HU2 Spa Owner’s Manual 1 PN 378100-2 Rev J Domestic
OWNER’S INFORMATION DEALER Company Address Phone E-mail ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ INSTALLER Company Address Phone ___________________________________________________________________ ___________________________________________________________________ _____________
TABLE OF CONTENTS IMPORTANT SAFETY INSTRUCTIONS……………………………………………………………………………………………………………………………………4-6 SELECT A LOCATION……………………………………………………………………………………………………………………………………………………………..7 FILLING YOUR SPA………………………………………………………………………………………………………………………………………………………………..8 DRAINING YOUR SPA……………………………………………………………………………………………………………………………………………………………8 SYSTEM OPERATION………………………………………………………………………………………………..…………………………………………………………..9-10 DISPLAY MESSAGES…………………………………………………………………………………………………………………………………………………..
Important Safety Instructions When installing and using this electrical equipment, basic safety precautions should always be followed, including the following: READ AND FOLLOW ALL INSTRUCTIONS 1. WARNING: To reduce the risk of injury, do not permit children to use this product unless they are closely supervised at all times. 2. WARNING: A wire connector is provided on this unit to connect a minimum 6 AWG (4.
d. The use of alcohol, drugs, or medication before or during spa use may lead to unconsciousness with the possibility of drowning. e. Persons suffering from obesity or with a medical history of heart disease, low or high blood pressure, circulatory system problems, or diabetes should consult a physician before using a spa. f.
19. WARNING: The use of alcohol, drugs, or medication can greatly increase the risk of fatal hyperthermia in hot tubs or spas. Despite the popular image of people in spas drinking wine or other alcoholic beverages, DO NOT use alcoholic beverages before or during spa use. Alcohol is a depressant which causes slowed reflexes and drowsiness, especially in conjunction with the relaxed soaking in hot water. This can lead to sleep or unconsciousness and possibly result in drowning.
Selecting electrical mode and a location Will you operate the spa on 120 or 240 volts? Your spa comes ready to plug into a standard 120 volt / 15 amp outlet for power. However, it can be converted for a 240 volt hardwired power supply installed by a licensed certified electrician. Please read the following to help with your decision. 120 volts: When connected with the 120 volt plug, the heater is 1000 watts and operates only in the low speed filtration mode.
Filling Your Spa Remove the access door (Fig 1) and assure the drain valve is closed and the cap is secure (fig 2). Place a garden hose into filter area (Fig 3) and fill the spa with cold (never warm or hot) water 6 to 8 inches (150 to 200 mm) below the top edge of the spa (Fig 2.1). Do not overfill, as the spa’s water level will rise as each person enters the spa. Always keep the spa water level above the jet openings. Fig 2 Valve Cap Fig 2.
System Operation 102 Initial Start-Up When your Spa is first activated, it will perform a self diagnostics test showing a series of numbers followed by Pr, then by -along with the low speed pump for approximately 7 minutes total. Also the internal clock that keeps track of the filtration cycles every 12 hours will start at that point. The system is preset to heat up to 100° F (37° C) and it is also preset to run on low speed for two hours (F2).
Additional Functions Spa heating modes The Heating Mode offers the ability to control your heater in special circumstances. Your spa is preset at the factory to Standard Mode. However, the Standard Heating Mode can be changed to Economy or Sleep by pressing the or then button. With each press of the buttons, the display will cycle through the three different modes described below. Standard Mode (ST): Your spa is preset to this mode.
Display Messages MESSAGE -- HH OH 1C SA Sb SN HL LF DR DY MEANING No message on display. Power has been cut off to the spa. Temperature unknown. Overheat -The spa has shut down. One of the sensors has detected 47°C (118°F) at the heater. Overheat" -The spa has shut down. One of the sensors has detected that the spa water is 43°C (110°F). Ice -Potential freeze condition detected. Spa is shut down. The sensor that is plugged into the "A" jack is not working. Spa is shut down.
FOR THE ELECTRICIAN, HU2 CONVERSION FROM 120V TO 240V The conversion of the HU2 equipment package, from a factory installed 120 volt system to a hardwired 120/240volt system, must be completed by a certified licensed electrician. This procedure will convert the heater from 120 volts (1000 watts) to 240 volts (4000 watts). All other electrical components will remain 120 volts, so it will be necessary to include a neutral wire in the new electrical service.
