Heliodyne DELTA-T PRO Manuel utilisateur

INSTALLATION

GUIDE

EXCELLENCE

BY DESIGN

DELTA-T PRO

CONTROL UNITS

WIFI + ETHERNET

V. 3.3

WINTER ‘18-’19

Power Supply Protection for Delta-T Pro

Voltage spikes, current surges, and noise can occur in a building’s AC power supply once

a month or hundreds of times a day. They can arrive from the grid or be generated inside

the building by fluorescent lighting, electric motors, HVAC equipment and office machines.

If a sufficiently strong power surge is supplied to the Delta-T Pro, it may be subject to

data loss, settings resetting to their default, network disconnection, or general failure. For

this reason Heliodyne requires installing a surge suppressor between the Delta-T Pro and a

power source.

A variety of surge suppressors are available. Some surge suppressors include a circuit

breaker for overcurrent protection, which is different from power surges. Overcurrent is

a condition where equipment draws more current than its rating, such a ground fault or

short circuit. Typically, overcurrent events happen on the consumer’s side of the power

supply, whereas power surges happen on the utility side of the power supply.

If a surge suppressor is selected that does not provide a separate circuit breaker, there

is no interruption to the power supply when the protection activates or the suppressor

reaches the end of its lifetime.

For convenience, Heliodyne can assist in specifying off-the-shelf surge suppressors to

provide a basic level of protection. Please contact your Heliodyne salesperson for more

information.

SOLAR HOT WATER

TABLE OF CONTENTS

1. OVERVIEW.......................................................................................3

2. INSTALL & WIRING..........................................................................5

3. NETWORKING................................................................................10

4. SETTINGS......................................................................................13

5. MONITORING..................................................................................19

6. TROUBLESHOOTING........................................................................20

7. WARRANTY....................................................................................22

1. OVERVIEW

1.0.0. Safety Guidelines

This controller conforms to the National Electric Code and is

certified by the Underwriters Laboratory. Any electrical wiring

or modifications to the control I/O should be performed with the

power disconnected. Service should only be performed by a

qualified professional.

Carefully review all instructions in this manual for installation

and use. Do not modify equipment under any circumstances;

use only as designed. Install all components in an accessible

location for servicing and maintenance. Noncompliance with

these guidelines will void all warranties.

Follow all local building codes and regulations, as well as these

industry accepted guidelines and standards:

BUILDING USEC, UBC, UPC, NRCA

ASHRAE Solar Energy Equipment

NFPA 70 National Electric Code

1.0.1. Introduction

The Delta-T Pro controller is designed to control solar thermal

systems for use in domestic hot water, space heating, industrial

process heating systems, and for general purpose heat metering

with remote monitoring. Special water-proof enclosure is

available for solar pool heating systems.

The controller’s user interface can be accessed using a PC or a

MAC through its mini-USB port, or by accesing its assigned IP

address with a web browser. When the device is connected to

the Internet, the controller can transmit data to the Heliodyne

monitoring site for remote monitoring data logging. For best

results, Heliodyne recommends consulting an IT professional for

connecting to the device and configuring network parameters.

An intermediate level of knowledge in IT is required to install this

controller.

The Pro Controllers contain battery-backed SRAM, protecting

the system clock, settings and data in case of a power outage.

Because the battery is only lightly used during these events, it is

not user serviceable and will last the life of the control.

1.0.2. Models

The Delta-T Pro controller is available with an Ethernet only and

Etherneet plus Wi-Fi versions

•DLTA 000 005 [Ethernet]

•DLTA 000 008 [Wi-Fi + Ethernet]

1.0.3. Hardware and sofware Requirements for initial setup

•PC or Mac

•mini-USB cable (provided with the controller)

•Window 7/8/10 or Mac OS X or Linux

•USB drivers (available at http://www.deltatcontrols.com/

software-updates/1-drivers/)

1.0.4. Network Requirements for Monitoring Communication

•Consistent internet connection

•DHCP enabled network or available static IP-Address for

controller

•Network must allow TCP communication on port 9999

•[Wi-Fi] 802.11b/g/n compatible router with Open, WPA-

personal, WPA2-personal.

!WEP OR WPA/WPA2-ENTERPRISE ARE NOT SUPPORTED!

1.0. For service, contact Heliodyne: (888)878.8750

8. WALL MOUNTING TEMPLATE..........................................................23

1.0.5. Surge Protection Requirements

•Voltage spikes, current surges, and noise can occur in a

building’s AC power supply once a month or hundreds of

times a day. They can arrive from the grid or be generated

inside the building by fluorescent lighting, electric motors,

HVAC equipment and office machines.

