Hidrotermal HS Series User manual

POOL & SPA HEATER
HS Series
USER MANUAL

1. Parameters
Model Power
Kw
Voltage V
(50/60Hz) Current A Power wire
N*mm2
Pipe
Diameter
Dimension
Mm
Hidro-HS5.5 5.5 220-240V 25 3*6.0
11/2''
480*100*360
380-415V 3N 9 5*2.5
Hidro-HS7.5 7.5 220-240V 34 3*10.0
380-415V 3N 12 5*4.0
Hidro-HS9.0 9.0 220-240V 41 3*10.0
380-415V 3N 14 5*4.0
Hidro-HS11 11 220-240V 50 3*10.0
380-415V 3N 17 5*4.0
Hidro-HS15 15 220-240V 68 3*16.0
380-415V 3N 25 5*6.0
Hidro-HS18 18 380-415V 3N 28 5*6.0
655*330*330
Hidro-HS20 20 380-415V 3N 30 5*6.0
Hidro-HS24 24 380-415V 3N 37 5*10.0
Hidro-HS30 30 380-415V 3N 46 5*10.0
Hidro-HS36 36 380-415V 3N 55 5*16.0
Hidro-HS40 40 380-415V 3N 62 5*16.0
2''
Hidro-HS45 45 380-415V 3N 68 5*16.0
Hidro-HS50 50 380-415V 3N 76 5*25.0
Hidro-HS55 55 380-415V 3N 85 5*25.0
Hidro-HS60 60 380-415V 3N 92 5*25.0
Hidro-HS72 72 380-415V 3N 112 5*25.0
2. Installation
This product can be installed indoors or outdoors, fixed on a smooth and flat surface. Refer to Figure 1 for
correct installation and connection with the filtration system. Leave at least 200 - 300 mm space above and
around the heater for maintenance and repair.
Note:
a.SHUT OFF the power supply before installation or maintenance.
b.The power supply must be in accordance with the parameters on the nameplate.
c.Inlet water pressure should be less than 0.2MPa.
d.Proper grounding is important. Make sure to connect the ground wire to the terminal labeled.
e.The power supply must be single phase with three wires (L,N) or three-phase with five wires (L1,L2,L3,N).
The heater can be connected to 220 - 240V 50/60Hz or 380 - 415V 3N~ 50/60Hz power supply.Connection of
220 - 240V (L1)could refer to the wiring of single phase with three wires.
f.A Ground Fault Circuit Interrupter (GFCI) must be installed.
g.Carefully check the wiring and connections of the heater before installation to avoid any damage or accident
caused by loosing part due to transportation.
1
Figure 1
Plumbing connection

3. Electrical wiring and Exploited diagram
2
Figure 2
Hidro-HS5.5/Hidro-HS7.5/Hidro-HS9.0/Hidro-
HS11/Hidro-HS15 Wiring diagram 220-240V
50/60Hz

3
Figure 3
Hidro-HS5.5/Hidro-HS7.5/Hidro-HS9.0/Hidro-HS11/Hidro-
HS15 Wiring diagram 380-415V 3N~ 50/60Hz

4
Figure 4
Hidro- HS18/Hidro-HS20 Wiring diagram
380-415V 3N~ 50/60Hz

5
Figure 5
Hidro-HS24/Hidro-HS30 Wiring diagram
380-415V 3N~ 50/60Hz

6
Figure 6
Hidro-HS36/Hidro-HS40 Wiring diagram
380-415V 3N~ 50/60Hz

7
Figure 7
Hidro-HS45/Hidro-HS50/Hidro-HS55/Hidro-HS60、Hidro-
HS72 Wiring diagram
380-415V 3N~ 50/60Hz

Item Product Description
1 Shell
2 Ground terminal
3 Wire hole
4 Relay
5 Controller
6 Circulating indicator
7Reset button for temperature switch
Water outlet
8 Connector
9 Water inlet
10 Ground terminal
11 Heating indicator
12 Temperature sensor
13 Tank
14 Reset button for temperature switch
15 Heating elements
Item Product Description
1 Shell
2 Relay
3 Fuse
4 Wiring terminal
5 Ground terminal
6 Fuse
7 Temperature sensor
8 Heating indicator
9 Circulating working indicator
10 Hidro-HS controller
11 Wire hole
12 Water outlet
13 Water inlet
14 Switch for controller
15 Wiring terminal
16 Inner tank
17 Temperature switch
18 Heating element
8
Figure 8
Figure 9
Figure 10
HS series Exploited
Diagram
Figure 11
HS series Exploited Diagram

