Tekmar 670 Install Instructions

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Page 1

Installation & Operation Manual

Mod Boiler

WiFi Snow Melting Control 670

Boiler & Mixing / Electric

Power 115 V (ac) ±10%, 60 Hz, 20 VA Relays 230 V (ac) 5 A 1/3 hp Var. Pump 230 V (ac) 2.4 A

1084-01 Designed and assembled in Canada

Date Code

H2055A

1 kΩ max 1 kΩ max

Opn

Var2–

Mix V/mA

Pwr

Mix

Cls

Blu8Yel9Brn/

Slab

Man

Melt

Blk/

Com

Red

Boiler 1

Stage 1

Boiler 1 Stage 2

Heat

Relay

System

Pump–22+

23 24 25

Do Not Apply Power

Mix

Sup

Com

Boil17Out

Com

tN4

13 282726

Power

29L30

For product literature: Pour la documentation du produit: Para la literatura del producto: tekmarControls.com

Disconnect all power before opening.

WARNING

Coupez l'alimentation avant l'ouverture.

ATTENTION

Desconecte la electricidad antes de abrir.

ADVERTENCIA

Signal wiring must be rated at least 300 V. Le câblage du signal doit être d'une capacité d'au moins 300 V. Cableado de señal debe tener una caliﬁcación mínima de 300 V.

Contains WiFi transceiver: FCC ID: Z64-CC3100M0DR1, IC: 4511-CC3100M0DR1 Meets Class B: FCC Part 15B, ICES-003

Manual Melt

Time Left

- - : - - hrs

Outdoor

32 °F

Settings Status

System is Melting

Stop

10:30 AM

Warming Up

670_D

WiFi Snow Melting Control 670

Snow Melting

10/16

Replaces: New

Introduction

The WiFi Snow Melting Control 670 operates hydronic and electric heating equipment designed to melt snow and/or ice from roads and walkway surfaces. The control works with the tekmar Snow/Ice Sensor 090 or Snow Sensor 095 to automatically detect snow or ice and operates a single boiler, steam valve, or electric cable to supply heat to the slab. Boiler return protection is provided to non-condensing boilers using a mixing valve or variable speed injection mixing pump. The tekmar Connect mobile application allows for remote operation and monitoring of the snow melting system from anywhere in the world.

Features

• Mobile app for iOS and Android

• Automatic software updates

• Automatic snow/ice detection

• Supports both inslab & retrofit aerial sensors

• Supports multiple zones with priority

• Idling

• Auto Storm

• Warm Weather Shut Down

• Cold Weather Cut Off

• EconoMelt

• Slab Protection

• Tandem Snow/Ice Detection

• Equipment exercising

Page 2

Table of Contents

Important Safety Information .............................................3

Installation .........................................................................4

Preparation ....................................................................4

Packaging Contents ......................................................4

Physical Dimensions .....................................................4

Installation Location .......................................................4

Installing the Enclosure ................................................. 5

Rough-In Wiring ............................................................. 6

Sensor Wiring ................................................................ 7

tekmarNet ...................................................................... 9

Manual Melt Input ......................................................... 10

Equipment Wiring .........................................................10

Testing the Sensor Wiring ............................................ 13

Testing the Control Wiring ............................................ 13

Manual Override – Maximum Heat .............................. 14

Manual Override – Purge .............................................14

Manual Override – Test ................................................14

Manual Override – Off .................................................. 14

Access Levels ............................................................... 14

User Interface ...................................................................15

Home Screen ................................................................ 15

System Operation ......................................................... 15

Symbols ........................................................................ 16

Help Screen .................................................................. 16

Status Menu Navigation ............................................... 16

System Status Menu .................................................... 17

Slab Status Screen .......................................................18

Weather Status Screen ................................................ 18

Settings Menu Navigation ............................................ 19

Temp Menu ................................................................... 20

Away Menu ................................................................... 21

Display Menu ................................................................ 21

WiFi Menu ..................................................................... 22

Time Menu .................................................................... 22

Energy Menu ................................................................23

Monitor Menu ................................................................ 24

Setup – System Setup Menu ........................................ 25

Setup – Boiler Setup Menu .......................................... 26

Setup – Mixing Setup Menu .........................................27

tekmarNet Menu ........................................................... 28

Toolbox Menu ...............................................................29

Override Menu ..............................................................30

tekmar Connect Mobile & Web App .................................31

Add Control to App .......................................................31

Account ......................................................................... 32

My Devices ................................................................... 32

Control Operation ......................................................... 33

Energy Usage ............................................................... 33

Sequence of Operation ................................................... 34

Snow Melting Overview ................................................34

Melt – Automatic Start and Stop .................................. 34

Melt – EconoMelt .......................................................... 35

Additional Melting Time ................................................ 35

Melt – Automatic Start and Timed Stop ....................... 35

Tandem Snow/Ice Detection ........................................ 36

Melt – Manual Start and Timed Stop ...........................36

Melt - Tracked Start and Stop ......................................36

Idle Operation ............................................................... 37

Storm Operation ...........................................................37

Slab Temperature Control ............................................ 37

Slab Protection .............................................................38

Warm Weather Shut Down ........................................... 38

Cold Weather Cut Off ................................................... 38

Snow Melt Zones and Priority ...................................... 38

Time Clock .................................................................... 40

Away Operation ............................................................ 40

tekmarNet Scene Operation .........................................40

Application Modes ........................................................ 41

Electric Operation ......................................................... 41

Pulse Width Modulation Zone Operation ..................... 41

Boiler Operation ............................................................ 42

Mixing Operation .......................................................... 43

Boiler and Mixing Operation ......................................... 43

Outdoor Sensor ............................................................43

Exercising ..................................................................... 43

Post Purge .................................................................... 43

Troubleshooting ............................................................... 44

Error Messages (1 of 4) ................................................ 44

Error Messages (2 of 4) ................................................ 45

Error Messages (3 of 4) ................................................ 46

Frequently Asked Questions ........................................ 47

Technical Data ................................................................. 48

Limited Warranty and Product Return Procedure ........... 48

Getting Started

Congratulations on the purchase of your new Snow Melting Control! This manual covers the complete installation, programming and sequence of operation for this control. You will also find

instruction on testing, commissioning, and troubleshooting the control and system that it operates.

2 of 48

Page 3

Important Safety Information

It is your responsibility to ensure that this control is safely installed according to all applicable codes and standards. tekmar is not responsible for damages resulting from improper installation and/or maintenance.

This is a safety-alert symbol. The safety alert symbol is shown alone or used with a signal word (DANGER, WARNING, or CAUTION), a pictorial and/or a safety message to identify hazards. When you see this symbol alone or with a signal word on your equipment or in this manual, be alert to the potential for death or serious personal injury.

This pictorial alerts you to electricity, electrocution, and shock hazards.

This symbol identifies hazards which, if not avoided, could result in death or serious injury.

This symbol identifies hazards which, if not avoided, could result in minor or moderate injury.

