PWM) Temperature Control (for relay signals only) ...................................................................26

0–10 V- Control (for 0–10 V- signal only) .....................................................................................................................26

Duty Cycle Sample Adaptation (for both relay and 0–10 V- signals) ..............................................................................26

Parameter details ...........................................................................................................................................................27

(54A) Minimum Pulse Width ..........................................................................................................................................27

(90A) Slab Maximum .................................................................................................................................................... 27

(91A) Slab Minimum .....................................................................................................................................................27

(92A) Slab Setpoint ......................................................................................................................................................27

(93A) Floor 100% Differential ........................................................................................................................................27

(94A) Floor 0% Differential ............................................................................................................................................ 27

(95A) Cycles Per Hour (CPH) .........................................................................................................................................27

Parameters Applicable for 0–10 V- Fan Coil Units ........................................................................................................27

(50A) Proportional Fan Minimum ...................................................................................................................................27

(51A) Proportional Fan Low Speed ................................................................................................................................27

(52A) Proportional Fan Medium Speed ..........................................................................................................................27

(53A) Proportional Fan High Speed ...............................................................................................................................27

(54A) Minimum Valve Percent Open ...............................................................................................................................27

(55A) Valve Fully Open Differential ................................................................................................................................. 27

(56A) Non-proportional Analog Output ..........................................................................................................................27

Parameters Applicable for 2-pipe Fan Coil Units ............................................................................................................28

(40A) Change Over to Heat for Pipe Temperature ............................................................................................................28

(41A) Change Over to Cool for Pipe Temperature ............................................................................................................28

(42A) Enable Purge Function .........................................................................................................................................28

(43A) Purge Valve On-Time ...........................................................................................................................................28

(44A) Purge Valve Off-Time ...........................................................................................................................................28

Parameters Applicable to a FCU with Multi Speed Fan ..................................................................................................28

05A) Fan High Differential .............................................................................................................................................28

(09A) Kick-Start Fan .....................................................................................................................................................28

Step 6: Veriﬁcation ...........................................................................................................................................................29

Troubleshooting .................................................................................................................................................................30

Appendix A ...........................................................................................................................................................................31

1. Heat Stage Relays .........................................................................................................................................................31

2. Cool Stage Relays .........................................................................................................................................................31

3. Control Diagrams for Turning On / Off Different Heat and Cool Stages .....................................................................32

Appendix B: Installation Worksheet ..........................................................................................................................35

Appendix C: User Interface for the Thermostat...................................................................................................39

Appendix D: Reenter Conﬁguration Menus ...........................................................................................................40

Appendix E: Determine Firmware Version (optional) .........................................................................................40

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Description

This programming guide provides information on how to conﬁgure the HomeWorks QS Palladiom Thermostat and HomeWorks QS Palladiom HVAC controller (SMC55-HWQS, SMC55-RESI). All the references made to SMC55-HWQS throughout the document will apply to SMC55-RESI as well.

The HomeWorks QS Palladiom thermostat and SMC55-HWQS are a two-piece solution offered by Lutron to control HVAC equipment. The thermostat provides the user interface and the SMC55-HWQS sends signals to control the HVAC equipment. The SMC55-HWQS must be conﬁgured correctly to control the HVAC equipment. The thermostat can also connect to third-party HVAC controllers, or be used as a Companion Thermostat, which is described in later sections.

WARNING

This guide illustrates multiple steps for conﬁguring the Palladiom thermostat and HVAC controller.

Step 1 illustrates how to identify the HVAC equipment and conﬁrm system compatibility.

Step 2 covers the equipment conﬁguration mode.

Step 3 explains the controller selection menu.

Step 4 details the basic parameters required to conﬁgure the SMC55-HWQS for compatibility.

Step 5 covers the details of the advanced parameters for the SMC55-HWQS which are used to modify the functionality of the

HVAC equipment. Advanced parameters are set to a default value and should only be changed if the system needs further conﬁguration.

After conﬁguring both the basic and the advanced parameters, refer to Step 6 to verify the basic system functionality based

on the conﬁguration of the SMC55-HWQS.

Appendix A includes control diagrams to explain the On/Off deltas for heating and cooling stages.

Appendix B provides a worksheet which should be kept and used by the installer during installation. Before conﬁguring the

SMC55-HWQS, write the necessary values for the basic and advanced parameters in the allotted space.

Appendix C gives more details about the functionality of different buttons and user interface on the thermostat.

Shock Hazard - Improper conﬁguration can cause property damage, personal injury, or death. Installation and

service must be performed by a licensed professional HVAC installer (or equivalent) or service agency.

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Step 1: Identify the HVAC Equipment and Conﬁrm Device Installation

Identify the HVAC Equipment

First, identify the type of HVAC equipment that is installed. Check the installation manual or label on the HVAC equipment.

The Palladiom Thermostat solution is compatible with most residential HVAC systems, including:

1. Conventional forced air systems using gas, electric, or oil heat as well as compressor-based, cooling-only as split systems or packaged units.

2. Fan Coil Units (FCUs)

3. Heat-pump systems

4. Hydronic or electric underﬂoor/radiant heating systems 1

5. Speciﬁc VRF/VRV systems. See the HomeWorks QS Palladiom Thermostat speciﬁcation (Lutron P/N 3691033) at www.lutron.com for further information.

Conﬁrm Device Installation

Conﬁrm the Palladiom Thermostat is installed. For hardware installation and wiring details, refer to the HomeWorks QS Thermostat Installation Guide at www.lutron.com/TechnicalDocumentLibrary/043495.pdf. If connecting a third-party HVAC

controller to the thermostat, refer to the controller’s installation guides to conﬁrm installation of the controller. Connecting the Palladiom thermostat to third-party controllers is explained in the following Lutron app notes:

Daikin® VRV Systems and Other VRF Systems

Requires one of these hardware options:

• HomeWorks QS Palladiom thermostat and CoolAutomationTM CoolPlug interface. 2 See Application Note #660 (048660) at www.lutron.com

• HomeWorks QS Palladiom thermostat with HomeWorks QS processor and CoolAutomationTM interface. See Application Note #650 (048650) at www.lutron.com

Mitsubishi® VRF Systems

Requires one of these hardware options:

• HomeWorks QS Palladiom thermostat and Mitsubishi® Procon A1M interface. 2 See Application Note #661 (048661) at www.lutron.com

• HomeWorks QS Palladiom thermostat with HomeWorks QS processor and CoolAutomationTM interface. 2 See Application Note #650 (048650) at www.lutron.com

• HomeWorks QS Palladiom thermostat with HomeWorks QS Palladiom HVAC controller and Mitsubishi® thermostat controller inter face. 2 See Application Note #585 (048585) at www.lutron.com

LG® VRF Systems

Requires one of these hardware options:

• HomeWorks QS Palladiom thermostat and LG® PDRYCB500 interface. 2 See Application Note #662 (048662) at www.lutron.com

• HomeWorks QS Palladiom thermostat with HomeWorks QS processor and CoolAutomationTM interface. 2 See Application Note #650 (048650) at www.lutron.com

• HomeWorks QS Palladiom thermostat with HomeWorks QS Palladiom HVAC controller and LG® thermostat controller interface. 2 See Application Note #627 (048627) at www.lutron.com

Underﬂoor Heating Systems with Heatmiser Interface

Requires:

• HomeWorks QS Palladiom thermostat with HomeWorks QS processor and Heatmiser interface. Integration with HomeWorks QS document.

Included with SMC55-HWQS version 7420 or newer, SMC55-RESI version 7302 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

Provided by others.

For information about additional CoolAutomation interfaces, see www.coolautomation.com

Continued on next page...

2,3

See Heatmiser HVAC

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Step 1: Identify the HVAC Equipment and Conﬁrm Device Installation

(continued)

Conﬁrm Device Installation

(continued)

If connecting the Palladiom Thermostat to the SMC55-HWQS, they must be connected over the HVAC controller communication link. Refer to Figure 1 for the wiring required to install the SMC55-HWQS with the thermostat. For hardware installation and wiring details refer to the HomeWorks QS Thermostat Installation Guide (P/N 043495) at www.lutron.com.

Figure 1: SMC55-HWQS Setup for Conﬁguration Using a Thermostat

HomeWorks QS processor

Relay Terminals

SPST(NO) 1 A 24 V~ maximum relays

Terminal Conventional Heat Pump

#5 Heat stage 1 (W1)

Heating stage1

transformer (RH)

Cooling / compressor

transformer (R

)

#8 Compressor stage1 (Y

Compressor stage2

)

Changeover heat pump valve (O/B)

Heating transformer(RH)

Cooling transformer(RC)

Compressor

)

stage 1(Y1)

Compressor stage 1(Y2)

Fan Coil Unit Radiant Floor

Hot valve (H

Heat valve transformer(RH) or Valve transformer(R)

Fan transformer (R

) Heat stage 1 (W1)

VALVE

Heat stage 1 transformer (R1)

) –

FAN

Fan high (G3) –

Fan medium (G2) –

#10 Fan (G) Fan (G) Fan low (G1) –

#11 Heat stage 2 (W

#12

Heating stage2 transformer (R

)

Auxiliary heat (AUX) Cold valve (C

Auxiliary heat transformer(R

AUX

)

Cold valve transformer (RC)

) –

VALVE

–

Common

V+

MUX

HomeWorks QS Palladiom thermostat

Gray (G) Com

White (+) MUX

Black (−) _

QS Link

Power and communication

#10

#11

#12

HomeWorks QS Palladiom HVAC

Controller

Not used

HVAC Controller Power (from HVAC system transformers)

24 V~ IEC / SELV / PELV / NECR Class 2

White (heat)

Black (common)

Green (fan)

Yellow (cool)

43G5

Red (R

) Heat transformer

Gray /Red (C) Common

Black Black Orange / White (connect to black common wire for additional HVAC controllers only. This connection will set

the Modbus address to 02)

Wire harness for 0–10Vvalves and fan controls

Blue / Red (FCU changeover sensor or radiant floor slab sensor) Blue (remote temperature sensor)

Optional signal wires

Included with SMC55-RESI version 7302 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

Included with SMC55-HWQS version 7420 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

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Programming Menu Overview

1. Equipment conﬁguration mode: Indicates if 1 or 2 HVAC equipment types are used and what equipment is connected.

2. HVAC controller selection mode: Indicates what type of HVAC controller is being used and sets the address for it (if needed).

3. Basic conﬁguration mode: Conﬁgures the HVAC controller according to the type of HVAC system.

Note: Depending on the options selected, certain programming modes may be skipped. It may be necessary to enter certain

programming modes twice if there are two equipment types. The thermostat will only display menus that are relevant to the conﬁgurations selected.

