United Spas T7 User manual

Disclaimers
1
End User Disclaimer:
United Spas, Inc. (United Spas) controls have absolutely no end
user serviceable parts. United Spas does not authorize attempts
by the spa owner/user to install or repair/service any United Spas
products.
Non-qualified users should never open or remove the control box’s
cover, as this will expose dangerous voltage points and other
serious risks.
Non-qualified users should not attempt to make changes to
the topside’s programming, as mis-programming can result in
malfunction or possible damage.
Please contact your dealer or a locally licensed service center for
service and technical support.
Warranty Disclaimer:
It is extremely important that any user read this user’s guide in it’s
entirety before attempting to operate this United Spas control. Any
damage that may occur due to misuse may void the warranty. See
warranty page for more information.
Safety Disclaimer:
When using this electrical equipment, basic safety precautions
should always be followed. Read and follow the important safety
instructions in the safety section before and during use.

Table of Contents
2
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
T7 Topside Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
About The T7 Topside . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Using The T7 Topside . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
T7 Topside Initial Configuration . . . . . . . . . . . . . . . . . . . . 9
User Configurable Settings . . . . . . . . . . . . . . . . . . . . . . 13
T7 User Settings Menu . . . . . . . . . . . . . . . . . . . . . . . . 13
Entering/Using the User Settings Menu . . . . . . . . . . . 13
T7 User Settings Menu Tree . . . . . . . . . . . . . . . . . . . . 14
Heating Modes: ‘Standard’ and ‘Economy’ . . . . . . . . . 15
T7 Filtration Cycle Operation . . . . . . . . . . . . . . . . . . . 15
Changing Filtration Cycle Settings . . . . . . . . . . . . . . . 16
Changing the Temperature Display Setting . . . . . . . . . 16
Changing the Buzzer Setting . . . . . . . . . . . . . . . . . . . . 16
Operation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Temperature Operation . . . . . . . . . . . . . . . . . . . . . . . . 17
Operating Pump-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Operating Pump-2 (If Applicable) . . . . . . . . . . . . . . . . 19
Operating Aux (Pump-3/Air Blower - If Applicable) . . . 20
Operating the Spa Light . . . . . . . . . . . . . . . . . . . . . . . 20
Standard Display & Error Messages . . . . . . . . . . . . . . . 21
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Safety
3
Important Safety Instructions:
When using this electrical equipment, basic safety precautions
should always be followed, including the following.
Read and follow all instructions!
1. Warning: Children should not use spas or hot tubs without adult
supervision
AVERTISSEMENT: NE PAS LAISSER LES ENFANTS UTILISER
UNE CUVE DE RELAXATION SANS SURVEILLANCE
2. Warning: Do not use the spa unless all suction guards are installed
to prevent body and hair entrapment
AVERTISSEMENT: POUR ÉVITER QUE LES CHEVEUX OU
UNE PARTIE DU CORPS PUISSENT ÊTRE ASPIRÉS, NE PAS
UTILISER UNE CUVE DE RELAXATION SI LES GRILLES DE
PRISE D’ASPIRATION NE SONT PAS TOUTES EN PLACE.
3. Warning: People using medication and/or having an adverse medical
history should consult a physician before using a spa or hot tub
AVERTISSEMENT: LES PERSONNES QUI PRENNENT DES
MÉDICAMENTS OU ONT DES PROBLÈMES DE SANTÉ
DEVRAIENT CONSULTER UN MÉDECIN AVANT D’UTILISER UNE
DE RELAXATION
4. Warning: People with inpectious diseases should not use a spa or
hot tub
AVERTISSEMENT: LES PERSONNES ATTEINTES DE MALADIES
INFECTIEUSES NE DEVRAIENT PAS UTILISER UNE CUVE DE
RELACATION

