Rogers ZEN Bedienungsanleitung
ZEN Thermostat™
Manufacturer's Installation Guide
2 Smart Home Monitoring | Zen Thermostat | Manufacturer's Installation Guide | Online Install Guide
Complex or Unusual Installations
The ZEN Online Installation Guide works for over 90% of install situations. However, if a
wiring combination is not recognised, the user is notified.
If there is any uncertainty about the configuration,
ZEN recommends calling a HVAC technician
ZEN Thermostat Online
Install Guide
The ZEN thermostat is designed to be installed by DIY customers and HVAC installers.
The ZEN online installation guide (www.zenthermostat.com/install) should be the first point
of call for any installation. It provides step-by-step instructions for installing and configuring
ZEN, which are customised to the specific wiring configuration of the user.
The next steps are:
1. User provides more information to support centre via email. An image of the existing
thermostat wiring is very valuable.
2. Support centre responds with:
›Advice on how to wire up the ZEN thermostat and which configuration code to use
›If the installation is complex, a recommendation to call a HVAC technician.
›If the installation is not compatible with ZEN, a recommendation to return ZEN
to the place of purchase
3 Smart Home Monitoring | Zen Thermostat | Manufacturer's Installation Guide | Installation Tips and Tricks
Precautions and Safety
As with all electrical equipment, the first step in
installation should be to turn o the main breaker.
The ZEN thermostat works on low voltage systems
rated at 24 volts, with a maximum current rating of
2A per relay. This is the common voltage for most
furnaces, heat pumps and air conditioning systems.
ZEN will not work on line voltage systems of 110 volts
or higher. These systems are typically European
systems or electric baseboard systems.
If the wiring is installed in a junction box, it is also
likely to be 110V or higher.
Usually, these systems will have thick black, white
or red wires connected with wire nuts on the
thermostat.
If the HVAC system is not compatible with ZEN,
please return ZEN to the place of purchase.
ZEN Installation Tips
and Tricks
4 Smart Home Monitoring | Zen Thermostat | Manufacturer's Installation Guide | Installation Tips and Tricks
Removing the existing thermostat
main display
Most thermostats allow you to remove the main unit
and provide access to a wall plate which holds the
wiring terminals.
Removing the existing thermostat diers between models. It usually requires:
›Snapping it o the wall with moderate pressure
›Undoing small screws
›Lifting locking tab and rotating the thermostat
If you are unable to pull it o, please refer to your thermostat manufacturer's website
or manual for removal instructions.
Some old thermostats contain mercury in a sealed tube. Contact the
Thermostat Recycling Corporation at www.thermostat-recycle.org/
for information on how and where to properly and safely dispose
of your old thermostat.
Wire Labelling
There is no single standard for wire colours and thermostat connections. However, most
thermostats have terminal blocks with wire labels. The way in which the old thermostat is
wired and labelled is one of the best guides for how to wire up the ZEN thermostat.
Correctly identifying the wires that exist ensures that all the functions of your heating and
cooling system will be able to be controlled by the ZEN thermostat.
If you are unsure or your wire terminals are unlabelled, tracing
the wires back to the HVAC system is the best way to determine
what each wire does.
ZEN provides wire labels in the package, which should be
used to label the wire before they are removed from the old
thermostat terminals.
The ZEN online installation guide provides a detailed description
of which label should be applied to which wire. Once the old
thermostat is removed, the best way of identifying wires is
through the ZEN labels. The wiring diagrams provided by ZEN
are all based on the ZEN labelling format
5 Smart Home Monitoring | Zen Thermostat | Manufacturer's Installation Guide | Installation Tips and Tricks
Terminal Description Alternate Labeling
RPower side of 24V transformer V
Display Power side of 24V heating switch 4
Rc Power side of 24V cooling switch
CCommon side of 24V 24C, 24
YSwitched power for cooling Y1
WSwitched power for heating W1
GSwitched power for fan
Y2 Switched power for second stage cooling
W2 Switched power for second stage heating
EEmergency heat enable AUX
O/B Reversing valve activation O, B
The basic connectors for a home thermostat can be found in the
table below:
Wire Preparation and Insertion
Disconnecting the wires from the existing thermostat may
require a screwdriver to undo the terminals.