4. Operation instructions
a.Check the circulation system first before turn on the heater.
b.Never disassemble the heater when connecting to power supply.
c.Never turn on the heater without water.
d.No power switch is designed for the heater. The front panel switch can only turn off the controller,
thus you should cut off the main power supply before performing maintenance or repair.
e.Proper grounding is important.
f.Start the circulation pump for at least 2 minutes before turn on the heater, and turn off the
circulation pump at least 2 minutes after turn off the heater.
g.Once unexpected high temperature 60 ℃ (140 ℉) occurs, the temperature switch cuts off the
system. You need to cut off the main power supply, resolve the fault and wait the temperature to fall
below normal temperature, then press the ‘Reset’ button to restart the heater.
1)Control system automatically heat-up procedure
Preparation stage
Once reconnected to power or if the water temperature is 1℃ below the user setting temperature at least 10
minutes after entering the waiting stage, the heater enters the preparation stage. Indicator 1 in Figure 10 blinks
shows that circulation pump is turned on for models with circulation pump control. ‘PUMP WORKING’ indicators
in Figure11 and Figure 12 turn on as well. If hint message ‘ PPc ’ does not appear on the panel within 2
minutes, and the water temperature is 1℃ below the user setting temperature after 2 minutes, the heater enters
next stage pre-heat stage.
Pre-heat stage
In this stage, heater heats up for 10 seconds and waits for 90 seconds. Indicator 1 in Figure 10 turns on for 10
seconds then blinks. ‘ Heating ’ indicators in Figure11 and Figure 12 turn on for 10 seconds as well. If hint
message ‘ HFL ’ does not appear on the panel and the water temperature is 1 ℃ below the user setting
temperature, heater enters next stage heat-up stage.
Heat-up stage
In this stage, all heating elements turn on, and heating indicator turns on as well. If hint message ‘FL’ does not
appear, heater will heat up to 1 ℃ above the user setting temperature, then heating indicator blinks for 2
minutes. After that, circulation pump turns off for models with circulation pump control. Heater enters next stage
waiting stage.
Waiting stage
Waiting stage lasts for at least 10 minutes. 10 minutes later, if the water temperature is 1 ℃ below the user
setting temperature, the heater jumps to preparation stage, otherwise, it remains in the waiting stage.
2)Control panel functions
▲ Increase the user setting temperature by 1℃ or 2℉.
▼ Decrease the user setting temperature by 1℃ or 2℉.
3)Switching button
a.Switch between temperature unit: Press # button for more than 3 seconds，panel displays ℃ and ℉ in turns.
Release the button once the unit you wish to choose appears, 5 seconds later, panel restore to display the
current water temperature.
b.Switch between temperature sensors: Press # button, the panel will blink and display temperature measured
by temperature sensor 2. After 5 seconds or press the # button again, panel will restore to display current water
temperature which is measured by temperature sensor 1.
9
NOTE
The automatically heat-up process is non-stopping and will continue to
circulating through all stages until the control system or heater is power off.

Heat-up stage
In this stage, all heating elements turn on, and heating indicator turns on as well. If hint message ‘FL’ does not
appear, heater will heat up to 1 ℃ above the user setting temperature, then heating indicator blinks for 2
minutes. After that, circulation pump turns off for models with circulation pump control. Heater enters next stage
waiting stage.
Item Product Description Item Product Description
1 Indicator 1 Heating indicator
2 Display 2 Circulation indicator
3 Up button 3 Controller
4 Down button
5 Switch button
4)Temperature display and setting
a.Temperature display range: 6℃～53℃ or 43℉～127℉.
b.Temperature setting range: 22℃～50℃ or 72℉～122℉，factory default temperature is 42℃.
c.Set the temperature:
Press▲ or ▼ button to increase or decrease the setting temperature by 1℃(2℉) ， and the panel blinks and
display the setting temperature. 5 seconds later, the panel stops blinking, confirm the setting change and
restore the current temperature display.
d.If reconnected to power, the user setting temperature is set to default temperature 42℃.
5)Unique control system
a.The flow-temperature sensor is always under the control of software, accurately monitoring the temperature
status of the whole system, and then adjust the settings to maintain the water temperature and protect the
heater from unexpected situations.
b.No mechanical sensors, avoid any mechanical failure to affect the function of the heater.
c.Avoid affection of ion accumulation to mechanical sensors.
d.Greatly reduce unnecessary circulation cycles, prolong the life of circulation pumps and
save more energy.
6)Intelligent self-diagnose function
a.The control system keeps on monitoring the running status of every parts of the heater, and quickly reacts
and displays corresponding hint message for any incident, so as to avoid any damage or malfunction happens.
b.If any fault happens, the heater is stopped immediately, and corresponding hint message will display on the
panel for user or technician to decide where the fault is.
10
Figure 12 Hidro-HS Controller
Figure 13 HS Controller Panel
Figure 8 Controller