This symbol identifies practices, actions, or failure to act which could result in property damage or damage to the equipment.

Read manual and all product labels BEFORE using the equipment. Do not use unless you know the safe and proper operation of this equipment. Keep this manual available for easy access by all users. Replacement manuals are available at tekmarControls.com

•

It is the installer’s responsibility to ensure that this control is safely installed according to all applicable codes and standards.

•

Improper installation and operation of this control could result in damage to the equipment and possibly even personal injury or death.

• This control is not intended for use as a primary limit control. Other controls that are intended and certified as safety limits must be placed into the control circuit.

Do not attempt to service the control. There are no user serviceable parts inside the control. Attempting to service the control voids the warranty.

Radio Frequency Interference

The installer must ensure that this control and its wiring are isolated and/or shielded from strong sources of electromagnetic noise. Conversely, this Class B digital apparatus complies with Part 15 of the FCC Rules and meets all requirements of the Canadian Interference-Causing Equipment Regulations. However, if this control does cause harmful interference to radio or television reception, which is determined by turning the control off and on, the user is encouraged to try to correct

the interference by re-orientating or relocating the receiving antenna, relocating the receiver with respect to this control, and/or connecting the control to a different circuit from that to which the receiver is connected.

Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

3 of 48

Page 4

Installation

Mod Boiler

WiFi Snow Melting Control 670

Boiler & Mixing / Electric

Power 11 5 V (ac) ±10%, 60 Hz, 20 VA Relays 230 V (ac) 5 A 1/3 hp Var. Pump 230 V (ac) 2.4 A

1084-01 Designed and assembled in Canada

Date Code

H2055A

1 kΩ max 1 kΩ max

Opn

Var2–

Mix V/mA

Pwr

Mix

Cls

Blu8Yel9Brn/

Slab

Man

Melt

Blk/

Com

Red

Boiler 1

Stage 1

Boiler 1 Stage 2

Heat Relay

System Pump–22+

23 24 25

Do Not Apply Power

Mix

Sup

Com

Boil17Out

Com14tN4

13 282726

Power

29L30

For product literature: Pour la documentation du produit: Para la literatura del producto: tekmarControls.com

Disconnect all power before opening.

WARNING

Coupez l'alimentation avant l'ouverture.

ATTENTION

Desconecte la electricidad antes de abrir.

ADVERTENCIA

Signal wiring must be rated at least 300 V. Le câblage du signal doit être d'une capacité d'au moins 300 V. Cableado de señal debe tener una caliﬁcación mínima de 300 V.

Contains WiFi transceiver: FCC ID: Z64-CC3100M0DR1, IC: 4511-CC3100M0DR1 Meets Class B: FCC Part 15B, ICES-003

Manual Melt

Time Left

- - : - - hrs

Outdoor

32 °F

Settings Status

System is Melting

Stop

10:30 AM

Warming Up

Preparation

Tools Required

-----------------------------------------------------------------------------------------

• tekmar or jeweler screwdriver

• Phillips head screwdriver

Materials Required

-------------------------------------------------------------------------------------

• 18 AWG LVT solid wire (low-voltage connections)

• 14 AWG solid wire (line-voltage connections)

Packaging Contents

The following are included in the product packaging:

• 1 WiFi Snow Melting Control 670

• 3 Universal Sensor 082

• 1 Outdoor Sensor 070

• 1 screwdriver

Physical Dimensions

Front View

Side View

• Needle-nose pliers

• Wire stripper

• Four 1/8" - 1" wood screws

• 1 Application Brochure 670_A

• 1 Installation and Operation Manual 670_D

• 1 User Manual 670_U

Mounting Base

1/2"

(13 mm)

7/8"

(23 mm)

6–5/8"

(170 mm)

1/2"

(14 mm)

1–7/8" (49 mm)

7–5/8"

2–7/8"

(72 mm)

3/16" (5 mm)

(193 mm)

Installation Location

Choose the placement of the control early in the construction process to enable proper wiring during rough-in.

• Keep the control dry. Avoid potential leakage onto the control.

• Maintain relative humidity less than 90% in a non-condensing environment.

• Avoid exposure to extreme temperatures beyond 32-122°F (0-50°C).

• Install away from equipment, appliances, or other sources of electrical interference.

• Install to allow easy access for wiring, viewing, and adjusting the display screen.

• Install approximately 5 feet (1.5 m) off the finished floor.

• Locate the control near pumps and/or zone valves if possible.

• Provide a solid backing which the enclosure can be mounted to. Example: plywood or wall studs.

• Use the conduit knockouts provided on the upper, lower, back and sides of the enclosure for wiring.

4 of 48

1/2" Knock-out (x 5 back) (x 5 bottom)

Page 5

Installing the Enclosure

• Install the control enclosure to a wall or to an electrical box.

•

Three wiring chamber dividers are included. The dividers provide a barrier to keep low voltage wiring separated from line voltage wiring.

• If the dividers are not used, then low voltage circuits must use wire rated at least 300 V.

Press down at the ﬁngertip grips

on top of the front cover

and pull

out and down.

Remove the safety dividers from the wiring chamber by pulling them straight out of their grooves.

The control can be mounted on a standard DIN rail. First remove the control from its base and then, using the hooks and spring clip on the back of the control, mount it onto the DIN rail. This will be a popular option for those who prefer to mount the control inside a larger electrical panel. The DIN Snap Kit M9303 is sold separately.

Lift the front cover up and away

from the control.

Control release clip

Press the control release clip on the base inside the wiring chamber and slide the control upwards.

Loosen the screws at the front of the wiring cover.

from the base.

The wiring can enter the bottom or the back of the enclosure. Knock-outs provided in the base allow the wiring to be run in conduit up to the enclosure. The base also has holes that line up with the mounting holes of most common electrical boxes.

The wiring cover pulls straight out from the wiring chamber.

13 Mounting holes

Control release

clip

There are 10 conduit knock-outs at the back

and bottom of the wiring chamber.

The base is ready for mounting.The control lifts up and away

5 of 48

Page 6

Rough-In Wiring

To prevent the risk of personal injury and/or death, make sure power is not applied to the control until it is fully installed and ready for final testing. All work must be done with power to the circuit being worked on turned off.

Please be aware local codes may require this control to be installed or connected by an electrician.

•

Install the supplied wiring compartment barriers by sliding them into the grooves provided to isolate the low and linevoltage wiring.

• Strip all wiring to a length of 3/8 in. or 10 mm for all terminals.

• A circuit breaker or power disconnect that provides power to the control should be located nearby and clearly labeled.

• Refer to the current and voltage ratings at the back of this manual before connecting devices to this control.

Low-Voltage Wiring

Pull two conductor 18 AWG LVT cable, up to 500 feet (150 m) long, for the following equipment:

• Outdoor temperature sensor

• Mix supply sensor

• Boiler sensor

• Single-stage on/off boiler

• Modulating boiler 0-10 V (dc) or 4-20 mA

•

Mixing valve or mixing injection pump using a 0-10 V (dc) or 4-20 mA signal.