Once removed, it is important to check that the wires are in
good condition so that they make good electrical contact.
Check wires have between 5/16 - 3/8in (8-10mm) exposed core.
If they don’t, you may need to cut and re-strip them.
If you have stranded wire, ensure that all strands are safely
captured in the terminal.
If the installation guide has specified that some wires should not
be connected, ensure that they are properly insulated.
6 Smart Home Monitoring | Zen Thermostat | Manufacturer's Installation Guide | Installation Tips and Tricks
Link Removal and Insertion
Many thermostats use links to connect
common circuits together.
ZEN does not require re-use of old links.
It comes complete with 2 links, which are
located on the rear of the main unit.
The links can be removed by pulling gently
and inserted by pushing them into place.
Configuration of the links is determined
based on the information entered into the
online install guide. The function of each link
configuration is shown below:
Link 1 and Link 2
›Rc and Rh connected to common return
›Aux connected to same return as Rh
›Applies to most single stage systems
and heatpump systems
7 Smart Home Monitoring | Zen Thermostat | Manufacturer's Installation Guide | Installation Tips and Tricks
Link 1 Only
›Rc and Rh on separate return circuits
›Aux connected to same return as Rh
›Applies to systems which have separate
heating and cooling equipment
Link 2 Only
›Rc and Rh connected to a single return
circuit
›Aux connected to separate return circuit
›Applies to most heatpump systems
where the auxiliary heat system is
separate equipment
No Links
›This configuration is never used
8 Smart Home Monitoring | Zen Thermostat | Manufacturer's Installation Guide | Installation Tips and Tricks
Mounting the ZEN Wallplate
The ZEN wallplate should be mounted so that
the bundle of wires comes out through the
centre of the wallplate.
Use a level to help align the wall plate, then
mark the mounting holes on either side.
The mounting hardware supplied in the ZEN
package consists of 2 wall anchors and 2
screws. The wall anchors are suitable for use
on both drywall and plaster.
Use a 1/4in (6mm) drill bit to drill holes for the
wall plugs. Ensure that the wires are kept out
of the way when drilling.
Insert the wall anchors into the holes.
Attach the wallplate using the screws
provided. Take note of the orientation arrow
which should point upwards.
If your previous thermostat was larger, you
may choose to use the blanking plate to cover
any unsightly areas.
The blanking plate is sandwiched between
the wall plate and the wall and does not
require any extra screws to attach.
The blanking plate can be used in either
portrait or landscape orientation
9 Smart Home Monitoring | Zen Thermostat | Manufacturer's Installation Guide | Installation Tips and Tricks
Attaching the Main Display
ZEN requires 4 AA batteries to operate the
main display, even when a C-wire is
connected.
If a C-wire is available, the batteries are only
used when the unit is o the wall and will last
indefinitely.
If no C-wire is present, the batteries will last
for 2 years under typical use conditions.
The main display attaches to the wall plate
by magnets located at each corner.
Once located, the electrical connection is
made between the terminals on the wall
plate and the main display.
There is also a small push switch on the rear
of the main unit which is used to determine
if the main display is on the wall.
When the main display is on the wall, the
ZEN user interface allows for setting the
temperature and mode of the HVAC system
When the main display is removed from the
wall, it enters PREFS mode which allows
setting of the thermostat preferences.
10 Smart Home Monitoring | Zen Thermostat | Manufacturer's Installation Guide | Installation Tips and Tricks
Configuring ZEN
ZEN uses a configuration code to set the important working parameters required by a
thermostat. These include the type and number of heating and cooling stages. A detailed
description of the ZEN configuration codes is given in the following section.
When first installed, ZEN does not have any configuration set. The display will show “ZEN”
until the CONFIG button is pressed and configuration is entered.
This sequence is intended to force the user
or installer to determine the correct
configuration of the device before they can
operate the heating or cooling. This reduces
the likelihood of damaging the HVAC system
through incorrect installation.
Some existing thermostats have dipswitches that may change the configuration of the
existing wire labels. If the thermostat you are replacing has multiple rows of wire labelling,
make sure to check for dipswitches that may alter the configuration. Finding the original
installation manual will assist you in getting the configuration set up correctly.
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