4. Advanced conﬁguration mode (Optional)

Step 2: Equipment Conﬁguration Mode

Included with thermostat version 3.0 or later

WARNING

1. Enter equipment conﬁguration mode. When a thermostat receives power, it will automatically enter equipment conﬁguration mode if equipment conﬁguration has not been previously completed.

If no HVAC controller is going to be connected directly to the thermostat, skip this section. This is known as a companion thermostat and conﬁguration will be completed by a certiﬁed Lutron dealer via the HomeWorks QS designer software.

2. Select value for equipment conﬁguration: Select the conﬁguration option which describes the HVAC equipment connected to the thermostat. Using the table below, press or to select the correct equipment conﬁguration being used and press and hold to save the conﬁguration. The thermostat will then enter HVAC controller selection mode for the ﬁrst zone.

Shock Hazard. Improper conﬁguration can cause property damage, personal injury, or death. Installation and

service must be performed by a licensed professional HVAC installer (or the equivalent) or service agency.

Figure 2: Display on Thermostat in Equipment Conﬁguration Mode

Parameter value

Set

Hold 3 seconds to save and exit conﬁguration mode.

Table 1: Options for Equipment Conﬁguration

Parameter

Value

01 1

Equipment Typ e

2 – both heating and cooling equipment connected to the thermostat

2 – only heating equipment connected to the thermostat

Description System Example

There is a single piece of equipment attached to the HVAC controller communication link.

The thermostat controls two dif ferent HVAC equipment types. Both pieces of HVAC equipment are connected to the HVAC controller communication link.

The thermostat controls two dif ferent HVAC equipment types. Only heating equipment is physically connected to the HVAC controller communication link.

EC = Equipment conﬁguration mode

Press to change parameter value

The thermostat is connected to an SMC55-HWQS which handles both heating and cooling of the HVAC zone.

The thermostat is connected to an SMC55-HWQS used for underfloor heating of the HVAC zone. There is also a Cool Automation CoolPlug interface connected to the same thermostat used to cool the space. Both pieces of equipment are in the same HVAC zone and the thermostat can be used to heat or cool the zone.

The thermostat is connected to an SMC55-HWQS used for underfloor heating of the HVAC zone. There is also 3rd party HVAC equipment connected to the HomeWorks QS processor via integration, which is used to cool the same zone. The thermostat can be used to heat or cool the zone.

2 – only cooling equipment connected to the thermostat

The thermostat controls two dif ferent HVAC equipment types. Only cooling equipment is physically connected to the HVAC controller communication link.

The thermostat is connected to a Cool Automation CoolPlug interface to handle cooling the HVAC zone. There is also 3rd party HVAC equipment connected to the HomeWorks QS processor via integration, which is used to heat the same zone. The thermostat can be used to heat or cool the zone.

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Step 3: Select the HVAC Controller

This section explains conﬁguring the thermostat for the type of controller connected to it. Conﬁguration is required when a new thermostat is added.

WARNING

Shock Hazard. Improper conﬁguration can cause property damage, personal injury, or death. Installation and

service must be performed by a licensed professional HVAC installer (or the equivalent) or service agency.

1. Enter HVAC controller selection mode. The thermostat will automatically enter HVAC controller selection mode if an HVAC

controller has not previously been selected.

Figure 3: Display on Thermostat in HVAC Controller selection mode

Parameter value

Equipment type conﬁguration (if two equipment types).

Set

Press to select current value and proceed to next parameter.

Press to go back to previous step.

CO = HVAC controller

selection mode

Parameter ID

Press to change parameter value

2. Select value for parameter ID “01”: Select the HVAC controller connected to the thermostat. Using the table below, press

or to select the correct option for the HVAC controller being used and press .

Values based on HVAC controller

Parameter ID 01: HVAC controller option

Parameter ID 02: Modbus address

SMC55-RESI

01 02 03 04

01-02*

Mitsubishi

A1M

01-31

(set by DIP

switches

1-5 )*

Cool Automation

CoolPlug

99*

PDRYCB500

01-08

(set by DIP

switches 1-4)*

3. Select value for parameter ID “02”: Select the Modbus address.* Using the table above, press or to select the desired

Modbus address and press .

* For information see instructions included with the controller.

4. Exit HVAC controller selection mode. When “End” is shown, press and hold until the backlight

ﬂashes (3seconds).

Note: “E1” will show on the display if the thermostat is not able to communicate with the HVAC controller.

See the Troubleshooting section on page 30.

Note: If a new HVAC controller is connected to the thermostat, the HVAC controller selection mode will

need to be re-entered. To re-enter the controller selection menu follow the steps below.

a. Press and hold b. For controller selection mode - Release the buttons and immediately press and hold

and until the backlight ﬂashes (3 seconds).

until the backlight stops ﬂashing and

“CO” is shown (3 seconds).

Included with HomeWorks Palladiom Thermostat version 1.10 or newer.

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Step 4: Set the SMC55-HWQS Basic Parameters for System Compatibility

This section explains the basic conﬁguration parameters for the SMC55-HWQS. Basic parameters are the critical parameters which must be conﬁgured to control the HVAC equipment. The thermostat will not begin normal operation until these parameters are conﬁgured.

WARNING

If a thermostat is connected to an SMC55-HWQS that has not yet been conﬁgured, the thermostat will automatically enter Basic Conﬁguration Mode. If it is desired to enter Basic Conﬁguration Mode manually, follow the steps below.

1. Cycle power to the thermostat. The remaining 2 steps need to be completed within 15 minutes. If not, repeat Step 1.

2. Press and hold and for 3 seconds until the button backlight is lit and the display ﬂashes.

3. Release the buttons and immediately (with in 15 seconds) press and hold for 3 seconds until the button backlight stops

ﬂashing.

The display on the thermostat will be as shown in Figure 4:

Figure 4: Display on Thermostat in Basic Conﬁguration Mode

Equipment type conﬁguration (if two equipment types).

Shock Hazard. Improper conﬁguration can cause property damage, personal injury, or death. Installation and

service must be performed by a licensed professional HVAC installer (or the equivalent) or service agency.

Set

Save current parameter value and go to next parameter

Return to previous parmeter

Increase current parameter value

Decrease current parameter value

In Figure 4, ‘01b’ represents the basic conﬁguration parameter for SMC55-HWQS. ‘00’ represents the value of this parameter and ‘bA’ indicates that this is a basic parameter.

The following table describes the buttons that are used to select a value of the basic conﬁguration parameter for conﬁguring the SMC55-HWQS.

Table 2: Buttons Used for Conﬁguring Basic Conﬁguration Parameters

Thermostat Buttons Action

Press to increase/decrease the value of the basic conﬁguration parameter being displayed on the thermostat.

Press to save the value and go to the next applicable basic conﬁguration parameter.

Press and hold to exit the ‘End’ screen

Continued on next page...

Press to go back to the previous parameter.

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Step 4: Set the SMC55-HWQS Basic Parameters for System Compatibility (continued)

Verify the wiring connections between the thermostat, the SMC55-HWQS, and HVAC equipment as shown in Figure 1 before starting to conﬁgure the SMC55-HWQS. Table 3 below lists the details of all the basic conﬁguration parameters - applicable systems, basic conﬁguration parameter index, description, default value, and the range of values for each parameter. For the HVAC system to function properly these parameters must be conﬁgured correctly.

Table 3: Basic Conﬁguration Parameters

Applicable Systems

All 01b Sys tem Ty pe

Heat Pump and Conventional

Basic Conﬁguration Parameter

02b Heat Stages

03b

04b

Name Description Default Value Range

Run Auxiliary Heat

) with

(Aux/W

other heat stages

Auxiliary Heat

) upstage

(Aux/W

delay

00: Conventional system

01: Heat pump 02: 2-Pipe FCU 03: 4-Pipe FCU 04: Underﬂoor radiant heat 05: Underﬂoor electric heat

00: None (No Heat Stage)

01: 1 Stage ( W

02: 2 Stage: 1 Compressor and 1 Auxiliar y 03: 2 Stage: 2 Compressor, No Auxiliary 04: 3 Stage: 2 Compressor and 1 Auxiliar y

00: No

01: Ye s

Skipped if no Aux/W

00: 0 minutes 01: 1 minute 02: 2 minutes 03: 5 minutes 04: 10 minutes

05: 20 minutes

06: 30 minutes 07: 1 hour 08: 2 hours 09: 4 hours 10: 8 hours 11- 24 : 11- 24 hour s Skipped if no Aux/W

)

00: Conventional system 00–05

01: 1 Stage ( W1) 00–04

01: Yes 00–01

05: 20 minutes 00 –24

05b Cool Stages

Conventional 06b Heat Fan Control

Heat Pump 07b

Fan Coil Units and Radiant Floor

Fan Coil Units

Radiant Floor 11b Floor Control Type

08b

09b Fa n Type

10b 2-pipe Mode

Change over / Reversing Valve (O/B)

Valve / Eleme nt Type

Continued on next page...

00: None (no cool stage)

01: 1 Cool stage ( Y1)

02: 2 Cool stages (Y1, Y2)

00: Equipment controls fan

01: Thermostat controls fan

00: On for cooling (O)

01: On for heating (B)

00: Relay

01: 0–10 V02: Floating point (Fan coil units only)

00: Relay (G1, G2, G3)

01: 0–10 V-

01: Heat only 02: Cool only

03: Changeover

01: Indoor air only

02: Indoor air and ﬂoor limiting 03: Floor temperature only

01: 1 Cool stage (Y1) 00–02

01: Thermostat controls fan

00–01

00: On for cooling (O)

00: Relay 00–01

00: Relay (G1, G2, G3) 00–01

03: Changeover 01–03

01: Indoor air only 01–03

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Step 4: Set the SMC55-HWQS Basic Parameters for System Compatibility (continued)

The different basic conﬁguration parameters and the values available for each of these parameters are listed below:

(01b): System Type

Use this parameter to select the HVAC system type. Refer to the HVAC equipment manual or label to identify the type of HVAC equipment. The different options available for this parameter are listed in the table below:

Table 4: Values for Different Types of HVAC Equipment

Available Options Default Value

00: Conventional

01: Heat pump 02: 2-pipe FCU 03: 4-pipe FCU 04: Hydronic underﬂoor heating 05: Electric underﬂoor heating

(02b): Heat Stages

Applicable systems: Conventional and Heat Pump.

