THERMO 2000 VOLTMAX 45, VOLTMAX 30, VOLTMAX 36, VOLTMAX 41, VOLTMAX 50 Installation And Operation Manual

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VOLTMAX Electric Boiler

Model: 22.5 kW to 180 kW:

208/240 Volts (single-phase) and

208/240/480

600 Volts (3-phase)

INSTALLATION AND OPERATION MANUAL

Your

VOLTMAX Electric Boiler was carefully assembled and checked at the factory to ensure its pro

per

functioning for many years.

The following information and safety measures are provided to

enable

proper installation, operation, and maintenance of this product.

It is imperative that all persons who are expected to install, operate or adjust this boi

ler

should read

these instructions carefully.

Any questions regarding the operation, maintenance, service or warranty of this electric boiler should be directed to the supplier.

When all installation steps have been completed, keep this installation manu

al in a safe place (near

the

boiler) for future reference.

THERMO 2000 INC.

Printed in Canada

Revised: May 2017

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 2.

TABLE OF CONTENTS

SECTION 1 : TECHNICAL SPECIFICATIONS ............................................................................... 4

SECTION 2 : INTRODUCTION ....................................................................................................... 9

2.1 LOCAL INSTALLATION REGULATIONS ............................................................................. 9

2.2 CORROSIVE ENVIRONMENT.............................................................................................. 9

2.3 INSPECTION UPON RECEPTION ....................................................................................... 9

2.4 TO BE CHECKED ................................................................................................................. 9

SECTION 3 : INSTALLATION....................................................................................................... 10

3.1 SAFETY MEASURES .......................................................................................................... 10

3.2 LOCATION........................................................................................................................... 10

3.3 CLEARANCES .................................................................................................................... 10

3.4 PIPING INSTALLATION ...................................................................................................... 10

3.4.2 Drain faucet .................................................................................................................. 13

3.4.3 Pressure loss ................................................................................................................ 14

3.5 ELECTRICAL CONNECTIONS ........................................................................................... 20

3.5.1 Main electrical supply ................................................................................................... 20

3.5.2 Pump supply ................................................................................................................. 20

3.5.3 Connection of external signals to the controller ........................................................... 20

SECTION 4 : CONTROLLER OPERATION ................................................................................. 34

4.1 USER INTERFACE ............................................................................................................. 34

4.1.1 Symbol description ....................................................................................................... 34

4.1.2 Control panel ................................................................................................................ 35

4.1.3 Navigation and adjustements ....................................................................................... 35

4.1.4 Main menu navigation .................................................................................................. 36

4.1.5 Navigation in boiler setting ........................................................................................... 37

4.2 MAIN MENU ........................................................................................................................ 39

4.2.1 Boiler status .................................................................................................................. 39

4.2.2 Boiler configuration ....................................................................................................... 39

4.2.3 User setting .................................................................................................................. 39

4.2.4 Clock setting ................................................................................................................. 40

4.2.5 Consumption ................................................................................................................ 40

4.3 BOILER SETTINGS ............................................................................................................. 40

4.3.1 Heating mode W1 ......................................................................................................... 41

4.3.2 Heating mode W2/DHW ............................................................................................... 41

4.3.3 Pump setting................................................................................................................. 41

4.3.4 Capacity limiting ........................................................................................................... 42

4.3.5 Auxiliary boiler .............................................................................................................. 42

4.3.6 Limit setting .................................................................................................................. 43

4.3.7 Alarm ............................................................................................................................ 44

4.3.8 Communication............................................................................................................. 44

4.3.9 Occupation ................................................................................................................... 45

4.3.10 BOOST Mode ............................................................................................................. 46

4.3.11 Warm weather shutdown ............................................................................................ 46

4.3.12 Change password ...................................................................................................... 46

4.4 INTERNET ........................................................................................................................... 46

4.4.1 Website ......................................................................................................................... 47

4.4.2 Email ............................................................................................................................. 47

4.5 BOILER STATUS DISPLAY SETTINGS ............................................................................. 48

4.6 HEATING MODE W1 SETTINGS ....................................................................................... 50

4.6.1 FIXED MODE ............................................................................................................... 50

4.6.2 OUTDOOR RESET MODE .......................................................................................... 51

4.6.3 Mode : DDC 0-10VDC .................................................................................................. 52

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 3.

4.7 W2 MODE SET-POINT TEMPERATURE SETTINGS ........................................................ 53

4.7.1 W2 MODE .................................................................................................................... 53

4.7.2 DHW MODE ................................................................................................................. 53

4.8 PUMP CONFIGURATION MENU SETTINGS .................................................................... 53

4.8.1 PUMP 1 ........................................................................................................................ 53

4.8.2 PUMP 2 ........................................................................................................................ 53

SPECIFIC PARAMETERS FOR THE CAPACITY LIMITING MENU .................................... 54

4.8.3 MANUAL MODE ........................................................................................................... 54

4.8.4 MODE: 0-10 VDC ......................................................................................................... 54

4.9 POWER LIMITATION MENU SETTINGS ........................................................................... 55

4.9.1 MANUAL MODE ........................................................................................................... 55

4.9.2 0-10 VDC MODE .......................................................................................................... 55

4.9.3 T. ext MODE ................................................................................................................. 56

4.9.4 Schedule MODE ........................................................................................................... 57

4.10 AUXILIARY BOILER SETTINGS ....................................................................................... 58

4.10.1 BACKUP MODE ......................................................................................................... 58

4.10.2 EXTERNAL CONTACT MODE .................................................................................. 59

4.10.3 ManuAl MODE ........................................................................................................... 59

4.10.4 Bi-Energy MODE ........................................................................................................ 60

4.11 LIMIT CONFIGURATION MENU SETTINGS .................................................................... 61

4.12 CONFIG. ALARM MENU SETTINGS ................................................................................ 62

4.13 OCCUPATION MENU SETTINGS .................................................................................... 62

4.14 BOOST MENU SETTINGS................................................................................................ 63

4.15 WARM WEATHER SHUTDOWN MENU SETTINGS ....................................................... 63

SECTION 5 : BOILER START UP ................................................................................................ 64

5.1 FILLING THE BOILER ......................................................................................................... 64

5.2 ADJUSTEMENT OF THE CONTROLLER OPERATING PARAMETERS .......................... 64

5.3 STARTUP PROCEDURE .................................................................................................... 64

SECTION 6 : TROUBLESHOOTING ............................................................................................ 66

6.1 WARNING LIGHTS ............................................................................................................. 66

6.2 OPERATING PROBLEM IDENTIFICATION ....................................................................... 66

6.2.1 External HL / LWCO ............................................................................................... 66

6.2.2 Sensor ( SE ) .......................................................................................................... 66

6.2.3 Low limit ( LL ) ........................................................................................................ 66

6.2.4 Flow ( F ) ................................................................................................................ 66

6.2.5 Current ( A ) ............................................................................................................ 66

6.2.6 HL temperature ( HL ) ............................................................................................ 67

6.2.7 Low pressure ( P ) .................................................................................................. 67

6.2.8 High pressure ( P ) ................................................................................................. 67

6.2.9 Lock out .................................................................................................................. 67

SECTION 7 : MAINTENANCE ...................................................................................................... 68

7.1 BOILER WATER PIPING .................................................................................................... 68

7.2 PRESSURE RELIEF VALVE ............................................................................................... 68

7.3 AIR PURGE ......................................................................................................................... 68

7.4 ELECTRICAL INSPECTION................................................................................................ 68

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 4.

SECTION 1 : TECHNICAL SPECIFICATIONS

Table 1: VOLTMAX 208 VAC / 60 Hz / Single-Phase1

Capacity

STG

Series

SCR Series

Model

BTU/h

Amp

Electrical

element(s) 240 V

Stage Relay

SCR

Stage

VOLTMAX 23

22,5

76 770

108,4

6 x 5 kW

3 x 7,5 kW

2 x 7,5 kW

1 x 7,5 kW

VOLTMAX 27

92 124

130,1

6 x 6 kW

3 x 9 kW

2 x 9 kW

1 x 9 kW

VOLTMAX 30

102 360

144,5

8 x 5 kW

4 x 7,5 kW

3 x 7,5 kW

1 x 7,5 kW

VOLTMAX 36

122 832

173,4

8 x 6 kW

4 x 9 kW

3 x 9 kW

1 x 9 kW

VOLTMAX 41

139 892

198,7

5 x 5 kW + 5 x 6 kW

5 x 8,25 kW

4 x 8,25 kW

1 x 8,25 kW

VOLTMAX 45

153 540

216,8

10 x 6 kW

5 x 9 kW

4 x 9 kW

1 x 9 kW

VOLTMAX 50

49,5

168 894

238,4

6 x 5 kW + 6 x 6 kW

6 x 8,25 kW

5 x 8,25 kW

1 x 8,25 kW

VOLTMAX 54

184 248

260,1

12 x 6 kW

6 x 9 kW

5 x 9 kW

1 x 9 kW

Electrical supply 208 V - 1 phase (L1-L2) with 2 conductors 90°C with a ground.

Table 2: VOLTMAX 240 VAC / 60 Hz / 1 Phase1

Capacity

STG

Series

SCR Series

Model

BTU/h

Amps

Electrical

element(s) 240 V

Stage Relay

SCR

Stage

VOLTMAX 30

102 360

125

6 x 5 kW

3 x 10 kW

2 x 10 kW

1 x 10 kW

VOLTMAX 36

122 832

150

6 x 6 kW

3 x 12 kW

2 x 12 kW

1 x 12 kW

VOLTMAX 40

136 480

166,7

8 x 5 kW

4 x 10 kW

3 x 10 kW

1 x 10 kW

VOLTMAX 48

163 776

200

8 x 6 kW

4 x 12 kW

3 x 12 kW

1 x 12 kW

VOLTMAX 55

187 660

229,2

5 x 5 kW + 5 x 6 kW

5 x 11 kW

4 x 11 kW

1 x 11 kW

VOLTMAX 60

204 720

250

10 x 6 kW

5 x 12 kW

4 x 12 kW

1 x 12 kW

VOLTMAX 66

225 192

275

6 x 5 kW + 6 x 6 kW

6 x 11 kW

5 x 11 kW

1 x 11 kW

VOLTMAX 72

245 664

300

12 x 6 kW

6 x 12 kW

5 x 12 kW

1 x 12 kW

Electrical supply 240 V - 1 phase (L1-L2) with 2 conductors 90°C with a ground.

Table 3 : VOLTMAX 208 VAC / 60 Hz / 1 Phase1

Puissance

STG

Series

SCR Series

Model

BTU/h

Amps

Electrical

element(s) 240 V

Stage Relay

SCR

Stage

VOLTMAX 30

102 360

125

6 x 5 kW

3 x 10 kW

2 x 10 kW

1 x 10 kW

VOLTMAX 36

122 832

150

6 x 6 kW

3 x 12 kW

2 x 12 kW

1 x 12 kW

VOLTMAX 40

136 480

166,7

8 x 5 kW

4 x 10 kW

3 x 10 kW

1 x 10 kW

VOLTMAX 48

163 776

200

8 x 6 kW

4 x 12 kW

3 x 12 kW

1 x 12 kW

VOLTMAX 55

187 660

229,2

5 x 5 kW + 5 x 6 kW

5 x 11 kW

4 x 11 kW

1 x 11 kW

VOLTMAX 60

204 720

250

10 x 6 kW

5 x 12 kW

4 x 12 kW

1 x 12 kW

VOLTMAX 66

225 192

275

6 x 5 kW + 6 x 6 kW

6 x 11 kW

5 x 11 kW

1 x 11 kW

VOLTMAX 72

245 664

300

12 x 6 kW

6 x 12 kW

5 x 12 kW

1 x 12 kW

Electrical supply 208 V - 1 phase (L1-L2) with 2 conductors 90°C with a ground.

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 5.

Table 4 : VOLTMAX 240 VAC / 60 Hz / 3 Phases

Capacity

STG

Series

SCR Series

Model

BTU/h

Amps

Electrical

element(s) 240 V

Stage Relay

Model kW

VOLTMAX 30

102 360

6 x 5 kW

2 x 15 kW

1 x 15 kW

VOLTMAX 36

122 832

86,6

6 x 6 kW

2 x 18 kW

1 x 18 kW

VOLTMAX 45

153 540

108,3

9 x 5 kW

3 x 15 kW

2 x 15 kW

1 x 15 kW

VOLTMAX 54

184 248

129,9

9 x 6 kW

3 x 18 kW

2 x 18 kW

1 x 18 kW

VOLTMAX 60

204 720

144,3

12 x 5 kW

4 x 15 kW

3 x 15 kW

1 x 15 kW

VOLTMAX 72

245 664

173,2

12 x 6 kW

4 x 18 kW

3 x 18 kW

1 x 18 kW

VOLTMAX 75

255 900

180,4

15 x 5 kW

5 x 15 kW

4 x 15 kW

1 x 15 kW

Electrical supply 240 V - 1 phase (L1-L2) with 2 conductors 90°C with a ground.

Table 5 : VOLTMAX 480 VAC / 60 Hz / 3 Phases

Capacity

STG Series

SCR Series

Model

BTU/h

Amps

Electrical

element(s)

240 V

Stage Relay

Model

VOLTMAX 30

102 360

36,1

6 x 5 kW

2 x 15 kW

1 x 15 kW

VOLTMAX 36

122 832

43,3

6 x 6 kW

2 x 18 kW

1 x 18 kW

VOLTMAX 45

153 540

54,1

9 x 5 kW

3 x 15 kW

2 x 15 kW

1 x 15 kW

VOLTMAX 54

184 248

9 x 6 kW

3 x 18 kW

2 x 18 kW

1 x 18 kW

VOLTMAX 60

204 720

72,2

12 x 5 kW

4 x 15 kW

3 x 15 kW

1 x 18 kW

VOLTMAX 72

245 664

86,6

12 x 6 kW

4 x 18 kW

3 x 18 kW

1 x 18 kW

VOLTMAX 75

255 900

90,2

15 x 5 kW

5 x 15 kW

4 x 15 kW

1 x 15 kW

VOLTMAX 90

307 80

108,3

15 x 6 kW

5 x 18 kW

4 x 18 kW

1 x 18 kW

VOLTMAX 99

337 788

119,1

9 x 5 kW + 9 x 6 kW

3 x 33 kW

2 x 33 kW

1 x 33 kW

VOLTMAX 108

108

368 496

129,9

18 x 6 kW

3 x 36 kW

2 x 36 kW

1 x 36 kW

VOLTMAX 120

120

409 440

144,3

24 x 5 kW

4 x 30 kW

3 x 30 kW

1 x 30 kW

VOLTMAX 132

132

450 384

158,8

12 x 5 kW + 12 x 6 kW

4 x 33 kW

3 x 33 kW

1 x 33 kW

VOLTMAX 144

144

491 328

173,2

24 x 6 kW

4 x 36 kW

3 x 36 kW

1 x 36 kW

VOLTMAX 150

150

511 800

180,4

30 x 5 kW

5 x 30 kW

4 x 30 kW

1 x 30 kW

VOLTMAX 165

165

562 980

198,5

15 x 5 kW + 15 x 6 kW

5 x 33 kW

4 x 33 kW

1 x 33 kW

VOLTMAX 180

180

614 160

216,5

30 x 6 kW

5 x 36 kW

4 x 36 kW

1 x 36 kW

Electrical supply 480 V - 1 phase (L1-L2-L3) with 3 conductors 90°C with a ground.

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 6.

