TLV SteamAqua SQ10 Instruction Manual

Steam-fired instantaneous water heater

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172-65627M-09 (SQ10) 18 October 2021
Steam-Fired Instantaneous Water Heater
Compliant with the Water Supply Act (in Japan)
SQ10
Copyright © 2021 by TLV CO., LTD.
All rights reserved

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  • Page 1 172-65627M-09 (SQ10) 18 October 2021 Steam-Fired Instantaneous Water Heater Compliant with the Water Supply Act (in Japan) SQ10 Copyright © 2021 by TLV CO., LTD. All rights reserved...
  • Page 2: Introduction

    Please keep it in a safe place for future reference. Important Notice The copyright of this manual belongs to TLV CO., LTD. Unauthorized reproduction of the contents of this manual in part or in whole is strictly prohibited. This manual should be kept for future reference. If it becomes defaced or is misplaced, contact your local TLV representative, or download from the TLV website (https://www.tlv.com).
  • Page 3: Table Of Contents

    Storage Instructions ................34 Troubleshooting .................. 35 Service or Technical Assistance ............37 Specifications ..................38 Disposal of the Unit ................38 TLV EXPRESS LIMITED WARRANTY ..........39 Service ....................41 Installation/Commissioning ........42 Introduction ..................43 Safety Considerations ................ 43 Precautions for Opening and Moving the Package ......
  • Page 4: Operation

    Operation 172-65627M-09 (SQ10) 18 Oct 2021...
  • Page 5: Safety Considerations

    Furthermore, TLV CO., LTD. does not bear responsibility or guarantee the unit for damages or accidents that arise from not following these considerations. Checking the "Caution/Warning Stickers"...
  • Page 6 Precautions for the Entire Unit Install properly and DO NOT use this unit outside the CAUTION recommended operating pressure, temperature and other specification ranges. Improper use may result in such hazards as damage to the unit or malfunctions that may lead to serious accidents. Local regulations may restrict the use of the unit to below the conditions quoted.
  • Page 7 Precautions for Operation When initially starting up the unit, make sure to check the CAUTION display the measured temperature to prevent burns and do not touch the water until the temperature becomes stable. Be careful especially when using the water is used at high temperature.
  • Page 8 When finishing operation, the operation should be stopped CAUTION in accordance with the proper steps. Incorrect operation of the unit during use for handwashing or showering, or cleaning, etc., may result in burns due to malfunction, which causes the temperature of the water to rise above the set temperature.
  • Page 9: Temperature Stability

    Temperature Stability The unit is capable of supplying water with a temperature deviation of 1 C of the set temperature when there is little fluctuation in the amount of water and the unit is in stable operation. However, rapid operation of the valve for water supply, or rapid temperature changes of the supply water, may temporarily result in a temperature deviation greater than 1 C of the set temperature.
  • Page 10: Configuration (Component Name And Function)

    Configuration (Component Name and Function) Hot Water High Temperature Water Quality Outlet Caution Label Certification (Japan) Steam Inlet Condensate Outlet Nameplate Cold Water Inlet Left Right Back Hot Water Outlet Steam Inlet Cold Water Inlet Condensate Outlet Condensate Blowdown 172-65627M-09 (SQ10) 18 Oct 2021...
  • Page 11 Component Configuration Name Component Description Removes steam condensate consumed by the heat exchanger PowerTrap to produce hot water. ・The PowerTrap has both a steam trap function, and a pump function Silencing Bush Condensate for discharging condensate even Discharge when there is very little pressure Unit from the heat exchanger side.
  • Page 12: Optional Equipment Configuration

    Optional Equipment Configuration External view of the standard product Optional Equipment Option Component Description 3-sided Cover The panel and frame (including Stainless Steel (Front, Left, Right) base) material of the unit can be 3-sided Cover/ Stainless Steel changed from iron to stainless Base &...
  • Page 13: Control Panel Configuration

    Circuit breaker for the unit. ・The circuit breaker is OFF when shipped. Make sure the breaker Circuit Breaker (Non-fuse Breaker) is turned ON by a qualified electrician or TLV personnel. Power Supply Lights up when power is supplied to the control panel at Indicator 100 V AC.
  • Page 14: Touch Panel Display