Use this parameter to set the number of supported heat stages. This parameter will be skipped if you select an option anything other than ‘00: Conventional’ or ‘01: Heat Pump’ for the previous parameter (01b). Refer to the HVAC equipment installation manual or label for the number of supported heat stages. The different options available for this parameter are listed in the table below:

00: Conventional

Table 5: Values for Different Heat Stages Based on System Type

System type (01b) Values for heat Stages (02b) Default Value

00: Conventional

01: Heat pump

00: No heat stage

01: 1 heat stage ( W

02: 1 primary source and 1 auxiliary source (W2)

00: No heat stage 01: 1 stage (W

02: 2 stage (1 compressor and 1 auxiliary)

03: 2 stage (2 compressors and no auxiliary) 04: 3 stage (2 compressors and 1 auxiliary

)

01: 1 heat stage ( W1)

02: 2 stage (1 compressor and 1 auxiliary)

Continued on next page...

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Step 4: Set the SMC55-HWQS Basic Parameters for System Compatibility (continued)

(03b): Run Auxiliary Heat (Aux / W2) With Other Heat Stages 1

Applicable Systems: Conventional and Heat Pump only if auxiliary heat stage is supported by the system.

Use this parameter to select whether or not the auxiliary heating stage can be allowed to run along with the other heat stages. This parameter will be skipped if you select an option anything other than ‘02: 2 stages’ (1 Compressor and 1 Auxiliary/1 Primary source and 1 Auxiliary source [W2]) or ‘04: 3 stage’ (2 Compressor and 1 Auxiliary) for the previous parameter (02b).

Note for Heat Pump: If auxiliary heat stage runs on gas/oil then it is recommended to choose a value 00: Do not run auxiliary with other heat stages. Refer to the HVAC equipment manual to determine which value to select.

The different options available for this parameter are listed in the table below:

Table 6: Values for Running Auxiliary Heat With Other Heat Stages

Run Aux/W2 With Other Heat Stages (03b) Default Value of 03b

00: do not run auxiliary with other heat stages

01: Run auxiliary with other heat stages

(04b): Auxiliary Heat (Aux/W2) Upstage Delay 1

01: Run auxiliary with other heat stages

Applicable systems: Conventional and Heat Pump only if an auxiliary heat stage is supported.

Use this parameter to select the delay between starting the ﬁrst heat stage and starting the auxiliary heating stage. This parameter will be skipped if you select a system without auxiliary heat

The different options available for this parameter are listed in the table below:

Table 7: Values for Upstage Auxiliary Delay

Auxiliary Heat (Aux/W2) Upstage Delay (04b)

00: 0 minutes 01: 1 minute 02: 2 minutes 03: 5 minutes 04: 10 minutes

05: 20 minutes

06: 30 minutes 07: 1 hour 08: 2 hours 09: 4 hours 10: 8 hours 11- 24 : 11- 24 hour s

Default Value of 04b

05: 20 minutes

Included with SMC55-HWQS version 7420 or newer, SMC55-RESI version 7302 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

Continued on next page...

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Step 4: Set the SMC55-HWQS Basic Parameters for System Compatibility (continued)

(05b): Cool Stages

Applicable Systems: Conventional and Heat Pump.

Use this parameter to select the number of cool stages. This parameter will be skipped in the menu if you select any option other than ‘00: Conventional’ or ‘01: Heat Pump’ for the previous parameter (01b). Refer to your HVAC equipment installation manual or label for the number of supported cool stages. The different options available for this parameter are listed in the table below:

Table 8: Values for Cooling Stages

Values for Cooling Stages in 05b

00: None

01: 1 stage

02: 2 stage

Refer to Table 21 in Appendix A for the details about the different relays that get energized in the different cool stages for Heat Pump and Conventional systems.

(06b): Heat Fan Control

Applicable System: Conventional systems with at least one heat stage.

Default Value

01: 1 stage

Use this parameter to specify if the SMC55-HWQS should turn on the fan when turning on the heat. For some HVAC system types, a control signal for the fan is not needed from the SMC55-HWQS because the equipment automatically turns the fan on when there is a call for heat. In such cases ensure that AUTO is enabled in the available Fan Modes in the HomeWorks QS designer software.

This parameter will be skipped and will default to have the fan turn on with the heating if you select a system type that is not conventional or has no heating stages. Refer to your HVAC equipment manual and HVAC equipment label to identify the type of conventional system. The different options available for this parameter are listed in the table below:

Table 9: Values for Heat Fan Type

Values for 07b Default Value

00: Equipment controls the fan relay

01: Thermostat controls the fan relay

(07b): Changeover/Reversing Valve (O/B) Type 1

Applicable System: Heat Pump.

Use this parameter to select the type of reversing valve: energize for heating or energize for cooling. This parameter will be skipped in the menu if you select any option other than ‘01: Heat Pump’ for the previous parameter (01b). Refer to your HVAC equipment manual to identify the type of reversing valve (O/B). The different options available for this parameter are listed in the table below:

Table 10: Values for Different Types of Reversing Valves

Changeover/Reversing Valve (O/B) Type (07b)

00: Energize for cooling (O)

01: Energize for heating (B)

Default Value

00: Energize for cooling (O)

Included with SMC55-HWQS version 7420 or newer, SMC55-RESI version 7302 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

Continued on next page...

Page 14

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Step 4: Set the SMC55-HWQS Basic Parameters for System Compatibility (continued)

(08b): Valve / Element Type

Applicable Systems: Fan Coil Units and Radiant Underﬂoor heating.

Use this parameter to select the type of valve control for heating and cooling. The heating and cooling valves can either have a relay control (two position On / Off) or a proportional control (0–10 V-). This parameter will be skipped in the menu if you select any option other than ‘02: 2-pipe FCU’, ‘03: 4-pipe FCU’ or ‘04: Radiant Underﬂoor Heating’ for the previous parameter (01b). Refer to your HVAC equipment manual to identify the type of valve control supported by your HVAC equipment. The different options available for this parameter are listed in the table below:

Table 11: Values for Type of Valve Control

Valve / Eleme nt Type (08b) Default Value

00: Relay

01: 0–10 V02: Floating point (FCUs only)

(09b): Fan Type

Applicable System: Fan Coil Units.

Use this parameter to select the type of control for fan. The fan can have either a relay control (3-speed fan control) or a proportional control (0–10 V-).

00: Relay

Note: Some of the Fan Coil Units can have a two-pole contact closure with a 2-speed fan (medium and high) or a single speed

fan (low). Refer to the wiring diagram in thermostat installation guide to install the SMC55-HWQS with Fan Coil Units with a 2-speed or single-speed fan.

This parameter will be skipped in the menu if you select any option other than ‘02: 2-pipe FCU’ or ‘03: 4-pipe FCU’ for the previous parameter (01b). Refer to HVAC equipment manual to identify the type of fan control supported by your HVAC equipment. The different options available for this parameter are listed in the table below:

Table 12: Values for Type of Fan Control

Fan Type (09b) Default Value

00: Relay 3-speed fan

01: 0–10 V- continuous speed

00: Relay 3-speed fan

For ﬂoating point control, see Application Note #630. Basic Conﬁguration set for the valve type is overridden when selecting Floating Point.

Continued on next page...

Page 15

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Step 4: Set the SMC55-HWQS Basic Parameters for System Compatibility (continued)

(10b): 2-Pipe Mode

Applicable System: 2-pipe Fan Coil Units.

Use this parameter to select the type of 2-pipe mode. Heat only mode is used only for heating, Cool only mode is used only for cooling. Changeover mode is used to either heat or cool depending on the temperature of the water in the pipes. In the changeover mode, a changeover sensor must be connected to the SMC55-HWQS. Refer to the Thermostat installation guide to install the changeover sensor.

When the water temperature is above the value selected for the advanced parameter ‘ChangeOverToHeatTemperature’, the SMC55-HWQS switches to the heating mode. It stays in the heating mode until the water temperature falls below the value selected for the advanced parameter ‘ChangeOverToCoolTemperature’. When the water temperature is below the value selected for the advanced parameter ‘ChangeOverToCoolTemperature’, the SMC55-HWQS changes over to cooling mode. It stays in the cooling mode until the water temperature rises above the value selected for the advanced parameter ‘ChangeOverToHeatTemperature’.

If the water temperature is between the two changeover points immediately after power up, the operating mode starts in the previous mode as per the value in the advanced parameter ‘2PipePreviousOperatingMode’. The water temperature is measured at 30 second intervals and the operating mode is updated accordingly.

This parameter will be skipped in the menu if you select any option other than 02: 2-Pipe for the previous parameter (01b). Refer to HVAC equipment manual to identify the type of 2-pipe FCU. The different options available for this parameter are listed in the table below:

Table 13: Values for 2-pipe Mode

2-Pipe Mode (10b) Default Value

01: Heat only 02: Cool only

03: Changeover

Continued on next page...

Page 16

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Step 4: Set the SMC55-HWQS Basic Parameters for System Compatibility (continued)

(11b): Underﬂoor Heating Control 1

Applicable Systems: Radiant Underﬂoor heating.

Use this parameter to select the type of control for radiant underﬂoor heating systems. Radiant underﬂoor heating systems can be controlled in three ways:

1. Based on indoor air temperature – This type of control is used to control the temperature depending on the room air

temperature.

2. Based on ﬂoor temperature sensor – This type of control is used to control the temperature depending on the temperature

measured by the ﬂoor temperature sensor.

3. Based on indoor air and ﬂoor limiting – This control type is similar to option ‘01: Indoor air temperature’. The air temperature is

controlled with the added feature to always maintain the temperature of the ﬂoor between the Slab Minimum and Slab Maximum temperatures. This parameter will be skipped if you select any option other than ‘04: Radiant Underﬂoor Heating’ for the previous parameter (01b). The different options available for this parameter are listed in the table below:

Table 14: Values for Underﬂoor Control

Underﬂoor Heating Control (11b) Default Value

01: Indoor air temperature

02: Indoor air and ﬂoor limiting 03: Floor temperature sensor only

01: Indoor air

temperature

Note: Refer to the installation manual of the underﬂoor heating equipment to install the ﬂoor sensor if the control type selected is

‘02: Indoor Air and Floor Limiting’ or ‘03: Floor Temperature Sensor’ only.

Included with SMC55-HWQS version 7420 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

Continued on next page...

Page 17

Step 4: Set the SMC55-HWQS Basic Parameters for System Compatibility (continued)

Saving and Exiting Basic Conﬁguration

Once the values for all the applicable basic conﬁguration parameters are entered, the following will be displayed on the thermostat.

Figure 5: End Screen for Basic Conﬁguration Parmeters

Press and hold to save all parameters to SMC55-HWQS and exit to normal operation

Return to previous parameter

P/N 032498h

The display in Figure 5 indicates that all the parameters speciﬁc to the HVAC system type are selected. At this stage, it is recommended to verify the values selected for each parameter. To verify the values selected for each parameter press the button. Keep pressing the button until the values of all the parameters is veriﬁed. Once all the values are veriﬁed, press the

button till you enter the ‘End’ screen.