Safety
4
5. Warning: To avoid injury exercise care when entering or exiting
the spa or hot tub
AVERTISSEMENT: POUR ÉVITER DES BLESSURES, USER DE
PRUDENCE EN ENTRANT DANS UNE CUVE DE RELAXATION ET
EN SORTANT
6. Warning: Do not use drugs or alcohol before or during the use of a
spa or hot tub to avoid unconsciousness and possible drowning
AVERTISSEMENT: POUR ÉVITER L’ÉVANOUISSEMENT ET
LA NOYADE ÉVENTUELLE, NE PRENDRE NI ALCOOL AVANT
D’UTILISER UNE CUVE DE RELAXATION NI QUAND ON S’Y
TROUVE
7. Warning: Pregnant or possibly pregnant women should consult a
physician before using a spa or hot tub
AVERTISSEMENT: LES FEMMES ENCEINTES, QUE LEUR
GROSSESSE SOIT CONFIRMÉE OU NON, DEVRAIENT
CONSULTER UN MÉDECIN AVANT D’UTILISER UNE CUVE DE
RELAXATION
8. Warning: Water temperature in excess of 100°F (38°C) may be
injurious to your health.
AVERTISSEMENT: IL PEUT ÊTRE DANGEREUX POUR LA SANTÉ
DE SE PLONGER DANS DE L’EAU À PLUS DE 38° C (100° F)
9. Warning: Before entering a spa or hot tub measure the water
temperature with an accurate thermometer
AVERTISSEMENT: AVANT D’UTILISER UNE CUVE DE
RELAXATION MESURER LA TEMPÉRATURE DE L’EAU À L’AIDE
D’UN THERMOMÈTRE PRÉCIS
10. Warning: Do not use a spa or hot tub immediately following strenuous
exercise

Safety
5
AVERTISSEMENT: NE PAS UTILISER UNE CUVE DE RELAXATION
IMMÉDIATEMENT APRÈS UN EXERCICE FATIGANT
11. Warning: Prolonged immersion in a spa or hot tub may be injurious
to your health
AVERTISSEMENT: L’UTILISATION PROLONGÉE D’UNE CUVE DE
RELAXATION PEUT ÊTRE DANGEREUSE POUR LA SANTÉ
12. Warning: Do not permit electric appliances (such as a light, telephone,
radio, or television) within 5 feet (1.5 m) of this spa or hot tub
AVERTISSEMENT: NE PAS PLACER D’APPAREIL ÉLECTRIQUE
(LUMINAIRE, TÉLÉPHONE, RADIO, TÉLÉVISEUR, ETC) À MOINS
DE 1.5M (5 FEET) DE CETTE CUVE DE RELAXATION
13. Caution: Maintain water chemistry in accordance with manufacturer’s
instruction
ATTENTION: LA TENEUR DE L’EAU EN MATIÈRES DISSOUTES
DOIT ÊTRE CONFORME AUX DIRECTIVES DU FABRICANT
14. Hyperthermia occurs when the internal temperature of the body
reaches a level several degrees above the normal body temperature
of 98.6°F (37°C). The symptoms of hyperthermia include drowsiness,
lethargy, and an increase in the internal temperature of the body.
Effects: 1- Unawareness of impending hazard.
2- Fetal damage in pregnant women.
3- Failure to recognize the need to exit spa.
4- Physical inability to exit spa.
5- Unconsciousness and danger of drowning.
6- Failure to perceive heat.
15. Warning: The use of alcohol or drugs can greatly increase the risk of
fatal hyperthermia in hot tubs and spas
AVERTISSEMENT: LA CONSOMMATION D’ALCOOL OU DE
DROGUE AUGMENTE CONSIDÉRABLEMENT LES RISQUES
D’HYPERTHERMIEMORTELLEDANSUNECUVEDERELAXATION

T7 Topside Installation
6
Topside Installation Preparation
The T7 topside control requires a 1.75” hole in the shell of the hot tub to
be installed. If you don’t already have a hole that is 1.75” in diameter, you
can use a 1.75” (1 3/4”) hole saw to make the hole needed for installation.
Simply drill the hole in the center of where you’ll be installing the topside.
Topside Installation Location
The T7 topside should be installed on an outward facing edge of the hot
tub, so that it is not subject to trapped steam and moisture under the cover.
Failure to do so may result in the need to prematurely replace the graphic
decal assembly on the face of the topside control.
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About The T7 Topside
7
Topside Control Installation
Once ready to install, plug one end of the topside cable into the back of the
T7 topside control, and snake the topside cable through the cutout in the
spa’s shell and down to the control box. Then plug the opposite end of the
topside cable into the topside receptacle on the control box.
Simply affix the topside to the hot tub by peeling off the paper over the
adhesive back of the topside and press it firmly into place, slowly pressing
all around the perimeter of the topside firmly to assure a firm bond.
NOTE: Do NOT connect/disconnect the T7 topside while the control box
has power going to it. Always make sure the power is shut off at the breaker
before removing/installing a topside, as to avoid damaging the electronics.
Spa-Touch™ Technology
The T7 topside uses United Spas’patent pending Spa-Touch™ technology.
This hybrid switching technology marries the satisfaction of having a
physical button to press, with the longevity and reliability of touch-panel
switching system with no moving parts to break down over time.
If your button presses are not registering, make sure that you are pushing
the raised buttons completely flat against the panel, and that you are
waiting a second between button presses.