    Touch Panel Display Items used during normal operation The following items can be operated with the touch panel display to; 1. Starting operation of the unit, 2. Stopping operation of the unit, or 3. Adjusting the set (target) temperature. The three buttons shown in the figure to the right are used during normal operation.
  • Page 15 Settings or set. (For more details, refer to the "Alarm log screen" section.) Displays contact information for TLV. ・Contact information for TLV or TLV service and technical Contact Information assistance personnel and the serial no. for the unit can be confirmed.
  • Page 16 Flow display on the main screen Screen Display Status Description The water flow rate is The amount of water flowing is less than the set water less than the set water amount for amount for the flow the flow sensor (default: the sensor amount of water that can be controlled under stable conditions)
  • Page 17 Alarm Log Screen Function Description Displays the date and time (yy/mm/dd hh:mm) of an alarm. Alarm Time ・The displayed time is derived from the clock on the display. Displays alarm details. ・Low Temp Alarm:Triggered when the water temperature is below the alarm trigger temperature (defined as: set temperature –...
  • Page 18 Data Log Function Screen Recorded hot water outlet temperature (measured value, target value) and valve opening data can be output to an external storage device via the USB port. Data log function screen (1) Data log function screen (2) Function Description Start/End Starts/ends trend data recording/display...
  • Page 19 Trend data output (data log function) (1) Preparing for data transfer (recording) For trend data output, prepare a USB device. (USB device not included with the unit.) a) Open the front cover of the control panel. USB port (Control panel for outdoor specifications: the inner cover of the control panel should be opened.) For safe use, make sure the breaker is...
  • Page 20 (3) Example of recorded data The data written in the CSV file is recorded as in the figure below. The upper limit of the collected data is dependent on the number of lines able to be displayed by the browsing/editing software. If the number of data exceeds the maximum number of lines of the browsing/editing software, there is a possibility that the file may not be opened.
  • Page 21 Parameter Settings Screen Parameter Settings Screen (1) Function Description Sets the temperature at which the high temperature alarm is triggered. ・Defined as: Input value + set temperature = high temperature alarm value (When the temperature is set to 70 C and upper limit alarm set temperature is set to 10 C, the high temperature High Temp (C) alarm value becomes 80 C.)
  • Page 22 Unnecessarily changing the PID value may result in being unable to obtain the set water temperature or in some cases overheating. For adjusting the PID constant (value), contact TLV. Displays the valve opening information on the main screen. ・Display state can be changed by touching the square button.
  • Page 23 Schedule Settings Screen (Weekly Timer) Function Description Displays the schedule number. ・3 (different) schedules can be set. Schedule No. (Schedule1/Schedule2/Schedule3) Activates/deactivates the schedule function. ON/OFF Button ・Touching the ON button opens the settings screen. (for the schedule ・Schedule function turns OFF when it is in the OFF mode. function) (Scheduled data will be saved.) Inputs numerical values when setting date/time.
  • Page 24 No. Function Description  (Displays the Displays the next schedule setting screen (123). ・Touching this button displays the next schedule setting screen. next schedule ・This button does not exist on the Schedule 3 setting screen. setting screen) Schedule setting This icon is displayed when the schedule function is ON. ・This icon is displayed when Schedule 1, 2, or 3 are active.
  • Page 25: Safety Function (Abnormal Temperature Rise Preventing Function)

    Safety Function (Abnormal Temperature Rise Preventing Function) The safety function (abnormal temperature rise preventing function) activates when the water temperature exceeds, or is expected to exceed, the allowable upper limit temperature, in order to prevent an excessive temperature rise. This function activates under either of the following conditions 1.
  • Page 26: Operation Flow

    Operation Flow NOTE: For component names and numbers, refer to the unit/control panel configuration sections. NOTE: START Descriptions For the ‘Control Panel for Connection button Flow sensor (7) to Circulating Pump’ option, Operates according to the circulating pump operation is started. set controllable flow rate.
  • Page 27: Operation Procedure

    Operation Procedure Start-up When operating the unit after a prolonged period of no operation, initial blowdown should be conducted on the steam and water piping preceding the unit. Initial blowdown refers to the removal of residual condensate from steam piping and rusty water from water piping.
  • Page 28 (Factory setting: 5 seconds). If the flow does not stabilize within 5 seconds and the unit repeatedly starts and stops operation, the alarm delay time must be changed. (Contact TLV for details of how to change the alarm delay time).
  • Page 29 (6) Adjusting the set temperature Do not change the temperature setting without contacting the CAUTION user when washing hands, using a shower or cleaning. Failure to do so may result in burns to the user. Touch the "Set Temperature Adjustment" button on the touch panel, and using the keyboard panel, input the desired temperature.
  • Page 30 Shutdown When finishing operation, the operation should be stopped in accordance CAUTION with the proper steps. Incorrect operation of the unit during use for hand washing, showering, or cleaning, etc., may result in burns due to malfunction, which causes the temperature of the water to rise above the set temperature.
  • Page 31: Prevention Of Damage Due To Freezing