Line-Voltage Wiring

Pull two conductor 14 AWG cable, up to 500 feet (150 m) long, for the following equipment:

• System pump

• Boiler pump

• Heat exchanger on/off injection pump

• Variable speed injection pump

-------------------------------------------------------------------------------------

------------------------------------------------------------------------------------

Pull three conductor 18 AWG LVT cable, up to 500 feet (150 m) long, for the following equipment:

• Mixing valves using a floating action signal

Pull four conductor 18 AWG LVT cable, up to 500 feet (150 m) long, for the following equipment:

• Snow Sensor 095

• Two-stage on/off boiler

Pull the Snow/Ice Sensor 090 or 094 cable to the control.

6 of 48

Page 7

Sensor Wiring

Mounting the Outdoor Sensor

--------------------------------------------------------------------------

• The temperature sensor (thermistor) is built into the sensor enclosure.

• The outdoor sensor can either be mounted directly onto a wall and the wiring should enter through the back or bottom of the enclosure. Do not mount the outdoor sensor with the conduit knockout facing upwards because rain could enter the enclosure and damage the sensor.

S1 S1

Remove cover by

sliding up-

wards away

from the

base.

If using

conduit,

remove the

flexible plug

from the

base bottom.

S1 S1

To wire from

the back,

remove the

knock-out in

the sensor

base.

Attach the

base to the

wall, soffit

or electrical

box.

•

In order to prevent heat transmitted through the wall from affecting the sensor reading, it may be necessary to install an insulating barrier behind the enclosure.

•

The outdoor sensor should be mounted on a north-facing wall. The outdoor sensor should not be exposed to heat sources such as ventilation or window openings.

•

The outdoor sensor should be installed at an elevation above the ground that will prevent accidental damage or tampering.

Wiring the Outdoor Sensor

•

Connect 18 AWG or similar wire to the two terminals provided

-----------------------------------------------------------------------------

in the enclosure and run the wires from the outdoor sensor to the control. Do not run the wires parallel to telephone or power cables. If the sensor wires are located in an area with strong sources of electromagnetic interference (EMI), shielded cable or twisted pair should be used or the wires can be run in a grounded metal conduit. If using shielded cable, the shield wire should be connected to the Com terminal on the control and not to earth ground.

•

Follow the sensor testing instructions in this manual and connect the wires to the control.

• Replace the front cover of the sensor enclosure.

At the control:

• Connect the outdoor sensor to terminals 16 and 18.

S1 S1

Wires from

outdoor sensor

and sensor

common

terminals on

tekmar control

Out

Boil

Com

7 of 48

Page 8

Mounting the Boiler and System Sensors

--------------------------------------------------------------

The Universal Sensor 082 is designed to mount on a pipe or in a temperature immersion well. The sensor should be placed downstream of a pump or after an elbow or similar fitting. This is especially important if large-diameter pipes are used as the thermal stratification within the pipe can result in erroneous sensor readings. Proper sensor location requires that the fluid is thoroughly mixed within the pipe before it reaches the sensor.

Strapped to Pipe

The Universal Sensor can be strapped directly to the pipe using the cable tie provided. Insulation should be placed around the sensor to reduce the effect of air currents on the sensor measurement.

Immersion Well

If a Universal Sensor is mounted onto 1" (25 mm) diameter L type copper pipe, there is approximately an 8 second delay between a sudden change in water temperature and the time the sensor measures the temperature change. This delay increases considerably when mild steel (black iron) pipe is used. In general, it is recommended that a temperature well be used for steel pipe of diameter greater than 1-1/4" (32 mm). Temperature wells are also recommended when large diameter pipes are used and fluid stratification is present.

Conduit Connection

The Universal Sensor and Universal Sensor Enclosure 080 (sold separately) are specifically designed to mount onto a 3/8" (10 mm) ID temperature well that is supplied with an end groove. To install the well, plumb a tee into the pipe and fix the well into the tee. The 080 enclosure has a 7/8" (22 mm) back knockout that must be removed and fitted over the temperature well. The universal sensor is then inserted into the well and the retaining clip supplied with the enclosure is snapped onto the well end groove. If the well has a threaded end, the installer must supply a standard threaded conduit retaining ring. The two wires from the sensor are connected to the terminal block provided in the enclosure. The other side of the terminal block is used to connect wires from the control.

Retaining

Clip

Universal

Sensor

Sensor Well

Universal

Sensor

Bottom of

Enclosure 080

Cable Tie

Mounting the Boiler Sensor

----------------------------------------------------------------------------

The boiler sensor is used when operating a boiler.

• If applicable, connect the boiler sensor to terminals 16 and 17.

Mounting the Mix Supply Sensor

-----------------------------------------------------------------------

The mix supply sensor is used when operating a mixing valve or a variable speed injection pump is installed.

• If applicable, connect the mix supply sensor to terminals 14 and 15.

8 of 48

Com

Boil

Mix Sup

Page 9

Snow/Ice Sensor

Slab

Com

Slab

Com

11C12

---------------------------------------------------------------------------------------

A Snow/Ice Sensor 090 or 094 can be connected to the control. The 090 has a 65' (20 m) cable and the 094 has a 208' (63 m) cable. The cable may be extended to a total length of 500' (150 m) using 18 AWG cable. Any junction boxes must kept dry.

If the Snow/Ice Sensor input is used:

• Connect the red wire to terminal 6.

• Connect the black wire to terminal 7.

• Connect the blue wire to terminal 8.

• Connect the yellow wire to terminal 9.

• Connect the brown wire to terminal 10.

Red

Blk/

Blu8Yel9Brn/

Snow Sensor

-------------------------------------------------------------------------------------------

A Snow Sensor 095 can be connected to the control.

If the Snow Sensor input is used:

• Connect the red wire to terminal 6.

• Connect the black wire to terminal 7.

• Connect the blue wire to terminal 8.

• Connect the yellow wire to terminal 9.

Slab Sensor

--------------------------------------------------------------------------------------------

A Slab Sensor 072 or 073 can be installed either alone or together with a Snow Sensor 095.

If the Slab Sensor input is used: Connect the slab sensor to terminals 7 and 10.

Red

Snow

Sensor

Blk/

Com

095

Blk/

Blu8Yel9Brn/

Slab

Blu8Yel9Brn/

tekmarNet

The 670 can be connected to other tekmarNet communication compatible controls using the tN4 bus.

If tekmarNet is used:

•

Connect tN4 on the 670 terminal 11 to the tN4 wiring terminal on the other device.

• Connect C on the 670 terminal 12 to the C wiring terminal on the other device.

• tekmarNet is polarity sensitive.

9 of 48

tN4

670

other tN4

control

tN4

Page 10

Manual Melt Input

Melt

1413

–

Var

Mix

L N G

The manual melt input allows the control to be manually switched to melting operation using a switch. This connection is optional.

If the Manual Melt input is used: Connect a switch to terminals 13 and 14. The switch may be either dry (no voltage)

or a voltage signal up to 32 V (ac).