Table 6 : VOLTMAX 600 VAC / 60 Hz / 3 Phases1

Capacity

STG Series

SCR Series

Model

BTU/h

Amps

Electrical

element(s)

240 V

Stage Relay

Model

VOLTMAX 30

102 360

28,9

6 x 5 kW

2 x 15 kW

1 x 15 kW

VOLTMAX 36

122 832

34,6

6 x 6 kW

2 x 18 kW

1 x 18 kW

VOLTMAX 45

153 540

43,3

9 x 5 kW

3 x 15 kW

2 x 15 kW

1 x 15 kW

VOLTMAX 54

184 248

9 x 6 kW

3 x 18 kW

2 x 18 kW

1 x 18 kW

VOLTMAX 60

204 720

57,7

12 x 5 kW

4 x 15 kW

3 x 15 kW

1 x 18 kW

VOLTMAX 72

245 664

69,3

12 x 6 kW

4 x 18 kW

3 x 18 kW

1 x 18 kW

VOLTMAX 75

255 900

72,2

15 x 5 kW

5 x 15 kW

4 x 15 kW

1 x 15 kW

VOLTMAX 90

307 80

86,6

15 x 6 kW

5 x 18 kW

4 x 18 kW

1 x 18 kW

VOLTMAX 99

337 788

95,3

9 x 5 kW +

9 x 6 kW

3 x 33 kW

2 x 33 kW

1 x 33 kW

VOLTMAX 108

108

368 496

103,9

18 x 6 kW

3 x 36 kW

2 x 36 kW

1 x 36 kW

VOLTMAX 120

120

409 440

115,5

24 x 5 kW

4 x 30 kW

3 x 30 kW

1 x 30 kW

VOLTMAX 132

132

450 384

127

12 x 5 kW +

12 x 6 kW

4 x 33 kW

3 x 33 kW

1 x 33 kW

VOLTMAX 144

144

491 328

138,6

24 x 6 kW

4 x 36 kW

3 x 36 kW

1 x 36 kW

VOLTMAX 150

150

511 800

144,3

30 x 5 kW

5 x 30 kW

4 x 30 kW

1 x 30 kW

VOLTMAX 165

165

562 980

158,8

15 x 5 kW +

15 x 6 kW

5 x 33 kW

4 x 33 kW

1 x 33 kW

VOLTMAX 180

180

614 160

173,2

30 x 6 kW

5 x 36 kW

4 x 36 kW

1 x 36 kW

Electrical supply 600 V - 1 phase (L1-L2-L3) with 3 conductors 90°C with a ground.

Tableau 7 : Maximal service pressure

VOLTMAX

90 kW and less

More than 90 kW

Maximum operating pressure

30 PSI

60 PSI

Optional maximum operating pressure

70 PSI*

125 PSI

* Model from 23 to 90 kW are available at a maximum operating pressure of 125 PSI, but size of the unit will be the same as model of more than 90 kW.

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 7.

BOILER DIMENSIONS AND CHARACTERISTIC: MODELS 90KW OR LESS

* Return sensor available with the " SCR SERIES " configuration. ** Optional disconnect switch available on " THREE-PHASE " models. *** Solid state SCR relay available with the " SCR SERIES " configuration. **** Low water cut-off is optional.

BOILER CONNECTIONS

Boiler outlet

1 1/2" NPT M

Boiler inlet

1 1/2" NPT M

Pressure relief valve

3/4" NPT F

Drain valve

3/4" NPT F

Access to the return sensor

1/2" NPT F

MIN. CLEARANCES FOR INSTALLATION &

MAINTENANCE

Left and Right sides

3"/ 76mm

Rear

3"/ 76mm

Front

24" / 610mm

Bottom

0" / 0mm

Top

32" / 813mm

GENERAL INFORMATIONS

Weight

310lbs / 141kg

Water Volume

11 Us gal. / 41.6 liters

Max. operating

pressure

STANDARD: 30psi

OPTION: 70 PSI *

*Available at 125PSI (See Shop Drawing 99-180KW)

COMPONENTS IDENTIFICATION

Electrical main supply

Boiler controller

"On/Off" switch

D**

Disconnect switch & rotary handle

Fuses for controls

F***

Solid state SCR relay

G****

Low water cut-off, test button and indicator lights

Electrical control access door

Door handle for electric access with lock

Electrical control wires access holes

Access door power circuit

Access cover to Heating elements

Heating elements

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 8.

BOILER DIMENSIONS AND CHARACTERISTIC: MODELS 90KW TO 180KW

* Return sensor available with the " SCR Series " configuration. ** Optional disconnect switch available on " THREE-PHASE" models. *** Solid state SCR relay available with the " SCR Series " configuration. **** Low water cut-off is standard for models more than 117kw.

BOILER CONNECTIONS

Boiler outlet

1 1/2" NPT M

Boiler inlet

1 1/2" NPT M

Pressure relief valve

3/4" NPT F

Drain valve

3/4" NPT F

Access to the return sensor

1/2" NPT F

MIN. CLEARANCES FOR INSTALLATION &

MAINTENANCE

Left and Right sides

3"/ 76mm

Rear

3"/ 76mm

Front

24" / 610mm

Bottom

0" / 0mm

Top

32" / 813mm

GENERAL INFORMATIONS

Weight

550lbs / 250kg

Water Volume

30 gal. Us/ 113.5 liters

Max. operating

pressure

STANDARD: 60psi

OPTION: 125 PSI

COMPONENTS IDENTIFICATION

Electrical main supply

Boiler controller

"On/Off" switch

D**

Disconnect switch & rotary handle

Fuses for controls

F***

Solid state SCR relay

G****

Low water cut-off, test button and indicator lights

Electrical control access door

Door handle for electric access with lock

Electrical control wires access holes

Access door power circuit

Access cover to Heating elements

Heating elements

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 9.

General Safety Precautions

Be sure to read and understand the entire Installation & operation manual before attempting to install or to operate this water heater. Pay attention to the following General Safety Precautions. Failure to follow these warnings could cause property damage, bodily injury or death. Should you have any problems understanding the instructions in this manual, STOP, and get help from a qualified installer or technician

SECTION 2 : INTRODUCTION

These important safeguards and instruction appearing in this manual are not meant to cover all possible conditions and situations that may occur. Common sense, caution and care are factors that cannot be built into every product. These factors must be supplied by the person(s) caring for and operating the unit.

2.1 LOCAL INSTALLATION REGULATIONS

This electric boiler must be installed in accordance with these instructions and in conformity with local codes, or in the absence of local codes, with the National Plumbing Code and the National Electric Code, current edition. In any case where instructions in this manual differ from local or national codes, the local or national codes take precedence.

2.2 CORROSIVE ENVIRONMENT

The electric boiler must not be installed near an air duct supplying corrosive atmosphere or with high humidity content. When a boiler defect is caused by such conditions, the warranty will not apply.

2.3 INSPECTION UPON RECEPTION

Inspect the electric boiler for possible shipping

damage. The manufacturer’s responsibility

ceases upon delivery of goods to the carrier in good condition. The Consignee must file any claims for damage, shortage in shipments, or non-delivery immediately against the carrier.

2.4 TO BE CHECKED

Please refer to the rating plate on the unit to ensure that you have the correct model and voltage in hand.

List of components shipped with the unit:

• Pressure relief valve set at

30 PSI.

• Drain valve.

• Temperature & pressure indicator

• Outdoor temperature sensor

• Installation and operating manual

The electric boiler should not be installed where it may damage the adjacent structures or lower floors in the event of leakage of the tank or connections. If this cannot be avoided, install a nonflammable tray or bowl under the boiler to collect and drain water from leaks.

NOTE: Any tray or cuvette MUST conform to local codes.

AVERTISSEMENT

WARNING

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 10.

SECTION 3 : INSTALLATION

The manufacturer’s warranty does not cover any damage or defect caused by installation, or attachment, or use of any special attachment other than those authorized by the manufacturer into, onto, or in conjunction with the water heater. The use of such unauthorized devices may shorten the life of the boiler and may endanger life and property. The manufacturer disclaims any responsibility for such loss or injury resulting from the use of such unauthorized devices

3.1 SAFETY MEASURES

Any commercial installation will be equipped with a safety valve that limits the maximum working pressure to the maximum design pressure of the tank. The maximum operating pressure of the VOLTMAX Boiler with a power of 90kW and less (5 elements) is 30 psi or 70 psi, depending on the options chosen. The maximum operating pressure of the VOLTMAX boiler with a power of more than 90kW (10 elements) is 60 psi or 125 psi, depending on the options selected. See boiler data sheet for maximum operating pressure.

The boiler is equipped with an automatic high limit temperature control set at 210°F (99°C) and a second manual high limit temperature settable.

This electric boiler is designed to operate at a maximum operating temperature of 200 ° F (93 ° C). The boiler is designed for use in a hot water heating system only.

The heat transfer fluid must be water or an antifreeze water / propylene glycol solution or an antifreeze water / ethylene glycol solution specially designed for heating systems. The maximum concentration of solution must be a maximum of 50%.

3.2 LOCATION

The electric boiler should be installed in a clean, dry location. Long hot water lines should be insulated to conserve water and energy. The electric boiler and water lines should be protected from exposure to freezing temperature.

The boiler can be mounted vertically or horizontally directly on a solid surface. Vertical supports are provided and allow installation on the floor; No wall bracket is included with the equipment.

The electric boiler must be located or protected to avoid risk of physical damage, such as from moving vehicles, flooding, etc.

The location must have sufficient ventilation to maintain an ambient temperature not exceeding 90°F (32°C).

3.3 CLEARANCES

For adequate inspection and servicing the following minimum clearance is necessary:

Table 8 : Boiler Clearances

Sides**

3 inches / 76 mm

Bottom

0 inches / 0 mm

Top*

32 inches / 813 mm

Front

24 inches / 610 mm

Back

3 inches / 76 mm

* A minimum clearance of 32 inches. For units equipped with 18 kW elements (25 in. For 15 kW elements) is required for possible replacement of heating elements.

** The left side of the control panel, where the boiler ON / OFF switch is located, must remain visible after installation. Otherwise, a label indicating its location must be affixed to the control panel indicating its position.

3.4 PIPING INSTALLATION

The location of the inlet and outlet piping shall conform to the various configurations shown in Figure 1. You will find typical connection diagrams to the Figure 3, the Figure 4 and the Figure 5.

MISE EN GARDE

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 11.

Figure 1 : Possible pipe flow configurations

3.4.1.1 Boiler piping connection

The boiler is equipped with two fittings on each side of the unit. One of the bottom connections must be used for the heating return (inlet) and one of the top connections must be used for supplying the heating system (outlet). The outlet and inlet size are 1½ "NPTM threaded steel pipes, for the VOLTMAX with a power of 90kW and less (5 elements) and 2½ "NPTM threaded steel pipes for the VOLTMAX with a power of More than 90kW (10 elements).

Installation of plugs on the inlet and exhaust ducts is recommended to facilitate the disconnection and maintenance of the boiler.

When connecting different types of pipes (galvanized steel and copper), use dielectric joints (insulation) to protect the boiler and piping.

Use only new and clean pipes as piping connection to the boiler. Local codes or regulations may dictate the exact type of material to be used.

Insulate all piping containing hot water, especially in an unheated environment.

Install faucets for easy maintenance.

Install a thermometer on the inlet and outlet duct(s).

Close the unused openings on the boiler. Do not block the safety valve, this may cause loss, damage or injury.

3.4.1.2 Auxiliary boiler piping connection

When an auxiliary boiler used as back up is twinned to the DTH Ultra boiler to act as a back-

up controlled by the DTH Ultra, the auxiliary boiler shall preferably be installed downstream of the electric boiler as shown on Figure 5.

3.4.1.3 Safety valve

The installation of a safety valve is an integral

part of the boiler’s installation. The trigger point of

the valve must not exceed the design pressure of the boiler as indicated on its registration and identification plate. The valve must comply with the ASME Boiler and Pressure Vessel Code and limit the boiler maximum operating pressure. The safety valve is a security component, not a control component.

The capacity of the safety valve expressed in BTU / hour must equal or exceed the rating on the nameplate of the boiler (s).

Connect the exhaust of the safety valve to a drain line. The lower end of this conduit shall be at least 6" (15 cm) from the floor drain away from any electrical component. The drain line must be directed downwards from the exhaust of the safety valve to ensure complete drainage by gravity. The diameter of the drainpipe must not be less than that of the exhaust of the valve. The end of the conduit must not be threaded or hidden and must be protected from freezing. No valves, valves or valves shall be installed on the pipe. The installation of the safety valves is governed by the local code.

3.4.1.4 System pressure control and expansion tank

Pressure control devices within the system ensure that each component operates within minimum and maximum allowable pressures and maintain minimum pressure for all normal operating temperatures. They also allow air

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 12.

bleeding, prevent cavitation at the pump inlet and prevent water from boiling within the system; all this is accomplished with minimal addition of new water.

The increase in boiler water volume resulting from higher temperature is stored in the expansion tank during periods of high operating temperature and is returned to the system when the temperature decreases.

The expansion tank must be able to store the required volume of boiler water during maximum design operating temperature without exceeding the maximum allowable operating pressure, and to maintain the required minimum pressure when the system is cold. Contact your installing contractor, plumbing supply house, or local plumbing inspector for assistance. The point where the expansion tank is connected should be carefully selected to avoid the possibility that normal operation of automatic check or manual valves will isolate the tank from a hot boiler or any part of the system.

The expansion tank should preferably be located on the suction or intake side of the pump.

3.4.1.5 Water pressure makeup regulator

Make-up systems must be employed as required by codes. An automatic fill valve (automatic pressure regulator) must be used with a backflow preventer as required, to maintain minimum system pressure by supplying water to make up for leakage.

3.4.1.6 Air bleeder

The air contained in the heated water must be removed from the system to prevent corrosion

Installation of manual or automatic air vents is required to eliminate all air from the boiler and the heating distribution system.

The main air eliminator must be installed near the outlet of the boiler on the highest point of the main supply piping. It is imperative to ensure that all air possibly located in the boiler be eliminated at all time.

Regularly purge air from the pipes and beware that the heated water does not cause injury or damage. If the boiler is located at a location higher than the heat distribution system such as a heated floor, an automatic air eliminator should be installed close to the boiler outlet.

3.4.1.7 Circulating pump

The pump can be located either just upstream or just downstream from the boiler. On installation where the operating pressure is high, the preferred location of the circulator pump is upstream of the boiler in such a way as to lower the pressure on the boiler when the pump will be in operation. The pump capacity required is determined in relation to the capacity of the boiler installed and the type of heating distribution system on which it will be connected.

They are generally designed for an operation at a differential of temperature (Delta T0) of 10 to 20F between the supply and return temperature to the boiler.

Use the following equation to determine the required water flow.

Pump flow rate = Boiler power ÷ Delta T ÷ 500

· Pump flow rate is expressed in US gallons per minute or GPM.

· The Boiler output (in net BTU per hour) is the maximum amount of heat to be transferred through the heating loop to meet the heating load.

· Delta T: The boiler water temperature drop

For example, an electric boiler rated at 180KW has an output capacity of 614 160 BTU per hour. The system is designed for a temperature drop of 20°F.

Required pump flow rate = 614,160 ¸ 20 ¸ 500 = 61,4 GPM

For example, an 180kW electric boiler has a power of 614,160 BTU/h. The system is designed for a drop-in temperature (Delta T) of 20°F.

Flow required = 614,160 ¸ 20 ¸ 500 = 61.4 GPM

The following table lists the required pump flow rate in relation to the boiler capacity and Delta T.

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 13.

