Warmup WSM-200W User manual

™
The world’s
best-selling electric floor heating brand
WSM-200W Instruction Manual
warmup.com | [phone]
5(9

Enclosure NEMA 1 for indoor mounting
Relays Four (4) 240V/60A Relays
WiFi Relay Shelly 1
Amperage
MAX load bearing of
240A/240V single phase
power.
Approvals
UL-approved components
assembled in UL 508
facility
Limitations
The device must be mounted indoors
and within reach of the dwelling’s WiFi
signal.
The WSM-200W is currently designed
to operate in-ground snow melting
systems and is not yet calibrated to
operate roof melting applications. While it
can perform that function, it is not yet
updated with the specific requirements of
such applications (run-off melting, etc).
The WSM-200W is specifically
designed to work with the wattage output
of cables manufactured by Warmup Inc /
Warmup PLC. Warmup makes no
guarantees as to its suitabilit when used
with non-Warmup systems.
The Warmup WSM-200W is a WiFi-
enabled panel to operate your in-ground
snow melting system. The panel
contains load switching capabilities
(up to 240A/240V) and is triggered by the
weather forecast.
Although it has a manual power
button on the enclosure frame, the
WSM-200W is intended to operate
automatically and without the need for
external sensors. The device will monitor
the weather forecast several times per hour
looking several hours in advance (typically
2 hours). Once the weather data
matches trigger points set in the
parameters, the system will engage.
This allows the system to pre-heat
before the snow fall, making it significantly
more prepared during heavy snow falls. It
will aim to get the outdoor slab to 50-55°F
before the precipitation event and thereby
prevent any accumulation of snow. The
system carries an internal manual timer as
well as app-based time settings. Please
refer to the below manual for complete
instructions.
Product Specifications
The WSM-200W is intended to
operate Warmup’s WSM and WSMM
snow melting cables and mats in in-
ground snow melting applications.
Product Description

PANEL LAYOUT
The WSM200W controller
has four (4) - 240VAC/60A contactor
relays.
One (1) contactor relay
requires a 240VAC/60A dedicated
inbound circuit (see Figure 1, #1 &
2). This contactor relay will supply
power to the transformer (see
Figure 1, #3) . The transformer will
supply power to the Ground Fault
Relay, the Manual Timer, and the
WiFi Relay (see Figure 1, #4, 5 & 6).
There are three (3) additional
contactor relays to accommodate
larger loads. Each of the optional
relays require a 240VAC/60A
dedicated inbound circuit (see
Figure 1, #8).
There are eight (8) outbound
GFPE 240VAC/30A breakers two (2)
per contactor relay (see Figure 1,
#7) supplying the heater(s).
See page wiring diagram on
page 10.
1. Required: 1 - 240VAC/60A Dedicated Inbound Circuit
2. Required: Contactor Relay
3. Transformer
4. Ground Fault Relay
5. Manual Timer
6. WiFi Relay
7. GFPE Breakers (8): 240VAC/30A
8. Optional Contactor Relays: 3 - 240VAC/60A
Figure 1

You can activate your
WSM-200W manually by pressing the on/
off button on the door of the enclosure.
This is accessible to the user from the
outside of the panel.
However, at initial set-up, the
internal timer should be set up with the
desired number of hours for the timer to
function upon being triggered by the ON/
OFF button.
The timer can be set from 1 to 99
hours and Warmup defaults the timer at 1
period of 10 hours. We do not recommend
less than 5 hours for proper snow
melting results. This can be changed at any
point by the user.
When changing the settings of the
timer, you must first disconnect power
to the whole unit, then change settings,
then turn power back on. This is not
only for safety reasons, but also
because the timer requires a power-
cycle reset when its settings are
changed.
The manual operation of the system
can serve as an override to the
WiFi activation. This means that at any
point, the user can activate the system
manually without interrupting the regular
operation of the system using the WiFi
signal and the app’s parameters.
The breaker must be turned off
before adjusting the timer settings.
Manually Activating The WSM200W