    Prevention of Damage due to Freezing When draining water from the unit, make sure to wait until the unit has CAUTION cooled down. If carrying out work after hot water use, there is a risk of burns, as the components and the water inside the unit are hot. Make sure measures are taken to prevent freezing of the unit’s steam piping system in cold climates.
  • Page 32: Maintenance And Inspection

    Maintenance and Inspection When disassembling or removing the unit and its components, wait until CAUTION the internal pressure equals atmospheric pressure and the surface of the components have cooled to room temperature. Disassembling or removing components when hot or under pressure may lead to discharge of fluids, causing burns, other injuries or damage.
  • Page 33 As a general rule, periodic inspection should be carried out once every two years. (1) For maintenance of the following components, refer to individual instruction manuals. Instruction manuals can be requested from TLV or accessed from the TLV website. a) PowerTrap (GT14L)
  • Page 34 "flow sensor present value" is displayed.  Calibration check Request a calibration inspection by TLV or the flow sensor manufacturer. (4) Circulating pump (Option: No. 6)/solenoid valve (Option: No.
  • Page 35: Storage

    Storage The openings of the unit are sealed with a label, plastic sheet, etc., and delivered after taking measures to prevent rust and contamination. Observe the storage instructions until the unit is installed on the piping. If the following storage instructions cannot be observed, rust or foreign matter may void the warranty.
  • Page 36: Troubleshooting

    If the unit fails to operate properly, use the following table to locate the cause and remedy. If it is not possible to resolve the problem even after carrying out the remedy below, contact TLV. Problem Cause Diagnosis...
  • Page 37 Problem Cause Diagnosis Remedy Water Large Check the operating Reduce sudden changes temperature fluctuations in conditions. in the amount of water is unstable amount of water used. (Refer to the used. "Temperature Stability" area of this section.) Inlet steam Check the steam Make sure a steam pressure of the pressure.
  • Page 38: Service Or Technical Assistance

    Service or Technical Assistance For Service or Technical Assistance: Contact your TLV representative or your TLV office. In Europe: Tel: [49]-(0)7263-9150-0 Daimler-Benz-Straße 16-18, 74915 Waibstadt, Germany Fax: [49]-(0)7263-9150-50 Tel: [44]-(0)1242-227223 Star Lodge, Montpellier Drive, Cheltenham, Gloucestershire, GL50 1TY, U.K. Fax:...
  • Page 39: Specifications

    Specifications Install properly and DO NOT use the unit outside the recommended CAUTION operating pressure, temperature and other specification ranges. Improper use may result in such hazards as damage to the unit or malfunctions that may lead to serious accidents. Local regulations may restrict the use of the unit to below the conditions quoted.
  • Page 40: Tlv Express Limited Warranty

    Subject to the limitations set forth below, TLV CO., LTD., a Japanese corporation (“TLV”), warrants that products which are sold by it, TLV International Inc. (“TII”) or one of its group companies excluding TLV Corporation (a corporation of the United States of America), (hereinafter the “Products”) are designed and manufactured by TLV,...
  • Page 41 WARRANTY NOT NEGATED HEREBY, AND ANY IMPLIED WARRANTY NOT NEGATED HEREBY, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, DO NOT COVER, AND NEITHER TLV, TII NOR ITS TLV GROUP COMPANIES WILL IN ANY EVENT BE LIABLE FOR, INCIDENTAL OR...
  • Page 42: Service

    Service For Service or Technical Assistance: Contact your TLV representative or your TLV office. In Europe: Tel: [49]-(0)7263-9150-0 Daimler-Benz-Straße 16-18, 74915 Waibstadt, Germany Fax: [49]-(0)7263-9150-50 Units 7 & 8, Furlong Business Park, Bishops Cleeve, Gloucestershire, GL52 Tel: [44]-(0)1242-227223 8TW, U.K.
  • Page 43: Installation/Commissioning

    Installation/Commissioning 172-65627M-09 (SQ10) 18 Oct 2021...
  • Page 44: Introduction