Using The T7 Topside
8
The T7 Topside
You will be using the T7 topside to operate your United Spas C5 Series
control box. The T7 is pictured below, with the descriptions of the items
that will be referenced throughout this user’s guide.
A video introduction to the T7 topside can be found on YouTube at the
following URL:
http://youtu.be/T_kGXIPwPzU
1
2 3 4 5 6 7 8
10- LED Display
20- Light Button
30- Temp Up Button
40- Temp Down Button
50- Indicator Lights
60- Jets-1 Button
70- Jets-2 Button
80- Aux Button

T7 Topside Initial Conguration
9
T7 Topside Configuration
Once the control box and topside have been properly installed, you can
power up the unit and program the topside for the control’s desired
equipment and operational configuration.
Upon Power-Up
Whenever the T7 topside is powered on, the unit will briefly flash between
‘T7’ and the current software version by showing an ‘S’ followed by a
number (Example: ‘S04’) while it starts up. All configurable settings are
saved to permanent memory, the only thing that needs to be set upon
power-up of a T7 topside that has already been configured previously is
the time until the next filtration cycle start (which defaults to 1 hour).
T7 Topside Configuration Codes
There are five codes that can be configured. Each code has a number of
options the code can be set to. By default, all codes are set to their first
option (Option 1).
Use the code chart on the next page to figure out which options you’ll need
to set for each code for the hot tub the control is being installed into.
Once you know what options all the codes should be set to, turn to the
pages that follow for instructions on entering the configuration programming
mode, and how to select the different options for each code.
A video on how to get into the programming mode, and set the different
code options is available to qualified service technicians at YouTube.
Please visit the following URL to watch the video:
http://youtu.be/n-K8bLnd1oU

T7 Topside Initial Conguration
10
T7 Configuration Code Chart
Code 1: Jet-1 Button Configuration
Option 1: Jet-1 button operates Hi-Speed Pump-1
Option 2: Jet-1 button operates Lo-Speed and Hi-Speed Pump-1
Code 2: Jet-2 Button Configuration
Option 1: Jet-2 button operates Lo-Speed Pump-1
Option 2: Jet-2 button operates Hi-Speed Pump-2
Option 3: Jet-2 button operates Lo-Speed and Hi-Speed Pump-2
Code 3: Aux Button Configuration
Option 1: Aux button used only for programming
Option 2: Aux button used for Air Blower w/ Purge*
Option 3: Aux button used for Air Blower (no Purge)
Option 4: Aux button operates Hi-Speed Pump-3
Code 4: Power (Amperage) Configuration
Option 1: 50A Operation (No heat with Aux)
Option 2: 60A Operation (No power restriction)
Option 3: 50A Operation (No heat with P-2)
Option 4: 40A Operation (No heat with P-2, and Aux)
Option 5: 20A 120V Operation or 30A 240V Operation
(No heat with anything other then P-1 Lo-Speed)
Code 5: Heater Operation
Option 1: Electric Heater operates with Lo-Speed Pump-1
Option 2: Electric Heater operates with Circulation Pump
Option 3: No longer used **
Option 4: Electric Heater operates with Timed Circulation Pump ***
**- The Air Blower will engage (purge) for a minute during filtration to push any
stale water out of the blower’s plumbing and back into the spa for filtration.
** - On newer units, this option is no longer selectable.
*** - When setting Code 5 to Option 4 it is important to make sure that Pump-1
is wired as a single speed (Hi-Speed) pump - and not connected to the
red (Lo-Speed) wire. In addition the Circulation Pump cord will need to be
reconfigured to use the receptacles red wire for the power line going to the
circulation pump.