When in the ‘End’ screen, press and hold the button until the button backlights ﬂash and the display shows the current room temperature (3 seconds) or the HVAC controller selection mode for the second zone (depending on the equipment conﬁguration). This is the normal operating mode and the thermostat and the SMC55-HWQS will start controlling the HVAC equipment. Refer to Figure 6 for an example of the display in normal operating mode.

Figure 6: Normal Operating Mode of the Thermostat

AUTO

Auto

Set

Page 18

P/N 032498h

Step 5: Set the SMC55-HWQS Advanced Parameters to Modify the Functionality of the HVAC System

Use the Advanced Conﬁguration Mode if any advanced conﬁguration parameters must change from their default value.

To change / modify the advanced parameters, follow the steps below.

1. Press and hold and for 3 seconds until the buttons backlight and the display ﬂashes.

2. Release the buttons and immediately (with in 15 seconds) press and hold for 3 seconds until the button backlights stop

ﬂashing. Advanced conﬁguration parameter ‘01A’ will be shown.

The display on the thermostat will be as shown in Figure 7.

Figure 7: Advanced Conﬁguration Mode

Flashes while editing the value of the selected parameter

Flashes while selecting the

Set

Tap to save parameter value

Hold to save all settings and exit mode

parameter ID to edit

Increase current parameter value

Returns to selecting the parameters without saving the current value

Decrease current parameter value

In Figure 7, 01A represents the advanced conﬁguration parameter for SMC55-HWQS. ‘00’ represents the value of this parameter and ‘Ad’ indicates that this is an advanced conﬁguration parameter. The following table describes the buttons that are used to select a value for the advanced conﬁguration parameter to conﬁgure the SMC55-HWQS.

Table 15: Buttons Used to Select Advanced Conﬁguration Parameters

Thermostat Buttons Action

Press to select the advanced parameter or the value of the advanced conﬁguration parameter. Either the advanced parameter or value of the advanced parameter will ﬂash on pressing the button.

Press and hold to exit the Advanced Conﬁguration Mode.

Press to increase / decrease the advanced parameter or value of the advanced parameter, whichever is ﬂashing in the menu.

Press to go back to previous parameter.

Continued on next page...

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Step 5: Set the SMC55-HWQS Advanced Parameters to Modify the Functionality of the HVAC System (continued)

Table 16 lists out the details of all the advanced conﬁguration parameters. Some of the advanced parameters are applicable to

all types of HVAC equipment while some are applicable to a speciﬁc type of HVAC equipment. The table below also categorizes these parameters based on the type of applicable systems.

Table 16: Advanced Conﬁguration Parameters for the SMC55-HWQS

Applicable Systems

All

All (except for radiant underﬂoor heat)

All

FCUs with multi-speed fan

Advanced Conﬁguration Parameter

01A Function Type

02A

03A Deadband Inactive range above and below the Setpoint 1 °F 0.1 °F – 10 °F

06A

07A

08A

11A Cool Fan on Delay

12A Heat Fan on Delay

18A

19A

20A

26A

27A

05A

09A

Name Description Default Value Range

2: Not Conﬁgured (sets itself to 0 automatically when connected to a thermostat and basic conﬁguration is entered)

1: Thermostat sensor 0 – 1

0 seconds 0 – 99

3: Auto 0 – 3

4: Au to 0 – 5

0° F -5.0 – +5.0

30 minutes 0.5 – 99.5

0: Alarm and keep trying 0 – 1

1.5 °F 0.1 – 10.0

0: Off 0 – 1

0 – 2

0 – 99.9 (minutes)

Temperature Se n s or Ty p e

Minimum Fan On Time

Overrun Cool Fan Time

Overrun Heat Fan Time

Standalone Temperature Operation Mode

Standalone Fan Mode (not applicable to radiant ﬂoors)

Remote Sensor Temperature Offset

Cannot Reach Setpoint Timeout

Cannot Reach Setpoint Action

Fan High Differential

Kick-Star t Fan (multi-speed fan only)

0: Operate with thermostat 1: Standalone 2: Not Conﬁgured

0: Flush mounted sensor connected to

HVAC controller

1: Thermostat sensor

Minimum time fan is on in auto mode (minutes) 2 minutes 0 – 99

Minutes the fan runs after cooling relay opens 0 minutes

Minutes the fan runs after heating relay opens 0.1 minutes

Time to delay start of fan after cooling star ts. Only used with Fan Auto Speed when fan was las t of f.

Time to delay start of fan after heating starts. Only used with Fan Auto Speed when fan was las t of f.

0: Off 1: Heat Only 2: Cool Only 3: Auto

0: Off 1: L ow 2: Medium 3: High 4: Au to 5: Single Speed On

Temperature offset for remote temperature sensor. This allows for compensation based on the installation location of the probe.

Cannot reach setpoint alarm time threshold (minutes)

0: Alarm and keep trying 1: Alarm and enter failsafe

Auto fan mode temperature difference in degrees to switch from medium to high fan speed

0: Off 1: Set fan high for 1 second when turning on

Continued on next page...

Page 20

Step 5: Set the SMC55-HWQS Advanced Parameters to Modify the Functionality of the HVAC System (continued)

Table 16: Advanced Conﬁguration Parameters for the SMC55-HWQS (continued)

Advanced Conﬁguration Parameter

40A

41A

42A

43A

44A

50A

51A

52A

53A

54A

55A

56A

60A

61A

70A

71A

72A

74A

75A

76A

77A

Name Description Default Value Range

Pipe Temperature for Changeover to Heat Mode

Pipe Temperature for Changeover to Cool Mode

Enable Purge Function

Purge Valve On-Time

Purge Valve Off-T ime

Proportional Fan Minimum

Proportional Fan Low Speed

Proportional Fan Medium Speed

Proportional Fan High Speed

Minimum Valve Percent Open

Valve Fully Open Differential

Non-proportional Analog output

Enable Floating Point

Actuator Running Time

Minimum Compressor Run Time (MCRT)

Minimum Compressor Off Time (MCOT)

Heat stage 1 delay (WOD)

Heat Stage 1

) On

1/W1

Heat Stage 1 (Y1 / W1) Off

Heat Compressor Stage 2 (Y2) On

Heat Compressor Stage 2 (Y2) Off

Pipe temperature that designates heating mode when using a 2-pipe system with a changeover sensor on the pipe.

Turns the valve on if left dormant to refresh pipe temperature; 0: Disabled; 1: Enabled

Number of minutes to leave the valve on during a purge. 0: Disabled

Hours to leave the valve off between purges 0: Disabled

The lowest percent output to apply for fan speed. This determines the low end-point of the fan being on. If at any time the fan output is 0% (Off), the valves will also close at 0%.

The % output to apply when the manual fanspeed is set to Medium.

The % output to apply when the manual fanspeed is set to High.

The lowest % output to apply for valve opening. This determines the low end-point of the straight-line curve for valve opening.

The temperature offset from deadband at which the valve is fully open (100% opening).

Enable 0–10 V- outputs for non-proportional fan and valves.

0: Disabled, 1: Enabled (overrides basic valve conﬁguration)

Actuator Running Time for Floating Point control.

Minimum run time for compressor. 0 minutes 0 – 99 minutes

Minimum off time for compressor. 5 minutes 0 – 99 minutes

Minimum off time for W1 (conventional heat stage 1)

°F below setpoint to turn stage on. 1 °F

°F above setpoint to turn stage off. 1 °F

°F below setpoint to turn stage on. 2 °F

°F above setpoint to turn stage off. 0 °F

82 °F 75 – 99

60 °F 32 – 70

1: Enabled 0 – 1

2 minutes 0 – 60

2 hours

10% 0 – 100

20% 0 – 100

60% 0 – 100

100% 0 – 100

10% 0 – 100

1 °F .1 – 10.0

True (1)

0: Disabled 0 – 1

150 seconds 1 – 999

3 minutes 0 – 99 minutes

0.5 – 99.5 (hours)

0: disabled 1: enabled

1 °F – 10 °F

Applicable Systems

2-pi pe FCU

0–10 V- FCU

Floating Point Valves

Heat

and

Pump Conventional

Heat Pump

P/N 032498h

Included with SMC55-HWQS version 7420 or newer, SMC55-RESI version 7302 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

Continued on next page...

Page 21

Step 5: Set the SMC55-HWQS Advanced Parameters to Modify the Functionality of the HVAC System (continued)

Table 16: Advanced Conﬁguration Parameters for the SMC55-HWQS (continued)

Applicable Systems

Heat

and

Pump Conventional

Heat

Pump

Radiant

Floor

Advanced Conﬁguration Parameter

78A Aux / W2 On

79A Aux / W2 Off

80A

81A

82A

83A

84A

85A

88A

90A Slab Maximum

91A Slab Minimum

92A

93A

94A

Name Description Default Value Range

Cool Stage 1 On

Cool Stage 1 Off

Cool Stage 2 On

Cool Stage 2 Off

Compressor Cool Stage 2 Upstage Delay

Compressor Heat Stage 2 Upstage Delay

Reversing Valve Delay (RVD)

Floor 100% Differential Temperature

Floor 0% Differential Temperature

Cycles Per Hour

°F below setpoint to turn stage on. If auxiliary is stage 2, this differential is used to turn on.

°F above setpoint to turn stage off. If auxiliary is stage 2, this differential is used to turn off.

°F above setpoint to turn stage on. 1 °F

°F below setpoint to turn stage off. 1 °F

°F above setpoint to turn stage on. 2 °F

°F below setpoint to turn stage off. 0 °F

Stage 2 cooling will not turn on until the ﬁrst stage has run for the chosen duration. 0: 0 minutes, 1: 1 minute, 2: 2 minutes, 3: 5 minutes, 4: 10 minutes, 5: 20 minutes, 6: 30 minutes, 7: 1 hour, 8: 2 hours, 9: 4 hours, 10: 8 hours, 11–99: 11–99 hours

Stage 2 compressor heating will not turn on until the ﬁrst stage has run for the chosen duration. 0: 0 minutes, 1: 1 minute, 2: 2 minutes, 3: 5 minutes, 4: 10 minutes, 5: 20 minutes, 6: 30 minutes, 7: 1 hour, 8: 2 hours, 9: 4 hours, 10: 8 hours, 11–99: 11–99 hours

Delay to wait for reversing valve to change over. When changing between heat and cool, the thermostat will turn off the compressor, then wait for MCOT. The thermostat will then change the state of the O/B signal, and wait for the reversing valve delay (RVD) before turning the compressor and fan back on.

If slab temperature rises above this maximum, must turn off regardless of air temperature.

If slab temperature falls below this minimum, must turn on regardless of air temperature.

°F below the setpoint to turn on system to 100%. 2.0 °F 0 – 20 °F

°F above the setpoint to turn on system to 0%. 2.0 °F 0 – 20 °F

Cycles per hour (CPH).