Table 9 : Temperature rise vs flow rate (GPM)

MODEL

DELTA T0

10oF

20oF

30oF

40oF

VOLTMAX 23

15.7

7.8

5.2

3.9

VOLTMAX 27

18.4

9.2

6.1

4.6

VOLTMAX 30

20.5

10.2

6.8

5.1

VOLTMAX 36

24.6

12.3

8.2

6.1

VOLTMAX 40

27.3

13.6

9.1

6.8

VOLTMAX 41

28.0

14.0

9.3

7.0

VOLTMAX 45

30.7

15.4

10.2

7.7

VOLTMAX 48

32.8

16.4

10.9

8.2

VOLTMAX 50

34.1

17.1

11.4

8.5

VOLTMAX 54

36.8

18.4

12.3

9.2

VOLTMAX 55

37.5

18.8

12.5

9.4

VOLTMAX 60

40.9

20.5

13.6

10.2

VOLTMAX 66

46.4

23.2

15.5

11.6

VOLTMAX 68

45.0

22.5

15.0

11.3

VOLTMAX 72

49.1

24.6

16.4

12.3

VOLTMAX 75

51.2

25.6

17.1

12.8

VOLTMAX 90

61.7

30.8

20.6

15.4

VOLTMAX 99

67.8

33.9

22.6

17.0

VOLTMAX 108

73.7

36.8

24.6

18.4

VOLTMAX 120

82.2

41.1

27.4

16.1

VOLTMAX 132

90.5

45.2

30.2

22.6

VOLTMAX 144

98.7

49.3

32.9

24.7

VOLTMAX 150

102.4

51.2

34.1

25.6

VOLTMAX 165

112.6

56.3

37.5

28.1

VOLTMAX 180

122.8

61.4

40.9

30.7

3.4.2 DRAIN FAUCET

A drain valve is installed behind the unit. It allows the boiler to be emptied, to make possible the replacement of defective components.

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 14.

3.4.3 PRESSURE LOSS

The graph of pressure loss due to friction of water inside the VOLTMAX boiler is shown in the following

Figure 2 : Pressure loss (FTH) as a function of the flow rate of heated water (GPM)

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 15.

Figure 3 : Basic installation

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 16.

Figure 4 : Basic installation with indirect water heater and radiator

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 17.

Figure 5 : Dual-Energy installation with a condensing boiler

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 18.

Figure 6 : Multiple boiler parallel installation

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 19.

Figure 7 : Basic installation with auxiliary boiler for production of domestic hot water and heating

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 20.

3.5 ELECTRICAL CONNECTIONS

Wiring must conform to the National Electrical Code and to state or local code requirements.

The electric boiler must be electrically grounded in accordance with local codes, or, in the absence of local codes, with the National Electrical Code.

3.5.1 MAIN ELECTRICAL SUPPLY

The power supply must be a 208 or 240-volt circuit (single-phase or three-phase, 60Hz), 480 volts (three-phase, 60 Hz) or 600 volts (threephase, 60 Hz) protected by an appropriately sized breaker. The wiring rating (3 wires + ground) must be adequate. Refer to the boiler rating plate to select the breaker capacity and wiring rating

3.5.2 PUMP SUPPLY

The VOLTMAX Electric boiler (SCR models) can control 1 or 2 pumps of the distribution system. According to the working configuration of the pump, the contact of the controller will function differently.

During a heat demand on W1 or W2, the contact between Pc and P1 or Pc and P2 will be used to start an external pump relay (maximum of 3 amps.). Depending on the configurations selected in the controller (section Erreur ! Source du renvoi introuvable.), the pump P2 can have priority over the pump P1 and if this function is selected, the controller W2 and the pump P2 will be given priority by opening the pump contact P1.

N.B. The VOLTMAX boiler is not designed to heat without a water circulation in its tank. Therefore, if external pump controls are used, they must be interlocked with the operating authorization on W1 of the controller.

3.5.3 CONNECTION OF EXTERNAL SIGNALS TO THE CONTROLLER

The connection of all external signals is made directly on the boiler controller on terminals located on top of it. See the connection diagram on Figure 8 and Figure 9.

Cables used for the connections shall resist temperature up to 90 °C.

3.5.3.1 Connecting the building heat demand signal

Upon reception of a closed contact connected to terminals 24V+ and W1 or W2, the corresponding circulating pump P1 or P2 will start and the boiler will be allowed to operate.

If external controllers control the heating system pumps, they must provide the operating authorization signal. The boiler must not receive a heat demand without the circulation pumps running.

On heating systems when water circulation is continuous, the heat demand control can be connected to the 24V+ and W1 terminals. The heating elements will then be active and available only when there is a request (dry contact).

If the heating system is designed to keep water warm with continuous circulation, a jumper (jumper) must be installed on the 24V+ and W1 terminals to maintain the boiler in demand. The boiler will then attempt to maintain the water temperature at the set-point.

Operation with an upper fixed set-point W2 can be established by connecting the auxiliary heating demand signal (Dry contact) of a thermostat to the 24V+ and W2 of the terminal block.

In all operating modes of the controller, a heat demand on W1 and W2/DHW (close contact) must be present to DI1 or DI2 to allow the operation of the boiler. The only exception is in domestic hot water mode (DHW) with an indirect water heater where the minimum boiler temperature shall be maintained.

3.5.3.2 Connecting au auxiliary boiler

(Available only on SCR models)

The boiler controller is designed to allow the operation of a second boiler or an auxiliary gas or oil fired boiler according to two different mode of operation “Auxiliary Backup” or Dual-Energy”.

To do so, connect the TT terminals of the auxiliary boiler to terminals AUX of the VOLTMAX. The maximum capacity of this contact is 3A/120Vac.

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 21.

3.5.3.3 Connection of an “Unoccupied signal”

of the building.

This function allows dropping the boiler temperature during periods where the building is not used and this without having to lower all the room thermostats of the building. To do so, a signal (dry contact) will have to be connected to terminal OCC. The contact shall be close during the periods of temperature drop. You can also manage the periods of temperature drop by setting the parameters from the internal clock of the controller.

3.5.3.4 Connection of an indirect domestic

hot water heater

The VOLTMAX electric boiler can be used not only to fill the heating requirements of the building but also to fill its domestic hot water needs using an indirect domestic hot water heater such as our TURBOMAX series. To do so, connect the signal (dry contact) of indirect water heater temperature control to the terminal 24V+ and W2/DHW. This will activate the circulating pump supplying the water heater (if properly installed).

3.5.3.5 Connection of a dual-energy signal

The VOLTMAX can be operated in a dual-energy mode with an auxiliary boiler.

To do so, connect the normally close contact of the dual energy controller to terminals 24V+ & BI- E to operate with the electric boiler. See section Erreur ! Source du renvoi introuvable. for more details on the sequence of operation in dual energy.

3.5.3.6 Connection of an outdoor temperature

sensor

If you wish to modulate the boiler water temperature according to the outdoor temperature (Outdoor Reset, ORST) and also wish to stop the operation of the boiler when the outdoor temp. reaches a selected value (See section Erreur ! Source du renvoi introuvable.), then the outdoor sensor supplied with the unit or a corresponding signal coming from the network system shall be connected to terminals S. Ext. of the controller. This sensor does not need to be connected if the boiler application is for a fixed set-point operation.

N.B. Do not install a jumper if the outside sensor is not used.

Outdoor sensor location

o Outside the building at a location that best

represents the heat demand of the building (a wall facing north for most of the buildings and on a south one on buildings with large windows facing south).

o It should not be exposed to external heat

sources (dryer outlet, window openings, noninsulated walls).

o It should not be installed in a location where it

could be covered with snow.

Installation:

1. Drill a 9/64” dia. hole through the wall and insert the sensor cable.

2. Fix the sensor cover to the wall using supplied screw.

3. With an electric cable (100ft max.) having 2 conductors 20ga. connect one end of this cable to the sensor cable using twist-on wire connectors and the other end to terminals S.

Ext (G. & AI2) of the boiler.

3.5.3.7 Remote controller used to determine

the target boiler temperature

An external controller (such as a central building energy management system) can be used to determine the boiler target temperature required for the building. To do so, the external controller shall give a 0 to 10VDC signal connected to terminals 0-10Vdc G & 0-10Vdc T° of the controller.

3.5.3.8 Power limiting device

An external controller providing a 0-10Vdc signal could be used to manage the capacity (kW) of the boiler. Example: An application where the main electrical service supply of the building is limited or when the electricity rate is billed according to the maximum peak loads of the building. To do so, the external controller shall be connected to terminals 0-10Vdc G & 0-10V cap. The capacity of the boiler could be manually limited by adjusting some of the controller parameters. See sections Erreur ! Source du renvoi introuvable. for more details

3.5.3.9 Alarm

An alarm signal (dry contact) is available on the boiler to advise the user of an alarm situation. The capacity of the contact is 3A resistive/1A inductive on terminal AL/AL

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 22.

Figure 8 : ELECTRICAL CONNECTIONS OF THE INPUT AND OUTPUT SIGNALS TO THE CONTROLLER (SCR MODEL)

Figure 9 : ELECTRICAL CONNECTIONS OF THE INPUT AND OUTPUT SIGNALS TO THE CONTROLLER (STG MODEL)

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 23.

Figure 10: Control System Electrical Diagram (SCR model) (2 to 4 stages)

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 24.

Figure 11: Control System Electrical Diagram (SCR model) (5 to 6 stages)

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 25.

Figure 12: Control System Electrical Diagram (STG model) (2 to 6 stages)

Stage 1-1

SCR1

TITRE:

Diagramme électrique

VOLTMAX-SCR: 23 @ 72 kW

208-240V / 1ph

NOM DE FICHIER:

VOLTMAX-SCR: 72-208/

240/1PH

PAGE

1 de 1

DATE IMPRESSION:

No DESSIN:

THERMO 2000 inc.

500, 9e avenue Richmond (Québec)

J0B 2H0

REV. DESCRIPTION DATE Par/Verif

SCR-1

Com24VAC

T1 L1

TX-1

240-208V

x120V

Alimentation 120V Supply

voir détails de contrôle/See control details

R: Relais de puissance / Power relay

Circuit 240 & 208 x 1 ph Circuit

Basse tension 120VAC Low voltage

120

VAC

de TX

LWCO

HL-MR HL-AR

CR1

DO2-1

R-2

DO3-1

R-3

DO4-1

R-4

DO1-1

R-5

LWCO

(OPTION)

1/2A

24Vac

Extension

R14

Extension

R14

Extension

R14

Extension

R14

SCR

TX-2

120:24

40VA

Controler

TM171

Stage 2

Stage 3

Stage 4

Stage 5

Stage 6

SR-2

R-6

LWCO : Bas niveau d’eau / Low water cut off HL-MR: Haute limite manuel reset / High limit manual reset

HL-AR: Haute limite reset auto./ High limit automatic reset SCR: Relais de modulation / Modulating relay

C : Contacteur principal /Main contactor R: Relais de puissance / Power relay

Breaker

Press.

T in

T out

CR1- 2

HL&LWCO

W2/DHW

120Vac

stg-2R3stg-3R4stg-4

stg-5

ALARM

POMPE

CHAUFF.

POMPE

W2/

DHW

SCR

STATIC RELAY

OCC.

(On 5&6 stg models)

Note 1

COM.

Filage en usine Factory wiring

Filage au chantier Field wiring

CR-1

SR-1

0-10Vdc

AUX.

24Vac+

24Vac-

Outdoor

T sensor

BACnet

MSTP

120 ohm

24Vac +

Sens. Ext.

RS485

Note 2

24Vac-

24Vac

24Vac+

TM171PFE03

TM171EP14R

G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC

DO1 DO2 DO3 DO4 N

DIP

SWITCH

CAN

24V:50mA 5V: 20mA

DO1 DO2 DO3 DO4 N

G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC

24V:50mA 5V: 20mA

DIP

SWITCH

CAN

1 2 3 4 5 6 7

L H GS

1 2 3 4

1 2 3 4 5 6 7

L H GS

1 2 3 4

CAN

L H GS

G AI3 AI2

ETHERNET

24Vac

24Vac+

RMSP

0-10Vdc

Cap.

T G

Bornes de raccordement de contrôles bas voltage Low voltage Control terminal strip

SR-2

120Vac

NOTE 1: Ce contact est utilisé pour contrôler une chaudière auxiliaire sur les modèles ayant 4 stages et moins / This contact isused to control an auxiliary boiler on models having 4stages and less.

4 stg models

5 stg models

6 stg models

3 & 4 stg models

5 & 6 stg models

Stage 1

SCR

TITRE:

Diagramme électrique

VOLTMAX: 23 @ 75kW

208-240V/3ph

NOM DE FICHIER:

VOLTMAX

PAGE

1 de 1

DATE IMPRESSION:

No DESSIN:

THERMO 2000 inc.

500, 9e avenue Richmond (Québec)

J0B 2H0

REV. DESCRIPTION DATE Par/Verif

SCR

Com24VAC

T2 L2

R2/B

R-4/B

L1 L2 L3

TX-1

208/240

x120V

Alimentation 120V Supply

voir détails de contrôle/See control details

Circuit 208V ou/or 240V x 3 ph Circuit

Basse tension 120VAC Low voltage

VAC

de TX

LWCO

HL-MR HL-AR

CR1

SCR

R-2A

R-4/A

DO2-1

R-2

R-5/B

R-5/A

DO3-1

R-3

DO4-1

R-4

DO1-1

R-5

TDR

LWCO

24Vac

Extension

R14

Extension

R14

Extension

R14

Extension

R14

SCR

TX-2

120:24

Controler

TM171

LWCO : Bas niveau d’eau / Low water cut off HL-MR: Haute limite manuel reset / High limit manual reset

HL-AR: Haute limite reset auto./ High limit automatic reset SCR: Relais de modulation / Modulating relay C : Contacteur principal /Main contactor R: Relais de puissance / Power relay

Sectionneur /

disconnect

OPTION

R-3/B

R-3/A

Stage 2

Stage 3

EL#3

EL#2

EL#4

EL#5

Fusible

(Voir note 1)

Remplacable par

un relais

standard 2 poles

Note 1: En Option sur les modèles dont l’ampérage max. est inférieure à 120A. / In option on models on models having an amperage of 120A and less.

Press.

T in

T out

CR1- 2

HL&LWCO

W2/DHW

120Vac

stg-2R3stg-3R4stg-4

stg-5

ALARM

POMPE

CHAUFF.

POMPE

W2/

DHW

SCR

OCC.

(On 5 stg models)

Note 2

COM.

Filage en usine Factory wiring

Filage au chantier Field wiring

CR-1

SR-1

0-10Vdc

AUX.

24Vac+

24Vac-

Outdoor

T sensor

BACnet

MSTP

120 ohm

24Vac +

Sens. Ext.

RS485

Note 2

24Vac-

24Vac

24Vac+

TM171PFE03

TM171EP14R

G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC

DO1 DO2 DO3 DO4 N

DIP

SWITCH

CAN

24V:50mA 5V: 20mA

DO1 DO2 DO3 DO4 N

G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC

24V:50mA

5V: 20mA

DIP

SWITCH

CAN

1 2 3 4 5 6 7

L H GS

1 2 3 4

1 2 3 4 5 6 7

L H GS

1 2 3 4

CAN

L H GS

G AI3 AI2

ETHERNET

24Vac

24Vac+

RMSP

0-10Vdc

Cap.

T G

Bornes de raccordement de contrôles bas voltage Low voltage Control terminal strip

Note 2: Ce contact est utilisé pour contrôler une chaudière auxiliaire sur les modèles ayant 4 stages et moins / This contact isused to control an auxiliary boiler on models having 4stages and less.