Equipment Wiring

Man

Com

Wiring the Analog Mixing Output

-----------------------------------------------------------------------

The control can operate a mixing valve by providing a 0-10 V (dc) or a 4-20 mA signal to the valve actuating motor.

• If applicable, connect the mixing actuator positive (+) to terminal 1.

• If applicable, connect the mixing actuator negative (-) to terminal 2.

Wiring the Floating Action Mixing Output

---------------------------------------------------------------

The control provides a floating action signal to operate a floating action actuator. The floating action mixing output uses dry relay contacts that can switch either 24, 120, or 230 V (ac). When using 24 V (ac), a Transformer 009 is required to power the actuator. The actuator terminals are typically labeled for clockwise and counterclockwise rotation. The control's open and close terminals are wired to the actuator depending on the direction the valve rotates to open and close respectively.

• Connect the power source to the Pwr terminal 4 on the control.

• Connect the Opn terminal 3 to the actuator terminal that rotates the valve open.

• Connect the Cls terminal 5 to the actuator terminal that rotates the valve close.

• If using a 24 V (ac) transformer, connect the actuator common to the transformer C.

• If using a 120 V or 230 V (ac) power supply, connect the actuator common to the power supply neutral (N).

Opn

Pwr

Cls

Mix V/mA

Com Close Open

Wiring the Injection Mixing Pump

A variable speed injection mixing pump requiring up to operated through terminals 3 and 4. For simplicity in wiring and troubleshooting, a separate breaker for the pump is recommended.

----------------------------------------------------------------------

230 V (ac), 2.4 A

Opn

Var

Pwr Mix

• Connect 115 or 230 V (ac) power L to the Pwr Mix terminal 4.

• Connect a wire from Var terminal 3 to the pump L.

• Connect a wire from the pump N to the power Neutral.

• Connect the ground wire (G) to the pump.

10 of 48

Page 11

Modutrol IV™

Wiring to a Modulating Boiler

Actuating

Mod Boiler

Stage 1–22+

22 23 24

---------------------------------------------------------------------------

The control provides either a 4-20 mA or a 0-10 V (dc) output to the boiler. Polarity must be observed.

• Connect the Mod + terminal from the boiler to terminal 19.

• Connect the Mod - terminal from the boiler to terminal 20.

• Some modulating boilers require an enable to start firing the boiler. Connect the boiler enable to the stage 1 terminals 21 and 22.

Boiler 1

TT+

Mod Enable

The 4 to 20 mA output can be converted to a 0 - 135 Ω output for a Modutrol IV™ gas valve actuating motor using a 0 - 135 Ω tekmar Converter 005 (sold separately).

Modutrol IV V9055

0 - 135 Ω

Actuating

Motor

Snow Melting Control

Mod

R W

Modutrol IV

tekmar

B R W

670

Modutrol IV™ and V9055™ are trademarks of Honeywell, Inc.

Wiring to a Single-Stage Boiler

-------------------------------------------------------------------------

V9055

B R

tekmar

A single-stage boiler is enabled through the T-T contacts.

• Connect Stage 1 terminals 21 and 22 to the boiler T-T contacts.

The 4 to 20 mA output can be converted to a 0 - 135 Ω output for a V9055™ gas valve actuating motor using a 0 - 135 Ω tekmar Converter 005 (sold separately).

Modutrol IV

tekmar

B R W

V9055

B R

tekmar

Mod

V9055™ 0 - 135

Motor

Snow

Melting Control

670

Boiler 1 Stage 1

Wiring to a Two-Stage Boiler

---------------------------------------------------------------------------

A two-stage boiler is enabled through the T-T contacts.

• Connect Stage 1 terminals 21 and 22 to the boiler's stage 1 contacts.

• Connect Stage 2 terminals 23 and 24 to the boiler's stage 2 contacts.

11 of 48

Stage 1

Boiler 1

Stage 1

Stage 2

Stage 1

Page 12

L30N

Wiring the Heat Relay

Relay

R C

Pump

2827

----------------------------------------------------------------------------------

If the heat relay is operating a pump: The pump can be rated up to

230 V (ac), 5 A, 1/3 hp

and switched through terminals 25 and 26. For simplicity in wiring and troubleshooting, a separate breaker for each pump is recommended.

• Connect the power source line wire (L) to terminal 26.

• Connect a wire from terminal 25 to the pump L.

• Connect a wire from the pump N back to the power source neutral.

• Connect the ground wire (G) to the pump.

If the heat relay is wired to a 24 V(ac) on-off valve:

• Connect the power source red wire (R) to terminal 25.

• Connect a wire from terminal 26 to the valve R.

• Connect a wire from the valve C to the power source common.

If the heat relay is wired to an electrical contactor:

• Connect a wire from terminal 25 to the electrical contactor R.

• Connect a wire from terminal 26 to the electrical contactor C.

Heat

L N G

Heat

Relay

Heat

Relay

Wiring the System Pump

A system pump requiring up to

-------------------------------------------------------------------------------

230 V (ac), 5 A, 1/3 hp

can be switched through terminals 27 and 28. For simplicity in wiring and troubleshooting, a separate breaker for each pump is recommended.

• Connect the power source line wire (L) to terminal 28.

• Connect a wire from terminal 27 to the pump L.

• Connect a wire from the pump N back to the power source neutral.

• Connect the ground wire (G) to the pump.

Wiring the Input Power

---------------------------------------------------------------------------------

Provide a 15 A circuit for the input power.

• Connect the 115 V (ac) line wire (L) to terminal 29.

• Connect the neutral wire (N) to terminal 30.

System

L N G

Power

12 of 48

Page 13

Testing the Sensor Wiring

A good quality test meter capable of measuring up to 5,000 kΩ (1 kΩ = 1000 Ω) is required to measure the sensor resistance. In addition, the actual temperature must be measured with either a high-quality digital thermometer, or if a thermometer is not available, a second sensor can be placed alongside the one to be tested and the readings compared.

First, measure the temperature using the thermometer and then measure the resistance of the sensor at the control. The wires from the sensor must not be connected to the control

while the test is performed. Using the chart below, estimate

Temperature Resistance Temperature Resistance Temperature Resistance Temperature Resistance

°F °C

-50 -46 490,813 20 -7 46,218 90 32 7,334 160 71 1,689

-45 -43 405,710 25 -4 39,913 95 35 6,532 165 74 1,538

-40 -40 336,606 30 -1 34,558 100 38 5,828 170 77 1,403

-35 -37 280,279 35 2 29,996 105 41 5,210 175 79 1,281

-30 -34 234,196 40 4 26,099 110 43 4,665 180 82 1,172

-25 -32 196,358 45 7 22,763 115 46 4,18 4 185 85 1,073

-20 -29 165,18 0 50 10 19,900 120 49 3,760 190 88 983

-15 -26 139,403 55 13 17, 436 125 52 3,383 195 91 903

-10 -23 118,018 60 16 15, 311 130 54 3,050 200 93 829

-5 -21 100,221 65 18 13,474 135 57 2,754 205 96 763 0 -18 85,362 70 21 11,883 140 60 2,490 210 99 703 5 -15 72,918 75 24 10,501 145 63 2,255 215 102 648

10 -12 62,465 80 27 9,299 150 66 2,045 220 104 598 15 -9 53,658 85 29 8,250 155 68 1,857 225 107 553

°F °C °F °C °F °C

the temperature measured by the sensor. The sensor and thermometer readings should be close. If the test meter reads a very high resistance, there may be a broken wire, a poor wiring connection or a defective sensor. If the resistance is very low, the wiring may be shorted, there may be moisture in the sensor or the sensor may be defective. To test for a defective sensor, measure the resistance directly at the sensor location.