3 °F

0 °F

0 minutes

0 minutes, however thermostat will default based on stages

1 second

85 °F 0 – 120 °F

60 °F 0 – 120 °F

3 (20 minute signal period)

P/N 032498h

1 °F – 10 °F

0 – 99 minutes

0 – 99 seconds

1-20 CPH

Included with SMC55-HWQS version 7420 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

Continued on next page...

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Step 5: Set the SMC55-HWQS Advanced Parameters to Modify the Functionality of the HVAC System (continued)

Parameters Applicable to All Types of HVAC Equipment

Some of the advanced conﬁguration parameters are applicable to all types of HVAC equipment. This sections lists out the details about these parameters.

(01A) Function Type

Use this parameter to deﬁne if the SMC55-HWQS is conﬁgured to work with the thermostat or conﬁgured to work as a standalone device without the thermostat. The SMC55-HWQS can work as a standalone HVAC controller if a remote air sensor is connected to the SMC55-HWQS. The default value for this parameter is set as ‘02: Not Conﬁgured’. Saving and exiting the basic conﬁgurations mode will automatically set this parameter to ‘00: Operate with Thermostat’ by default.

This parameter can be set to ‘01’ to still function without the thermostat connected. Once the thermostat is connected, you must change the value of this parameter back to ‘00’ so that the SMC55-HWQS should work with the thermostat.

Note: Standalone mode (‘01’) requires connecting a wired remote air temperature sensor to the SMC55-HWQS. See the SMC55-HWQS instruction sheet included in the box with the remote air temperature sensor. Set the parameter ‘02A’ to ‘00: Remote Temperature Sensor’ so that SMC55-HWQS can work with the remote sensor.

(02A) Temperature Sensor Type

Use this parameter to identify the temperature sensor used to measure the room temperature. Set this parameter to ‘01’ if using the sensor inside the thermostat to measure the room temperature. Set this parameter to ‘00’ if using the remote temperature sensor to measure the room temperature.

(06A) Minimum Fan On Time

Use this parameter to identify the minimum time the fan will run once it has turned on irrespective of whether or not the system is running. This minimum run time is used to avoid short cycling the fan motor.

(07A) Extended Cool Fan Time (OCFT)

Use this parameter to identify the extended amount of time which the fan runs after the system stops cooling. This is used to purge the cool air out of the vents.

(08A) Extended Heat Fan Time (OHFT)

Use this parameter to identify the extended amount of time which the fan runs after the system stops heating. This is used to purge the hot air out of the vents.

(11A) Cool Fan On Delay (CFOD)

Use this parameter to identify the time delay before the fan turns on after the system starts cooling. This is used so that uncomfortably hot air is not blown out of the vents.

(12A) Heat Fan On Delay (HFOD)

Use this parameter to identify the time delay before the fan turns on after the system starts heating. This is used so that uncomfortably cold air is not blown out of the vents.

(18A) Standalone Temperature Operation Mode

Use this parameter to identify the operating mode when the SMC55-RESI is set up to work in a standalone mode without the thermostat.

(19A) Standalone Temperature Fan Mode

Use this parameter to identify the fan mode when the SMC55-RESI is set up to work in a standalone mode without the thermostat.

Continued on next page...

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Step 5: Set the SMC55-HWQS Advanced Parameters to Modify the Functionality of the HVAC System (continued)

Parameters Applicable to All Types of HVAC Equipment (continued)

(26A) Cannot Reach Setpoint Timeout

Use this parameter to identify the maximum time it should take to reach the desired setpoint. If the desired setpoint is not reached within this time then an alarm is triggered to notify the user.

(27A) Cannot Reach Setpoint Action

Use this parameter to identify whether or not the system should continue heating or cooling after the alarm for ‘Cannot Reach Setpoint’ is triggered.

Set this parameter to ‘00’ if the system should continue heating/cooling. Set this parameter to ‘01’ if the system should stop heating or cooling when ‘Cannot Reach Setpoint’ alarm is triggered.

Parameters Applicable to Conventional and Heat Pump Systems

This section lists out the details of the advanced conﬁguration parameters applicable to Conventional and Heat Pump systems.

(70A) Minimum Compressor Run Time (MCRT)

Use this parameter to identify the minimum time the compressor must run to ensure proper lubrication. Refer to Figure 8 b elow. Even though the desired temperature setpoint is met the compressor will run for an additional amount of time till the minimum compressor run time expires.

Figure 8: Compressor Runs Until Minimum Compressor Time Expires

Min Compressor Run Time

Call Input for Compressor

- Compressor

signal out

Call for no

compressor

MCRT = 1 minute MCRT = 1 minute

MCRT Starts MCRT Starts

Time

Call for no

compressor

(71A) Minimum Compressor Off Time (MCOT)

Use this parameter to identify the minimum time for which the compressor must remain Off before it can start. This delay is intended to reduce compressor restart stress. Fan will stay off in Auto mode during this delay. Refer to the Figure 9 below, the compressor will start only after MCOT has expired.

Figure 9: Minimum Time for Which The Compressor Must Remain Off Before It Can Start

Min Compressor Off Time

Call Input for Compressor

Y1 - Compressor

signal out

Call for no compressor,

MCOT Start

MCOT = 5 minute MCOT = 5 minute

Call for no compressor,

MCOT Start

G - Fan output signal

Continued on next page...

Time

Page 24

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Step 5: Set the SMC55-HWQS Advanced Parameters to Modify the Functionality of the HVAC System (continued)

Parameters Applicable to Conventional and Heat Pump Systems (continued)

(74A) Heat Stage 1 – On Del ta 1

Use this parameter to identify the temperature below the heat setpoint when Heat Stage 1 should turn on. Refer to the control diagrams in Appendix A. These diagrams graphically represent the Heat Stage 1-On Delta for Conventional and Heat Pump systems.

(75A) Heat Stage 1 – Off Delta 1

Use this parameter to identify the temperature above the heat setpoint when Heat Stage 1 should turn off. Refer to the control diagrams in Appendix A. These diagrams graphically represent the Heat Stage 1-Off Delta for Conventional and Heat Pump systems.

(76A) Heat Stage 2 (Y2/W2/Aux) – On Delta 1

Use this parameter to identify the temperature below the heat setpoint when Heat Stage 2 should turn on. Refer to the control diagrams in Appendix A. These diagrams graphically represent the Heat Stage 2-On Delta for Conventional and Heat Pump systems.

(77A) Heat Stage 2 – Off Delta 1

Use this parameter to identify the temperature above the heat setpoint when Heat Stage 2 should turn off. Refer to the control diagrams in Appendix A. These diagrams graphically represent the Heat Stage 2-Off Delta for Conventional and Heat Pump systems.

(78A) Heat Stage 3 (Aux) – On Del ta 1

Use this parameter to identify the temperature below the heat setpoint when Heat Stage 3 (Aux) should turn on. Refer to the control diagrams in Appendix A. These diagrams graphically represent the Heat Stage 3-On Delta for Conventional and Heat Pump systems.

(79A) Heat Stage 3 (Aux) – Off Delta 1

Use this parameter to identify the temperature above the heat setpoint when Heat Stage 3 (Aux) should turn off. Refer to the control diagrams in Appendix A. These diagrams graphically represent the Heat Stage 3-Off Delta for Conventional and Heat Pump systems.

(80A) Cool Stage 1 – On Delta 1

Use this parameter to identify the temperature above the cool setpoint when Cool Stage 1 should turn on. Refer to the control diagrams in Appendix A. These diagrams graphically represent the Cool Stage 1-On Delta for Conventional and Heat Pump systems.

(81A) Cool Stage 1 – Off Delta 1

Use this parameter to identify the temperature below the cool setpoint when Cool Stage 1 should turn off. Refer to the control diagrams in Appendix A. These diagrams graphically represent the Cool Stage 1-Off Delta for Conventional and Heat Pump systems.

(82A) Cool Stage 2 – On Del ta 1

Use this parameter to identify the temperature above the cool setpoint when Cool Stage 2 should turn on. Refer to the control diagrams in Appendix A. These diagrams graphically represent the Cool Stage 2-On Delta for Conventional and Heat Pump systems.

Included with SMC55-HWQS version 7420 or newer, SMC55-RESI version 7302 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

Continued on next page...

Page 25

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Step 5: Set the SMC55-HWQS Advanced Parameters to Modify the Functionality of the HVAC System (continued)

Parameters Applicable to Conventional and Heat Pump Systems (continued)

(83A) Cool Stage 2 – Off Delta 1

Use this parameter to identify the temperature below the cool setpoint when Cool Stage 2 should turn off. Refer to the control diagrams in Appendix A. These diagrams graphically represent the Cool Stage 2-Off Delta for Conventional and Heat Pump systems.

(84A) Compressor Cool Stage 2 Upstage Delay (CC2SUD) 1

Use this parameter to identify the time delay after the ﬁrst stage of cooling has started before the Stage 2 for cooling starts. Refer to

Figure 10 below for the upstage delay before the Stage 2 of cooling is turned on.

Figure 10: Upstage Delay Before Starting Cooling Stage 2

Energizing O/B valve - Enable cooling

Call Input for Compressor

- Compressor

signal out

- Compressor

signal out

G - Fan On

Cooling energized

Call for Stage 2 cooling

Upstage 2nd cool

stage delay = 2 min.

FODC

OCFT

FODC

OCFT

(85A) Compressor Heat Stage 2 Upstage Delay (CH2SUD) 1

Use this parameter to identify the time delay after the ﬁrst stage of heating has started before the Stage 2 of heating starts.

(88A) Reversing Valve Delay (RVD) 1

Applicable System: Heat pump only.

Use this parameter to identify the time delay required for energizing the reversing valve. RVD is used to ensure that the reversing valve is fully energized before turning on the compressor. This delay is used in the following scenarios:

a. Turning on the SMC55-HWQS.

b. Transitioning from heating to cooling and from cooling to heating (after MCOT expires).

c. Transitioning from operating mode ‘Off’ to operating mode ‘Heating’, ‘Cooling’, or ‘Auto’ (after MCOT expires).

Refer to Figure 11 below, the system will start after both MCOT and RVD have expired.

Figure 11: The Heat Pump Starts Heating/Cooling Only After Reversing Valve Delay Expires

Reversing Valve Delay

Call input for reversing valve

Call input for compressor

MCOT started

O/B - Reversing valve signal out

- Compressor signal out

Included with SMC55-HWQS version 7420 or newer, SMC55-RESI version 7302 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

MCOT (5 min.)

Call for compressor

RVD started

Reversing

Valve Delay

MCOT started

Call for compressor

MCOT (5 min.)

Continued on next page...