4 stg models

5 stg models

4 stg models

5 stg models

4 &5 stg models

Stage 1

SCR1

TITRE:

Diagramme élect. / Electrical dia.

VOLTMAX SCR 30@90 kW

480&600V / 3ph

NOM DE FICHIER:

VOLTMAX: 90- 480&600

PAGE

1 de 1

DATE IMPRESSION:

No DESSIN:

THERMO 2000 inc.

500, 9e avenue

Richmond (Québec)

J0B 2H0

REV. DESCRIPTION DATE Par/Verif

Stage 2

Stage 3

SCR-1

Com24VAC

T1 L1

T2 L2

R2B

R3B

L1 L2 L3

TX-1

600:120

Alimentation 120V Supply

voir détails de contrôle/See control details

Circuit 480 ou 600V x 3 ph Circuit

Basse tension 120VAC Low voltage

120

VAC

de TX

LWCO

HL-MR HL-AR

CR1

R2/A

R3A

DO2-1

Stage 5

R5B

R5A

Stage 4

R4B

R4A

DO3-1

R-3

DO4-1

R-4

DO1-1

R-5

LWCO

(Option)

24Vac

Extension

R14

Extension

R14

Extension

R14

Extension

R14

SCR

TX-2

120:24

40VA

Controler

TM171

LWCO : Bas niveau d’eau / Low water cut off HL-MR: Haute limite manuel reset / High limit manual reset HL-AR: Haute limite reset auto./ High limit automatic reset SCR: Relais de modulation / Modulating relay C : Contacteur principal /Main contactor R: Relais de puissance / Power relay

Sectionneur /

disconnect

OPTION

Fusible / Fuse

(note 2)

R-2

Fusible / Fuse

(note 2)

Fusible / Fuse

(note 2)

Note 1:

Lorsque le stage 5 n’est pas utilisé, ce contact sert au démarrage de la chaudière Auxiliaire / When stage 5 is not used, this contact will be used to control the Auxiliary boiler. Note 2:

Offert en Option sur les modèles dont le courant nominal est de 120A et moins / Optional on models having a nominal amperage less than 120A. Note 3:

La configuration des éléments peut être en « Delta » ou en « Y » / Heating element configuration could be in « Delta » or « Y ».

Press.

T in

T out

CR1- 2

HL&LWCO

Bi-Energ.

W2/DHW

120Vac

stg-2R3stg-3R4stg-4

stg-5

ALARM

POMPE

CHAUFF.

POMPE

W2/

DHW

SCR

STATIC RELAY

OCCUPATION

30 @ 90 kW

(On 5 stg models)

Note 1

COM.

Filage en usine Factory wiring

Filage au chantier Field wiring

CR-1

0-10Vdc

AUX.

24Vac+

24Vac-

Outdoor

T sensor

BACnet

MSTP

120 ohm

24Vac +

Sens. Ext.

RS485

Note 2

24Vac-

24Vac

24Vac+

TM171PFE03

TM171EP14R

G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC

DO1 DO2 DO3 DO4 N

DIP

SWITCH

CAN

24V:50mA

5V: 20mA

DO1 DO2 DO3 DO4 N

G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC

24V:50mA 5V: 20mA

DIP

SWITCH

CAN

1 2 3 4 5 6 7

L H GS

1 2 3 4

1 2 3 4 5 6 7

L H GS

1 2 3 4

CAN

L H GS

G AI3 AI2

ETHERNET

24Vac

24Vac+

RMSP

0-10Vdc

Cap.

T G

Chaudière Aux.

Auxiliary boiler

Bornes de raccordement de contrôles bas voltage Low voltage Control terminal strip

30@90

45@90

60@90

75@90

Model 30@90

Model 45@90

Model 60@90

Model 75@90

Model 30@90

Model 45@90

Model 75@90

(note 3)

Stage 1-1

SCR1

TITRE:

Diagramme électrique

VOLTMAX- SCR: 99 @ 180 kW

480 & 600V / 3PH

NOM DE FICHIER:

VOLTMAX 180KW/480-600

PAGE

1 de 1

DATE IMPRESSION:

No DESSIN:

REV. DESCRIPTION DATE Par/Verif

Stage 2-1

Stage 3-1

SCR-1

Com24VAC

T1 L1

T2 L2

R-2/B

R-3/B

L1 L2 L3

TX-1

600:120

Alimentation 120V Supply

voir détails de contrôle/See control details

Circuit 480 ou 600V x 3 ph Circuit

Basse tension 120VAC Low voltage

120

de T

LWCO

HL-MR HL-AR

CR1

SCR

R-2/A

R-3/A

Stage 1-2

SCR1

Stage 2-2

Stage 3-2

DO2-1

R-2

Stage 5-1

R-5/B

R-5/A

Stage 5-2

Stage 4-1

R-4/B

R-4/A

Stage 4-2

DO3-1

R-3

DO4-1

R-4

DO1-1

R-5

TDR

LWCO

(Note 3)

24Vac

Extension

R14

Extension

R14

Extension

R14

Extension

R14

SCR

TX-2

120:24

Press.

T in

T out

CR1- 2

HL&LWCO

Bi-Energ.

W2/DHW

120Vac

stg-2R3stg-3R4stg-4

stg-5

ALARM

POMPE

CHAUFF.

POMPE

W2/

DHW

SCR

STATIC RELAY

OCCUPATION

99 @ 180 kW

(On 5 stg models)

Note 2

COM.

Filage en usine Factory wiring

Filage au chantier Field wiring

Controler

TM171

CR-1

0-10Vdc

AUX.

24Vac+

24Vac-

LWCO : Bas niveau d’eau / Low water cut off HL-MR: Haute limite manuel reset / High limit manual reset HL-AR: Haute limite reset auto./ High limit automatic reset

SCR: Relais de modulation / Modulating relay

C : Contacteur principal /Main contactor

R: Relais de puissance / Power relay

Sectionneur /

disconnect

OPTION

Fusible /Fuse

(note 1)

Note 1:

En Option sur les modèles dont l’ampérage

max. est inférieure à 120A /Optional on models having an amperage less thant 120A. Note 2

: Ce contact est utilisé pour contrôler une chaudière auxiliaire sur les modèles ayant 4 stages et moins / This contact is used to control an auxiliary boiler on models having 4stages and less. Note 3:

En option sur les modèles de 120kW à 180 kW/ In option on models of 120 to 180kW Note 4:

La configuration des éléments peut être en « Delta » ou en « Y » / Heating element configuration could be in « Delta » or « Y ».

Outdoor

T sensor

BACnet

MSTP

120 ohm

24Vac +

Sens. Ext.

RS485

Note 2

24Vac-

24Vac

24Vac+

TM171PFE03

TM171EP14R

G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC

DO1 DO2 DO3 DO4 N

DIP

SWITCH

CAN

24V:50mA 5V: 20mA

DO1 DO2 DO3 DO4 N

G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC

24V:50mA

5V: 20mA

DIP

SWITCH

CAN

1 2 3 4 5 6 7

L H GS

1 2 3 4

1 2 3 4 5 6 7

L H GS

1 2 3 4

CAN

L H GS

G AI3 AI2

ETHERNET

24Vac

24Vac+

RMSP

0-10Vdc

Cap.

T G

Chaudière Aux. Auxiliary boiler

Bornes de raccordement de contrôles bas voltage Low voltage Control terminal strip

THERMO 2000 INC 500, 9e Ave Richmond, QC

Model 99@180

Model 120@180

Model 99@144

Model 150@180

150@180

120@180

99@180

Model 99@108

99@180

Model 99@180

Note 4

TITRE:

Diagramme électrique

VOLTMA-STG: 23 @ 72 kW

208-240V / 1ph

NOM DE FICHIER:

VOLTMAX-SCR: 72-208/

240/1PH

PAGE

1 de 1

DATE IMPRESSION:

No DESSIN:

THERMO 2000 inc.

500, 9e avenue Richmond (Québec)

J0B 2H0

REV. DESCRIPTION DATE Par/Verif

TX-1

240-208V

x120V

Alimentation 120V Supply

voir détails de contrôle/See control details

R: Relais de puissance / Power relay

Circuit 240 & 208 x 1 ph Circuit

Basse tension 120VAC Low voltage

120

VAC

de TX

LWCO

HL-MR HL-AR

CR1

DO2-1

R-1

DO3-1

R-2

DO4-1

R-3

DO1-1

R-4

LWCO

(OPTION)

24Vac

Extension

R14

SCR

TX-2

120:24

40VA

Controler

TM171

Stage 2

Stage 3

Stage 4

Stage 5

Stage 6

SR-1

R-5

LWCO : Bas niveau d’eau / Low water cut off

HL-MR: Haute limite manuel reset / High limit manual reset

HL-AR: Haute limite reset auto./ High limit automatic reset SCR: Relais de modulation / Modulating relay

C : Contacteur principal /Main contactor R: Relais de puissance / Power relay

Breaker

4 stg models

5 stg models

6 stg models

3 & 4 stg models

5 & 6 stg models

T out

CR1- 2

HL&LWCO

W2/DHW

120Vac

stg-5

stg-2R3stg-3

stg-4

Filage en usine Factory wiring

Filage au chantier Field wiring

24Vac+

Outdoor T sensor

BACnet

MSTP

24Vac

Sens. Ext.

RS485

Note 2

24Vac-

24Vac

TM171PFE03

TM171EP14R

G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC

DO1 DO2 DO3 DO4 N

DIP

SWITCH

CAN

24V:50mA 5V: 20mA

1 2 3 4 5 6 7

L H GS

1 2 3 4

CAN

L H GS

G AI3 AI2

ETHERNET

24Vac

Bornes de raccordement de contrôles bas voltage Low voltage Control terminal strip

stg-1

Stage 1

3 stg models

SR-2

R-5

stg-6

TITRE:

Diagramme électrique

VOLTMAX- STG: 23 @ 75kW

208-240V/3ph

NOM DE FICHIER:

VOLTMAX

PAGE

1 de 1

DATE IMPRESSION:

No DESSIN:

THERMO 2000 inc.

500, 9e avenue Richmond (Québec)

J0B 2H0

REV. DESCRIPTION DATE Par/Verif

R2/B

R-4/B

L1 L2 L3

TX-1

208/240

x120V

Alimentation 120V Supply

voir détails de contrôle/See control details

Circuit 208V ou/or 240V x 3 ph Circuit

Basse tension 120VAC Low voltage

LWCO

HL-MR HL-AR

CR1

SCR

R-2A

R-4/A

DO2-1

R-1

R-5/B

R-5/A

DO3-1

R-2

DO4-1

R-3

DO1-1

R-4

TDR

LWCO

(Option)

24Vac

Extension

R14

SCR

TX-2

120:24

Controler

TM171

LWCO : Bas niveau d’eau / Low water cut off HL-MR: Haute limite manuel reset / High limit manual reset

HL-AR: Haute limite reset auto./ High limit automatic reset SCR: Relais de modulation / Modulating relay C : Contacteur principal /Main contactor R: Relais de puissance / Power relay

Sectionneur /

disconnect

OPTION

R-3/B

R-3/A

Stage 2

Stage 3

EL#3

EL#2

EL#4

EL#5

Fusible

(Voir note 1)

Note 1: En Option sur les modèles dont l’ampérage max. est inférieure à 120A. / In option on models on models having an amperage of 120A and less.

4 stg models

5 stg models

4 stg models

5 stg models

4 &5 stg models

T out

CR1- 2

HL&LWCO

W2/DHW

120Vac

stg-5

stg-2R3stg-3

stg-4

Filage en usine Factory wiring

Filage au chantier Field wiring

24Vac+

Outdoor T sensor

BACnet

MSTP

120 ohm

24Vac

Sens. Ext.

RS485

Note 2

24Vac-

24Vac

TM171PFE03

TM171EP14R

G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC

DO1 DO2 DO3 DO4 N

DIP

SWITCH

CAN

24V:50mA

5V: 20mA

1 2 3 4 5 6 7

L H GS

1 2 3 4

CAN

L H GS

G AI3 AI2

ETHERNET

24Vac

Bornes de raccordement de contrôles bas voltage Low voltage Control terminal strip

stg-1

R-1B

R-1A

Stage 1

EL#1

SR-1

R-5

5 stg models

3 stg models

Stage 1

TITRE:

VOLTMAX -STG : 30@90 kW

480&600V / 3ph

NOM DE FICHIER:

VOLTMAX 90- 480&600V

PAGE

1 de 1

DATE IMPRESSION:

No DESSIN:

THERMO 2000 inc.

500, 9e avenue

Richmond (Québec)

J0B 2H0

REV. DESCRIPTION DATE Par/Verif

Stage 2

Stage 3

R-2/B

R-3/B

L1 L2 L3

TX-1

600:120

Alimentation 120V Supply

voir détails de contrôle/See control details

Circuit 480 ou 600V x 3 ph

Basse tension 120VAC Low voltage

LWCO

HL-MR HL-AR

CR1

R-2/A

R-3/A

DO2-1

Stage 5

R-5/B

R-5/A

Stage 4

R-4/B

R-4/A

DO3-1

R-2

DO4-1

R-3

DO1-1

R-4

LWCO

(Option)

24Vac

Extension

R14

TX-2

120:24

40VA

120Vac

Controler

TM171

LWCO : Bas niveau d’eau / Low water cut off (Option) HL-MR: Haute limite manuel reset / High limit manual reset HL-AR: Haute limite reset auto./ High limit automatic reset C : Contacteur principal /Main contactor R: Relais de puissance / Power relay

R-1

R-1A

R-1/B

SR-AO1-1

R-5

SR: Relais statique / Static relay

T out

CR1- 2

HL&LWCO

W2/DHW

120Vac

stg-5

stg-2R3stg-3

stg-4

Filage en usine Factory wiring

Filage au chantier Field wiring

24Vac+

Outdoor T sensor

BACnet

MSTP

120 ohm

24Vac

Sens. Ext.

RS485

Note 2

24Vac-

24Vac

TM171PFE03

TM171EP14R

G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC

DO1 DO2 DO3 DO4 N

DIP

SWITCH

CAN

24V:50mA 5V: 20mA

1 2 3 4 5 6 7

L H GS

1 2 3 4

CAN

L H GS

G AI3 AI2

ETHERNET

24Vac

Bornes de raccordement de contrôles bas voltage Low voltage Control terminal strip

stg-1

Fusible / Fuse

(note 1)

Fusible / Fuse

(note 1)

Note 1:

Offert en Option sur les modèles dont le courant nominal est de 120A et moins / Offered in option on models having a nominal amperage less than 120A.

Fusible / Fuse

(note 1)

45@90

30@90

60@90

75@90

3 STG MODELS

2 STG MODELS

4 STG MODELS

5 STG MODELS

3 &4 STG MODELS

5 STG MODELS

Note 2:

La configuration des éléments peut être en « Delta » ou en « Y » / Heating element configuration could be in « Delta » or « Y ».