Do not apply voltage to a sensor at any time as damage to the sensor may result.

Testing the Control Wiring

Remove the front cover from the control.

Testing the Power

• Use an electrical meter set to measure (ac) voltage.

• Measure between the L and N terminals.

• The reading should be 115 V (ac) +/– 10%.

Hand Manual Override

The control includes a Hand Manual Override menu to check if the control’s relays are operating and that the control is wired correctly to the snow melting equipment.

Step 1: Step 2: Step 3: Step 4: Step 5: Step 6:

• System Pump relay

• Heat Relay

• Boiler Stage 1 relay

• Boiler Stage 2 relay

• Boiler Modulation 0-10 V (dc) or 4-20 mA signal

• Mix System Output 0-10 V (dc) or 4-20 mA signal

• Mix System Output floating action relays

• Mix System Output variable-speed injection pump

Press Settings button. Press Override button. Press Manual Override. Select Manual Override to Hand. Press Back button. The following outputs can be operated:

-------------------------------

---------------------------

For each relay output

• Use an electrical meter set to measure (ac) voltage.

• Measure between the relay wiring terminals.

• When the relay is off, the voltage should be 115 V (ac).

• When the relay is on, the voltage should be 0 V (ac).

For the Boiler Modulation

• Use an electrical meter set to measure V (dc) or mA.

• Set the Boiler Modulation to 100%.

•

The voltage between the + and – wiring terminals should be 10 V (dc) or 20 mA.

• Set the Boiler Modulation to 0%.

•

The voltage between the + and – wiring terminals should be 0 V (dc) or 4 mA.

For the Mix System Output – Floating Action

• Use an electrical meter set to measure (ac) voltage.

• Set the Mix Output to 100%. The floating action open wiring terminal will be closed for the length of the motor speed set ting (default is 105 seconds).

• When opening, the voltage between the open and common wiring terminals should be 24 V (ac) or 115 V (ac).

•

When opening, the voltage between the close and common wiring terminals should be 0 V (ac).

• Set the Mix Output to 0%. The floating action closed wiring terminal will be closed for the length of the motor speed set ting (default is 105 seconds).

•

When closing, the voltage between the open and common wiring terminals should be 0 V (ac).

• When closing, the voltage between the close and common wiring terminals should be 24 V (ac) or 115 V (ac).

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Page 14

For the Mix Output – Analog Mixing

• Use an electrical meter set to measure V (dc) or mA.

• Set the Mix Output to 100%.

•

The voltage between the + and – wiring terminals should be 10 V (dc) or 20 mA.

• Set the Mix Output to 0%.

•

The voltage between the + and – wiring terminals should be 0 V (dc) or 4 mA.

For the Mix Output – Variable Speed Injection Mixing

• Use an electrical meter set to measure V (ac).

• Set the Mix Output to 100%.

Manual Override – Maximum Heat

• The voltage between the Var and N wiring terminals should be 115 V (ac).

• Set the Mix Output to 0%.

• The voltage between the Var and N wiring terminals should be 0 V (ac).

Exiting the Hand Manual Override

• Exit the Manual Override by selecting Auto.

• Install the front cover.

---------------

In hydronic application modes, the control includes a Maximum Heat operation where the control operates the snow melting system to maintain the maximum allowed heating setpoints. This allows testing of the snow melting system during warm weather.

Manual Override – Purge

When operating a hydronic snow melting system, it is necessary to purge and bleed all air out of the system. The control includes a Purge operation where the system, primary and boiler pumps are all turned on to assist in purging air from the system.

Manual Override – Test

When operating an electric snow melting system, the control includes a Test operation where the electrical heating cables can be energized for 10 minutes, after which the control resumes normal operation. This allows testing of the electric snow melting system during warm weather.

Step 1: Step 2: Step 3: Step 4: Step 5:

Step 6:

Step 1: Step 2: Step 3: Step 4: Step 5:

Step 6:

Step 1: Step 2: Step 3: Step 4: Step 5:

Step 6:

Press Settings button. Press Override button. Press Manual Override. Select Manual Override to Max Heat. Press Back button. The control starts the Max Heat

operation. Exit the Manual Override by selecting Auto.

Press Settings button. Press Override button. Press Manual Override. Select Manual Override to Purge. Press Back button. The control starts the Purge

operation. Exit the Manual Override by selecting Auto.

Press Settings button. Press Override button. Press Manual Override. Select Manual Override to Test. Press Back button. The control starts the electric

test operation for up to 10 minutes before exiting automatically.

Exit the Manual Override by selecting Auto.

Manual Override – Off

The snow melting system can be manually turned off and the control remains off until manually changed back to Auto. This allows the installer or end user to permanently disable the snow melting system without removing power from the control.

Access Levels

The control is shipped pre-programmed with common settings. The control has an “Installer” access level that allows full access to all settings and a “User” access level that restricts the number of settings available. The control defaults to the “

User” access level after 12 hours of operation.

Step 1: Step 2: Step 3: Step 4: Step 5:

Step 6:

To change to the

• Step 1: Press the Settings button.

• Step 2: Press the Toolbox button.

• Step 3: Press Access Level.

• Step 4: Press the Installer radio button.

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Press Settings button. Press Override button. Press Manual Override. Select Manual Override to Off. Press Back button. The control is now in the off manual

override. Exit the Manual Override by selecting Auto.

“

Installer” access level:

Page 15

User Interface

Home Screen

Remaining melting

run time

System operation

information

Go to settings menu

to setup control

System Operation

Information about slab and outdoor conditions

View status of sensor readings and equipment.

SYSTEM IS MELTING

•

The control has either detected snow/ice and automatically started or the control was manually started.

• "Warming Up" is shown when the slab is below the slab target temperature.

SYSTEM IS OFF

• The snow melting system is off and is ready to detect snow or ice.

•

"Warm Weather Shut Down" is shown when the slab and outdoor temperature are above the WWSD setting. During WWSD, the snow will melt naturally due to warm outdoor temperatures.

• "Cold Weather Shut Down" is shown when the outdoor temperature is below the CWCO setpoint. The outdoor temperature is so cold the heating system does not have capacity to melt snow.

•

"Melt Pending" is shown when the system is off during CWCO but will resume melting once the outdoor temperature increases above the CWCO setpoint.