Page 26

Step 5: Set the SMC55-HWQS Advanced Parameters to Modify the Functionality of the HVAC System (continued)

P/N 032498h

Parameters Applicable for Radiant Underﬂoor Heating System

Radiant Underﬂoor Heating Control Summary

Pulse Width Modulation (PWM) Temperature Control (for relay signals only)

Both indoor air temperature control and ﬂoor temperature control uses a PWM control algorithm when using relays. PWM works by turning the heat on during a calculated percentage of the cycles per hour (parameter 94A).

For example, if the controller is conﬁgured to have 3 cycles per hour, there will be three 20-minute time periods in an hour. Every time period will have the heat on for a calculated percentage of the period, known as a “duty cycle”. The duty cycle is calculated mostly by the temperature difference from the setpoint.

• The duty cycle equals 100% of the time period when the temperature is at or below the setpoint minus the ﬂoor 100% differential (parameter 92A). Example: If the setpoint equals 70 °F, the duty cycle is 100% when the temperature is at or below 68°F (70 °F − 2 °F).

• The duty cycle equals 0% of the time period when the temperature is at or above the setpoint plus the ﬂoor 0% differential (parameter 93A) Example: If the setpoint equals 70 °F, the duty cycle is 0% (off) when the temperature is at or above 72 °F (70 °F + 2 °F).

Figure 12: Simpliﬁed Graph of the Duty Cycle Calculation

100

Duty Cycle On %

60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80

Temperature (°F)

Short Cycle Prevention: To prevent the controller from cycling too quickly, duty cycle rounding is used if the cycle is almost fully

on or off. If the duty cycle value is 95% or higher, the duty cycle is rounded to 100%. If the duty cycle value is below the minimum pulse width (Parameter 54A), the duty cycle is rounded to 0%.

0–10 V- Control (for 0–10 V- signal only)

If the valve control is set to 0–10 V-, the controller provides a continuous voltage output to the valve actuator. Similar to PWM with relay control, the duty cycle calculated determines the output, but now in a voltage instead of an on / off interval. For example, a duty cycle of 30% is similar to a 3.0 V output signal to the valve actuator.

Duty Cycle Sample Adaptation (for both relay and 0–10 V- signals)

The radiant ﬂoor control algorithm also uses a duty cycle sample adaptation. The purpose of the adaptation is to dynamically change the duty cycle according to the newly sampled temperature.

Included with SMC55-HWQS version 7420 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

Continued on next page...

Page 27

Step 5: Set the SMC55-HWQS Advanced Parameters to Modify the Functionality of the HVAC System (continued)

P/N 032498h

Parameters Applicable for Radiant Underﬂoor Heating System

(continued)

Parameter details

(54A) Minimum Pulse Width

The lowest valve on-time allowed. This determines the low-end point of the straight-line curve for valve duty cycle.

(90A) Slab Maximum

This parameter indicates the maximum temperature in Fahrenheit of the radiant ﬂoor after which the underﬂoor heating system stops heating irrespective of the indoor air temperature.

(91A) Slab Minimum

This parameter indicates the minimum temperature in Fahrenheit of the radiant ﬂoor below which the underﬂoor heating system starts heating irrespective of the indoor air temperature.

(92A) Floor 100% Differential Temperature

Use this parameter to indicate the temperature in Fahrenheit below the heat setpoint when the underﬂoor heating system is at maximum capacity.

(93A) Floor 0% Differential Temperature

Use this parameter to indicate the temperature in Fahrenheit above the heat setpoint when the underﬂoor heating system is at minimum capacity.

(94A) Cycles Per Hour (CPH)

Use this parameter to indicate the total number of heating / cooling cycles per hour. For example, setting this parameter to 3cycles per hour indicates a 20 minute cycle.

Parameters Applicable for 0–10 V- Fan Coil Units

This section lists out the details of the advanced conﬁguration parameters applicable to 0–10 V- Fan Coil Units.

(50A) Proportional Fan Minimum

This parameter indicates the minimum percentage output for the fan to turn on. Below this value the fan will remain off.

(51A) Proportional Fan Low Speed

This parameter indicates the percentage output required to set the manual fan speed to ‘Low’.

(52A) Proportional Fan Medium Speed

This parameter indicates the percentage output required to set the manual fan speed to ‘Medium’.

(53A) Proportional Fan High Speed

This parameter indicates the percentage output required to set the manual fan speed to ‘High’.

(54A) Minimum Valve Percent Open

This parameter indicates the minimum percentage of output required to open the valves.

(55A) Valve Fully Open Differential

This parameter indicates the temperature offset from the deadband in Fahrenheit at which the valves are completely open.

(56A) Non-proportional Analog Output

This parameter indicates whether or not the valves follow non-proportional 0–10 V- output. Set this parameter to ‘01’ if enabling non-proportional analog output for valves. When enabled, only two analog output values are used, 0 V- and 10 V-.

Included with SMC55-HWQS version 7420 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

Continued on next page...

Page 28

P/N 032498h

Step 5: Set the SMC55-HWQS Advanced Parameters to Modify the Functionality of the HVAC System (continued)

Parameters Applicable for 2-pipe Fan Coil Units

This section lists out the details of the advanced conﬁguration parameters applicable to 2-Pipe Fan Coil Units.

(40A) Change Over to Heat for Pipe Temperature

Use this parameter to indicate the temperature at which the operating mode of a 2-pipe FCU changes to heating. This is applicable only if a value of ‘03: Changeover’ is selected for a basic conﬁguration parameter (10b) is used.

(41A) Change Over to Cool for Pipe Temperature

Use this parameter to indicate the temperature at which the operating mode of a 2-pipe FCU changes to cooling. This is applicable only if a value of ‘03: Changeover’ is selected for a basic conﬁguration parameter (10b).

(42A) Enable Purge Function

Use this parameter to indicate whether or not to turn the valves on to refresh the temperature of the pipes when left dormant. Set this parameter to ‘00’ to disable. Set this parameter to ‘01’ to enable the purge functionality.

(43A) Purge Valve On-Time

Use this parameter to indicate the number of minutes for which the valve should be left open during the purge. Set this to ‘00’ if the purge functionality is disabled in (42A).

(44A) Purge Valve Off-Time

Use this parameter to indicate the number of minutes to leave the valve closed in between the purges. Set this to ‘00’ if the purge functionality is disabled in (42A).

Parameters Applicable to a FCU with Multi-Speed Fan

This section lists out the details of the advanced conﬁguration parameters applicable to a FCU with multi-speed fan.

(05A) Fan High Differential

Use this parameter to indicate the difference between the measured room temperature and the setpoint temperature when the fan speed switches from ‘Medium’ to ‘High’ in Auto mode.

(09A) Kick-Start Fan

Use this parameter to indicate whether or not the fan should turn on at ‘High’ speed when turning on for the ﬁrst time. Set this parameter to ‘00’ to disable. Set this parameter to ‘01’ to enable the fan to turn on at high speed for 1 second.

Once all the advanced parameters are conﬁgured, verify the values selected for each advanced parameter. To exit the Advanced Conﬁguration Mode once all of the values are veriﬁed, hold the button until the button backlights ﬂash and the display shows the current room temperature (3 seconds). The thermostat will enter normal operating mode as shown in the example in Figur e 14.

Figure 13: Normal Operating Mode of the Thermostat

AUTO

Auto

Set

Page 29

P/N 032498h

Step 6: Veriﬁcation

Follow the steps below to verify the system functionality.

1. Press the button to enter Auto operating mode. Conﬁrm that ‘Auto’ is displayed

2. Press the button to cycle through the different supported fan modes and verify the fan is operational.

3. Verify heating:

a. Press the button to increase the heat setpoint at least ﬁve degrees above the room temperature

b. If , ‘Heat’ and ‘On’ are ﬂashing on the display, this indicates a recovery state, due to equipment protection delays. Heating

will start once these delays expire. See the Advanced Conﬁguration section for more details.

c. If the

4. Verify Cooling:

a. Press the

b. If

will start once these delays expire. See the Advanced Conﬁguration section for more details.

c. If the animates and words ‘Cool’ and ‘On’ are displayed - This indicates that the system has started cooling.

animates and the words ‘Heat’ and ‘On’ are displayed, this indicates that the system has started heating.

button to set the cool setpoint at least 5 ˚F below the room temperature.

, ‘Cool’ and ‘On’ are ﬂashing on the display, this indicates a recovery state, due to equipment protection delays. Cooling

Page 30

Troubleshooting

Symptom Possible Cause Solution

Display is blank The thermostat does not have power.

E0 shown on the master thermostat

E0 shown on the companion thermostat

E1 shown on the master thermostat

E1 shown on the companion thermostat

E2 shown on the display

E3 shown on the display

E4 shown on the display

E5 shown on the display Incorrect HVAC controller or thermostat model.

E6 shown on the display

System is not heating / cooling.

System is not heating / cooling as expected

The thermostat temperature sensor is not functioning pr op erl y.

A companion thermostat will show E0 if the temperature sensor for that zone is missing.

Wiring issue between the thermostat and the HVAC controller or HVAC controller does not have power.

The incorrect HVAC controller or Modbus address was selected.

Wiring issue between the processor and HVAC controller (if HVAC controller is connected to the processor).

The master thermostat (connected to the HVAC controller) is disconnected from the processor.

Remote temperature sensor is malfunctioning or misconﬁgured.

Changeover sensor malfunctioning or misconfigured (applicable only for 2-pipe systems).

QS link wiring error or the thermostat did not get a temperature reading from the system.

Slab temperature sensor for underfloor heating is missing, malfunctioning, or misconfigured.

The HVAC controller or HVAC equipment may not have power.

Mounting location of the thermostat is incorrect.

Wiring issue between the HVAC controller and the HVAC syste m.

The HVAC system may not have power. Ensure that the HVAC system has power.

Check the wiring to conﬁrm that Common (Black) and V+ (Red) are connected to a 24– 36 V- power supply.

Contact Customer Assistance.

Check the error code on the master thermostat.

Ensure that the HVAC controller communication link is wired correctly and isolated from all other connections and that the HVAC controller has po wer.

Enter HVAC controller selection mode and select the correct HVAC controller and Modbus address.

Check the wiring between the processor and HVAC controller.

Ensure that the QS link between the master thermostat and the processor is wired correctly.

Check the wiring between the sensor and the HVAC controller and confirm configuration.

Contact Customer Assistance

Ensure that SMC55-RESI and HQWT-T-HW are being used.

Check the wiring between the slab sensor and the HVAC controller and confirm configuration.

Ensure that the HVAC controller and HVAC equipment have power and are correctly wired. Consult an HVAC professional if the issue persists.

Refer to Mounting section of the thermostat installation guide.

Check the Wiring section in the thermostat installation guide.

P/N 032498h

Page 31

P/N 032498h

Appendix A

1. Heat Stage Relays

This table indicates the relays that will be energized for each heat stage based on the system type.