(Note 2)

Stage 1-1

SCR1

TITRE:

VOLTMAX-STG: 99 @ 180 kW

480 & 600V / 3PH

NOM DE FICHIER:

VOLTMAX 180KW/480-600

PAGE

1 de 1

DATE IMPRESSION:

No DESSIN:

REV. DESCRIPTION DATE Par/Verif

Stage 2-1

Stage 3-1

R-2/B

R-3/B

L1 L2 L3

TX-1

600:120

Alimentation 120V Supply

voir détails de contrôle/See control details

Circuit 480 ou 600V x 3 ph Circuit

Basse tension 120VAC Low voltage

120

de T

LWCO

HL-MR HL-AR

CR1

1/2A

R-2/A

Model 150 à 180

Stage 1-2

SCR1

Stage 2-2

Stage 3-2

DO2

R-1

Stage 5-1

R-5/B

R-5/A

Stage 5-2

Stage 4-1

R-4/B

R-4/A

Stage 4-2

DO3

R-2

DO4

R-3

DO1

R-4

TDR

LWCO Note 2

24Vac

Extension

R14

TX-2

120:24

T out

CR1- 2

HL&LWCO

W2/DHW

120Vac

stg-5

stg-2R3stg-3

stg-4

99 @ 180 kW

Filage en usine Factory wiring

Filage au chantier Field wiring

Controler

TM171

24Vac+

LWCO : Bas niveau d’eau / Low water cut off HL-MR: Haute limite manuel reset / High limit manual reset HL-AR: Haute limite reset auto./ High limit automatic reset

SCR: Relais de modulation / Modulating relay

C : Contacteur principal /Main contactor

R: Relais de puissance / Power relay

Sectionneur /

disconnect

OPTION

Fusible /Fuse

(note 1)

Note 1

: En Option sur les modèles dont l’ampérage max. est inférieure à 120A / Optional on models having an amperage less thant 120A. Note 2:

En Option sur les modèles de moins de

120kW / Optional on models less than 120kW

1/2A

Outdoor T sensor

BACnet

MSTP

120 ohm

24Vac

Sens. Ext.

RS485

Note 2

24Vac-

24Vac

TM171PFE03

TM171EP14R

G DI4 DI3 DI2 DI1 AO2 AO1 G 24v+ 5v+ AI4 AI3 AI2 AI1 G 24VAC

DO1 DO2 DO3 DO4 N

DIP

SWITCH

CAN

24V:50mA 5V: 20mA

1 2 3 4 5 6 7

L H GS

1 2 3 4

CAN

L H GS

G AI3 AI2

ETHERNET

24Vac

Bornes de raccordement de contrôles bas voltage Low voltage Control terminal strip

THERMO 2000 INC 500, 9e Ave Richmond, QC

stg-1

R-1/B

R-1/A

SR1

R-5

R-1

Model 99 à 144

Model 99 à 180

Model 120 à 180

Modèles 120 à 144

150 @ 180

120 @ 180

Modèles 150 à 180

99@180

Model 99@108

Model 120 à 180

Note 3:

La configuration des éléments peut être en « Delta » ou en « Y » / Heating element configuration could be in « Delta » or « Y ».

(Note 3)

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 34.

SECTION 4 : CONTROLLER OPERATION

4.1 USER INTERFACE

The control of the boiler is ensured by a controller TM171PFE03 of the company Schneider Electric. The LCD display of the controller provides an interface for configuring and displaying the boiler parameters.

A communication module also allows you to integrate the controller with an intelligent building management system (BACnet protocol). It is also equipped with an Ethernet connection. Allowing the connection to the Internet network of the building allowing to read and modify locally or remotely the boiler setting. It can be configured to send alarm messages via e-mail.

Icons will also display to indicate the boiler’s current operating status. Temperature can be displayed in Celsius or Fahrenheit and text can be set to either English or French.

The controller has a backlight function. It is also equipped with three indicator lights (Green / Yellow / Red). The green light indicates normal operation of the unit; the yellow light indicates that the controller has diagnosed and anomaly which requires verification by a technician. The red light indicates that the unit is currently in a critical state (high temperature alarm) or in lock out mode. More detail is provided in Section 6: Troubleshooting. The controller can also be configured to activate an audible alarm and activate an external alarm signal when an alarm

condition occurs causing the boiler to fail.

Figure 13 : Illustration of the display

4.1.1 SYMBOL DESCRIPTION

The main display shows most the boiler operation status information. The explanation of the main display is shown below.

Boiler operating mode

Heating request 1 : On

Heating request 2 : On

Pump 1 : On

Pump 2 : On

BIE

Boiler in Bi-Energy mode

VOLTMAX Boiler : On

Bi-energy operation with auxiliary boiler

Boost mode

: On

Warm Weather Shut Down

: On

Alarm symbol

An alarm is active

The boiler is in lock

out mode

High limit temperature is reached

Low limit (Lack of capacity)

Alarm due to a pressure problem

Alarm due to an electrical problem

Alarm due to a flow problem

Alarm due to a sensor problem

Operating state of the boiler

T° SETPOINT

Actual

set-point

temperature

T° BOILER

Water temperature at the outlet of the boiler

CAP

(%)

Percentage of power used according to boiler rated power

T° EXT

Outdoor temperature measured using the outdoor sensor

KW ACT

Actual power used by the boiler

PRESS.

Pressure inside the boiler

STAGE

Status of active stage

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 35.

4.1.2 CONTROL PANEL

Figure 14 : Control panel

On the left side of the appliance, an on / off switch (# 3) is used to operate the appliance and to reset the boiler.

An indicator light showing the status of the low water level cut off and a test button (# 1) is standard for models 120 kW and above. The control circuit fuses (# 2) are accessible from the left side of the unit.

4.1.3 NAVIGATION AND ADJUSTEMENTS

The navigation within the display is done with the five pushbuttons on the right of the screen.

Navigation between the elements is done with the up and down arrows. Use the right key to change the page in the menus. The return key will bring you to the previous menu. The return key returns you to the main display when it is pressed for 2 seconds or more.

The OK button confirms the selection and allows you to edit a parameter. Only highlighted box can be modified. To modify an option, select the box to modify with the arrow keys and press OK. Change the value of the option using the arrows and confirm the change by pressing OK.

2 3 4

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 36.

4.1.4 MAIN MENU NAVIGATION

Figure 15 : Main menu navigation

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 37.

4.1.5 NAVIGATION IN BOILER SETTING

Figure 16 : Navigation in boiler setting menu (1/2)

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 38.

Figure 17 : Navigation in boiler setting menu (2/2)

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 39.

4.2 MAIN MENU

The main menu is accessible to the user, no access code is required. The main menu is accessed by pressing one of the 5 pushbuttons. Navigation between menu is done with the arrows (up, down, left and right).

Contents

Boiler status

Detailed information on the boiler condition

Boiler setting

Configuration of the boiler operating mode.

User setting

Configuration of the controller display option

Clock setting

Configuration of the internal clock

Consumption

Power consumption of the boiler

4.2.1 BOILER STATUS

Detailed information on the boiler condition

This menu allows the display of data not included in the main display. The boiler status menu display the measurements of temperature, pressure, flow, alarm summary, version of the programme

The set of variables presented in this menu are presented in Section 4.5

4.2.2 BOILER CONFIGURATION

Configuration of the boiler operating mode

This menu is accessible only to the installer or to an authorized person.

The options in the Boiler setting menu are detailed in Section 4.3.

The Manufacturer access code gives access to advanced operating parameters that are not accessible to the installer and the user.

4.2.3 USER SETTING

Configuration of the controller display option

This menu allows the modification of different display parameters.

Parameters

Description

Language

Select English or French version

Temperature unit

Select the temperature units, either Celsius (C) or Fahrenheit (F)

Flow unit

Select the flow unit, either US gallons per minute (USgpm) or liters per second (L / sec)

Backlight

Setting the backlight mode

Internal buzzer

Setting of the internal buzzer

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 40.

4.2.4 CLOCK SETTING

Internal clock configuration

Use this menu to adjust the controller’s internal clock. To set the clock correctly, you must adjust the time, minutes, and date.

This adjustment is necessary in order for these modes to function properly:

- The boiler’s power consumption

- Limiting the boiler’s power capacity according to a schedule

- The boiler’s occupation mode

Battery life for the clock is at least 1 year when the controller is unpowered (at 25°C).

N.B. The date and day of the week must be set correctly to ensure the controller automatically changes to daylight savings time.

4.2.5 CONSUMPTION

Boiler consumption cycle report

This menu allows visualization of the boiler power consumption report. First, you must activate the beginning of the consumption cycle with the Start key. The consumption report can be saved using the Save key. And all saved report is available on the History tab. The beginning of the consumption cycles can be reset using the Reset button.

The controller records up to 30 consumption report.

N.B. For the STG model, the calculation of power consumption is based on a theoretical approach, there may be differences between the actual consumption of the boiler and the consumption displayed on the screen. For the SCR model, the amp meter is used to calculated the power consumption of the boiler.

4.3 BOILER SETTINGS

In order to be able to configure the boiler, it is necessary to authenticate yourself with an installer or manufacturer code.

The default "Installer" access code is 1111 and can be changed in the Change password menu.

HEATING

MODE W1

Boiler heating mode W1 configuration according to the type of application

HEATING

MODE

W2/DHW

Boiler heating mode W2 or DHW

configuration accor

ding

to the type of application

PUMP

SETTING

Pump contact configurations

CAPACITY

LIMITING

apacity limiting mode

configuration

AUXILIARY

BOILER

Auxiliary

boiler mode

configuration

(if needed)

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 41.

LIMIT SETTING

Configuration of the boiler operating limits

ALARM

Configuration of the alarms

COMMUNICATION

Configuration of the boiler communication parameter

OCCUPATION

Configuration of the occupation parameter mode

MODE BOOST

Enable Boost mode

WARM WEATHER

SHUTD.

Enable warm weather shut-down function

CHANGE

PASSWORD

Changing the Installer password

4.3.1 HEATING MODE W1 Selection of the operating mode

In this menu, you must select an operation mode depending on the application required by your installation. A heat demand must be present on W1 and/or W2/DHW so that the boiler can heat up. During a heat demand, the boiler activates (depending on a PID curve) the number of stages required in sequence so that the boiler output temperature is maintained at the approximate set-point temperature.

Here is the list of W1 heating modes:

FIXED

Fixed boiler set-point

DDC 010 VDC

Modulation of the boiler set-point using a 0-10VDC signal

OUTD RESET

Modulation of the boiler set-point using the outdoor temperature

STOP

No heating demand on W1

4.3.1.1 Fixe

This mode is used for an installation where it is desired to have a fixed set-point temperature. If the boiler is thermostat-controlled with a heat demand signal on W1, the boiler uses the corresponding set-point (T. Set-point W1) as the supply temperature.

4.3.1.2 DDC 0-10 VDC (Available only on SCR model)

This operating mode allows modulating the boiler set-point temperature according to a 010VDC signal applied the terminal 0-10VDC and G, produced by an external controller (Ex: Building Energy Management Controller).

The details of the parameters in this mode are presented in Section 4.6.3.

4.3.1.3 Outdoor reset

This operating mode makes it possible to modulate the boiler output set-point temperature as a function of the outdoor temperature. The outdoor temperature signal comes from the temperature sensor supplied with the boiler, which will be connected to the boiler controller.

The details of the parameters are presented in

Section 4.6.2 .

4.3.1.4 Stop

Select this mode when there is no boiler heating demand on W1.

4.3.2 HEATING MODE W2/DHW

This mode allows you to configure a second heating demand (W2) or a demand from an indirect domestic water heater (DHW). Select none if none of these functions are used. These modes are presented in detail in Section

4.7.

This mode allows the W2-DHW input to be used to receive a signal (dry contact) from a 2nd stage of heating. When the contact on W2-DHW closes, the setpoint temperature changes to the set value (T. Set-point W2), even if there is no demand on W1.

DHW

This mode allows you to configure the demand for an indirect domestic water heater. When the DHW mode is selected, the boiler is kept at a minimum temperature (T. Min Boiler) and when contact W2 closes (Dry contact) the set-point rises equivalent to T. DHW Set-point. In addition, the PID curve is more aggressive.

4.3.3 PUMP SETTING

Configuring pump contact activation (Available only on SCR model)

The system allows the control of up to two pumps. Each of these pumps can be activated using a contact (Max 3 Amp.). Each pump can be activated according to different modes.

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 42.

Pump Configuration Options

On W1 Dem.

Contact of pump 1 is activated only when there is a demand on W1.

On W2 Dem.

Contact of pump 2 is activated only when there is a demand in W2.

Priority over P1

When there is a request on W2, contact of pump 2 is activated and contact of pump 1 is deactivated.

Always On

The selected pump is always on (contact is always on).

Stop

The selected pump is always deactivated (contact is always off).

Off

Delay

The delay in seconds before the contact of the pump is deactivated.

4.3.4 CAPACITY LIMITING

Adjusting the maximum authorized power

This menu allows you to configure the boiler output limit. The selection of the limit mode can be selected in the Capacity limiting menu

o None o Manual o DDC 0-10 VDC o T. Ext o Schedule

Details of each of these options are presented in Section 4.9 . N.B: It is not recommended to disconnect one of the power relays to accomplish this function.

4.3.4.1 NONE

The boiler is not limited in power, the maximum power it can deliver is equivalent to its maximum rated power.

4.3.4.2 MANUAL

The maximum capacity permitted of the boiler is configured in a fixed mode. Details of the variables in this mode are presented in Section 4.9.1

4.3.4.3 DCC 0-10 VDC

(Available only on SCR model)

A 0-10 VDC signal from a building management system can be used. The signal is treated as a function in order to limit the maximum power. In order to configure this mode, you must connect the 0-10 VDC signal to the terminal block 0-10Vdc Cap. and 0-10Vdc G. Details of the variables in this mode are presented in Section 4.9.2

4.3.4.4 T. EXT

The maximum permitted power can be adjusted according to the outside temperature sensor. The outdoor temperature is used in order to limit the maximum authorized power. Details of the variables in this mode are presented in Section 4.9.3 .

4.3.4.5 Schedule

The maximum authorized boiler power can be programmed according to a schedule. See section 4.9.4 for an explanation of how to modify a schedule.

4.3.5

AUXILIARY BOILER

(Available only on SCR model)

The controller program has been designed to allow the operation of a second boiler or auxiliary gas or oil boiler. In order for the VOLTMAX controller to be able to record a rise in temperature caused by the operation of the auxiliary boiler, the piping installation must be

carried out in series. The heating return must first pass through the auxiliary boiler before entering the boiler.

Back up boiler operation

In the event of a lack of capacity, the boiler is started to compensate. The lack of capacity is defined by the fact that the boiler output temperature is less than X degrees (Delta T. Start Aux.) relative to the setpoint for duration of X min. (Auxiliary Start Delay). The auxiliary boiler will be deactivated

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 43.

when the temperature differential between the water outlet temperature and the set-point temperature is lower than Delta T. Off Aux. The operation of the auxiliary boiler is explained in detail in Section 4.10

The source of the set-point temperature control can be configured by selecting STPT source Aux. Consequently. The set-point temperature control can be dictated by the auxiliary boiler by selecting the External mode. The VOLTMAX boiler thus has no set temperature and is only used to activate the auxiliary boiler relay. The various configurations of the Aux boiler mode are the following :

None

No auxiliary boiler is present

Backup Aux.

This mode allows the adjustment of a second boiler to play a Backup role

Ext Contact

Select the heating source using electrical contact to the BI-E terminal.

BiE (BIEnergy)

Select the heating source using electrical contac

t to the BI-

E terminal

with the possibility of support mode of the auxiliary boiler.

Manual

Manually select the system operation mode (Electrical or Auxiliary).

N.B. The auxiliary boiler can only be switched on when a heat demand is present on W1 or / and W2 / DHW.

4.3.5.1 None

This mode must be active when there is no auxiliary boiler on the hydronic heating system.