    Furthermore, TLV CO., LTD. does not bear responsibility or guarantee the unit for damages or accidents that arise from not following these considerations. Checking the "Caution/Warning Stickers"...
  • Page 45 Precautions for the Entire Unit Install properly and DO NOT use the unit outside the CAUTION recommended operating pressure, temperature and other specification ranges. Improper use may result in such hazards as damage to the unit or malfunctions that may lead to serious accidents. Local regulations may restrict the use of the unit to below the conditions quoted.
  • Page 46 Precautions for Piping Installation For applications such as handwashing in which hot water WARNING directly touches hands, when using the one-pass method, make sure to install a thermostatic mixing value on the outlet. Failure to observe this precaution may result in burns, as water at a temperature higher than than the set temperature may flow due to load fluctuations.
  • Page 47 Precautions for Electrical Wiring Power is supplied at 100 V AC 50/60 Hz or 200 V AC 50/60 CAUTION Use of a power supply outside the above specification range may cause fires or electric shock. Make sure the power supply is OFF before carrying out work on the wiring or inspections involving disassembly.
  • Page 48 2. Installation of the water supply system TLV does not provide advice or instructions regarding piping for the entire water supply system or electrical work. For the water supply system and electrical components to be connected to the unit, follow the instructions provided by the organization that designed and installed the system.
  • Page 49 Installation Check List  Situation Item Description Have all packed items been included? Has the unit been installed securely and stably? The unit and its Has sufficient space required for inspection and surroundings repair been provided? Has all the necessary piping been connected? Has the unit been connected to the power supply voltage (100 or 200 V AC) according to Before...
  • Page 50: Precautions For Opening And Moving The Package

    The instruction manuals etc. are enclosed in a plastic bag attached to either the front of the control panel, or to the cushioning material. Instruction manuals can be requested from TLV or accessed from the TLV website. 2. In the event of deformation, damage, parts breakage, missing unit components (especially measuring instruments) found when unpacking the unit, contact TLV immediately.
  • Page 51 NOTE: When it is difficult to move the package into the facility by forklift: When it is difficult to move the package into the facility by forklift, the package should be moved using an unloading belt, while the unit is still packed in a wooden box.
  • Page 52: Precautions Before Unit And Piping Installation

    2. When installing the unit in a high place, make sure to install the unit at a location where maintenance work etc. can be carried out, and where handrails etc. are installed to prevent falling. If work cannot be performed, TLV may refuse after-sales service.
  • Page 53 Keep personnel and components away from the opening when flushing the piping. Sealing material or dust entering the piping may cause problems such as deterioration of heat transfer efficiency, improper operation of the unit, valve leakage, etc. 172-65627M-09 (SQ10) 18 Oct 2021...
  • Page 54: Piping Work

    Piping Work For applications such as handwashing in which hot water directly touches WARNING hands, when using the one-pass method, make sure to install a thermostatic mixing value on the outlet. Failure to observe this precaution may result in burns, as water at a temperature higher than than the set temperature may flow due to load fluctuations.
  • Page 55 For piping: (1) The pipe diameter should not be smaller than the diameter of the unit connections. (2) For steam piping, make sure the piping is connected with a downward slope on the downstream side. (3) The piping should be kept simple, with as few joints as possible in order to avoid pressure loss.
  • Page 56 A. Cold water inlet, hot water outlet The cold water inlet and hot water outlet of the unit are connected to the inlet/ outlet of the heat exchanger. Make sure to follow the installation procedures regardless of the instructions provided. These are the minimum precautions to prevent this unit from being damaged or malfunctioning.
  • Page 57 A-(2): For recirculating system hot water piping In recirculating systems, the cold water supplied to the unit is heated, then some is supplied to the point of use, and some is returned to the unit via the recirculation piping. a) Install air vent(s), safety valves for pressure relief and expansion tanks (if required) as appropriate on the hot water piping b) Install the mixing section (for hot water returned from the recirculation piping and cold supply water) at least 1 m away from the cold water inlet...
  • Page 58 C. Condensate outlet piping Make sure to pipe the discharged condensate to a safe area such as a pit. (1) The temperature of steam condensate discharged from the unit exceeds 100 C. Do not use PVC or lead piping intended for water supply.
  • Page 59: Installing Several Steamaqua Units In Parallel

    Installing Several SteamAqua Units in Parallel When installing several units in parallel, make sure that the water flow to the units is evenly distributed. If the water flow is uneven, the unit with the higher flow rate becomes overloaded, and the required temperature rise may be Cold Water Inlet obtainable.
  • Page 60: Electrical Wiring