•If a sufficiently strong power surge is supplied to the Delta-T

Pro, it may be subject to data loss, settings resetting to

their default, network disconnection, or general failure. For

this reason Heliodyne requires installing a surge suppressor

between the Delta-T Pro and a power source.

Please contact your Heliodyne salesperson for more information.

1.0.6. Relay Wiring

THIS CONTROLLER IS INTEDNED FOR INDOOR INSTALLTIONS

ONLY. THE ELECTRICAL INSTALLATION SHOULD BE

PERFORMED BY AN AUTHORIZED PROFESSIONAL. FOLLOW

ALL LOCAL REGULATIONS AND CODES WHEN INSTALLING

WIRE, FUSES, GROUNDING, ETC. PROTECT THE DELTA-T

FROM OVERCURRENT AND SURGE. BEFORE ANY ELECTRICAL

WORK IS DONE, ENSURE THE DELTA-T LINE CORD IS

DISCONNECTED FROM THE ELECTRICAL SOURCE.

1. When wiring to the individual relays, use the supplied UL

listed cable. This cable is prewired to the control board relay

and a strain relief is provided on the controller enclosure.

If the load requires larger gauge wire than what is in the

cable, consult Heliodyne.

2. The relay cable consists of three conductors, the color code

is as follows:

Black = N.O. Load, White = Neutral, Green = Ground

*More detail is provided in section 2 of this manual

3. Once outside of the controller enclosure, the relay cable

must be run in wire duct or conduit and cannot exceed 6ft

length before termination. Always conform to local electrical

code and regulations and National Electrical Code NFPA 70.

4. The termination of the end of the cable depends on the

component being controlled or powered. If the three

conductors are going to be terminated to a pump with

screw or clamp type terminal blocks, approved wire ferrules

should be installed properly on each conductor. The three

conductors must be terminated within an approved junction

box for the location. Be sure the ground terminal or lug is

of the proper size for the conductor. The cable must be

properly connected to the junction box with an approved

strain relief fitting.

SOLAR HOT WATER

WIFI (Optional)SD (Optional)

ETHERNET MINI USB

10kΩ Thermistor Sensors

Digital Flow /

Temperature

Digital Press /

Temperature

Pulse Flow Meter

10 VDC Supply

Touchscreen Port

(HCOMs only)

4-20 mA Output

Controlled Current

24 VAC Thermostat

Zone Detection

Reset

1 2 3

JP6

JP5

100 mA Fuse

On-O-Auto

120 / 240 VAC

Internally Powered Outputs

Power Input

Relay 1 Relay 2 Relay 3

Collector Out

Storage Low

Storage High

HX Cold Side

HX Hot Side

MODBUS port

+C2

-C2

+C1

-C1

T7 p

NC NC NHN H N

INSTALLATION / CONTROLLER IO 5

2. INSTALL & WIRING

2.0. Installation

2.0.0. Mounting the Standalone Box

The Delta-T Pro should be mounted on a wall indoors, away from weather

and interference. Using the mounting holes on the back of the box, securely

install 3 screws into mounting plane leaving 1/4” between the wall and the

back of the bolt head; place control back upon screws and slide down to

secure box tightly into screw pattern. A screw template is provided with

this manual on page 23.

An ideal installation location is:

•About 5 ft. (1.5m) off the finished floor

•Away from equipment and other sources of electrical interference

•Out of direct sun; in a cool dry location

2.1. Controller Inputs and Outputs

FIG. 2.0.0

FIG. 2.1.0

SOLAR HOT WATER

WIRING RELAYS FOR AVAILABLE FUNCTIONS

GROUND

GROUND NEUTRAL

115VAC

230VAC

NEUTRALLOAD

R1 R2 R3

N.O. LOAD

RELAY 2 WIRING

RELAY 3 WIRING

RELAY 1 WIRING

VOLTAGE SWITCH

POWER WIRING

N.C. LOAD

2.2. Wiring

2.2.0. Power Wiring and LED Indication

This control comes pre-wired with a grounded electric cord for plug-

in operation in 115VAC, 10A systems. If a modification needs to

be made to the power connection, connect the appropriate gauge

Load, Ground and Neutral wires to the connector.

Red LEDs will light up when power is applied to the board.

Likewise, when the relays have been activated, either by the

controller or manually, red LEDs next to the active relay will show.