4.3.5.2 Backup Aux.

The boiler will be activated according to the configuration of the lack of capacity. Details of the variables in this mode are presented in Section 4.10.1

4.3.5.3 Contact Ext.

This configuration mode makes it possible to operate the electric boiler or the auxiliary boiler according to a contact. During a close contact at

the BI-E terminals, the electric boiler (

) is

activated. When the contact is open, the auxiliary boiler ( ) will be on. The auxiliary

boiler will not be allowed to operate if the electric boiler lacks capacity. Details of the variables in this mode are presented in Section 0

4.3.5.4 BiE (BI-Energy)

The Bi-Energy mode allows the auxiliary boiler to operate when there is a lack of capacity. The auxiliary boiler will then be activated to help the electric boiler reach its set temperature according to the operating parameters

Upon receipt of an electrical signal (contact closed at Bi-E) and a request at the terminal of W1 or W2, the contact at the terminal of AUX

will be opened and thus the electric boiler ( ) is allowed to operate and the auxiliary boiler is deactivated.

When an electrical signal is absent (contact open at Bi-E) and a request is present at the terminals of W1 or W2, the contact will close at the terminal of AUX, in order to operate the

boiler Auxiliary ( ) and not the electric boiler. Details of the variables in this mode are presented in Section 4.10.4 .

4.3.5.5 Manual

Manual mode is used to manually select the operating mode of the system (Electrical or Auxiliary). Details of the variables in this mode are presented in Section 4.10.3

4.3.6 LIMIT SETTING

Configuring the boiler operating limits

Use this menu to adjust the permissible operating boiler limits for various parameters.

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 44.

This menu’s configuration options are presented in detail in Section 4.11.

4.3.7 ALARM

Alarm Mode Configuration

When an alarm is active, it will be displayed on the main display as a symbol.

An alarm is active

The boiler is in lock mode

The high limit temperature has been reached

Low limit (Lack of capacity)

Pressure problem alarm

Electrical problem alarm

Flow problem alarm

Sensor problem alarm

Ex: If P and Se are displayed at the same time, this indicates a pressure sensor problem

A summary of active alarms is also available in the Boiler status menu.

An alarm report is available under the Alarm log menu. Information about date, time and alarm code is available in this menu. The internal clock must be adjusted beforehand so that the alarm registers correctly. Section 6 - Troubleshooting details alarm codes and settings specific to this menu.

Details about this menu’s operation are available

in Section 4.12

4.3.8 COMMUNICATION

The boiler controller can be connected via an Ethernet network communication port or using a BACNet protocol. The boiler web portal can be accessed in a variety of ways. You will be able to modify the parameters remotely on a web portal and to visualize the anomalies.

Direct connection between the controller and a computer.

1. Connect the boiler controller to your local

network or directly to your computer in an internet port using an RJ45 network cable (located on the back of the controller). Refer to the wiring diagram, if you have any questions.

2. Open the Network and sharing center,

then Change adapter setting on a windows operating system. Open the Local area

connection properties, then Internet Protocole Version 4 (TCP/IPv4).

3. Replace the parameters by those show on

the following figure.

4. Open a web browser and enter the IP

address (available in the Communication menu / Ethernet) of the controller in the web address bar.

5. Enter your username and password.

Default

Address IP

10.0.0.100

User

Administrator

Password

password

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 45.

Remote connection using a boiler-specific wireless network.

If the boiler cannot be connected to the local network, a wireless router for remote connection can be installed. The configuration may differ depending on the model of the router being used. The methodology is presented with a TPLINK model TL-WR810N.

1. Plug the router into an electrical outlet.

2. Connect the network cable to the RJ45 socket on the controller and the LAN / WAN jack on the router.

3. Use a computer to connect to the wireless network generated by TL-WR810N. (by default).

4. Open a web browser and your wireless

network’s web configuration page at

http://tplinkwifi.net, or use the router’s default address.

Default

IP address

192.168.0.1

User

Admin

Password

Admin

Remote connection using a network connection

1. Enter a compatible IP address and subnet mask compatible with the network you want to connect to. Note: Select a free IP address that is compatible with the network (pay attention to the IP addresses of printers and other modules.)

2. Restart the controller to apply the changes.

3. Plug the network cable into the controller and into an Ethernet port (wall outlet or directly into the router)

4. Open a web browser and enter the previously selected IP address.

4.3.8.1 BACnet

The BACnet menu allows you to view the configuration and change the BACnet parameters. In order to configure the VOLTMAX boiler to your BACnet management system, you must activate the function.

You must then enter the correct baud rate. Ex: For a BACnet MS / TP communication protocol with a Metasys system the default baud rate is

38400. You must enter the correct MS / TP

address. Ex : For a BACnet MS / TP

communication with a Metasys system, the address is 5.

For more information on the BACnet protocol, please refer to the appropriate documentation.

4.3.9 OCCUPATION

Setting the temperature-lowering period.

4.3.9.1 Occupation setting

This function allows the boiler water temperature to be lowered for defined periods without having to lower all the thermostats of the building. This function can be activated and deactivated within the menu Occupation under Occupation mode. This function allows the set-point temperature to be lowered when the boiler is within the hours specified in the Schedule Setting menu. The temperature drop in the setpoint can be changed in the Occupation Setting menu.

The SCR model allows the connection of a contact (OCC Contact) on the controller allowing the use of an external timer to control the OCCUPATION function. The Contact OCC. option activates the operating mode using an external contact (switch). Ex: When the contact (switch) is open at the OCC terminal, then the boiler will be in temperature-lowering mode. (Night mode) When the contact (switch) is closed, it will be in normal occupancy mode (Day mode).

Force is used to force the boiler to operate normally (day mode).

A weekly schedule can be programmed under the Schedule setting to modify the occupation hours of the building.

4.3.9.2 SCHEDULE CONFIGURATION Changing a Schedule

Use this menu to configure the building’s

occupation schedule. The schedule works on a weekly schedule (Monday - Sunday). The first hour represents the start of the occupancy

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 46.

period and the second hour represents the innocupancy periods.

Ex: In the case currently displayed between 07:00 and 17:59, the set-point temperature will not be affected. On the other hand, from 18:00 to 06:59, the set temperature will be lowered.

When the building is not occupied for a full day, you must enter this information as follows, so that the boiler is not switched on.

4.3.10 BOOST MODE

Enable Boost Mode

This mode operates with the Fixed Set-point and Outdoor reset mode. This menu allows the Boost mode to be activated, this mode increase the set-point temperature when the heating load of the building exceeds the capacity generated by the current water temperature determined by the boiler. This mode is activated after a period of 30 min if the set-point temperature is not reached. After this period, the set temperature will start to rise until a predetermined maximum temperature is reached depending on the heating mode until the demand is filled. This temperature increase is temporary and has a maximum duration of 120 minutes or when the request is terminated on W1 and W2.

N.B. The BOOST mode is particularly interesting for applications such as:

o Applications with a programmable thermostat

with automatic lowering of the building temperature.

o Return to normal heat demand after a

prolonged period of sunshine where there have been no long-term demands and, therefore, heating floors will take a long time to provide heat at d Normal water.

4.3.11 WARM WEATHER SHUTDOWN Shuts down the boiler when the outside temperature reaches an established threshold.

This mode stops the boiler’s heating production when the outside temperature is higher than a pre-determined temperature (ex: 68°F).

Note: If the boiler is configured with DHW mode, it will continue to operate normally in order to meet the DHW heating demand.

4.3.12 CHANGE PASSWORD

Changing the password

This menu allows you to change the installer account password

4.4 INTERNET

The settings available on the controller are also available remotely on a web portal. This portal works only when the boiler is properly connected to an internet or Ethernet network. The various setting parameters and the protocol for connecting the boiler to a network are available in the Communication menu and Section

4.3.8.

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 47.

4.4.1 WEBSITE

In order to access the boiler remotely via the internet, the boiler controller must be correctly connected.

The web portal has 3 main menus, the User, Installer and Manufacturer menu. The structure of the web portal is the same as the controller; please refer to the previous sections, if you have any questions.

Ex: The user can obtain information concerning the boiler status, in the menu Operations /

N.B. The password to acces the installater section of the website is 1111. He is independent of the boiler password.

4.4.2 EMAIL

In order to configure the alarm by e-mail, you must:

1. You must first ensure that you enter the correct information in the controller (depending on your network) under the following options:

a. IP address b. Default Gateway c. Subnet mask d. Primary DNS e. Secondary DNS

You must restart the device for the changes to take place.

2. Access the Boiler Web Portal.

3. Click on the Installer / Communication menu.

4. Enter your e-mail under Recipient. You can

also use your own mail server by entering the necessary data.

5. Then select the types of alarms you want to receive by e-mail.

If you want to send alarms to different e-mail addresses, simply enter a list of e-mails.

Personal Email Server (Type: Gmail)

The M171 controller does not support SSL encryption. Thus, your SMTP Email server must accept an unencrypted connection. Internet service providers usually have a specific server that accepts connections without encryptions. On-line messaging services, such as Hotmail, G-mail, do not accept unencrypted communications. In order to work around the

problem, there are relay services such as SMTP2GO: https://www.smtp2go.com, to relay between controller communication and your messaging system. This service is free for up to 1000 emails per month.

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 48.

4.5 BOILER STATUS DISPLAY SETTINGS

Display

Description

BACnet Variable

BACnet Description

Set point

The set-point temperature of the boiler. The boiler will

activate its elements accordingly in order to modulate its

water outlet temperature.

AV_T

Set-point ---

T. Out Boiler

The temperature at the outlet of the VOLTMAX boiler.

AV_BoilerTOut

---

T. In Boiler

The temperature at the inlet of the VOLTMAX boiler.

This sensor is only available on SCR models.

AV_BoilerTIn

---

T. Outdoor

This variable allows the outdoor temperature to be displayed

in real time when the outdoor temperature sensor is correctly

connected.

AV_OutdoorT

---

Boiler Pressure

This variable allows the reading of the pressure sensor inside

the boiler.

AV_SensorPressureSignal

---

Actual power

The actual power used in kilowatt

AV_ActualPower

---

% max

authorized

power

The maximum permissible power as a percentage of the

nominal power.

AV_CapLimitPrc

---

Consumption

The power consumption of the last cycle.

You must first begin a history cycle (MAIN MENU /

CONSUMPTION)

--- ---

Actual Current

(A)

This variable allows the reading of the current sensor inside

the boiler. This sensor is only available on SCR models.

AV_SigCaptCourant

---

Demand W1

When requesting heating on W1, allowing the operation of

the heating elements.

BV_HeatingW1

0 = No W1 demand

1 = W1 demand

Demand

W2/DHW

When requesting heating on W2 or DHW, allowing the

operation of the heating elements.

BV_HeatingW2

0 = No W2 demand

1 = W2 demand

Pump W1

During a closed contact of the terminal block of the pump 1

BV_ContactPump1

0 = Pump 1 open contact

1 = Pump 1 closed contact

Pump W2/DHW

During a closed contact of the terminal block of the pump 2

BV_ContactPump2

0 = Pump 2 open contact

1 = Pump 2 closed contact

Flow

The theoretical flow calculated according to the power used,

T. Out B

oiler and T. In BoilerT.

Available on SCR models only.

AV_WaterFlow

---

SCR Modulation

Percentages of the SCR relay utilisation.

(For SCR model only)

AV_ModSCR

Stage #1

Operation of stage #1 (For STG model only)

BV_RelStage1

0 = Stage 1 not working

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 49.

1 = Operation of stage 1

Stage #2

Operation of stage #2

BV_RelStage2

0 = Stage 2 not working

1 = Operation of stage 2

Stage #3

Operation of stage #3

BV_RelStage3

0 = Stage 3 not working

1 = Operation of stage 3

Stage #4

Operation of stage #4

BV_RelStage4

0 = Stage 4 not working

1 = Operation of stage 4

Stage #5

Operation of stage #5

BV_RelStage5

0 = Stage 5 not working

1 = Operation of stage 5

Stage #6

Operation of stage #6

BV_RelStage6

0 = Stage 6 not working

1 = Operation of stage 6

Alarm

HL/LWCO

Alarm

Alarm triggered because of a high limit and low water level

manual alarm.

BV_StatusAlarmHL/LW

0 = Normal operation 1 = Alarm activated

HL Alarm

Alarm triggered when the boiler’s internal temperature is

higher than the threshold.

BV_AlarmIntHL

0 = Normal operation

1 = Alarm activated

LL Alarm

Alarm triggered by the boiler’s lack of capacity.

BV_AlarmLL

0 = Normal operation

1 = Alarm activated

Low Pressure

Alarm

Alarm triggered by a low pressure.

BV_AlarmLowPressure

0 = Normal operation

1 = Alarm activated

High Pressure

Alarm

Alarm triggered by a high pressure.

BV_AlarmHighPressure

0 = Normal operation

1 = Alarm activated

Flow Alarm

Alarm triggered by a flow problem.

BV_AlarmLowFlow

0 = Normal operation

1 = Alarm activated

Current Alarm

Alarm triggere

d by a current problem.

BV_AlarmCurrent

0 = Normal operation

1 = Alarm activated

Sensor Alarm

Alarm triggered by a sensor problem.

BV_AlarmSensor

0 = Normal operation

1 = Alarm activated

Boiler model

The VOLTMAX boiler model.

---

Tension

The nominal voltage of the VOLTMAX boiler.

---

Firmware

version

The controller’s firmware version.

--- ---

Program name

The controller’s program name and version.

---

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 50.

4.6 HEATING MODE W1 SETTINGS

Display

BACnet variable

Description

Parameters

Default

Operating Mode

WP_HeatingMod

eW1

Selects the power limitation mode

between Stop,

Modulation T. Ext, DCC 0

-10VDC and Fixed.

0 = Stop

1 = Outdoor Reset 2 = DCC 0

-10VDC

3 = Fixed

Fixed

4.6.1 FIXED MODE

Configure the fixed set-point temperature

Display

BACnet Variable

Description

Selection

Default

W1 Set point

WP_FixedSTPT

Selects the fixed set-point temperature when there is

demand on W1.

10 to 93

50 to 200

140

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 51.

4.6.2 OUTDOOR RESET MODE

Adjust the set-point temperature according to the outside temperature

This mode allows modulating the boiler output

set-point

temperature as a

function of the outdoor temperature. The outdoor temperature value

comes from a temperature sensor connected to the boiler controller.

If the outdoor sensor is not connected or if its circuit is open, an alarm

signal will be displayed on the display (SE). The boiler temperature set-

point

will become the set value at STPT Min T. Outdoor.

Figure 18 : Outdoor reset curve

Table 10 : OUTDOOR RESET MODE Settings

Display

BACnet

Variable

Description Parameters

Default

Calculated SPTP

AV_TBoilerSTP

TCalculatedOU

TRST

Current set-point temperature calculated based on the

adjustment curve

and the outside temperature

10 to 93

50 to

200

---

STPT at Min Outd T

WP_STPTatMin

OutdT

Boiler set-point temperature when the outside temperature

reaches the Min Outd T.

10 to 93

50 to 200

140

STPT at Max Outd T

WP_STPTatMa

xOutdT

Boiler set-point temperature when the outside temperature

reaches the Max Outd T.

10 to 93

50 to 200

Outdoor T.

AV_OutdoorT

Displays the outside temperature in real time when the

outdoor temperature sensor is properly connected.

-46 to 107 °C

-50 to 250 °F

---

Min Outd T.

WP_MinOutdRs

Minimum outside temperature (Set to the area’s coldest

average temperature)

-46 to 107 °C

-50 to 250 °F

-10

Max Outd T.

WP_MaxOutdR

stT

Maximum outside temperature at which the building will need

heating

-46 to 107 °C

-50 to 250 °F

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 52.