SYSTEM IS IDLING

• The control is pre-heating the slab to the idling setpoint. This reduces the amount of time needed to reach the melting setpoint in the event snow or ice is detected.

STORM PREDICTED

•

The Internet weather forecast is predicting a snow fall and the control is pre-heating the slab to the storm setpoint. This reduces the amount of time needed to reach the melting setpoint in the event snow or ice is detected.

SYSTEM IN OVERRIDE / SYSTEM IN EXERCISING

• The control is in a manual override for testing, commissioning or exercising.

• The description field explains which type of override is active.

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Page 16

Symbols

WARNING SYMBOL

The control has a error message. Press the warning symbol to determine the error code and information on how to take corrective action. Refer to the Troubleshooting section for a list of error codes.

Help Screen

The display includes a Help screen for each setting. The Help screen provides a description of the setting that is identical to the description found in the Installation and Operation Manual.

Status Menu Navigation

Step 1: Press the Status button on the Home Screen. Step 2: Press either the System, Slab or Weather button. Step 3: Press up or down buttons to scroll through the list.

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Page 17

System Status Menu

Description Range Access

MANUAL MELT INPUT

When Manual Melt wiring terminal 13 is shorted to common wiring terminal 14, the control is enabled and enters the melting operation unless prevented by warm weather shut down or cold weather cut out. When the manual melt input is disconnected, the control completes the melting cycle and then returns to off, idle or storm operation.

Conditions: Always

TEKMARNET

When tekmarNet communication is present, the status shows active. When there is no tekmarNet communication, the status is off.

Conditions: Always

Off, Enabled

Off, Active

User

Installer

User

Installer

BOILER TARGET

The boiler target calculated by the control based on outdoor temperature, slab temperature and the melting, idling, or storm setpoints. “- - -” is displayed when no heat is required.

Conditions: Application mode is set to Boiler or Boiler+Mix.

BOILER SUPPLY

Current boiler supply water temperature. Conditions: Application mode is set to Boiler or Boiler+Mix.

BOILER OUTPUT

Current boiler plant percent output. Conditions: Application mode is set to Boiler or Boiler+Mix.

STAGE 1

Current status of the stage 1 relay. Conditions: Application mode is set to PWM Zone, Mixing, Boiler, or Boiler+Mix.

STAGE 2

Current status of the stage 2 relay. Conditions:

MIX TARGET

The mix target calculated by the control based on outdoor temperature, slab temperature and one of either the melting, idling, or storm setpoints. ”- - -” is displayed when no heat is required.

Conditions: Application mode is set to Mixing or Boiler+Mix.

MIX SUPPLY

Current mix supply water temperature. Conditions: Application mode is not set to Electric.

Boiler type is set to Stage 2.

– – –,

50 to 230°F

(10.0 to 110.0°C)

-31 to 266°F

(-35.0 to 130.0°C)

0 to 100%

On or Off

– – –,

70 to 200°F

(21.0 to 93.5°C)

-31 to 266°F

(-35.0 to 130.0°C)

User

Installer

User

Installer

User

Installer

User

Installer

User

Installer

User

Installer

MIX OUTPUT

Current position of the mixing valve or output of the variable speed injection pump. Conditions: Application mode is set to Mixing or Boiler+Mix.

SYSTEM PUMP

Current status of the system loop pump. Conditions: Application mode is set to PWM Zone, Mixing or Boiler+Mix.

HEAT RELAY

Current status of the heat relay. Conditions: Application mode is set to PWM Zone, Boiler, Mixing or Boiler+Mix.

ELECTRIC ENABLE RELAY

Current status of the electric snow melt enable relay. Conditions: Application mode is set to Electric.

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0 to 100%

On or Off

User

Installer

User

Installer

User

Installer

User

Installer

Page 18

Slab Status Screen

Description Range Access

OUTDOOR

Current outdoor air temperature as measured by the outdoor sensor or from the tekmarNet system or Internet weather forecast. “– – –” is displayed when no outdoor temperature reading is available.

Conditions: Always available.

SLAB TARGET

The slab target calculated by the control based on outdoor temperature and the melting, idling, or storm setpoints. “- - -” is displayed when no heat is required.

Conditions: Always available.

SLAB SENSOR

Current slab sensor temperature. Conditions:

SENSOR WATER STATUS

Current status of snow/ice sensor moisture detector. Conditions:

Snow/ice sensor set to In-slab or slab sensor is set to On.

Snow/ice sensor is set to In-slab or Aerial.

– – –,

-67 to 149°F

(-55.0 to 65.0°C)

– – –,

32 to 110°F

(0 to 43.0°C)

-58 to 167°F

(-50.0 to 75.0°C)

DRY or WET

User

Installer

User

Installer

User

Installer

Weather Status Screen

When WiFi is turned on, the control receives weather data from the Internet. The current weather, outdoor temperature and forecast snow fall information is displayed.

Current outdoor conditions

Predicted snow forecast

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Page 19

Settings Menu Navigation

Step 1: Press the Settings button on the Home Screen. Step 2: Press one of the ten buttons. Step 3: Press up or down buttons to scroll through the list. Step 4: Press the highlighted setting name to change the setting value.

•

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Page 20

Temp Menu

Description Range Access

MELTING SETPOINT

Select the desired temperature of the snow melt surface when melting. Conditions: Always available.

IDLING SETPOINT

Select the desired temperature of the snow melt surface when idling. Idling preheats the slab when the slab is dry but cold and allows faster reaction time to reach the melting temperature when snow is detected. Recommended for commercial use only.

Conditions: Always available.

STORM SETPOINT

Select the desired temperature of the snow melt surface while operating in the storm operation. Storm operation temporarily preheats the slab to allow faster reaction time to reach the melting temperature when snow is detected. Storm operation is automatically activated by the Internet weather forecast or manually started by a User Switch or Gateway.

Conditions: Always available.

MANUAL MELT TIME

Select the amount of running time when manually starting the system. Conditions: Always available.

ADD MELT TIME

Select the amount of additional melting time after the Snow/Ice Sensor is dry. This allows low spots on the slab to fully dry before the snow melting system is shut off.

Conditions: Snow/ice sensor is set to In-slab or Aerial

32 to 95°F

(0.0 to 35.0°C) Default = 36°F

(2.0°C)

OFF, 20 to 95°F

(-6.5 to 35.0°C)

Default = Off

OFF, 20 to 95°F

(-6.5 to 35.0°C)

Default = Off

0:30 to 24:00

hours

Default = 4:00

hours

0:00 to 6:00

hours

Default = 0:00

hours

User

Installer

User

Installer

User

Installer

User

Installer

STORM RUN TIME

Select the amount of storm run time to pre-heat the slab when advised of a winter storm warning.

Conditions:

SENSITIVITY

Select how sensitive Snow/Ice Sensor is to water detection. Conditions: Snow/ice sensor is set to In-slab or Aerial.

WWSD

Select the temperature above which the snow melting system is shut off during warm weather. This allows the snow or ice to melt off the slab naturally.