5. Maintenance and Troubleshooting
1)Important:
a.If unexpected high temperature occurs and the temperature switch cuts off the system, please cut off the
power supply immediately; and do not restart system until the fault has been resolved. Only press the ‘RESET’
button after water temperature falls to normal range.
b.If any leakage occurs, repair first before any operation.
c.The temperature switch will cut off the system if temperature is higher than 60℃(140℉).
d.If hint message appears, please refer to the list below for solution.
2)Explanation of hint message：
Temperature is higher than 53 ℃ (127 ℉), stop heating up and force to start
circulating. Remind user to check the system.
System will automatically restart after temperature falls below 51℃(124℉).
Temperature is higher than 55 ℃(131 ℉), stop heating up and force to start
circulation. Remind user to check the system.
Press any key to restart the system after temperature falls below 51℃(124℉).
Temperature is lower than 6 ℃(43 ℉). Force to start circulation. Remind user to
check the heating elements andrelays. 1 minutes after temperature rising above to
8℃(46℉), system automatically prepare to heat up.
Temperature is extremely low. If message ‘ Lc ’ appears for more than 10
minutes, ‘ Lc ’ start to blink. Force to start circulating. Remind user to check
temperature sensor, heating elements, relays and pumps. 1 minutes after
temperature rising above to 8℃(46℉), press any button to restart the heater.
In the preparation stage, the temperature sensors must be balanced to start heating
up. If the temperature sensors are balanced within 10 minutes, ‘ PPc ’ message
disappears and heater will circulation for 2 minutes then enter to next stage.
‘ PPc ’ lasts for more than 10 minutes, shows that sensors cannot be balanced.
Remind user to check the temperature sensors and circulation pump. Press any
button to restart the preparation stage after the sensors are balanced.
Possibility of plumbing blockage or lack of water in pre-heat stage. Remind user to
check the water supply, water pump and valves. Press any button to restart the
system or system automatically restarts after 10 minutes.
‘HFL’message continues to appear for three times (can not enter heating-up stage
from pre-heat stage). Remind user to cut off power and check water supply, water
pump and valves. Then reconnect to power and restart the system.
Water flow is too low in heating-up stage, heater stop heating up. Remind user to
check water supply, water pump and valve. System restarts automatically after 1
minute.
If ‘FL’message appears for 5 times in heating-up stage, ‘FL’ starts to blink. Remind
user to cut off power and check water supply, water pump and valves. Then
reconnect to power and restart the system.
Temperature sensor Rt1 fault, Remind user to cut off power and replace
temperature sensor Rt1. Then reconnect to power and restart the system.
Temperature sensor Rt2 fault, Remind user to cut off power and replace
temperature sensor Rt2. Then reconnect to power and restart the system.
11
Figure 8 Controller

3)Maintenance of heater
Maintenance:
a.Keeps the heater clean.
b.Chemicals usage under normal water quality：
A balanced water condition is important to prolong the life of heater. If Reduce scale to protect heater been
corroded.
Chemicals can be used to keep water clean, maintain a balanced PH value and control the concentration of Ca,
Mg irons.
Warning:
a.Heater can not be installed in a circulation system with water flow larger than 120 gal/min or water pressure
larger than 1.2kg/cm2.
B.Never block the outlet otherwise will damage the heater.
c.Heater can not be installed in a massage system.
6. Warning
12
Figure 8 Controller
Heater can only be reset when temperature falls below normal
temperature.
Maintenance or repair can only been performed by licensed professionals to avoid
hazards.
Checking, maintenance and repair can only be performed with the main power
supply been cut off.
Only original heating elements and other accessories are recommended. Any
damages caused by not using original accessories are not covered by the warranty.