FOR THE ELECTRICIAN, CONVERSION FROM 120V TO 240V continued: ELECTRICAL DATA FOR THE USE OF CERTIFIED LICENSED ELECTRICIAN WARNING: Shock Hazard! Under No Circumstances Should This Spa Be Installed By Anyone Other Than A Certified Licensed Electrician! REQUIRED WIRING FOR 240 VOLT INSTALLATION All wiring MUST be in accordance with the National Electrical Code and all local codes 13
FOR THE ELECTRICIAN, CONVERSION FROM 120V TO 240V continued: DIP SETTINGS 56403-03 VERSION 03 MAIN POWER TO SYSTEM SHOULD BE TURNED OFF BEFORE ADJUSTING DIP SWITCHES DIP SETTINGS TEST MODE OFF TEST MODE ON 1 N/A N/A 2 DUPLEX PANEL MINI PANEL 3 N/A MUST BE OFF N/A MUST BE OFF 4 SEE PUMP TABLE SEE PUMP TABLE 5 60HZ OPERATION 50HZ OPERATION 6 STD, ECON, SLEEP ALLOWED STANDARD MODE ONLY 7 DEGREES FAHRENHEIT DEGREES CELSIUS 8 SEE PUMP TABLE SEE PUMP TABLE 9 HIGH AMP – HEAT W/P1 HI LOW AMP –
Equipment Operation Air Injection Venturi Adjustment Air injection into the massage jet water flow may be controlled by turning the venturi dials located on either side of the spa. Surface Skim Filter The spa’s automatic surface skim filter is designed to remove floating debris and contaminants such as body lotions by drawing water through a specially formulated filter cartridge. It is critical that this element be routinely cleaned.
Water Chemistry Spa water chemistry (or water balance) affects the safety of your equipment as well as the appearance of your spa water. Water balance has five factors: pH, total alkalinity, calcium hardness, temperature and total dissolved solids. pH is the most critical but total alkalinity and calcium hardness must also be watched closely. Low calcium hardness can lead to corrosion of equipment, while high calcium hardness can lead to scaling, cloudy water and staining.
Water Chemistry (Continued) It is recommended that the spa be drained regularly depending on its size, location and the frequency of use. 1. Clean filter and cartridge periodically according to manufacturer’s instructions. 2. Keep the spa covered when not in use to reduce the loss of heat and to keep our leaves, dirt, and other foreign materials from settling in the water. 3.
Replacing the LED light. 1. Turn off power to the spa. 2. Using a Philips screwdriver, remove the access vent located on the outside of the spa, directly behind the filter (Fig 7.1). 3. Reach in and turn the white holder counter clockwise and gently pull it, with the attached wires, out the access hole (Fig 7.2). 4. Pull the LED light out of the light socket (Fig 7.3). 5. Install a new LED light, attach the white reflector turning clockwise and reattach the access vent with the screws.
Freeze Protection DO NOT ALLOW THE SPA TO FREEZE If the spa is to be stored or transported in temperatures of 32°F (0°C) or lower, it is critical that the unit be fully winterized. To winterize the spa follow these steps: 1 2 3 The spa itself must be completely drained of water. See page 8 for draining instructions. The drain valve must be in the open position and the cap removed. Drain the pump. Remove the pump wet end drain plug (Fig 6.1). Leave this plug out until it is time to refill the spa.
Most Frequently Asked Questions 1. Why does my spa not shut off? Your spa is designed to run from the time you plug it in to run until it reaches your desired temperature. Once desired temperature is reached then you can control the on/off with the buttons on the top control. For example: On the initial startup the spa will run for approximately 18 hours to reach 38°C (100°F). At that point the spa will shut off, and then the spa will maintain your desired temperature settings.
PURGING THE PUMP Sometimes after a water change (draining and refilling the spa), or initial start-up of the spa, there is no water flowing from the jets. You may hear the pump operating or even see the shaft of the pump motor turning, but have no water flowing from the jets. In addition to no flow out of the jets, you may even see an error message dr, dY, HH, OH, HL, or LF. All of these error messages can be caused by a lack of water flow. When this happens there is probably an air-lock in the pump.
Troubleshooting Guide SITUATION PROBABLE CAUSE ACTION NO HEAT OR HEAT TOO LOW Operating while spa cover is open. Ensure that spa cover is properly closed. Dirty filter Remove filter cartridge and clean. JETS WON’T COME ON No power to spa control. Check the GFCI plug, circuit breaker and/or disconnect switch. NO CONTROL DISPLAY OR FUNCTIONS No power to spa control. Check the GFCI plug, circuit breaker and/or disconnect switch. LOW WATER FLOW Dirty filter. Remove filter cartridge and clean.
Glossary of Terms Venturi dials Mounted on the lip of the spa or at the equipment shroud, to induce air to the jets. BYPASS CHECK VALVE Prevents water flow stoppage due to dirty filter. CONTROL BOX Basically the brain of the spa. Power is distributed to all functions of the spa, pumps, lights, heat, etc. DRAIN VALVE Used in the draining of the spa, looks like an outdoor faucet and fits a standard garden hose.
Warranty *Limited Warranty-Non-transferable-Original Purchaser Only* 1. 5 Year Spa Shell – Should a crack in the shell result in a loss of water through the shell, ROTO OPS LLC, will, at its option, repair or replace the shell portion of the spa. Freight costs shall be shared with the consumer; ROTO OPS LLC will pay freight costs to ship shell to ROTO OPS LLC facilities, consumer will be responsible for freight costs to ship new shell back to consumer. 2.