Conditions: Always available.

CWCO

Select the temperature below which the snow melting system is shut off during extremely cold weather. Below this temperature, the heat loss of the slab exceeds the capacity of the boiler or heating appliance.

Conditions: Always available.

Storm setpoint is set to a temperature.

0:30 to 24:00

hours

Default = 8:00

hours

Auto, Min, -2, -1, Mid, +1, +2, Max

Default = Auto

Auto, 32 to 95°F

(0.0 to 35.0°C)

Default = Auto

Off, -30 to 50°F

(-34.5 to 10.0°C)

Default = 10°F

(-12.0°C)

Installer

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Page 21

Away Menu

At Home

Select at home to allow automatic snow melting operation.

Away

Select away to prevent snow melting operation and save energy.

The home/away changes devices system-wide. All thermostats and controls that are grouped together as a location on the tekmar Connect mobile app will change together. All thermostats and controls on a tekmarNet system will also change together.

Display Menu

Description Range Access

TEMPERATURE UNITS

Select Fahrenheit or Celsius temperature units. Conditions: Always available.

SCREEN BRIGHTNESS

Select the screen brightness. Conditions: Always available.

CLEAN SCREEN

The Clean Screen timer locks the screen for 10 seconds allowing the user to wipe the screen with a moist cloth. Do not use solvents to clean the screen.

Conditions: Always available.

°F or°C

0 to 100%

Default = 75%

N/A

User

Installer

User

Installer

User

Installer

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Page 22

WiFi Menu

Before using the WiFi features of this product, you must accept the Terms of Use, as amended from time to time and available at WattsWater.com/Terms-of-Use. If you do not accept these terms, this product can still be used without WiFi features.

Description Range Access

WIFI

Enable or disable WiFi connectivity. The help screen displays the following information:

• IP Address

• Subnet Mask

• Gateway IP

• MAC Address

Conditions: Always available.

Off or On

User

Installer

NETWORK SSID

Select the WiFi network from the list. Conditions: WiFi is set to On.

ZIP/POSTAL CODE

Enter a US ZIP or Canadian postal code. The ZIP/Postal Code is used to provide the location for the weather information. The weather service is available in the USA and Canada only.

Conditions: WiFi is set to On.

TIME SOURCE

Select to set to the time automatically or manually. Conditions: WiFi is set to On.

Time Menu

Description Range Access

TIME SOURCE

Select to set to the time automatically or manually. Auto is only available when WiFi is set to On. Conditions: Always available.

SET TIME AND DATE

Conditions: Always available.

List of WiFi

Networks

US ZIP format

12345

Canada Postal

Code format

A1B2C3

Auto,

Manual

Auto,

Manual

User

Installer

User

Installer

User

Installer

User

Installer

• Press box field.

• Then adjust with arrow buttons.

TIME FORMAT

Select either 12 or 24 hour format. Conditions: Always available.

TIME ZONE

Select the location's time zone. Conditions: Available when Time Source is set to Manual.

DAYLIGHT SAVINGS

Set Daylight Savings to On to automatically adjust for time changes in the spring and fall. Conditions: Always available.

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N/A

12 hr,

24 hr

Default = 12 hr

Hawaii, Alaska,

Pacific, Mountain,

Central, Eastern,

Atlantic,

NFLD,

(Newfoundland)

Off or On

Default = On

User

Installer

User

Installer

User

Installer

User

Installer

Page 23

Energy Menu

View the snow melting system running hours in the past week.

View the snow melting system running hours in the past year.

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Page 24

Monitor Menu

Description Range Access

MELTING ENERGY

Records the amount of energy since the counter was last reset. Conditions: Available when Application Mode is set to Electric.

MELTING HOURS

Records the number of melting hours since the counter was last reset. Conditions: Always available.

HEAT HOURS

Records the number of hours the boiler fired or the electric cable heated since the counter was last reset.

Conditions: Available when Application Mode is Boiler, Boiler+Mix and Electric.

HEAT CYCLES

Records the number of cycles the boiler turned on or the electric cable heated since the counter was last reset.

Conditions: Available when Application Mode is Boiler, Boiler+Mix and Electric.

SYSTEM PUMP

Records the number of hours the system pump has operated since the counter was last reset.

Conditions: Available when Application Mode is not set to Electric.

SLAB SENSOR HIGH

Records the highest measured slab temperature since the counter was last reset. Conditions: Available when Snow/Ice Sensor is set to In-slab or Slab Sensor = On.

SLAB SENSOR LOW

Records the lowest measured slab temperature since the counter was last reset. Conditions: Available when Snow/Ice Sensor is set to In-slab or Slab Sensor = On.

0 to 999999 kWh

0 to 999999

hours

0 to 999999

hours

0 to 999999

cycles

0 to 999999

hours

-58 to 167°F

(-50.0 to 75.0°C)

-58 to 167°F

(-50.0 to 75.0°C)

User

Installer

User

Installer

User

Installer

OUTDOOR HIGH

Records the highest measured outdoor air temperature since the counter was last reset. Conditions: Always available.

OUTDOOR LOW

Records the lowest measured outdoor air temperature since the counter was last reset. Conditions: Always available.

BOILER HIGH

Records the highest measured boiler temperature since the counter was last reset. Conditions: Available when Application Mode is set to Boiler or Boiler+Mix.

BOILER LOW

Records the lowest measured boiler temperature since the counter was last reset. Conditions: Available when Application Mode is set to Boiler or Boiler+Mix.

MIX SUPPLY HIGH

Records the highest measured mix temperature since the counter was last reset. Conditions: Available when Application Mode is set to PWM Zone, Mixing or Boiler+Mix.

MIX SUPPLY LOW

Records the lowest measured mix temperature since the counter was last reset. Conditions: Available when Application Mode is set to PWM Zone, Mixing or Boiler+Mix.

RESET ALL?

Resets all the counters in the monitor menu at once. Conditions: Always available.

-67 to 149°F

(-55.0 to 65.0°C)

-67 to 149°F

(-55.0 to 65.0°C)

-31 to 266°F

(-35.0 to 130.0°C)

-31 to 266°F

(-35.0 to 130.0°C)

-31 to 266°F

(-35.0 to 130.0°C)

-31 to 266°F

(-35.0 to 130.0°C)

N/A

Installer

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Page 25

Setup – System Setup Menu

Description Range Access

APPLICATION MODE

The Application Mode selects the operation of the mechanical equipment. Application Mode “PWM Zone” operates a pump or zone valve to provide heat to the snow melting

system.

Application Mode “Mixing” operates a mixing valve or a variable speed injection mixing pump to heat the snow melting system. The heat source is enabled.

Application Mode “Boiler” operates a modulating, 1-stage or 2-stage boiler to heat the snow melting system.

PWM Zone

Mixing

Boiler

Boiler+Mix

Electric

Installer

Application Mode “Boiler+Mix" operates a mixing valve or a variable speed injection mixing pump and controls the boiler temperature to heat the snow melting system.