Table 17:

System Heat Stages Auxiliary Heat 1st Heat Stage 2nd Heat Stage 3rd Heat Stage Auxiliary Only

1 None Y1 and G

2 None Y

Heat Pump

2 Electric Y

2 Gas / Oil Y

3 Electric Y1 and G Y1, Y2, and G Y1, Y2, W2, and G W2 and G

3 Gas / Oil Y

Conventional, thermostat controlled heating fan

Conventional, equipment controlled heating fan

1 None W

2 None W

1 None W

2 None W

2. Cool Stage Relays

This table indicates the relays that will be energized for each cool stage based on the system type.

and G Y1, Y2, and G

and G Y1, W2, and G W2 and G

and G W2 and G W2 and G

and G Y1, Y2, and G W2 and G W2 and G

and G

and G W1, W2, and G

W1 and W

Table 18:

System Heat Stages Auxiliary Heat 1st Heat Stage

Heat Pump

Conventional

1 Y1, G, and O

2 Y

, G, and O Y1, Y2, G, and O

1 Y1 and G

2 Y

and G Y1, Y2, and G

Included with SMC55-HWQS version 7420 or newer, SMC55-RESI version 7302 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

Continued on next page...

Page 32

Appendix A (continued)

3. Control Diagrams For Turning On / Off Different Heat and Cool Stages

The control diagrams below graphically represent the on / off deltas for different heating and cooling stages.

Table 19: Default Values for Heat and Cool Stages

Heat & Cool Stage

Advanced Parameter

H1N: Heat Stage 1 on Delta ( 74 A ) 1

H1F: Heat Stage 1 Off Delta (75A) 1

H2N: Heat Stage 2 On Delta

H2F: Heat Stage 2 Off Delta

(76A ) 2

(77A ) 2

C1N: Cool Stage 1 On Delta (80A) 1

C1F: Cool Stage 1 Off Delta ( 81A) 1

C2N: Cool Stage 2 On Delta

C2F: Cool Stage 2 Off Delta

(82A) 2

(83A) 0

Control Diagram 1: Conventional or Heat Pump 1-Stage Heat, 1-Stage Cool

Default Value

P/N 032498h

Heat Stages (Fan On)

Heating

Cooling

HSP -H1N HSP HSP+H1F CSP-C1F CSP CSP+C1N

Off

Control Diagram 2: Heat Pump 2-Stage Heat, 2-Stage cool (No Auxiliary)

Heat Stages (Fan On)

On Off Off

HSP-H2N CSP+C2N

HSP -H1N HSP HSP+H1F CSP-C1F CSP CSP+C1N

Off

Cool Stages

(Fan On)

Cool

Stages (Fan On)

Heating

Cooling

Included with SMC55-HWQS version 7420 or newer, SMC55-RESI version 7302 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

Continued on next page...

Page 33

Appendix A (continued)

P/N 032498h

3. Control Diagrams For Turning On / Turning Off Different Heat and Cool Stages

(continued)

Control Diagram 3: Heat Pump or Conventional, 2-Stage Heat With Aux/W2 Heat (allowed to run with other heat stages),

HSP -H1N HSP HSP+H1F CSP-C1F CSP CSP+C1N

Off

Cool

Stages (Fan On)

Heat Stages (Fan On)

2 (Aux,

W2)

2-Stage Cool

On Off Off

HSP-H2N CSP+C2N

Heating

Cooling

Control Diagram 4: Heat Pump or Conventional, 2-Stage Heat With Aux/W2 Heat (NOT allowed to run with other

heat stages), 2-Stage Cool

Heat pump cannot run

with ga s on

Heat Stages (Fan On)

2 (Aux,

W2)

On Off Off

Stays off while gas is on

Off

HSP-H2N CSP+C2N

Heating

Cooling

HSP -H1N HSP HSP+H1F CSP-C1F CSP CSP+C1N

Off

Note: If Au x / W2 heat is delayed due to an upstage timer, stage 1 heat will continue until auxiliar y can turn on.

Included with SMC55-HWQS version 7420 or newer, SMC55-RESI version 7302 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

Continued on next page...

Cool Stages (Fan On)

Page 34

Appendix A (continued)

P/N 032498h

3. Control Diagrams For Turning On / Turning Off Different Heat and Cool Stages

(continued)

Control Diagram 5: Heat Pump 3-Stage Heat With Auxiliary Heat (allowed to run with other heat stages), 2-Stage Cool

Heat Stages (Fan On)

3 (Aux)

HSP-H3N

On Off Off

HSP-H2N CSP+C2N

HSP -H1N HSP HSP+H1F CSP-C1F CSP CSP+C1N

Heating

Cooling

Off

Cool

Stages

Off

(Fan On)

Control Diagram 6: Heat Pump 3-Stage Heat With Auxiliary Heat (NOT allowed to run with other heat stages), 2-Stage Cool

Heat pump cannot run

with ga s on

Off

Heat Stages (Fan On)

Off

Stays off while gas is on

HSP-H2N CSP+C2N

HSP -H1N HSP HSP+H1F CSP-C1F CSP CSP+C1N

Heating

Cooling

Off

Note: If Au x / W2 heat is delayed due to an upstage timer, stage 1 and 2heat will continue until auxiliary can turn on.

Included with SMC55-HWQS version 7420 or newer, SMC55-RESI version 7302 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

Cool Stages (Fan On)

Page 35

P/N 032498h

Appendix B: Installation Worksheet

It is recommended that before beginning to conﬁgure the SMC55-HWQS, the required values for the necessary parameters should be marked. The values required to conﬁgure the HVAC system can be written in this worksheet and used by the installer during conﬁguration.

Job Name:

HVAC system type:

Table 20: Basic Conﬁguration Parameters

Applicable Systems

All 01b Sys tem Ty pe

Heat

and

Pump Conventional

Heat Pump

Fan Coil Units and Radiant

Floor

Fan Coil Units

Radiant Floor

Included with SMC55-RESI version 7302 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

Included with SMC55-HWQS version 7420 or newer, SMC55-RESI version 7302 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

Basic

Name Description Default Value Range Conﬁguration Parameter

02b Heat Stages

Run Auxiliary Heat 03b

(Aux/W

other heat stages

Auxiliary Heat 04b

(Aux/W

delay

05b Cool Stages

06b Heat Fan Control

Change over / 07b

Reversing Valve

(O/B)

08b

Valve / Eleme nt

Type

09b Fa n Type

10b 2-pipe Mode

11b Floor Control Type

) with

) upstage

00: Conventional system

01: Heat pump 02: 2-Pipe FCU 03: 4-Pipe FCU 04: Underﬂoor radiant heat 05: Underﬂoor electric heat

00: None (No Heat Stage)

01: 1 Stage ( W

02: 2 Stage: 1 Compressor and 1 Auxiliar y

)

03: 2 Stage: 2 Compressor, No Auxiliary 04: 3 Stage: 2 Compressor and 1 Auxiliar y

00: No

01: Ye s

Skipped if no Aux/W

00: 0 minutes 01: 1 minute 02: 2 minutes 03: 5 minutes 04: 10 minutes

05: 20 minutes

06: 30 minutes 07: 1 hour 08: 2 hours 09: 4 hours 10: 8 hours 11- 24 : 11- 24 hour s Skipped if no Aux/W

00: None (no cool stage)

01: 1 Cool stage ( Y1)

02: 2 Cool stages (Y1, Y2)

00: Equipment controls fan

01: Thermostat controls fan

00: On for cooling (O)

01: On for heating (B)

00: Relay

01: 0–10 V02: Floating point (Fan coil units only)

00: Relay (G1, G2, G3)

01: 0–10 V01: Heat only

02: Cool only

03: Changeover 01: Indoor air only

02: Indoor air and ﬂoor limiting 03: Floor temperature only

00: Conventional

00–05

system

01: 1 Stage (W1)

00–04

01: Yes 00–01

05: 20 minutes

01: 1 Cool stage (Y1)

00 –24

00–02

01: Thermostat controls fan

00–01 00: On for cooling (O)

00: Relay 00–01

00: Relay (G1, G2, G3)

03: Changeover

01: Indoor air only

00–01

01–0 3

Value to be Set

Continued on next page...

Page 36

Appendix B: Installation Worksheet (continued)

Job Name:

HVAC system type:

Table 21: Advanced Conﬁguration Parameters for the SMC55-HWQS

Applicable Systems

All

All (except for radiant underﬂoor heat)

All

FCUs with multispeed fan

Advanced Conﬁguration Parameter

01A Function Type

02A

06A

07A

08A

11A Cool Fan on Delay

12A Heat Fan on Delay

18A

19A

20A

26A

27A

05A

09A

Name Description Default Value Range

Temperature Se n s or Ty p e

Minimum Fan On Time

Overrun Cool Fan Time

Overrun Heat Fan Time

Standalone Temperature Operation Mode

Standalone Fan Mode (not applicable to radiant ﬂoors)

Remote Sensor Temperature Offset

Cannot Reach Setpoint Timeout

Cannot Reach Setpoint Action

Fan High Differential

Kick-Star t Fan (multi-speed fan only)

0: Operate with thermostat 1: Standalone

2: Not Conﬁgured

0: Flush mounted sensor connected to

HVAC controller

1: Thermostat sensor

Minimum time fan is on in auto mode (minutes) 2 minutes 0 – 99

Minutes the fan runs after cooling relay opens 0 minutes

Minutes the fan runs after heating relay opens 0.1 minutes

Time to delay start of fan after cooling star ts. Only used with Fan Auto Speed when fan was las t of f.

Time to delay start of fan after heating starts. Only used with Fan Auto Speed when fan was las t of f.

0: Off 1: Heat Only 2: Cool Only

3: Auto

0: Off 1: L ow 2: Medium 3: High

4: Auto

5: Single Speed On

Temperature offset for remote temperature sensor. This allows for compensation based on the installation location of the probe.

Cannot reach setpoint alarm time threshold (minutes)

0: Alarm and keep trying

1: Alarm and enter failsafe

Auto fan mode temperature difference in degrees to switch from medium to high fan speed

0: Off

1: Set fan high for 1 second when turning on

2: Not Conﬁgured 0 – 2

1:Thermostat sensor 0 – 1

0 – 99.9 (minutes)

0 seconds 0 – 99

3: Auto 0 – 3

4: Au to 0 – 5

0° F

30 minutes

0: Alarm and keep

trying

1.5° F

0: Off 0 – 1

-5.0 – +5.0

0.5 –

99.5

0 – 1

0.1 –

10.0

P/N 032498h

Value to be Set

Continued on next page...