    Electrical Wiring Power should be supplied at the voltage and frequency applicable for CAUTION each SQ version. (Standard models: 100 V AC at 50 Hz or 60 Hz, Oceania models: 240 V AC at 50 Hz). Use of a power supply outside the above specification range may cause fires or electric shock.
  • Page 61 (3) When wiring the power cable or other cabling from the unit elsewhere, make sure that the unit cover can still be removed. (Do not fix electrical conduits, etc. to the cover.) If the unit cover cannot be removed, unit commissioning or maintenance may be refused.
  • Page 62 3. External input/output The unit is capable of receiving the following inputs: (1) Operation input (voltage free contact, pulse) Operation of the unit can be started/stopped.For signals, use voltage free contacts that can be operated for 1 to 3 seconds. In addition, make sure that the "Operation Start"...
  • Page 63 mA to 20 mA external signal. When obtaining the hot water outlet temperature via analog signal, the output range should be: 4 mA → 0 C, 20 mA → 100 C. (6) Terminal block numbers: Output Temperature Measured Value: 06, 05, SE (7) Emergency stop input (voltage free contact): When there is a requirement for components other than the unit, such as...
  • Page 64 (3) Connect the power cable to the E, L2 and N3 terminal blocks. Terminal block numbers: Pump power source: L2, N3 (for 100 V AC) U, V, W (for 200 V AC) Control Panel Ground: E (100 V) (Pump power is limited to single phase 100 V AC, 0.4 kW or less.) (The ground is shared with the ground of 100 V AC power supply for the main...
  • Page 65: Commissioning Procedure

    Commissioning Procedure When starting up the unit, make sure to check the display for the measured CAUTION temperature and do not touch the water until the temperature becomes stable at a temperature higher than the set temperature may flow. Failure to observe these precautions is dangerous and may result in burns. The tank must be full of water before operating the heat exchanger.
  • Page 66 If blowdown has not been adequately carried out, TLV cannot guarantee against damage or performance loss of valves and the unit as a result of scale. (4) Make sure that the power supply indicator on the control panel is lit and the power is supplied to the control panel.
  • Page 67 (Factory setting: 5 seconds). If the water flow rate does not stabilize within 5 seconds and the unit repeatedly starts and stops operation, the alarm delay time must be changed. Consult TLV on how to change settings.
  • Page 68 The flow rate of the flow sensor set at the factory will be a stable and controllable water amount value as stated in the 'product specification document'. However, when the commissioning is conducted by TLV, the flow rate may be adjusted according to the operation conditions of the user.
  • Page 69 4. Maintaining operation Checking for leakage: When the unit starts to supply the required water temperature, maintain this state for 5 minutes or more. During this time, make sure that no leakage, abnormal sounds or vibrations are observed in each area of the steam piping or water systems.
  • Page 70 5. Shutdown (1) Close the steam inlet valve (No. 9) slowly. When the STOP button is touched on the touch panel without closing the steam inlet valve, the following conditions may be caused by the steam flow suddenly stopping: ・The steam source pressure temporarily rises and the safety valve (relief valve) (not included with the unit) installed on the pipe before the steam inlet valve opens.
  • Page 71 6. Prevention of damage due to freezing When discharging water from the unit, make sure to wait until the CAUTION unit has cooled down. If carrying out work after hot water use, there is a risk of burns, as the unit and the water inside the unit are hot.
  • Page 72: Tlv Express Limited Warranty

    Subject to the limitations set forth below, TLV CO., LTD., a Japanese corporation (“TLV”), warrants that products which are sold by it, TLV International Inc. (“TII”) or one of its group companies excluding TLV Corporation (a corporation of the United States of America), (hereinafter the “Products”) are designed and manufactured by...
  • Page 73 WARRANTY NOT NEGATED HEREBY, AND ANY IMPLIED WARRANTY NOT NEGATED HEREBY, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, DO NOT COVER, AND NEITHER TLV, TII NOR ITS TLV GROUP COMPANIES WILL IN ANY EVENT BE LIABLE FOR, INCIDENTAL OR...
  • Page 74: Service

    Service For Service or Technical Assistance: Contact your TLV representative or your regional TLV office. In Europe: Tel: [49]-(0)7263-9150-0 Daimler-Benz-Straße 16-18, 74915 Waibstadt, Germany Fax: [49]-(0)7263-9150-50 Tel: [44]-(0)1242-227223 Units 7 & 8, Furlong Business Park, Bishops Cleeve, Gloucestershire GL52 8TW, U.K.

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