Therma Q TechPaq User manual

Owners Manual
TechPaq Spa Pack
Manufactured by:
Thermaq Corporation
www.thermaq.com

IMPORTANT SAFETY INSTRUCTIONS: READ AND FOLLOW ALL INSTRUCTIONS
WARNING The following “Safety Rules for Hot Tubs,” recommended by the U.S. Consumer Product
Safety Commission, should be observed when using the spa to reduce the risk of injury:
1. The water in a pool or tub should never exceed 104°F (40°C). A water temperature higher than
104°F is considered unsafe for all persons. Lower water temperatures are recommended for
extended use (exceeding 10 – 15 minutes) and for young children.
2. Pregnant women: Soaking in water above 102°F (38.5°C) can cause fetal damage during the first
three months of pregnancy (could result in the birth of a brain damaged or deformed child). If
pregnant women are going to use the spa or hot tub, they should make sure the water temperature is
below 100°F (38°C) maximum.
3. Before entering a spa, the user should measure the water temperature at several occupant
locations using an accurate thermometer since the tolerance of water temperature-regulating
devices may vary as much as ±5°F (±3°C).
4. Alcohol, drugs, or medication should not be used before or during pool or tub use since their use
may lead to unconsciousness with the possibility of drowning.
5. Persons with obesity or a medical history of heart disease, diabetes, circulatory or blood pressure
problems should consult their physician before using a hot tub or spa.
6. Persons using medication should consult a physician before using a pool or tub since some
medication may induce drowsiness while other medication may affect heart rate, blood pressure,
and circulation.
WARNING – The use of alcohol, drugs, or medication can greatly increase the risk of fatal
hyperthermia in pools and tubs.
NOTE: Hyperthermia occurs when the internal temperature of the body reaches a level several
degrees above the normal body temperature of 98.6°F. The symptoms of hyperthermia include
dizziness, fainting, drowsiness, lethargy, and an increase in the internal temperature of the body. The
effects of hyperthermia include (1) unawareness of impending hazard, (2) failure to perceive heat, (3)
failure to recognize the need to exit pool or tub, (4) physical inability to exit pool or tub, (5) fetal
damage in pregnant women, and (6) unconsciousness resulting in a danger of drowning.
WARNING ELECTRICAL SHOCK HAZARD.
This heater contains wiring that carries high voltage. Contact with these wires may result in severe
injury or death. Basic safety precautions should always be followed, including the following:
All 120V spas require a DEDICATED 20 AMP CLASS A GFCI SERVICE. All 240V spas require a
DEDICATED CLASS A GFCI SERVICE. Do not use extension cords. NOTE: A licensed electrician
may be required to upgrade your standard receptacle and/or circuit breaker.
DANGER -- RISK OF ELECTRIC SHOCK: Do not permit any external electrical appliances, such as
lights, telephones, radios, televisions, and etc., within 5 feet (1.5 meters) of the spa. Never attempt to
operate any electrical device from inside the spa. This does not apply to lights, stereos and
televisions that are built in to the spa as factory options.
DANGER -- RISK OF ELECTRIC SHOCK: The spa should be at least 5 feet (1.5 meters) from all
metal surfaces. As an alternative, a spa may be installed within 5 feet of metal surfaces if each metal
surface is permanently bonded by a minimum #8 AWG solid copper conductor to the outside of the
spa’s control box.
A green terminal (or wire connector marked "G", "GR", "GROUND" or "GROUNDING") is provided
within the control box. To reduce the risk of electric shock, connect this terminal or connector to the
grounding terminal of the electric service or supply panel with a continuous copper wire in accordance
with the NEC.
MAINTENANCE WARNING: ONLY QUALIFIED PERSONNEL SHOULD ATTEMPT MAINTENANCE
ON THIS EQUIPMENT(N.E.C. ARTICLE 100-1971) (MAINTENANCE MUST BE DONE WITH MAIN
DISCONNECT OPEN) SAVE THESE INSTRUCTIONS