Page 37

Appendix B: Installation Worksheet (continued)

Job Name:

HVAC system type:

Table 21: Advanced Conﬁguration Parameters for the SMC55-HWQS (continued)

Applicable Systems

2-pi pe FCU

0–10 VFCU

Floating Point Valves

Heat

and

Pump Conventional

Heat Pump

Included with SMC55-RESI version 7302 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

Included with SMC55-HWQS version 7420 or newer, SMC55-RESI version 7302 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

Continued on next page...

Advanced Conﬁguration Parameter

40A

41A

42A

43A

44A

50A

51A

52A

53A

54A

55A

56A

60A

61A

70A

71A

72A

74A

75A

76A

77A

Name Description Default Value Range

Pipe Temperature for Changeover to Heat Mode

Pipe Temperature for Changeover to Cool Mode

Enable Purge Function

Purge Valve On-Time

Purge Valve Off-T ime

Pipe temperature that designates heating mode when using a 2-pipe system with a changeover sensor on the pipe.

Turns the valve on if left dormant to refresh pipe temperature; 0: Disabled; 1: Enabled

Number of minutes to leave the valve on during a purge. 0: Disabled

Hours to leave the valve off between purges 0: Disabled

82° F 75 – 99

60° F 32 – 70

1: Enabled 0 – 1

2 minutes 0 – 60

2 hours 0.5 – 99.5 (hours)

The lowest percent output to apply for fan Proportional Fan Minimum

speed. This determines the low end-point of

the fan being on. If at any time the fan output is

10% 0 – 100

0% (Off), the valves will also close at 0%. Proportional Fan

Low Speed Proportional Fan

Medium Speed Proportional Fan

High Speed

Minimum Valve Percent Open

Valve Fully Open Differential

Non-proportional Analog output

Enable Floating Point

Actuator Running Time

The % output to apply when the manual fan-

speed is set to Medium.

The % output to apply when the manual fan-

speed is set to Medium.

The % output to apply when the manual fan-

speed is set to High.

The lowest % output to apply for valve

opening. This determines the low end-point of

the straight-line curve for valve opening.

The temperature offset from deadband at

which the valve is fully open (100% opening).

Enable 0–10 V- outputs for non-proportional

fan and valves.

0: Disabled, 1: Enabled

(overrides basic valve conﬁguration).

Actuator Running Time for Floating Point

control.

20% 0 – 100

60% 0 – 100

100% 0 – 100

10% 0 – 100

1° F .1 – 10.0

True (1)

0: Disabled 0 – 1

150 seconds 1 – 999

Minimum Compressor Run

Minimum run time for compressor. 0 minutes 0 – 99 minutes Time (MCRT)

Minimum Compressor Off

Minimum off time for compressor. 5 minutes 0 – 99 minutes Time (MCOT)

Heat stage 1 delay (WOD)

Heat Stage 1

) On

1/W1

Heat Stage 1

/ W1) Off

Heat Compressor Stage 2 (Y2) On

Heat Compressor Stage 2 (Y

) Off

Minimum off time for W1 (conventional heat

stage 1).

3 minutes 0 – 99 minutes

°F below setpoint to turn stage on. 1° F 1° F – 10° F

°F above setpoint to turn stage off. 1° F 1° F – 10° F

°F below setpoint to turn stage on. 2° F 1° F – 10° F

°F above setpoint to turn stage off. 0° F 1° F – 10° F

P/N 032498h

Value to be Set

0: disabled 1: enabled

Page 38

Appendix B: Installation Worksheet (continued)

Job Name:

HVAC system type:

Table 21: Advanced Conﬁguration Parameters for the SMC55-HWQS (continued)

Applicable Systems

Heat

Pump

and

Conventional

Heat Pump

Radiant

Floor

Included with SMC55-HWQS version 7420 or newer, SMC55-RESI version 7302 or newer and HomeWorks Palladiom Thermostat version 1.10 or newer.

Advanced Conﬁguration

Name Description Default Value Range

Parameter

78A Au x / W

79A Au x / W

Off

°F below setpoint to turn stage on. If auxiliary is stage 2, this differential is used to turn on.

°F above setpoint to turn stage off. If auxiliary is stage 2, this differential is used to turn off.

80A Cool Stage 1 On °F above setpoint to turn stage on. 1° F

81A Cool Stage 1 Off °F below setpoint to turn stage off. 1° F

82A Cool Stage 2 On °F above setpoint to turn stage on. 2° F

83A Cool Stage 2 Off °F below setpoint to turn stage off. 0° F

Stage 2 cooling will not turn on until the ﬁrst stage has run for the chosen duration.

84A

Compressor Cool Stage 2 Upstage Delay

0: 0 minutes, 1: 1 minute, 2: 2 minutes, 3: 5 minutes, 4: 10 minutes, 5: 20 minutes, 6: 30 minutes, 7: 1 hour, 8: 2 hours, 9: 4 hours, 10: 8 hours, 11– 99 : 11– 9 9 h o u r s

Stage 2 compressor heating will not turn on until the ﬁrst stage has run for the chosen duration.

0: 0 minutes, 1: 1 minute, 2: 2 minutes, 3: 5 minutes, 4: 10 minutes, 5: 20 minutes, 6: 30 minutes, 7: 1 hour, 8: 2 hours,

85A

Compressor Heat Stage 2 Upstage Delay

9: 4 hours, 10: 8 hours, 11– 99 : 11– 9 9 h o u r s

Delay to wait for reversing valve to change over. When changing between heat and cool,

88A

Reversing Valve Delay (RVD)

the thermostat will turn off the compressor, then wait for MCOT. The thermostat will then change the state of the O/B signal, and wait for the reversing valve delay (RVD) before turning the compressor and fan back on.

90A Slab Maximum

91A Slab Minimum

Floor 100%

92A

Differential Temperature

If slab temperature rises above this maximum, must turn of f regardless of air temperature.

If slab temperature falls below this minimum, must turn on regardless of air temperature.

°F below the setpoint to turn on system to 100%.

Floor 0%

93A

Differential

°F above the setpoint to turn on system to 0%. 2.0 °F 0 – 20 ºF

Temperature

94A Cycles Per Hour Cycles per hour.

3° F

0° F

0 minutes

0 minutes, however thermostat will default based on stages

1 second

85 °F 0 – 120 ºF

60 °F 0 – 120 ºF

2.0 °F 0 – 20 ºF

3 (20 minute signal period)

P/N 032498h

Value to be Set

1° F – 10° F

0 – 99 minutes

0 – 99 seconds

1-20 CPH

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P/N 032498h

Auto

Off

Heat On

Cool On

Aux

Heat On

Appendix C: User Interface for the Thermostat

Once the system is conﬁgured, verify the user interface and functionality of the thermostat.

The following steps illustrate details about the user interface of the thermostat.

1. Press the button to cycle through the different available fan modes. The fan modes cycle through only those modes which are selected during conﬁguration.

Fan Mode

Low

Medium

High

Auto

Symbol on the Thermostat

2. Press the button to toggle the schedules between On and Hold.

Schedule Status

Hold

Symbol on the Thermostat

The schedule will be enabled only if a HomeWorks QS processor is connected to the thermostat. In standalone systems (thermostat and

SMC55-HWQS without the HomeWorks QS processor), when pressing the button the schedule will toggle between ‘Hold’ and ‘On’ but will change back to the default ‘Hold’ state after two seconds.

3. Press the button to cycle through the different operating modes.

Operating Modes

Heat

Cool

Auto

Off

Auxiliary only

Symbol on the Thermostat

AUTO

OFF

Only

The operating modes cycle through only those modes that are selected during the installation.

4. In the Heat operating mode, press the buttons to increase or decrease the heating setpoint temperature.

5. In the Cool operating mode, press the buttons to increase or decrease the cooling setpoint temperature.

Continued on next page...

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Appendix C: User Interface for the Thermostat (continued)

Heat On

Cool On

6. In Auto mode, you will see both heat and cool setpoints as shown in the image below:

AUTO

Auto

Set

P/N 032498h

Heat setpoint is represented by the

symbol next to the setpoint value whereas the cool setpoint is represented by the

symbol next to the setpoint value.

In this mode, on the ﬁrst press of the buttons either the heat setpoint value or the cool setpoint value will start ﬂashing. Press the button if you want to select the value of the other setpoint.

Press the buttons again to increase / decrease the value of the setpoint that is ﬂashing.

Appendix D: Reenter Conﬁguration Menus

If any changes are needed after the initial conﬁguration has been completed, follow the steps below.

1. Press and hold and until the backlight ﬂashes (3 seconds). Release the buttons and immediately press and hold:

a. to reenter Equipment Conﬁguration mode. “EC” will be shown on the display.

b. to reenter Controller Selection mode. “CO” will be shown on the display.

c. to reenter Basic Conﬁguration mode. “bA” will be shown on the display.

Appendix E: Determine Firmware Version (optional)

(Only available with thermostat version 3.05 or later)

1. To determine the Firmware Version of the thermostat, hold

thermostat will be shown.

2. If thermostat is used in combination with SMC53 / SMC55 then within 10 seconds of completing Step 1:

a. Press the button for the Firmware Version of the FCU Controller.

and

buttons for 3 seconds and the ﬁrmware version of the

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P/N 032498h

Lutron, HomeWorks, and Palladiom are trademarks or registered trademarks of Lutron Electronics Co., Inc. in the US and/or other countries. All other product names, logos, and brands are property of their respective owners.

Lutron Contact Numbers

WORLD HEADQUARTERS U.S.A. Lutron Electronics Co., Inc. 7200 Suter Road Coopersburg, PA 18036-1299

TEL: +1.610.282.3800 FAX: +1.610.282.1243

support@lutron.com

www.lutron.com/support

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1.844.LUTRON1 (1.844.588.7661)

Mexico:

+1.888.235.2910

Central/South America:

+1.610.282.6701

UK AND EUROPE Lutron EA Limited 125 Finsbury Pavement 4th floor, London EC2A 1NQ United Kingdom

TEL: +44.(0)20.7702.0657 FAX: +44.(0)20.7480.6899 FREEPHONE (UK): 0800.282.107 Technical Support: +44.(0)20.7680.4481

lutronlondon@lutron.com

ASIA Singapore Lutron GL Ltd. 390 Havelock Road #07-04 King’s Centre Singapore 169662

TEL: +65.6220.4666 FAX: +65.6220.4333 Technical Support: 800.120.4491

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Asia Technical Hotlines

Northern China: 10.800.712.1536 Southern China: 10.800.120.1536 Hong Kong: 800.901.849 Indonesia: 001.803.011.3994 Japan: +81.3.5575.8411 Macau: 0800.401 Taiwan: 00.801.137.737 Thailand: 001.800.120.665853 Other Countries: +65.6220.4666

P/N 032498 Rev. H 03/2021

Lutron HomeWorks QS User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual