Rasonic RWH-CT5 Unvented Instant Storage Hybrid Water Heater Instruction Manual

Installation and Operating Instructions
Unvented Instant Storage (Hybrid) Water Heater
For household use only
RWH-CT5
RWH-CT7

Please read this instruction carefully before using this appliance

• Please read the operation instruction carefully before using and well keep it in a safe place for future reference.
• Some figures in this instruction may not match with the real object, just for reference only.

SAFETY GUIDELINE

• Installation, commissioning and maintenance of this appliance may only be undertaken by an authorized technician who will then be responsible for adhering to the applicable standards and/or installation regulations.
• All spare parts provided by the manufacturer must be duly installed. We are not liable for any damages caused by non-compliance with these instructions.
• Sole Distributor will not provide warranty service on any product installed with unauthorized components or devices.

WARNING : The appliance must be EARTHED.

• The appliance may only be used when correctly installed by authorized technician and in good working order.

• The appliance must be completely filled with water and air bubbles released inside the water tank before being switched on.

• The spare parts provided by the manufacturer must be installed and its wiring and piping must not be modified in any way. The hot water outlet and fittings may be very hot! Keep away from children.
  Subject to local Electrical Laws and Regulations, one of the followings may be provided (Provision and fixation by client):
  i. miniature circuit breaker (MCB)
  ii. earth-leakage circuit breaker (ELCB)

• It is normal if water drips from the Temperature and Pressure Relief Valve (P&T Valve) while the water is being heated.

• The maintenance access panel of the appliance must never be opened before disconnecting the appliance from the main power supply.

• Do not switch on if there is a possibility that the water in the heater is frozen.

• The water inlet of this appliance shall not be connected to water inlet of any other water heating systems.

• Do not allow children to play or touch with the water heater, guardian need to supervise children, to prevent the electrical shock or any injuries.

• This appliance is not intended to be operated by children or disabled persons alone.
  They must be supervised by adults who are responsible for their safety.

• This appliance is not to be used for a potable water supply.

• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or authorized technician in order to avoid a hazard.

• Check water temperature before use, the shower head should always be pointed away from human before cold water is turned on. After use, turn the mixer to cold arrow and shut off.

• Disconnect the power supply if the appliance is idle for a prolonged period.
  The initial operation procedures must be carried out before reuse.

PRODUCT INTRODUCTION AND PACKING LIST

Technical Principal
ISM Hot Water Injection System
Rasonic’s Water Heater apply a 3rd Generation patented Hot Water Injection System, including Combustion Chamber with rapid burner (3kW rating) operated as: Combustion Injection Suction, to transform the phase of water into hot water and inject through passage to the vessel top instantly for storage and direct connected to the hot water pipe works such as central or hot bath system when in use.

Multiple safety protection devices
PID temperature controller
Rasonic’s Water Heater series, it applies the world latest PID concept temperature control to maintain the preset temperature between 2 degree celsius deviation and alert in high temperature and sensor missing. Most of the electronic components and operated software are integrated in the module and enclosed in the fire resistance enclosure, it provide precision and accuracy with easier to repair and maintenance.

| Product| Unit
---|---|---
1| Installation and Operation Instructions| 1
2| Warranty Card| 1
3| Water Saving Shower Head Set
(Including- Shower Head, Flexible Tube and Bracket )
(clients should install the original parts as specify in installation manual)| 1 set
4| Temperature & Pressure Relief Valve ( P&T Valve )| 1
5| Mounting Bracket with Anchor Bolts| 1 set
6| Water Flow Restriction Orifice fixed between supply pipe to Heater inlet pipe x 61/min (Blue)
(clients should install the original parts as specify in installation instruction)| 1
7| Water Flow Restriction Orifice fixed between water
Mixer to Shower Head x 4Umin (Green)
(clients should install the original parts as specify in installation instruction)| 1

PRODUCT INFORMATION

Measurements

PRODUCT STRUCTURE

INSTALLATION INSTRUCTIONS

• The appliance may only be installed in a frost-free environment.
• Power switch with a light indicator is recommended.
• The appliance needs to be permanently connected to the water mains and should not connected by a flexible rubber hose.
• The appliance can be connected to one or more water outlet, e.g. mixing valve, washing machine, shower head, etc.
• Water mains supply pressure should not be less than 0.3MPa.
• P&T Valve must be installed to the appliance, following EN 1490, ANSI Z21.22 or AS1357.1 standard; where temperature should not exceed 99 °C and working pressure at 1.0MPa (10 bar).
• Tighten and connect a drain pipe (not supplied by manufacturer) to the pressure and temperature relief valve
• Water might drip from the P&T Valve as the water is being heated. The drain pipe must never be blocked and left open to atmosphere
• The drain pipe is to be installed in a downward direction from the P&T valve to 150mm above the floor, where the drain pipe outlet is clearly visible
• To drain off the water in water tank:
  i. Switch off the power and water supply
  ii. Unscrew and remove the bottom maintenance access panel
  iii. Unbolt the drain plug (labeled “DRAIN”)

Pre – Installation Notice

Installation and inspection should be processed by a licensed technician using the supplied parts. Sole Distributor is not responsible for any defect or damage caused by incorrect or unauthorized installation.

Positioning
Water heater should position near water tap of use in order to minimize heat loss and defects.
For wall-mount installation, appropriate anchor screws must be used, and wall should be strong enough to withstand the weight of water heater. Installation position should keep a minimal distant between the wall and water heater.
Connecting P &T Valve and Inlet/Outlet Pipes
The Temperature & Pressure Relief Valve ( P&T Valve) has applied in water heater, when the temperature/ pressure in water heater is detected to be more than setting (99°C/1.0MPa (10bar)),water will be released through the P&T Valve to decrease pressure and
temperature.
P &T Valve and Inlet/Outlet Pipes must be installed according to the following instructions:

1. Please refer to the P&T Valve installation label indicated on the water heater, P&T Valve must be installed on the accurate position according to the installation label.

2. When connecting the pipe of P&T Valve , the P&T Valve must be installed downward.
   The outlet of the discharge pipe connecting the P&T Valve must be positioned approximately 100~150mm away from the ground, so that it is easily observable when hot water is being drained to ensure user safety.

3. The diameter of piping should be 1/2” BSP. Connect the inlet pipe (blue) with water supply. Then connect the outlet pipes (red) with supply pipe leading to points of use.

4. Turn on the hot water tap. Turn on water supply switch until the inner tank has been filled up with water. The inner tank has been filled up when water flows from the water tap.

Power Switch
The external switch is used to completely disconnect water heater from power supply. It should disconnect all poles, and a contactor separation of at least 3mm must be present.
Initial Operation
Important:
Rasonic’s water heater hybrid series is designed for operation on 220VAC, and must be installed by authorizes technician with earthed outlet.
Fill the inner tank with water before conducting the following procedures:

• Ensure that the appliance is disconnected and that the fuse is deactivated.
• Turn on the hot water tap of the installed mixer to fill the appliance until bubble-free water emerges from the outlet.
• Check the system for leaks and remedy these if necessary.
• Switch on the appliance.
• The inner tank water temperature will automatic setting and remain in attendance while the water

INSTALLATION DIAGRAM WIRING DIAGRAM

TECHNICAL SPECIFICATION

Static Pressure 0.6MPa (6Bar)
Insulation| PU-fire retardant CFC -free
Rated Voltage| 220V ∼ 50Hz
Rated Loading| 3kW
Rated Current| 13.4 Ampere
Pipe Connection| G 1/2″ Male BSP (British Standard Pipe Thread )
Working Temperature (Inner-Tank)| 75 -80dg.0
Water Protection Class| IPX4
Non-return device| Built-in
Net Weight (Approx.)| 13 kg| 15 kg
Weight – with water (Approx.)| 33 kg| 39 kg