4.6.3 MODE : DDC 0-10VDC

Modulation of the set-point temperature as a function of 0-10 VDC

(Available only on SCR model)

This operating mode allows to modulate the

set-point

temperature of

the water outlet of the boiler according to a 0

10VDC signal applied

to the ter

minal block 0-10Vdc T and 0-10Vdc G

from an external

controller (Ex: An energy management software).

A heat demand (closed contact W1 and / or W2

DHW) must be

present so that the boiler can heat up.

Figure 19 : Mode DDC 0-10 VDC

Table 11 : Specific parameters in DDC 0-10 VDC

Display BACnet variable

Description

Parameters

Default

T. STPT 0

-10VDC

AV_TBoilerSTPTCalculatedV

This variable represents the set-point temperature

based on the voltage of the building control system.

---

STPT at Min Volt

WP_STPTatMinRemote010V

Set-point of the boiler temperature corresponding to

the voltage level of Min Voltage.

F 80

STPT at Max Volt

WP_STPTatMaxRemote010V

Set-point of the boiler temperature corresponding to

the voltage level of Max Voltage.

140

Actual voltage

AV_Remote010VSTPT

Voltage emitted by the external controller in real

time

-10 V

---

Max Voltage

WP_MinRemoteVSTPT

The maximum voltage that the external controller

can send

-10 V

Min Voltage

WP_MaxRemoteVSTPT

The minimum voltage that the external controller

can send

-10 V

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 53.

4.7 W2 MODE SET-POINT TEMPERATURE SETTINGS

Display

BACnet Variable

Description

Selection Default

Operating Mode

WP_HeatingMod

eW2

Select the boile

r’s operating mode during demand on W2 (None

, W2

and

DHW)

0 = W2

1 = DHW 2 = None

None

4.7.1 W2 MODE

Configures the fixed set-point temperature during demand on W2

Display

BACnet Variable

Description

Selection Default

W2 Set point

WP_FixedSTPT

Selects the

fixed set-point temperature during demand on W2.

10 to 93

50 to 200

175 deg F

4.7.2 DHW MODE

Configures the fixed set-point temperature during demand on DHW mode.

Display

BACnet Variable

Description

Selection Default

Set-point

DHW

WP_FixedSTPT

Selects the fixed set-point temperature during demand on W2

terminale

10 to 93

50 to 200

175

T. Min

Boiler

WP_FixedSTPT

Selects the boiler’s minimum temperature.

The boiler’s heating elements will activate automatically

to keep the

hydronic system at the selected temperature.

to 93

to 200

150

4.8 PUMP CONFIGURATION MENU SETTINGS

4.8.1 PUMP 1

Display

BACnet Variable

Description

Selection

Default

Pump

configuration

WP_Pump1Mode

Selects the pump configuration mode (

pump contact switc

0 = None

1 = Always Active 2 = On demand W1

Always

active

Purge delay

WP_Pump1Delay

Configures the pump purge delay (used in W1 On-Demand

mode)

0 to 600 sec

30 sec

4.8.2 PUMP 2

Display

BACnet Variable

Description

Selection

Default

Pump

Configuration

WP_Pump2Mode

Selects the pump configuration mode

(

pump contact switch)

0 = None

1 =

Always Active

2 =

On demand W1

3 = Priority on P1

Always

Active

Purge delay

WP_Pump2Delay

Configures the pump purge delay (used in W1 On-Demand

mode)

0 to 600 sec

30 sec

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 54.

SPECIFIC PARAMETERS FOR THE CAPACITY LIMITING MENU

The boiler authorizes a maximal power use. The configuration of these modes is shown below.

4.8.3 MANUAL MODE

The maximum power is determined manually

Display

BACnet variable

Description

Parameters

Default

Max capacity

(kW)

Configure the maximum electrical power the boiler will use.

0 to maximum

rated power

---

4.8.4 MODE: 0-10 VDC

(Only available on SCR model)

The modulation of the maximum power is carried out using an external control 0-10 VDC.

Display

BACnet variable

Description

Parameters

Default

Max capacity

(kW)

The calculated power value as a function of the current and the nominal

operating voltage of the boiler

0 to maximum

rated power

---

kW at Min Volt

The maximum permissible power of the boiler when the voltage of the

external controller is at Min Voltage

0 to maximum

rated power

kW at Max Volt

The maximum permissible power of the boiler when the voltage of the

external controller is at Min Voltage

0 to maximum

rated power

---

0-10V Current

Signal

Voltage emitted by the external controller in real time

-10 V

---

Max Voltage

The voltage representing the maximum set-point of the external

controller

-10 V

Min Voltage

The voltage representing the minimum set-point of the external controller

0-10 V

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 55.

4.9 POWER LIMITATION MENU SETTINGS

You can control the boiler power with different modes. Their configuration is below.

Display

BACnet Variable

Description

Selection

Default

Limitation Mode

WP_CapLimitMo

Select the power limitation between Non

e, Manual, DCC 0-10VDC,T. Ext

and Scheduled.

0 = None

1 =

Manual

2 = DCC 0

-10VDC

3 = T. Ext 4 = Scheduled

---

4.9.1 MANUAL MODE

The maximum power is set manually.

Display

BACnet Variable

Description

Selection

Default

Current

authorized max

WP_ManualCapL

imit

Configures the maximum electrical power that the

boiler will use

to maximum rated power

---

4.9.2 0-10 VDC MODE

(Available on SCR models only)

An external 0-10 VDC controller is used to adjust the maximum power.

Display

BACnet Variable

Description

Selection Default

Current

authorized max

AV_ActualCapLi

mitkW

The value of power calculated based on the current and the boiler’s

nominal

operating voltage

0 to maximum

rated power

(kW)

---

Minimum Power

Volt (kW)

WP_MinRemote

VCapLimit

The boiler’s maximum power when the external controller voltage is at

Min Voltage

0 to maximum

rated power

Maximum Power

Volt (kW)

WP_MaxRemote

VCapLimit

The boiler’s maximum power when the external controller voltage is at V

for max. cap.

0 to maximum

rated power

---

Current Signal 0-

10V

AV_Remote010V

Cap

Voltage emitted by the external controller in real time

-10 V

---

Min Voltage

(VDC)

WP_CapLimitatM

inRemote010V

The voltage representing the external controller’s minimum set-point

-10 V

Max Voltage

(VDC)

WP_CapLimitatM

axRemote010V

The voltage representing the external controller’s maximum set-point

-10 V

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 56.

4.9.3 T. EXT MODE

Maximum power modulation

is based on

the outside

temperature.

Power modulation is shown below.

If the external sensor is not connected or there is a problem with

the sensor, then the power will be

limited according to

Cap. At T.

Ext. Min.

Figure 20: Adjustment curve according to the T. ext mode

Display

BACnet Variable

Description

Parameters

Default

Max capacity

(kW)

AV_ActualCapLi

mitkW

The value of power calculated based on the current and the boiler’s

nominal operating voltage

0 to maximum rated

power

---

Cap. At T. Ext.

Min

WP_CapLimitatM

inOutdT

Maximum authorized capacity according to T. Ext. Min

Ex. Maximum power is 170 kW for T. Ext min

0 to maximum rated

power

---

Cap. At T. Ext.

Max

WP_CapLimitatM

axOutdT

Maximum authorized capacity according to T. Ext. Max

Ex. Maximum power is 120 kW for T. Ext min

0 to maximum rated

power

--Actual T. Exterior

AV_Ou

tdoorT

This variable allows you to view the outside temperature in real time

when the outside temperature sensor is properly connected.

-46 to 107 °C

-50 to 250 °F

--T. Ext. Min

WP_MinOutdTCa

pLimit

Minimal outside temperature used to adjust the maximum power

-46 to 107 °C

-50 to 250 °F

10 F T. Ext. Max

WP_MaxOutdTC

apLimit

Maximum outside temperature used to adjust the maximum power

-46 to 107 °C

-50 to 250 °F

65 F

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 57.

4.9.4 SCHEDULE MODE

Power can be modulated according to a fixed schedule. This can be programmed in the Schedule Setting menu.

Display

BACnet variable

Description Parameters

Default

Max capacity

(kW)

AV_ActualCapLi

mitkW

Maximum capacity allowed at present time.

0 to maximum rated

power

--Cap In Schedule

WP_CapLimitDay

Mode

Power limitation when the boiler internal clock is within the power

limitation schedule.

0 to maximum rated

power

---

Cap Out

Schedule

WP_CapLimitNig

htMode

Power limitation when the boiler internal clock is outside the power

limitation schedule.

0 to maximum rated

power

--Schedule

---

Configuring the boiler power limitation schedule. In order to operate

correctly, you must first adjust the internal boiler clock in the

Clock

Setting menu.

---

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 58.

4.10 AUXILIARY BOILER SETTINGS

(Only available on SCR model)

The system allows control of an auxiliary boiler to the system. The different configuration options are shown below.

In or

der for the boiler to start, two conditions must be met:

The water outlet temperature of the Voltmax boiler must be below the start-up

temperature

Aux.

(T. Out Boiler < (T Set-point - Delta T. Aux Start)

The water outlet temperature of the Voltmax boiler must be below the start-up

temperature Aux. for a period of X minutes (

Start Delay Aux), after the

Voltmax

boiler is at 100% of it

s authorized power.

In order for the auxiliary boiler to turn off, the water outlet temperature of the

Voltmax boiler must be above the Aux.

T Out Boiler > (T. Set-point - Delta T. Aux Stop)

4.10.1 BACKUP MODE

Configures a second boiler as a backup.

Display

BACnet variable

Description

Parameters

Default

STPT Source

WP_STPTSource

Aux

Selects the source used to control the set-point temperature.

Auxiliary

means that the set-point will be determined

by the auxiliary

boiler

. The VOLTMAX boiler therefore has no set-

point temperature and

is only used to activate the auxiliary boiler relay.

Voltmax

means that the set-

point temperature will be determined by the

VOLTMAX boiler.

Auxiliary or

VOLTMAX

0 = Auxilliary

1 = VOLTMAX

VOLTMAX

Delta T. Start

Aux.

WP_DeltaTStartA

This option adjusts the temperature differential (set-point temperature –

Water outlet temperature) used to activate the auxiliary boiler.

0 to 55

0 to 100

Delta T. Stop

Aux.

WP_DeltaTStopA

This option configures the temperature differential (set-point temperature

–

Water outlet temperature) in the VOLTMAX bo

iler used to deactivate

the auxiliary boiler.

to 55

to 100

Delay Start

Aux.

WP_DelayStartA

This option adjusts the delay in minutes before activating the auxiliary

boiler.

Min

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 59.

4.10.2 EXTERNAL CONTACT MODE

This mode selects the hydronic system heating source (VOLTMAX boiler or auxiliary boiler) using the BI-E terminal’s electrical switch.

Display

BACnet

Variable

Description Settings

Default

STPT Source

WP_STPTSourc

eAux

Selects the source used to control the set-point temperature.

External

means that the set-

point will be determined by the auxiliary

boiler

. The VOLTMAX boiler therefore has no set-point temperature

and is

used only to activate the auxiliary boiler’s relay

Internal

means that the set-point temperature will be deter

mined by the

VOLTMAX boiler.

External or

internal

Internal

4.10.3 MANUAL MODE

Manual mode is used to select the system’s operating mode (Electric or auxiliary).

Display

BACnet Variable

Description

Selection Default

Active Boiler

WP_ActiveBoiler

This option selects which boiler is in operation; either the VOLTMAX

boiler

(electric) or the auxiliary boilder (auxiliary).

VOLTMAX ou

Auxiliary

0 = VOLTMAX

1 = Auxiliary

VOLTMAX

STPT Source

WP_STPTSource

Aux

Selects the source used to control the set-point temperature.

Auxiliary

means that the set-

point will be determined by the auxiliary

boiler. The VOLTMAX boiler therefore has no set

point temperature and

is only used to activate the auxiliary boiler relay

Voltmax

means that the set-point temperature wil

l be determined by the

VOLTMAX boiler.

Auxiliary or

VOLTMAX

0 = Auxiliary

1 = VOLTMAX

VOLTMAX

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 60.

4.10.4 BI-ENERGY MODE

This mode selects the hydronic system heating source (VOLTMAX boiler or auxiliary boiler) using the BI-E terminal’s electrical switch. The benefit of this

mode is that the system can operate the back-up boiler when needed.

Display

BACnet variable

Description

Parameters

Default

STPT Source

WP_STPTSource

Aux

Selects the source used to control the set-point temperature.

Auxiliary

means that the set-point

will be determined by the auxiliary

boiler

. The VOLTMAX boiler has no set-

point temperature and is only

used to activate the

auxiliary boiler relay.

Voltmax

means that the set-point temperature will be determined

by the

VOLTMAX boiler.

Auxiliary or

VOLTMAX

0 = Auxiliary

1 = VOLTMAX

VOLTMAX

Delta T. Start

Aux.

WP_DeltaTStartA

This option adjusts the temperature differential (Set-point temperature –

Water outlet temperature) used to activate the auxiliary boiler.

0 to 55

0 to 100

Delta T. Stop

Aux.

WP_DeltaTStopA

This option configures the temperature differential (Set-point temperature

–

Water outlet temperature) in the VOLTMAX boiler used to deactivate

the auxiliary boiler.

0 to 55

0 to 100

Delay Start Aux.

WP_DelayStartA

This option adjusts the delay in minutes before activating the auxiliary

boiler.

Min

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 61.

4.11 LIMIT CONFIGURATION MENU SETTINGS

Display

BACnet variable

Description

Settings

Default

Haute Limite T

WP_HighLimitTemp

Adjusts the temperature high limit at which the alarm

triggers

. If the water temperature leaving the

boiler

exceeds the alarm’s high limit

, it will trigger an HL

alarm and the boiler’s heating elements will be

deactivated.

0 to 92 °C

0 to 199 °F

180 °F

Delta T. LL

WP_DeltaTLL

Adjusts the temperature differential to activate the LL

alarm.

0 to -55 °C

0 to -99 °F

-20 °F

Delay LL (min)

WP_DelayLL

Adjusts the LL alarm trigger delay .

0 to 180 min 60 min

Pressure sensor

WP_ActivatePressureSensor

Activates the boiler’s internal pressure sensor module.

OFF / ON

0 = Off ; 1 = On

Actual pressure

AV_SensorPressureSignal

Reads the boiler’s internal pressure sensor.

---

Current sensor

WP_ActivateCurrentSensor

Activates the current sensor module.

This module is available on SCR models only

OFF / ON

0 = Off ; 1 = On

Calculated

current

AV_CalculatedCurrentSignal

Used to view the VOLTMAX boiler’s theoretical

electric consumption current.

--- ---

Actual current

AV_SensorCurrentSignal

View current as measured by a sensor.

---

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 62.

4.12 CONFIG. ALARM MENU SETTINGS

Display

BACnet Variable

Description

Possible Settings

Default

Status: HL/LWCO

alarm

BV_StatusExtAlarm

Displays the external alarm status. The external

alarm contact

is activated only if a high limit or

low

water level alarm occurs.

0 = Off 1 = On

---

Silence Alarm

WP_SilenceAlarm

Temporarily suspends the alarm .

0 = Off

1 = On

Off

Reset

Lockdown

WP_ResetLockDown

Cancels the Lockdown mode without resetting the

unit

Resetting the unit is required

when it is in LOCK-

OUT

mode, following repeated alarms over a short period.

0 = Off 1 = On

Off

Internal buzzer

WP_ActivateInternalBuzzer

Activates the controller’s internal buzzer.

0 = Off

1 = On

Deactivate LL

alarm

WP_

DeactivateAlarmLL ()

Deactivates the LL alarm.