2.2.1. 230 VAC Switch

The voltage switch can be adjusted to handle 230VAC supply

(modification of the cord plug may be necessary). Use caution

as this also changes the supply voltage to the relays. I.E. if the

switch is set to 230VAC supply, the pumps or accessories wired

to the relays must also be able to operate on 230VAC. Heliodyne

packaged units come default with 115 VAC pumps, unless

specifically ordered otherwise. Board revision 11 and on do not have

a voltage switch and will auto-detect the applied voltage.

2.2.2. Relay 1 Wiring and Functionality

Relay 1 has a N.O. and N.C. connection; they share a common

middle neutral connection. For components with a ground wire, a

connection can be made using the relay 1 ground connection.

• N.O. - Solar Relay: this is the connection for the solar

operation pumps. Both the solar and the tank pumps in

dual-pump systems are connected here. It operates based

mainly on T1-T2 temperature differential.

• N.C.: this connection can be used to power components

that operate opposite to the solar operation, such as a pool

controller with domestic water heating priority

2.2.3. Relay 2 Wiring and Functionality

Relay 2 has only a N.O. connection. For components with a

ground wire, a connection can be made using the relay 2 ground

connection. Relay 2 can have one of two potential uses, depending

on the operating mode (see SETTINGS for more information on

operating modes)

• Space Heating Mode: Relay 2 can operate a pump or valve

when a thermostat terminal is closed and the set temperature

is reached in the tank sensor (T2 or T3 if installed)

• Dual pump Mode: In dual-pump systems the controler can

operate Relay 2 to power the domestic water circulator

independently of the solar loop circulator.

2.2.4. Relay 3 Wiring and Functionality

Relay 3 has only a N.O. connection. For components with a

ground wire, a connection can be made using the relay 3 ground

wire. Relay 3 can have four purposes:

• Electric Ignition Gas Tank Operation: Connect the tank power

cord to this relay.

• Timer Operation: Turn this relay on and off at a set hour

during each day.

• Aquastat Operation: Operate this relay when a sensor

reaches a set temperature.

• Simple Differential Operation: Operate a second differential

using sensors of your choice.

GROUND NEUTRAL

N.O. LOAD

FIG. 2.2.0

FIG. 2.2.1

FIG. 2.2.2

FIG. 2.2.3

FIG. 2.2.4

NEUTRAL

GROUND

RED POWER LED

RED RELAY LED

SENSOR INSTALLATION AND PLACEMENT

SENS 000 001 SENS 001 001

BRASS IMMERSION WELL - 1/2”NPT

SENSOR INSTALLATION

THERMISTOR SENSORS

VFS AND RPS SENSORS

2.3. Sensors

2.3.0. Types

The Delta-T Pro can read four types of sensors: 10kΩ

Thermistors, Grundfos VFS (Vortex Flow Sensor), Grundfos

RPS (Relative Pressure Sensor) sensors, and pluse flow

sensors.

2.3.2. Flow rate and pressure Sensors

Heliodyne supports Grundfos VFS sensors and pulse flow

sensor for flow rate measurement. VFS sensor measures the

frequency of the vortex street with a piezoelectric sensor and

has no moving parts. Both VFS and RPS have an embedded

temperature sensor. Five flow rate ranges and 1 pressure

range are supported:

• FLOS 005 000 [0.25 to 5 GPM]

• FLOS 010 000 [0.5 to 10.5 GPM]

• FLOS 026 000 [1 to 26 GPM]

• FLOS 053 000 [2 to 53 GPM]

• FLOS 106 000 [5 to 106 GPM]

• PRSS 150 000 [0 to 150 psi]

FIG. 2.3.2

2.2.5. Relay Specification Summary Table

ITEM RELAY 1 RELAY 2 RELAY 3

Contact Voltage (Wetted) 115 or 230 115 or 230 115 or 230

Contact Type N.O. & N.C. N.O. N.O.

Max Ratings 1HP, 115V; 2HP, 230V [N.O.] 1/4 HP, 115V; 1/2HP, 230V

[N.C.]

TYPICAL CLOSED LOOP SOLAR SYSTEM

VFS

RPS

T T P

2.3.1. Temperature Sensors

We have two mounting styles of thermistors available, each

suitable for different system placement:

• SENS 000 001: The flattened copper lug can be attached to

the sensor stud on a solar storage tank, or can be strapped to

the outside of the system fluid tubing (must be wrapped with

insulation).