OPERATING INSTRUCTIONS

Draining
To drain off water from the inner tank:
1st – Turn off both power and water supply. Let hot water inside the inner tank cool down if need.
2nd – Unscrew the drain plug to release water.
Source of Water Supply
Never connect Rasonic’ s water heater to other source of water supply, other than the potable water supply as the result will have no warranty to the Company.
Water Shortage
During water shortage, do not drain water from inner tank. The heating element would be damaged if it is not submerged under water. When water supply resumes, turn on hot water tap and let water flows through the shower head before switching on the power.

TROUBLESHOOTING

opened; check fittings and hose connections.
Water outflow too weak| Check if water pressure is normal and ensure no blockage in the valve.
No hot water outflow| Check fuse and electrical connection, call customer service department to check thermal cutout, main controller or heating element if fuse and electrical connection is normal.
Water not hot enough| Check if the water temperature setting is appropriate; or if a large amount of hot water has been consumed, allow time for water to heat up.
Steam emerges| Call customer service department to check thermal cutout, main controller or heating element.
Short-circuit| Switch off the power supply and water tap, call customer service department to check thermal cutout, main controller or heating element.

CLEANING AND MAINTENANCE

• Heater surfaces and fittings may only be wiped with a damp cloth.
  Never use abrasive cleaning agents or solvents.

• The electrical and plumbing components should be inspected by an authorized technician every two years to ensure proper functioning and operational safety at all times.

• The P&T Valve is to be operated regularly to remove lime deposits and to ensure there is no blockage;

• The P&T Valve must be vented slightly at regular intervals (once per month) to ensure proper functioning
  – Pull the lever until the valve opens and water drains from the outlet. Re- close the valve.
  – If water continues to drip from the P&T Valve, call authorized technician to examine the P&T Valve.

• Cleaning the inner tank once a year is recommended:
  – close all valves and disconnect the power supply,
  – dismantle the drainage plug and drain off water to the drainage, slightly open the stop valve to clean the inner tank, tighten the plug after cleansing and repeat the ‘Initial Operation’ procedures.

WARRANTY TERMS

These warranty terms shall be applicable provided that the appliance is purchased, installed and used in accordance to domestic laws and regulations;
From the date of purchase, a 12-month limited liability warranty is provided; and 10-year limited liability warranty for the inner tank*

https://homenkitchen.com.hk/html/l_2256_2_/%E4%BF%9D%E7%94%A8%E7%99%BB%E8%A8%98.html
Scan QR code for Online Warranty Registration

Users must comply with the following instructions within the warranty period:

• Register the warranty information within 10 days of purchase
• Present warranty card and original stamped purchase invoice from distribution agent

*** This warranty is only for maintenance of the inner tank, all inspection, delivery and installation/dismantling fee shall be charged separately
The warranty is invalid if:**

• The appliance is incorrectly installed
• The appliance is modified
• The appliance is not installed and operated in accordance to this manual
• The appliance is used for commercial or industrial purposes
• The incoming water pressure exceeds 0.6MPa without installing a valid pressure control device

Sole Distributor:
ENERGY TRADING COMPANY LIMITED
Address: 13/F.,SUNBEAM COMMERCIAL BUILDING,
469-471 NATHAN ROAD, Kowloon, Hong Kong
TEL: (852) 2310-1210
FAX: (852) 2300-1255
Website: www.energytrading.com.hk
Service Hotline: (852) 2667-6662
WhatsApp: (852) 9867-6452

Special Avowal

1. If information above has been checked; our company reserves the hermeneutic power to any print errors or misunderstanding on the content.
2. In case there is any inconsistency or conflict between the English versions and Chines versions of the terms, the Chinese versions shall prevail.

References

• 安力貿易有限公司 Energy Trading Hong Kong Limited

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