Application Mode “Electric” uses electric cables to heat the snow melting system. Conditions: Always available.

SNOW/ICE SENSOR

Select if a Snow/Ice Sensor 090 or 094 "Inslab", or a Snow Sensor 095 "Aerial" is installed. Conditions: Always available.

SLAB SENSOR

Select if a Slab Sensor 072 or 073 is installed. Conditions: Available when snow/ice sensor is set to None or Aerial.

SLAB PROTECTION

Select if a concrete slab should be protected from large temperature differentials to avoid cracking the concrete due to high tensile stress. This limits the heat-up rate of the concrete slab. Slab protection is not required for installations with brick pavers, asphalt or other non-concrete materials.

Conditions: Available when 1) Application mode is set to Mixing, Boiler or Boiler+Mix, 2) Snow/ice sensor is set to Inslab or slab sensor is set to On.

ECONOM ELT

EconoMelt allows the user to mechanically remove snow then manually start the system to melt the remaining thin snow layer or ice with an automatic stop when the sensor is dry.

Conditions: Available when snow/ice sensor is set to In-slab.

Default =

Boiler+Mix

None,

In-slab, Aerial

Default = In-slab

Off or On

Default = Off

Off or On

Default = On

Off or On

Default = Off

Installer

MAX MELT DAYS

Limit the amount of melting run time after snow is automatically detected by a Snow/Ice Sensor 090 or 094, or a Snow Sensor 095.

Conditions: Always available.

OUTDOOR SENSOR

Select if the outdoor air temperature is measured by the control, by a tekmarNet system or by the Internet weather service.

Conditions: Always available.

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Off, 0.5 to 7 days

Default = 3 days

Control,

tekmarNet,

Internet

Default = Control

Installer

Page 26

Setup – Boiler Setup Menu

Description Range Access

BOILER TYPE

Select the type of boiler operated by the control. Mod = Modulating boiler with an adjustable firing rate using a 0-10V (dc) or 4-20 mA signal. 1 Stage = Single one-stage on/off boiler. 2 Stage = Single two-stage on/off boiler. EMS = Modulating boiler with an adjustable target temperature using a 0-10V (dc) or 4-20 mA signal. Enable = Enable for Application Mode PWM Zone or Mix. Control = Call for heat to tekmarNet control. Conditions: Always available.

Mod, 1 Stage, 2 Stage,

EMS,

Enable,

Control

Default = Mod

Installer

BOILER MODULATION TYPE

Select between a 0-10 V (dc) or 4-20 mA signal to control the modulating boiler. Conditions: Available when 1) Application Mode is set to Boiler or Boiler+Mix, and 2) Boiler Type

is set to Mod or EMS.

BOILER MIN MODULATION

Set the boiler minimum modulation of the boiler burner. Conditions: Available when 1) Application Mode is set to Boiler or Boiler+Mix, and 2) Boiler Type

is set to Mod.

BOILER MODULATION DELAY

Set the time the boiler operates at the minimum firing rate before allowing the firing rate to change. This allows the boiler ignition system to establish a flame.

Conditions: Available when 1) Application Mode is set to Boiler or Boiler+Mix, and 2) Boiler Type is set to Mod.

BOILER MOTOR SPEED

Set the time required for the modulating burner actuating motor to fully open the gas valve or ramp the burner fan speed from off to full speed. Set to 30 seconds unless otherwise recommended by the boiler manufacturer.

Conditions: Available when 1) Application Mode is set to Boiler or Boiler+Mix, and 2) Boiler Type is set to Mod.

BOILER DIFFERENTIAL

The temperature differential that the control uses to cycle the boiler on and off. The differential is split evenly half above and half below of the boiler target.

Conditions: Available when Application Mode is set to Boiler or Boiler+Mix.

0-10 V

4-20 mA

Default: 0-10 V

0 to 50%

Default = 0%

Off, 10 to 180

seconds

Default = Off

30 to 230

seconds

Default = 30

Auto, 2 to 42°F

(1.0 to 23.5°C)

Default = Auto

Installer

BOILER MINIMUM

When Application Mode is set to Mixing or Boiler+Mix: The boiler return minimum protects both condensing and non-condensing boilers from cold

return water temperatures. The mixing valve is closed or the variable speed injection mixing is reduced when the boiler return temperature falls below this setting.

When Application Mode is set to Boiler: The minimum allowed boiler target temperature. Check the boiler manufacturer’s manual

for recommended return water temperatures.

EMS SIGNAL MINIMUM

The starting voltage for the EMS boiler signal. This voltage corresponds to the EMS Low Temperature setting. Check the boiler manufacturer’s manual for the starting voltage for the EMS signal range.

Conditions: Available when 1) Boiler Type is set to EMS, and 2) Boiler Modulation Type is set to 0-10 V.

EMS LOW TEMPERATURE

The EMS boiler target temperature that corresponds to the EMS Signal Minimum voltage or 4 mA. Check the boiler manufacturer’s manual for the minimum EMS target temperature.

Conditions: Available when Boiler Type is set to EMS.

EMS HIGH TEMPERATURE

The EMS boiler target temperature that corresponds to 10 V (dc) or 20 mA. Check the boiler manufacturer’s manual for the maximum EMS target temperature.

Conditions: Available when Boiler Type is set to EMS.

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Off, 50 to 180°F

(10.0 to 82.0°C)

Default = Off

0.5 to 10 Vdc

Default = 0.5 Vdc

50 to 210°F

(10 to 99.0°C)

Default = 50°F

(10.0°C)

50 to 210°F (10.0 to 99.0°C) Default = 210°F

(99.0°C)

Installer

Page 27

Setup – Mixing Setup Menu

Description Range Access

MIXING TYPE

Select the mixing output type. Floating = Floating action mixing output to operate a mixing valve. Injection = Injection mixing output to operate a wet-rotor, impedance protected pump with a current

less than 2.4 A. 0-10 V = Analog mixing output provides a 0-10 V (dc) signal. 4-20 mA = Analog mixing output provides a 4-20 mA signal. Conditions: Available when Application Mode is set to Mixing or Boiler+Mix.

Floating,

Injection,

0-10 V,

4-20 mA

Default = Floating

Installer

MIX MOTOR SPEED

Set the time that the mixing actuating motor requires to operate from fully closed to fully open. Check the mixing actuator motor instruction manual for the motor speed time.

Conditions: Available when 1) Application Mode is set to Mixing or Boiler+Mix, and 2) Mixing Type is set to Floating, 0-10 V, or 4-20 mA.

MIX MAXIMUM

Set the maximum operating temperature of the system supply water temperature. Conditions: Available when Application Mode is set to Mixing or Boiler+Mix.

30 to 230

seconds

Default = 105

seconds

80 to 180°F, Off

(26.5 to 82.5°C)

Default = 140°F

(60.0°C)

Installer

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Page 28

tekmarNet Menu

Description Range Access

ADDRESSING

The tekmarNet address of this control. Select between automatic and manual addressing. To manually set the address, use the up or down buttons.