• SENS 001 001: This sensor works in conjunction with the

immersion well, and can be placed in the fluid stream for

greater accuracy.

The sensor leads are 24AWG Class II and carry 4VDC. Use

18-24AWG zip or bell wire to run from the sensor location

to the controller. Use caution when installing to avoid wire

damage. Shielded wire is not necessary. Use insulation and

weatherproofing for accurate sensor readings. Install out of direct

sunlight. We also recommend applying thermally conductive gel

between the sensor and immersion well to reduce measurement

error.

RPS

VFS

FIG. 2.3.3

SOLAR HOT WATER

SENSOR PURPOSE

2.3.3. Collector Sensor T1

Supplied with HPAK, HCOM, HPASS, and HFLO systems

TYPE: 10kΩThermistor

USE: REQUIRED

FUNCTIONS:

• ‘Hot’ differential operation

• ‘Hot’ energy calculation

• Freeze monitoring sensor for open loop

• Low temperature monitor for vacation mode

• Useful collector temperature monitor

• Drain back system high limit monitor

WARNINGS:

• Must be well insulated

• Never install inside collector

• Install on collector outlet header only

2.3.4. Low Tank Sensor T2

Supplied with HPAK, HCOM, HPASS, and HFLO systems

TYPE: 10kΩThermistor

USE: REQUIRED

FUNCTIONS:

• ‘Cold’ differential operation

• Tank high limit monitor

• Low temperature monitor for vacation mode

• Single Tank Gas function monitor average w/T3

• Relay 2 space heating setpoint

• Relay 3 operation setpoint

WARNINGS:

• Must be well insulated

• Ensure contact with tank wall

2.3.5. High Tank Sensor T3

Supplied with HCOM systems

TYPE: 10kΩThermistor

USE: OPTIONAL

FUNCTIONS:

• ‘Cold’ differential operation average with T2

• Tank high limit monitor average with T2

• Low temperature monitor for vacation mode

average with T2

• Single Tank Gas function monitor average with T2

• Relay 2 space heating setpoint in place of T2

• Relay 3 operation setpoint in place of T2

WARNINGS:

• Isolate from ambient

• Ensure contact with tank wall

• To use average, use checkbox in Settings

2.3.6. T4

Supplied with HCOM systems

TYPE: 10kΩThermistor

USE: OPTIONAL

FUNCTIONS:

• Use for energy calculation sensor

• Use for simple differential operations

• HCOM - Water side HX inlet (Cold)

WARNINGS:

• Must be well insulated

• Ensure good thermal contact with

measuring surface or use immersion sensor

2.3.7. T5

Supplied with HCOM systems

TYPE: 10kΩThermistor

USE: OPTIONAL

FUNCTIONS:

• Use for energy calculation / simple differential

• Outdoor reset in space heating mode

WARNINGS:

• Keep out of direct sunlight

2.3.9. Grundfos RPS and T7

Supplied with HCOM systems

TYPE: Relative Pressure Sensor / 2 x 5VDC Analog Sensing

USE: OPTIONAL

FUNCTIONS:

• Collector loop pressure monitoring

• Insolation monitoring with compatible pyranometer

• Electricity monitoring with compatible current transformer

2.3.8. Grundfos VFS and T6

Supplied with Pro Series and HCOM

TYPE: Vortex Flow Sensor

USE: OPTIONAL

INFO: Can be moved to measure flow rate anywhere in the

collector loop. Set T6 as the cold temperature sensor in

the controller setting

FUNCTIONS:

• Monitor flow rate and temperature for energy calculation

WARNINGS:

• Ensure correct VFS range is set in settings

T T P

RPS

VFS

WIRING FOR ADDITIONAL BOARD FUNCTIONS 9

2.4. Additional Functions

2.4.0. Functions

Additional functions as described below. Control reset and

manual operation of the relays are also addressed here.

2.4.1. Thermostat Zone Detection

Household thermostats can be connected to Z1 - Z4 There is one

removable insert for two connection pins.

The contacts are not wetted and need to be supplied for each zone

input signal with 24VAC to detect a call for heat. In space heating

mode, Relay 2 will be energized if a zone calls for heat and the

temperature reading on the set sensor is within the set limits.

Relay 3 can also be set to perform this function.

2.4.2. Variable Speed Current Output

Two 0-10VDC output signals are supplied to variable speed pumps

when selected in the settings. The algorithim implemented in the

controller adjusts the mass flow rate of the collector loop based

on the temperature difference between the collector outlet and the

storage tank and the total collector area, ensuring the flow rate is

always optimized for maximum solar gain and reduced pump power

consumption. If there is ample solar radiation, the pumps operate

at maximum speed.