T7 Topside Initial Conguration
11
Conflicting Codes
You may notice, when programming the topside that certain codes may
not be visible/selectable. This means you have another code set to an
option that conflicts with the missing option. So if you program the topside
to use an air blower or third pump on the Aux button, you will no longer see
the code option allowing the Jets-2 button to operate Lo-Speed of Pump-2
(since those functions all use the same relay). Likewise, you will not be
able to set Code 5 to Option 4 if Code 1 is set to Option 2 and/or Code 2
is set to Option 1.
Entering The T7 Topside’s Programming Mode
Once you’ve gone over the code chart and have chosen the options
you want to set for each code, follow these instructions for entering the
programming mode and setting the options. There is a 15 second time-
out delay, so taking longer then 15 seconds between steps will cause the
topside to time-out and resume normal operation.
Step 1
Press and hold for 6 seconds, until display reads
Step 2
Then lift your finger and press for another 6 seconds, until the
display reads
Step 3
Then press to see the first code
3
AUX
3
AUX
Code 1 - Option 1

T7 Topside Initial Conguration
12
Changing The T7 Topside’s Configuration Codes
Once you have entered the programming
mode, you will have Code 1 and the
Option it is set to on the display. This
is displayed as ‘C-O’, where C is the
current Code, and the O is the currently
selected/enabled Option for that code.
While in programming mode the same
15 second time-out applies, if you take
longer then 15 seconds to change a
code’s selected option or cycle through to the next code, all settings will
be saved and the topside will time-out and resume normal operation.
While in Programming Mode
Press to change the selected Option of the displayed Code
Press to cycle to the next Code
Or press to save all settings and exit Programming Mode
3
AUX
Currently Displayed Code
Currently selected Option

User Congerable Settings
13
T7 User Settings Menu
The T7’s user settings menu is home to all of the user configurable settings
of the T7 topside. The Heating Mode setting is the first setting in the user
settings menu. See the following page for a full menu tree.
Later in this section the individual settings will be explained in further detail.
What follows are general instructions on getting into, maneuvering, and
making and saving changes to these settings, which will be referenced
throughout this section.
Entering the User Settings Menu
Step 1
Press and hold for 6 seconds until display reads
Step 2
Then lift your finger, and press to see the first setting.
Using the User Settings Menu
Press to cycle through the different settings
Press to cycle through the displayed setting’s options
Press
3
AUX
3
AUX
to save your settings and exit - or - let the topside time-
out and save the settings and return to the temperature
display on its own (in about 15 seconds).

User Congerable Settings
14
T7 User Settings Menu Tree
Standard Economy
or
1 Cycle Per Day 2 Cycles Per Day
or
Fahrenheit Celsius
or
0 Hours Per Day 12 Hours Per Day
to
24 Hours Per Day
or
Start At Once Start In 12 Hours
to
Start In 24 Hours
or
Heating Mode
Filtration Cycles Per Day
Hours Of Filtration Per Day
Next Filtration Cycle Start Time
Temperature Display
User Settings
If 1 Cycle Per Day
If 1 Cycle Per Day
Buzzer ON Buzzer OFF
or
Buzzer (when buttons are pushed)

User Congerable Settings
15
T7 Heating Modes: ‘Standard’ and ‘Economy’
The T7 is set by default to operate in ‘Standard’ heating mode. This means
that when the temperature of the water in the spa drops below the set
temperature, the control automatically start heating, bringing Lo-Speed of
Pump-1 (if there is no 24 hour Circulation Pump) on as necessary. If there
is a Circulation Pump, but control has been set/wired for timed operation,
then the control will automatically bring it on as needed for heat. When the
control is heating, the ‘Heat’ indicator light will be lit, and the display will
flash between the current temperature and ‘HEt’
The T7 can also be set to operate in ‘Economy’ heating mode, where the
heater will only maintain the set temperature when Lo-Speed of Pump-1
is manually activated (if there is no Circulation Pump), or during filtration
cycles. In ‘Economy’ mode, if the current temperature falls below the set
heat temperature, the ‘Heat’ indicator light will flash to let you know that
the unit would be heating if not in Economy Mode.
Note: If you have a Circulation Pump that operates 24 hours a day, economy
mode will not effect heating behavior, and the control will continue to heat
as needed to maintain the set temperature.
T7 Filtration Cycle Operation
By default, the T7 topside will call for the control to filter the spa a total
of 4 hours a day, split into two filtration cycles. It is during these filtration
cycles that the control will run the spa’s ozonator, if one is installed. The
first 2 hour filtration cycle will start 1 hour after power is first supplied to
the control. It is possible to change the number of filtration cycles a day
(between 1 or 2), the number of total hours of filtration a day, and the start
time of the next cycle. When cycling twice a day the next cycle will start 12
hours from the start of the previous cycle, and when cycling once a day
the next cycle will start 24 hours after the previous cycle. Should the unit
lose power, upon reset it will remember the number of filtration cycles and
duration, but default the start time of the next cycle to 1 hour after power is
restored. During filtration cycles, the display will flash between the current
temperature and ‘ ’ to indicate a filtration cycle is in progress.

