Joven JH Series User manual

• INSTRUCTION MANUAL MODEL: JH & JVA
CONNECTION OF OVERFLOW PIPE
3.3
1. Open control valve in cold water supply line and all hot water faucets to allow trapped air to be vented out from
the heater tank and piping.
2. Allow the heater tank to completely fill with water as indicated by a steady flow of water from the hot water
faucets without switching on the electrical supply.
3. Turn off all hot water faucets. Check all pipe connections to ensure that they are properly sealed against
leakage.
TO FILL HEATER TANK
FIGURE C: PIPING DIAGRAM
A. Cold Water Inlet from Main Supply / Water Tank
B. Control Valve (Not Included)
C. Single or Double Check Valve (Not included)
D. Pressure Relief Valve
E. Drain Valve (Must not be closed / blocked)
F. Overflow Pipe to Drain or floor trap
G. Hot Water Outlet to Mixer Tap
min 500mm
A
B
F
C
G
D
E
Refer to Figure A
for Mounting
Ring Position
min 500mm
AB
F
C
G
D
E
© copyright 01/2012-02 JOVEN
PRODUCT WARRANTY
9
TROUBLESHOOTING
8
MAINTENANCE
7
SCHEMATIC WIRING DIAGRAM
5
WIRING CONNECTIONS
4
OPERATION
6
1. This warranty does not cover lightning, natural disaster, pest attacks, fire, negligence, misuses, accidents,
floods, pollution, abuse or neglect, improper installation or improper maintenance and abnormal voltage or
the usage of generator.
2. Failure to follow the installation manual.
3. Repair or attempted to repair this product by anyone not authorised by JOVEN.
4. Any unit which has been altered or on which the serial number has been defaced, modified or removed.
5. Water supply exceed 20mg/litre (20ppm) Chloride.
WARRANTY VOID
* Note: Refer to your local distributor for warranty terms & conditions
NEVER TRY TO REPAIR THE UNIT YOURSELF.
IMPORTANT
SYMPTOMS
A. No water coming out of
the heater
B. Water heater is not
working
C. Water not hot enough
POINT TO CHECK FOR REMEDY
1. Check the following points for better performance:
• Check whether all stop valves are opened.
• Check whether the water supply is there.
• Check whether the Pressure Relief valve over tighten.
• Check whether Inlet water supply connected to Pressure Relief Valve.
• Check whether power supply is ON.
• Is the main lamp ON.
• Is the heater lamp ON.
• Is the adjustable temp. control ON. (JVA model)
• Is the mixer tap connected correctly.
• Is the adjustable temp. control turn to maximum. (JVA model)
• Is the mixer tap adjusted correctly.
• Is the water heater given enough time to heat up. (If the temp. reaches the
preset temp., the red heater lamp will go OFF automatically).
• Is the water heater capacity enough for the purpose
2. If any of the following abnormalities are present during usage, contact our service centres nearest to
you or your sales agent immediately:
A. Water leakage.
B. Water temperature cannot be controlled (JVA model).
C. Power and heater lamp does not light up.
Connect Overflow pipe
leading downward to
drain or floor trap
DO NOT connect
overflow pipe leading
upward
DO NOT Close or Block
Drain Valve
DO NOT connect
overflow pipe to any
valve
OUT IN
IN IN
IN
IN
Sealed
OUT IN OUT IN OUT IN
• All plumbing works must be completed and heater tank filled with water before proceeding to
electrical connections. This will prevent any damage to the unit.
• Ensure that the electrical supply is single-phase at 220 to 240 Va.c.
• It is recommended to install an approved current operated type Earth Leakage Circuit Breaker
(ELCB)or Residual Current Circuit Breaker (RCCB)of 10mA sensitivity and higher than heater rated
current. (Refer to Table 1)
• It is recommended to install an approved type Miniature Circuit Breaker (MCB)or Molded Case
Circuit Breaker (MCCB)higher than heater rated current. (Refer to Table 1)
• Ensure that the wiring can supply the necessary amperage. (Refer to Table 1 for correct cable size)
• This water heater must be permanently connected to the electrical supply through a Double Pole
Linked Switch above rated current (Refer to Table 1)and having contact separation of at least 3mm in
all poles incorporated in the fixed wiring. The switch must be out of reach from user in the bathroom.
• Do not share the electrical supply with other appliances.
• Do not switch ON if there is a possibility that the water in the heater is frozen.
• THIS APPLIANCE MUST BE PERMANENTLY EARTHED.
IMPORTANT
• Make sure the heater tank is filled with water before switching on the electrical supply.
Failure to do so will damage the heating element and void the warranty.
• To avoid the danger of scalding when operating this water heater, always turn on the cold
water faucet first and then adjust the hot water faucet to get the desired water
temperature.