TechPaq OPERATING INSTRUCTIONS
The mode switch setting, timeclock settings, and thermostat setting, all affect how your new TechPaq
will control filtering and heating of your Spa. This allows you to optimize the operation of your Spa for
your particular Spa usage preferences and climate as well as accommodating seasonal variations.
Thermostat: The thermostat controls the temperature setpoint of your spa. Its range is approximately
55 to 104 degrees F. Your spa should reach the temperature setpoint within 24 hours if it is covered
and operating properly. Rotate the thermostat knob clockwise to increase the temperature setpoint.
Rotate the thermostat knob counter-clockwise to decrease the temperature setpoint.
WARNING: DRY FIRING
Never allow the heater to turn on when the spa is not completely filled with water. Disconnect the
power cord or turn off the circuit breaker before draining the water from your spa. Do not rely on the
thermostat to prevent the heater from turning on. When re-filling the spa insure that the spa is
completely filled and water also fills the heater vessel before reconnecting the power cord or turning
the circuit breaker on. Energizing the heater when it is not fully immersed in water (dry firing) can burn
out the heater within seconds. Damage caused by dry firing the heater is not covered by the warranty.
Units With Timeclock Option
Timeclock Settings: Time of Day: Rotate the dial of the timeclock until the clock hands on the front
of the timeclock are aligned to the correct time and the correct hour for AM or PM is aligned with the
indicator arrow on the front of the timeclock.
Timeclock Settings: ON/OFF Settings: The timeclock has 96 timer pins on its front dial. Each pin
lines up with a certain time on the dial and controls whether the timeclock is ON or OFF during that
time each day. When any timer pin is pressed IN towards the center of the dial then the timeclock will
be OFF for that 15 minute interval. When any timer pin is pressed OUT away from the center of the
dial then the timeclock will be ON for the corresponding 15 minute interval. To set the timeclock ON
continuously set ALL the timer pins OUT. For OFF continuously set ALL the timer pins IN.
Mode switch Settings: Position 1: When the mode switch is in position 1 the low speed pump will
be ON for filtering whenever the timeclock is ON. Additionally the timeclock must be ON to enable the
thermostat to activate the heater.
Mode switch Settings: Position 2: When the mode switch is in position 2 the low speed pump will
be ON for filtering whenever the timeclock ON. Additionally the thermostat will activate filtering and
heating whenever the water temperature falls below the thermostat setpoint.
Units Without Timeclock Option
Mode switch Settings: Position 1: When the mode switch is in position 1 the thermostat will
activate filtering and heating whenever the water temperature falls below the thermostat setpoint.
Mode switch Settings: Position 2: When the mode switch is in position 2 the low speed pump will
be ON for filtering continuously. Additionally the thermostat will activate heating whenever the water
temperature falls below the thermostat setpoint.
Heater Reset: If the temperature of the water in your spa exceeds approximately 115 degrees F then
the high limit will activate and disable the heater. Depress the red heater reset button to re-enable the
heater. Persistent or repetitive activation of the high limit indicates a problem with your spa requiring
diagnosis and correction by a spa repair professional.
Heater Indicator: This lamp will illuminate whenever the heater is activated.
Selecting Your Optimum Operating Settings
There are several things to consider in selecting your operating settings including energy efficiency,
effect on water chemistry and condition, and wear on equipment. The tables below show the possible

operating settings. Unless your spa is shut down for an extended period the thermostat should always
be set for the desired water temperature.
Table1: Units Without Timeclock Option
Mode Switch Comment
Position 1 Maintains desired water temperature continuously, cycles pump more frequently
Position 2 Continuous filtering can improve water condition, no pump cycling, maintains desired
water temperature continuously
Table 2: Units with Timeclock Option
Mode Switch Timeclock Comment
Position 1 Programmed Operating
Times Heater only activates during desired operating times to reach temperature setpoint, can minimize pump cycling
and prevent noise from equipment at night.
Position 1 Always on Continuous filtering can improve water condition, no pump
cycling, maintains desired water temperature continuously
Position 2 Always Off Maintains desired water temperature continuously, cycles
pump more frequently and at various times during the day
and night
Position 2 Programmed Operating
Times Maintains desired water temperature continuously but cycles equipment at various times during the day and
night, additional filtering during programmed operating
times can improve water condition
SPA WATER CHEMISTRY
Chemical imbalance can cause serious damage to your heater and other equipment. Maintain your
water chemistry according to the chart below. If the mineral content and dissolved solids in the water
become too high, scale forms inside the heater, reducing efficiency and damaging the heater. If the
pH drops below 7.4, the heater can be damaged by corrosion. Also free chlorine levels over 3.0 ppm
can cause corrosion. Damage resulting from chemical imbalance is not covered by the warranty.
Table 7. Recommended Chemical Concentration Levels
Test Recommended Level
Free Chlorine or 1.5 to 3.0 ppm
Bromine 2.0 to 4.0 ppm
pH 7.3 to 7.8
Total Alkalinity (TA) 80 to 120 ppm (parts per million)
Calcium Harness (CH) 200 to 400 ppm (part per million)
Total Dissolved Solids (TDS) Less than 2000 ppm (parts per million)
Copper 0 ppm (parts per million)
Water Temperature (deg F) 89 degrees F to 104 degrees F
Salt 6000 ppm maximum
FILTER CLEANING
CAUTION: Do not allow your Spa’s filter to become clogged. A badly clogged filter can cause
excessive wear on the equipment in your spa pack or other equipment in your spa. Damage caused
by a clogged filter is not covered by the warranty.
Copyright © 2003-2006 by Thermaq Corporation, Everett Washington, USA