2.4.3. Pulse Flow Meter Connection

If necessary, a pulse flow meters can be used in place of Grundfos

VFS. The meter must be capable of producing a square-wave

pulse with a pull up to positive DC voltage of 3VDC. The controller

provides 10VDC supply to the meter. Ensure the number of pulses

K-value are set in the settings.

2.4.5. Manual Reset of Network Parameters

To reset the network parameters, press the reset button shown in

Fig. 2.4.5.

ZONE DETECTION WIRING

CONTROLLED CURRENT WIRING

PULSE FLOW METER WIRING

MANUAL RELAY OPERATION

NETWORK RESET

2.4.4. Manual Operation of Relays

Often it is necessary to test the relays manually, or shut off the

relays should a problem occur. This part of the board is low voltage

(<5VDC).

ON: energizes all three relays REGARDLESS of sensor status.

OFF: de-energizes all three relays REGARDLESS of sensor status.

AUTO: relays are energized based on the sensor status and

operating parameters applied.

FIG. 2.4.1

FIG. 2.4.2

FIG. 2.4.3

FIG. 2.4.4

FIG. 2.4.5

RESET

BUTTON

AUTO

OFF

SOLAR HOT WATER

WIRING FOR ADDITIONAL BOARD FUNCTIONS 10

3. NETWORKING

For Mac, allow install software from unsigned developers.

a) Navigate to system preference -> Security and Privacy

b) Select “anywhere” under “Allow apps downloaded from”

If above option is not shown, open a terminal window

(CMD+space to open spotlight search, then type “terminal” & then hit

return) In the terminal, type in: sudo spctl --master-disable

Then repeat steps a) and b).

Reboot the computer after the drivers is installed.

1. Connect the computer to the controller with the provided mini-

USB to USB cable. If connects sucessfully, controller shows in the

computer as a portable usb driver and a local network connection

can be found as ‘Linux USB Ethernet’

2. Open a new browser window and enter the controller’s address:

192.168.7.2 in the address bar and hit enter/return key. If the

controller user interface (see Fig. 3.0) does not come up right

away, refresh your browser. Note the user interface might take up

to one minute to load completely depending on the web brower

and OS.

3.1. Communication to the controller

3.1.0. Connecting to the controller using the mini-USB port

With proper drivers, the DTT Pro controller can be connected to

a computer though its mini-USB port with the Ethernet-over-USB

feasture, which creates a virtual private network. It is the default

method for communicating to the controller.

1. Download drivers available at http://www.deltatcontrols.com/

software-updates/1-drivers/. Install derivers with administator

priviliege (e.g. in Windows, righ click the driver file and select

‘run as administrator’). Ignore mulitple warnings of Windows

Driver Certification warning. For winddow 8/10, follow following

steps to disable driver signature verification (require reboot)

a. Hold down shift key while click restart option

b. Select trouble shoot option

c. Select advanced option

d. Select startup settings

e. Click the “Restart” button to restart your PC into

the Startup Settings screen

f. Type F7 at the Startup Settings screen to activate the

“Disable driver signature enforcement” option.

g. Your PC will boot with driver signature enforcement

disabled and you’ll be able to install unsigned drivers

2.4.6. Alternative Purposes at Grundfos Pressure Sensor

The ‘Grundfos Pressure’ signals can be used for two alternate

purposes: measuring an electric circuit with a current

transformer (CT) such as a main supply and electric tank

element, or monitoring solar radiation with a pyranometer. Two

signals can be read simultaneously.

MODBUS INPUT

2.4.7. Modbus Connection

The DTT Pro has the ability to communicate with Modbus protocol

to a Building Automation System (BAS). Heliodyne also offers

bridge translators to map out Modbus communication to Bacnet

or Lonworks protocols. Please contact your local Heliodyne

representative for details on this feature.

3.0. Network Overview

The Heliodyne controllers provide internet connectivity for system

monitoring via Ethernet and/or WiFi. In addition, the controller has a USB

connection for setup and local system monitoring.

All settings are behind a log-in. The CASE Sensitive defaults password:

Password: caution (‘admin’ for firmware 5.8 and prior versions)

FIG. 2.4.6

FIG. 2.4.7

Grundfos

flow sensor

Grundfos pressure, or

pyrometer, or current

transformer (CT) sensor

+5VDC

GND

Ce manuel convient aux modèles suivants

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