• This appliance is not intended for use by young children or infirm persons without
supervision.
IMPORTANT
• After the maintenance, make sure the heater tank is completely refilled with water before
switching on the electrical supply. Heating element will be damaged if electrical supply is
switched on for even a short time while heater tank is dry or filling.
• Use any household cleaner for cleaning. Do not use abrasive cleaner or organic cleaner
(petrol or alcohol).
IMPORTANT
Fig. 1 : Recommended Electrical Connection Fig. 2 : Recommended Stripping Length
12mm Copper Wire
PVC Cable
MCB / MCCB
10mA ELCB / RCCB
Double Pole Linked Switch
Table 1 : Electrical Loading Table
Power
(kW)Voltage (Va.c.)Conductor
Size (mm2)Cable No.
(No./Ømm)Rated Current for Circuit Breaker /
Double Pole Linked Switch (A)
1.37 to 1.63
2.50 to 3.00
220 to 240
220 to 240
40/0.25
70/0.25
16
20
2.0
2.5
This water heater is completely factory wired to 3-way Connector with L(LIVE), N(NEUTRAL) and (EARTH)marking.
1. Switch off the electrical mains.
2. Remove installation cover screws of the heater.
3. Refer to Fig. 2, connect electrical wire as follow:
Brown to L (LIVE)
Blue to N (NEUTRAL)
Green / Yellow to (EARTH)
4. Ensure that the copper wires are properly tightened on the 3-way Connector.
5. Replace the installation cover.
6. Provide sticker label if two heater ON / OFF switches are used to control it.
HORIZONTAL MODEL
HEATING ELEMENT
MAINS (GREEN INDICATOR)
NC THERMOSTAT
THERMAL
FUSE
3-WAY
CONNECTOR
MAINS
SUPPLY
220-240 Va.c
NC
NC
N
N
A
A
HEATER
(RED
INDICATOR)
Sealed
JVA
The first operation and heating of the appliance must be observed by the installing technician after water and
electrical connection have been made and heater tank filled with water, before switching on the electrical supply.
The standard 3kW heating element (optional 1.5kW)together with automatic regulating thermostat (horizontal
model)and an adjustable thermostat (vertical model), heat up water faster and keeps electric consumption to a
minimum. In addition, the compact polyurethane foam insulation keeps the hot water longer and ready for
immediate use.
• Approximate time taken to heat up to 70˚C. Inlet water temperature at 27˚C.
STORAGE WATER HEATER HEATING CHART
MODEL Tank Capacity (Litres) Time Taken (Min) Replacement Rate
43˚C Rise
3 kW 240 Va.c Heating Element
- 63 litres (14 gals) per hour
1.5 kW 230 Va.c Heating Element
- 32 litres (7 gals) per hour
3kW 240 Va.c 1.5kW 230 Va.c
JH 15
JH 25
JH 35
JH 38
JH 50
JH 56
JH 68
JH 91
JVA 25
JVA 35
JVA 50
15
20
30
35
45
50
60
80
20
30
45
23
40
60
70
90
100
120
160
40
60
90
15 (3.3 Imp. Gals)
25 (5.5 Imp. Gals)
35 (7.7 Imp. Gals)
38 (8.4 Imp. Gals)
50 (11.0 Imp. Gals)
56 (12.3 Imp. Gals)
68 (15.0 Imp. Gals)
91 (20.0 Imp. Gals)
25 (5.5 Imp. Gals)
35 (7.7 Imp. Gals)
50 (11.0 Imp. Gals)
Horizontal Model Vertical Model
VERTICAL MODEL
A
B
HEATING
ELEMENT
THERMAL FUSE
ADJUSTABLE
THERMOSTAT
MAINS
(GREEN
INDICATOR)
1 2
3-WAY
CONNECTOR
MAINS
SUPPLY
220-240 Va.c
HEATER
(RED
INDICATOR)
Under higher temperature condition most water deposits lime scale. It is recommended to remove lime scale which
has accumulated on the heating element and Pressure Relief Valve.
A. To Drain Out Water
1. Switch off the electrical supply.
2. Open any mixer tap to release some hot water and allow cold water to fill the heater tank. Beware of hot water in
the heater tank. Release sufficient amount of hot water.
3. Close the cold water supply stop cock connected to the water heater inlet.
4. Lift up the lever on the pressure relief valve to start the draining of water. Check that the water is flowing at the
drain valve end.
5. After the water in the heater tank is fully discharged, push down the lever on the pressure relief valve.
B. To Remove Heating Element
1. Remove the heater installation cover.
2. Disconnect wire to the thermostat and remove the heating element using the opener tool.
JVA
JH
JVA
JVA JVA
JH JH JH JH
MS IEC 603 3 5- 1:2005
MS IEC 60335-2-21:2005
Cert. No. PJ 0 01402
IP 2 1