User Congerable Settings
16
Changing Filtration Cycle Settings
The filtration settings can be changed by following the instructions on
entering and changing settings in the T7’s user settings menu found earlier
in this section. What follows is a description of what the filtration related
settings are and the options you can select for each of those settings:
Filtration Cycles Per Day [ or ]:
The number of filtration cycles per day. You can select between 1 cycle a
day, or two cycles per day.
Hours Of Filtration Per Day [ or ]:
The total number of hours the control should filter per day. If the T7 set to
the default of 2 cycles per day, any even number of hours 0 through 12
may be selected. If the T7 is set for 1 cycle a day, 0 through 24 hours of
filtration may be selected.
Next Filtration Cycle Start Time [ - or - ]:
The number of hours until the next filtration cycle starts. If the T7 set to the
default of 2 cycles per day, 0 through 12 may be selected. If the T7 is set
for 1 cycle a day, 0 through 24 hours may be selected.
Changing the Temperature Display Setting
The T7 topside can display the temperature in either Fahrenheit or Celsius.
The default setting is Fahrenheit, which can be toggled to Celsius.
Changing the Buzzer Setting
By default the T7 topside will sound an internal buzzer when a button
press is registered. Simply toggle this code off to disable the buzzer.
A video walking through configuring the T7’s user configurable settings
can be found on YouTube at the following URL:
http://youtu.be/7BLzlTHmEOQ

Operation Instructions
17
Setting the Temperature
The temperature may be set to heat the spa water between 40°F (4°C)
and 104°F (40°C).
Pressing or
When the control is heating...
When the control is heating, the heater indicator light under the display
will be lit, and the display will flash between the current
temperature and ‘HEt’ as shown. If the indicator light
is flashing, this indicates the control would be heating,
but is currently set to economy mode.
displays the currently set temperature
for approximately 4 seconds.
While the currently set temperature is being displayed:
Press to increase the set temperature. You can press and
release right away to raise the setting incrementally
by one degree, or keep the button pressed to scroll
through higher temperature settings and release the
button once the desired temperature is displayed.
Press to increase the set temperature. You can press and
release right away to raise the setting incrementally
by one degree, or keep the button pressed to scroll
through higher temperature settings and release the
button once the desired temperature is displayed.

Operation Instructions
18
Operating Pump-1
The operation of Pump-1 depends on the configuration of your control:
Pump-1 Operation on Single Pump Systems
Press to toggle Hi-Speed between On/Off.
(Will override Lo-Speed, if on)
Press to toggle Lo-Speed between On/Off.
(Will override Hi-Speed, if on)
Pump-1 Operation on Dual (or Triple) Pump Systems
Press to toggle between Lo-Speed/Hi-Speed/Off.
Whenever Hi-Speed of Pump-1 is running the ‘Jets-1’ indicator light will
be lit. Likewise, whenever Lo-Speed of Pump-1 is running the ‘Jets-1’
indicator light will flash.
Pump-1 will automatically shut off after 30 minutes of operation when
turned on manually. Should a system that uses Pump-1 for heating/
filtration enter a heat or filtration cycle during manual operation of Pump-
1, the pump will continue low speed operation until the cycle is complete.
JETS 1
2
JETS 2
JETS 1

Operation Instructions
19
Operating Pump-2 (If Applicable)
If your control is configured for a secondary pump, it’s operation depends
on if it’s configured to run a single speed Pump-2, or dual speed Pump-2:
Single Speed Pump-2 Operation
Press to toggle between On/Off.
Dual Speed Pump-2 Operation
Press to toggle between Lo-Speed/Hi-Speed/Off.
In the Single Speed Pump-2 configuration the ‘Jets-2’ indicator light will be
lit when Pump-2 is on. In the Dual Speed Pump-2 configuration, when Hi-
Speed is running the ‘Jets-2’ indicator light will be lit. Likewise, whenever
Lo-Speed of Pump-2 is running the ‘Jets-2’ indicator light will flash.
Pump-2 will automatically shut off after 30 minutes of operation.
2
JETS 2
2
JETS 2