1. Set the top orange dial to
10h
2. Set the middle orange dial
to the number of "run
time" hours.
a. 1 Hour = 0.1
b. 2 Hours = 0.2
c. 3 Hours - 0.3
d. 4 Hours = 0.4
e. 5 Hours = 0.5
f. 6 Hours = 0.6
g. 7 Hours = 0.7
h. 8 Hours = 0.8
i. 9 Hours = 0.9
j. 10 Hours = 1.0
3. Set the bottom orange dial
to Mode "D"
MANUAL TIMER SETTINGS
1. Set the top gray dial to 24h
2. Set the middle blue dial to the
number of "run time" hours.
3. Set the bottom white dial to
"BE"mode
T1-K KLEMSAN TIMER SETTINGS 80.1 FINDER TIMER SETTINGS
Example: Run Time = 5 Hours
1. Set Top Dial to 24h
2. Set Middle Dial to 5

To activate your WSM-200W automatically
as it was designed to be, you must
first download the Warmup WSM
application available in your iOS or Android
app store.
Upon download, verify that your system
is properly wired and powered so that it
can emit the necessary signals to your
home’s WiFi router. This signal will then be
picked up by your phone for the activation
of the app.
With all that verified, open the app and
follow the prompts. You will need to key in
your WiFi’s “name” (SSID) and the
password to connect to it.
Once the connection is established, the
following step will be to connect your
phone with the WSM-200W.
To do that, go to your phone’s SETTINGS
where you can review the available WiFi
signals.
Smartphone Application

A new signal will have appeared with the
format “Shelley-IOT-xxxx-xxxx” where the
“x” can be a series of numbers and letters.
Assuming it is the only WiFi signal starting
with Shelley-IOT… select it and let your phone
connect to it.
NOTE: newer versions of the WSM-200W
have a different relay and signal. If your
WiFi relay is a round blue box, a different,
unique WiFi signal will be emitted that may
not look like “Shelley…” but like “shelly1”
instead
This will pair up your phone with the
device. You can repeat this operation with
any other phone.
Once it has connected to the Shelley network,
it will prompt you to return to the
SETTINGS of your phone and return to your
home’s WiFi network as it originally was.
This is simply to return your phone to its
original set-up. The temporary switch to
the Shelley network allowed the
WSM-200W to pair up with your phone
specifically and it will now link directly with
your home’s router.
Over the next few screens you will be
guided to set up your system and name
it. It will select your location if your
phone allows it in order to determine the
exact location of your device, and by
extension your driveway and snow melting
system. This is important as the weather
forecast will be checked for that location
specifically.

Default parameters have been preloaded for
a typical snow melting system. You can click
on the EDIT icon (pen and paper) of your
snow melting system and change the
following:
EDIT NAME
If you wish to change the name of your
system you can do it here.
STARTING TRIGGER OR %PRECIPITATION The
weather forecast indicates the chances for
snow over the following several hours in
your area. Your device will trigger once the
probability is above the percentage identified
in your settings. We recommend 70-75%
probability, but a high % makes the system
less sensitive and a lower percentage makes
it more sensitive. This means that in areas
with fast-changing climates, you may want a
more sensitive system.
AHEAD START
As a default, the system will turn on 2 hours
prior to the forecasted precipitation event.
If your location requires more time, you can
change this here. You can simply let the
default setting run for a few snow falls and
adjust later on. If your wattage output is lower
than 50 watts/sqft (cables at 3” spacing) you
may need more than 2 hours to get your slab
to temperature prior to the snow fall. We
recommend setting this to 3 or 4 hours for
spacing of 4” (42w/sqft) or 5” (35w/sqft).

BELOW 0°F
It is recommended to not allow the
system to function when outdoor
temperatures are below 0°F / -18°C. This is
because the power required to heat the slab
to 40°F is simply too great and it is possible
that the system may not cope with the
requirement. At least not efficiently. The
default setting is to not allow this, but you
can force it ‘on’ here.
ABOVE 50°F
Similarly, we recommend letting the
system automatically power down if the
outside temperature reaches 50°F or
more. This is because at these
temperatures, natural snow melting occur
and you may prefer to let nature take its
course rather than spending Kilowatts to
melt the snow. Leave on “Yes” if you would
like the system to turn off above 50°F.
ACTIVATION LENGTH (MAX. RUN TIME)
The system is pre-programmed to not
operate more than 24 hours. In the
event it is struggling to keep up with the
weather or some of your settings have
called for it to operate continuously, this
safeguard prevents the system to operate
more than 24 hours at a time. It is not
recommended to turn this off.

Wiring Diagram
SUPPORT
Online
www.warmup.com
Technical Helpline
[phone]