0 = Off 1 = On

Off

4.13 OCCUPATION MENU SETTINGS

Display

BACnet Variable

Description

Possible Settings

Default

Occupation

Mode

WP_ActivateOccupationMode

Activates the Occupation function.

0 = Off

1 = On

---

Source OCC

WP_SourceOccupation

Selects the source used to determine the building’s

occupation schedule.

0 = Schedule

1 = Contact OCC

Lowering T.

WP_LoweringTInnoccupation

Lowers the set-point temperature.

---

Off

Occupation

Status

BV_StatusOccupation

Displays the Occupation mode status.

Off

: Day mode; the set-

point temperature is not

lowered On:

Night mode; the set-point temperature

is lowered

according to the configuration

0 = Off 1 = On

Force Day

Mode

WP_ForceOccupationDay

Forces the Day mode. The set-point temperature will

not be lowered.

0 = Off ; 1 = On

Off

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 63.

4.14 BOOST MENU SETTINGS

Display

BACnet Variable

Description

Possible Settings

Default

Mode BOOST

WP_ActivateModeBoost

This option enables the BOOST functionality.

0 = Off

1 = On

Off

4.15 WARM WEATHER SHUTDOWN MENU SETTINGS

Display

BACnet Variable

Description

Possible Settings

Default

Warm Weather

Shutdown

WP_ActivateWarmWeatherSD

Shuts down the boiler when the outside temperature

reaches a specific temperature

This temperature can

be set in the Warm Weather Shutdown Temperature

box.

OFF / ON

0 = Off ; 1 = On

OFF

T. Ext Shutdown

WWSD

WP_WarmWeatherSDTemp

Sets the outside temperature that activates the Warm

Weather Shutdown, if it shuts down the boiler.

0 to 55 °C

0 to 99 °F

68 °F

Current Ext. T.

AV_OutdoorT

Shows

the outside temperature in real time.

-46 to 107 °C

-50 to 250 °F

---

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 64.

SECTION 5 : BOILER START UP

Before operating this boiler, be sure to read and follow these instructions, as well as the warnings printed in this manual. Failure to do so can result in unsafe operation of the boiler resulting in property damage, bodily injury, or death. Should you have any problems reading, following or difficulty in understanding the instructions in this manual, STOP, and get help from a qualified person. Do not turn on the boiler unless it is filled with water. Do not turn on the boiler if the cold-water supply shut-off valve is closed.

After the boiler, has been plumbed and wired, it is now ready to be set for automatic operation

5.1 FILLING THE BOILER

Open the service valves at the outlet of the boiler and the cold-water supply valve (fill or makeup water valve) to boiler.

Open the relief valve on top of the boiler in order to purge the air out of the boiler tank during the fill process

Leave all shutoff valves open.

Check system for leaks and repair. Purge air from all the heating distribution zones.

Bleed air from different areas of the heat distribution system.

Check boiler pressure gage reading. The indicated pressure should be lower than the pressure relief valve design rating.

5.2 ADJUSTEMENT OF THE CONTROLLER OPERATING PARAMETERS

After the system has been manually purged of air, and all components (valves, vents, controllers) have been set properly, the boiler can be started.

Never operate this boiler until this has been done.

Consider safety and energy-savings when adjusting the boiler’s water temperature. It is more energy-efficient to maintain a set-point as low as possible while still meeting heating needs.

Safety and energy conservation are factors to be considered when setting the boiler water

operating temperature. The most energyefficient operation will result when the temperature setting of the controller is the lowest that satisfies the heating needs.

Make sure that the input of the operating parameters of the controller as well as the adjustable high mechanical limit control of the boiler corresponding to the values required for the application.

Adjusting the high limit is possible in the Limit Setting menu. The High temperature limit should be adjusted from 15 to 20F higher than the maximum operating temperature.

5.3 STARTUP PROCEDURE

Before starting the boiler, make sure that the heating distribution design is made so that the heating elements will come on only when water is circulating in the boiler.

1) Fill the boiler as described in Section 5.1.

2) Set the boiler operating temperature as described in Section 4.

3) Cancel all heating demand from the distribution system.

4) Turn on the boiler power breakers and switch.

5) The main contactors should be activated in sequence and the controller display shall be lighted. The heating elements shall not come on because there is no heat demand applied to the controller and if there is no water circulation in the unit.

6) Apply a heat demand. If the boiler target temperature is higher than the boiler water temperature, the heating elements shall come on in sequence more or less rapidly depending on the differential between the values.

N.B. It is normal that the elements be activated very rapidly during the boiler start-up since this temperature differential is generally high at this moment.

WARNING

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 65.

7) When the boiler capacity has reached 100% as displayed on the controller, measure the amperage and voltage values drawn by the unit. These values shall be close to those shown on the boiler name plate.

8) Slow down the heat demand from the heating system. The boiler temperature shall gradually increase and the boiler capacity shall drop gradually and stabilize when the boiler temperature will reach a temperature near the target temperature.

9) When the heating request is completed, the circulating pump can continue to operate (depending on the operating mode or the purge time) or switch off. The heating elements stop working.

10) Check the operation of the adjustable highlimit mechanical control.

11) Check the operation of the Low Water Cut OFF by pressing its test button during 5 sec.

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 66.

SECTION 6 : TROUBLESHOOTING

The troubleshooting section shows the various error messages that can occur during abnormal operation of the boiler.

It is possible to change the limits of some alarms on the controller in the Limit Setting.

6.1 WARNING LIGHTS

The LEDs above the navigation buttons indicate 3 different boiler states.

Active

warning

light

Boiler status

Green

Normal operation of the boiler

Yellow

One or more alarms are active. These alarms do not prevent the operation of the

boiler;

the boiler continues to operate in normal mode. Ex. The controller detects a problem with the amperage reading sensor.

Red

A critical alarm is active, accompanied by the buzzer (if active). Ex. A high limit alarm is active

6.2 OPERATING PROBLEM IDENTIFICATION

An alarm log is available in the BOILER CONFIG / ALARM / ALARM LOG. Each alarm

is recorded with its alarm code, the time and date. The register can record up to 30 alarms.

6.2.1 EXTERNAL HL / LWCO

When this alarm is present, the indicator light to the left of the boiler lights red. This alarm happens when one of the two external sensors (External fault Low Water Cut Off or External High limit) is triggered.

Look for the cause of this contact opening which normally occurs when there is a lack of water in the boiler according to the low water level sensor (Standard on 120 kW models and higher) or when the high temperature limit control detects a temperature higher than 210°F.

The external alarm contact will be activated immediately if it has been activated (Ext. Alarm Contact) in the Alarm menu. The heating elements stop working and will start again when the water level returns to normal. If this alarm happens 3 times in 1 hour, the boiler will be set in Lock out mode.

6.2.2 SENSOR ( SE )

The Sensor alarm is activated when the controller detects a problem with a sensor. This alarm usually appears with another alarm, for example the flow rate alarm (F) and the sensor alarm (SE), this help target a flow sensor problem, for example.

See Table 13 for comparison of Resistance measurements against temperature for the outdoor sensor.

6.2.3 LOW LIMIT ( LL )

The LL alarm is activated when the temperature differential between the set-point temperature and the boiler output temperature is higher than

Delta T.LL and this period is higher than the LL delay.

The heating elements remain in operation. The screen will automatically return to its normal state. When the temperature of the boiler approaches the set temperature.

6.2.4 FLOW ( F )

(Available only on SCR model)

The flow alarm is triggered when the theoretical flow calculation is below the manufacturer's authorized flow limit.

6.2.5 CURRENT ( A )

(Available only on SCR model)

The Current alarm is triggered when there is a difference of more than 20% between the measured current (Available only on SCR

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 67.

model) and the calculated theoretical current. This may indicate an electrical problem from a wrong connection.

6.2.6 HL TEMPERATURE ( HL )

The outlet temperature of the boiler is above the high limit allowed. This alarm triggers the deactivation of the heating elements of the boiler. The boiler is restarted when the temperature drops below the high limit (and the set-point) If the boiler is in this alarm state for more than 25 minutes, the boiler switches to Lock Out mode.

6.2.7 LOW PRESSURE ( P )

The Low Pressure alarm is activated when the pressure inside the boiler is below the allowed limit (default: 5 psi).

6.2.8 HIGH PRESSURE ( P )

The High Pressure alarm is activated when the pressure inside the boiler is above the allowed

limit (depending on the maximum boiler pressure)

6.2.9 LOCK OUT

Lock out mode is activated after 3 major alarms have been activated within one hour. When the lock mode is activated, the boiler is deactivated and can only be restarted by restarting the boiler (to the left of the control panel) or by using the reset Lock Out function (in the alarm setting menu).

Tableau 12 : Resistance (Ohm) according to the outdoor sensor measuring temperature

Temperature

Resistance

Temperature

Resistance

Temperature

Resistance

Temperature

Resistance

°F

°C Ω °F

°C

Ω

-50

-46

490 813

-7

46 218

7 334

160

1 689

-45

-43

405 710

-4

39 913

6 532

165

1 538

-40

336 606

-1

34 558

100

5 828

170

1 403

-35

-37

280 279

35 2 29 996

105

5 210

175

1 281

-30

-34

234 196

40 4 26 099

110

4 665

180

1 172

-25

-32

196 358

45 7 22 763

115

4 184

185

1 073

-20

-29

165 180

19 900

120

3 760

190

983

-15

-26

139 402

17 436

125

3 383

195

903

-10

-23

118 018

15 311

130

3 050

200

829

-5

-21

100 221

13 474

135

2 754

205

763

-18

85 362

11 883

140

2 490

210

703

-15

72 918

10 501

145

2 255

215

102

648

-12

62 465

9 299

150

2 045

220

104

598

-9

53 658

8 250

155

1 857

225

107

553

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 68.

SECTION 7 : MAINTENANCE

Properly maintained, your boiler will provide years of dependable, trouble free service. It is recommended that a regular routine maintenance program be established and followed by the user. Components are subject to eventual failure that requires service. Failure to use the correct procedures or parts in these circumstances may make the unit unsafe or reduce the life of the boiler.

The owner should have the following inspection and maintenance procedures performed:

7.1 BOILER WATER PIPING

YEARLY VISUAL INSPECTION

Check all piping for signs of leakage near joints, unions and shut-off valves. Repair as needed.

7.2 PRESSURE RELIEF VALVE

TWICE A YEAR

Check for possible leak at the outlet of the safety relief valve. If a leak is detected and the pressure at the indicator is less than 28psi, change the safety relief valve with a new one having similar characteristics. If the pressure is higher than 28psi, ask your heating service agency to determine the cause of the high pressure and have it corrected rapidly. Do not plug the outlet of this valve if a dripping condition occurs.

7.3 AIR PURGE

TWICE A YEAR

Check for proper operation of the automatic air purgers and activate manual air vents to eliminate air present.

7.4 ELECTRICAL INSPECTION

ANNUALLY

It is recommended to perform a visual inspection of the boiler electric compartment annually, during the heating season, to ensure it is watertight and that there are no signs of component or wiring overheating. Repair as soon as possible if necessary. Defective components should always be replaced with the Original Manufacturer’s parts.

The inspection should also include a check of the main temperature controls in operation as well as an amperage reading to verify the proper operation of all the heating elements.

The manufacturer's warranty DOES NOT cover a tank breakage caused by improper installation or maintenance. If the boiler safety valve opens periodically, this may be caused by the expansion tank.

Immediately call a qualified technician to inspect and remedy the problem.

NOTE: To prevent premature tank failure, the air trapped inside the tank must be purged periodically.

Before manually operating the relief valve, make certain no one will be sprayed with the hot water released by its opening. The water may be hot enough to create a SCALD hazard. The water released should be directed to a suitable drain to prevent injury or damage.

DANGER

WARNING

VOLTMAX ELECTRIC BOILER Installation and Operation Manual (Revised June 2017), Page 69.

VOLTMAX LIMITED WARRANTY

Warranty Coverage for Commercial Installation

Thermo 2000 Inc. warrants to the original purchaser that the DTHUltra tank installed in a commercial setting for ten (10) years. Commercial setting shall mean use in other than residential setting stated above in the residential setting definition. In the event that a leak should develop and occur within this limited warranty period due to defective material or workmanship, such leak having been verified by an authorized company representative, Thermo 2000 Inc. will repair or replace at our sole option the failed unit with the nearest comparable model at the time of replacement.

The original purchaser is responsible for all costs associated with the removal and reinstallation, shipping and handling to and from Manufacturer. The replacement unit will be warranted for the remaining portion of the original Warranty.

Limited two-year warranty on all VOLTMAX components & parts

All other DTHUltra components & parts are warranted for a period of two (2) years against defects due to defective material or workmanship. The original purchaser is responsible for all costs associated with the removal and reinstallation, shipping and handling to and from Manufacturer. The components, repaired or replaced are warranted for the residual period of the initial warranty on the unit.

Limitations

Thermo 2000 shall not be responsible for any damage, loss, and inconvenience of any nature whatsoever, directly or indirectly, relating to the breakdown or malfunction of the unit. This warranty limits its

beneficiary’s rights. Nevertheless, the beneficiary may have other rights,

which vary from state to state.

This warranty replaces any other expressed or implicit warranty and constitutes the sole obligation of Thermo 2000 towards the consumer. The warranty does not cover cost of removal, reinstallation or shipping to repair or replace the unit, nor administration fees incurred by the original consumer purchaser.

Thermo 2000 reserves its rights to make changes in the details of design, construction, or material, as shall in its judgment constitute an improvement of former practices.

This warranty is valid only for installations made within the territorial limits of Canada and the United States.

Warranty service procedure

Only authorized VOLTMAX retailers may handle warranty claims. The owner or contractor must provide the defective equipment to Thermo 2000 with the following details: the model, the serial number, a copy of the original invoice and the owner identification certificate.

Exclusions

This warranty is void and shall not apply if:

A) Defects or malfunctions resulting from installation, repair,

maintenance and/or usage that are not done in conformity with the manufacturer’s installation manual; or

B) Defects or malfunctions resulting from installation, maintenance, or

repair that are not done in accordance with regulations in force; or

C) Defects or malfunctions resulting from improper installation,

maintenance or repair done carelessly or resulting from consumer damage (improper maintenance, misuse, abuse, accident or alteration); or

D) Installation in which a relief valve (pressure) is not installed or if it is

not functioning properly, or when it is not connected to a drain to avoid damage to the property; or

E) Installation in which liquid circulating in the tank does not remain in

closed circuit or installation in which piping is leaking; or

F) A polybutylene pipe or radiant panel installation without an oxygen

absorption barrier is used; or

G) Installation where the acidity of water is not within the normal

Environmental Protection Agency (EPA) (between pH 6.5 – 8.5) guidelines or the water contains abnormal levels of particulate matter or water exceeding 10.5 gpg; or

H) Your home contains any type of water softener system and the unit

is not installed and maintained in accordance with the manufacturer specifications; or

I) The DTH Ultra unit is being subject to non-authorized modifications;

J) Defects or malfunction resulting of storing or handling done

elsewhere than Thermo 2000’s manufacturing plant; or

K) Units on which the serial number is removed or obliterated.

THERMO 2OOO INC.

500, 9

ième

Avenue,

Richmond (Qc) Canada J0B 2H0

Tel: (819) 826

-5613 Fax: (819) 826-6370

www.thermo2000.com

THERMO 2000 VOLTMAX 45, VOLTMAX 30, VOLTMAX 36, VOLTMAX 41, VOLTMAX 50 Installation And Operation Manual

Specifications and Main Features

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