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Hitachi HES-35RD Instruction And Installation Manual page 18

Electric shower heater
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µà Õ  "¬‰ø‡¢â " ∑' Ë ‡ §√◊ Ë Õ ß¥— ß µà Õ ‰ªπ' È
2)
Connect the wiring following picture
‡®"–√Ÿ ∑ ' Ë ª –‡°Á π ¬"ß´÷ Ë ß Õ¬Ÿ à ∑ ' Ë ∞ "π‡§√◊ Ë Õ ß ·≈â « √â Õ ¬ "¬‰ø‡¢â " ®"°¥â " πÀ≈— ß
ªÕ° "¬‰ø ·≈â « µà Õ ‡¢â " °— ∫  «' ∑ ™å ª Ñ Õ ß°— π ‰ø√— Ë «
‰À≈ºà " π‡¢â " ∑"ߢ— È «
L
·≈–µà Õ  "¬¥â " π∑' Ë ‰ ¡à ¡ ' ° √–· ‰ø‰À≈ºà " π‡¢â " ∑"ߢ— È «
‰¢§«ß¢— π „Àâ · πà π
π" "¬¥' π ∑' Ë ª Õ° "¬‡√' ¬ ∫√â Õ ¬·≈â « µà Õ ‡¢â " °— ∫ ®ÿ ¥ µà Õ  "¬¥' π ∑' Ë µ — « ∞"π√Õߌ' µ ‡µÕ√å
µ"¡√Ÿ ª
Punch a hole at the rubber ring on the unit base. Then insert the electric
cable from the back.
Strip the cable and connect to the earth leakage circuit breaker (ELCB).
Connect the line to the terminal L and the NEUTRAL to the N and
secure it tightly with screws.
Connect the stripped ground wire to the ground terminal of the heater
base following the picture.
3)
µâ Õ ßµà Õ  "¬‰ø„Àâ µ √ߢ— È «
Connect the wires to the correct terminals (L and N)
(L, N)
∂â " µà Õ  "¬º' ¥ ¢— È «
∑"ß"π¢Õ߇§√◊ Ë Õ ß‡ ' ¬ À"¬ À√◊ Õ ‡°' ¥ ‰øøÑ " ≈— ¥ «ß®√‰¥â
Wrong connection of the terminals (L, N) can cause abnormality in the circuit.
In this case, it may damage the working of the unit or cause a short circuit.
®–µâ Õ ßµà Õ  "¬¥' π ‡¢â " °— ∫ µ— « ‡§√◊ Ë Õ ß‡ ¡Õ
4)
The shower heater must be always grounded.
¢π"¥¢Õß "¬¥' π ∑' Ë „ ™â „ π°"√µ' ¥ µ— È ß ¥Ÿ √ "¬≈–‡Õ' ¬ ¥„πµ"√"ßÀπâ " 14
The size of the ground wire used in the installation, refer to the details on page 14.
«' ∏ ' µ ' ¥ µ— È ß ·∑à ß ‡À≈Á °  "¬¥' π
‡≈◊ Õ °·À≈à ß ™ÿ à ¡ ™◊ È π ∑' Ë ® –Ωí ß ‡À≈Á ° ∑Õ߇‡¥ß §«"¡¬"«¢Õß·∑à ß ∑Õß·¥ßµâ Õ ß‰¡à π â Õ ¬°«à "
90
´¡.
·∑à ß  "À√— ∫ µà Õ  "¬¥' π ®–µâ Õ ßΩí ß ≈ß„πæ◊ È π ¥' π ‰¡à π â Õ ¬°«à "
®–µâ Õ ß·πà „ ®«à " §«"¡µâ " π∑"π¢Õߥ' π ®–µâ Õ ßπâ Õ ¬°«à "
100
∂â " §«"¡µâ " π∑"π‡°' π
3
·∑à ß
Choose a humid area to put the copper electrode.
The minimum length of the copper electrode is 90 cm.
The ground rod must be put under the ground at the minimum
of 70 cm away from the ground surface.
Make sure that the resistance of the ground must not exceed
100 ohms.
If the resistance exceed 100 ohms, it may be necessary to put
two or three electrodes for grounding.
‚¥¬µà Õ  "¬¥â " π∑' Ë ¡ ' ° √–· ‰ø
(ELCB)
(L
°— ∫
N)
À√◊ Õ ∫«°°— ∫ ≈∫
®–∑"„Àâ ‡ °' ¥ °"√º' ¥ ª°µ' „ π«ß®√ ´÷ Ë ß „π°√≥' π ' È Õ "®∑"„Àâ √ –∫∫°"√
HOW TO INSTALL THE GROUND ROD
70
100
‚ÕÀå ¡ „Àâ Ω í ß ·∑à ß ‡À≈Á ° ≈÷ ° ≈߉ª ‚¥¬Õ"®µâ Õ ß„™â
)
N
·≈â « „™â
15
¡¡
´¡. ®"°º' « æ◊ È π
‚ÕÀå ¡
2
∂÷ ß
Ground surface
ª√–¡"≥
2
‡¡µ√
About 2 M.
Õ¬à " ßπâ Õ ¬
At least 70 cm.
Õÿ ¥ ¥â " π„π¥â « ¬æ≈" µ' ° ‡Àπ' ¬ «
Plaseal
13
¡¡
.
20
¡¡
.
165
¡¡
.
.
‡§√◊ Ë Õ ß¡◊ Õ  "À√— ∫ „™â Ω í ß
Tools for grounding
º' « ¥' π
Õ¬à " ßπâ Õ ¬
·∑à ß  "¬¥' π
70
´¡.
Ground rod
At least
70 cm.
Ωí ß ·∫∫‡Õ' ¬ ß
30 degree in angle
°"√µà Õ
Connections
70
´¡.
1
¡.
1 M.
·∫∫¢π"π
Parallel type

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