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172-65605M-14  (SQ2/SQ4/SQ6)  10 Dec 2019 

2

 

 

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

). 

 
The contents of this manual are subject to change without notice. 
Please note that visuals such as the diagrams and illustrations found within this 
manual may differ slightly from the actual unit. 
 
This manual was written for the purpose of use of the unit in the Japanese market.   
 
Please carefully read all other documentation included for this unit and its 
components. 
Make sure that the person supervising operation of the unit has received a 
thorough briefing on the contents of the 'Report on Commissioning Results' which 
is issued after finishing the commissioning. 
 

 

Important Notice 

Summary of Contents for SteamAqua SQ2

Page 1: ...172 65605M 14 SQ2 SQ4 SQ6 10 December 2019 Steam Fired Instantaneous Water Heater SQ2 SQ4 SQ6 Copyright 2019 by TLV CO LTD All rights reserved...

Page 2: ...tions as standard and are intended for use with electrical systems in the Oceania region Standard models are certified by JET Japan Electrical Safety Environment Technology Laboratories as a water sup...

Page 3: ...tents of this manual are subject to change without notice Please note that visuals such as the diagrams and illustrations found within this manual may differ slightly from the actual unit This manual...

Page 4: ...29 Operation Procedure 30 Prevention of Damage due to Freezing 34 Maintenance and Inspection 35 Storage 38 Storage Instructions 38 Troubleshooting 39 Specifications 41 Disposal of the Unit 41 Product...

Page 5: ...172 65605M 14 SQ2 SQ4 SQ6 10 Dec 2019 4 Operation...

Page 6: ...tions There is a space under the control panel of the unit for storage of this manual Symbols Indicates a DANGER WARNING and CAUTION item Indicates an urgent situation which poses a threat of death or...

Page 7: ...perature Disassembling or removing components when hot or under pressure may lead to discharge of fluids causing burns other injuries or damage Be sure to use only the recommended components when repa...

Page 8: ...upplying water to the heat exchanger Operating the heat exchanger empty of water for a long period of time is dangerous and may result in the pump running dry and becoming damaged Do not rapidly reduc...

Page 9: ...nit The unit is not designed to be climbed on by people Failure to observe this precaution may lead to injury failure or abnormal operation due to deformation of the unit When disassembling or removin...

Page 10: ...ws that when reducing the flow rate of the supply water from 2 m3 h to 1 m3 h relative change of 50 even operating the water supply valve for 30 seconds will result in a temporary water temperature de...

Page 11: ...h handle for easy cover attachment removal 8 9 18 15 23 17 22 2 10 11 6 14 13 12 1 5 Steam Inlet 21 Nameplate High Temperature Caution Label Water Quality Certification Japan Hot Water Outlet 20 15 19...

Page 12: ...es the required amount of dry steam for the water temperature to become the set temperature Two types of control valves are available pneumatic or electric Electric type Air supply is not necessary co...

Page 13: ...changes Display of currently flowing hot water temperature and set temperature Adjust set temperature Sets cancels each alarm Cooling Circulation Unit 22 Circulating Pump Safety function To prevent t...

Page 14: ...4 stainless steel regardless of the frame material 4 Lower Back Cover Control Panel for Connection to Circulating Pump Standard models only 5 Control Panel for Connection to Circulating Pump A control...

Page 15: ...Q4 EO SQ6 EO Enables outdoor installation by improving the dust and water resistance of the cover and internal electrical components of the unit The standard type is for indoor installation only Cover...

Page 16: ...shown in Figure B may differ from the layout in actual units The control panel layout for outdoor specifications standard models only differs from Figure B Control panel for outdoor specifications sta...

Page 17: ...r emergency use The button is enabled by touching it for 0 5 seconds In operation gray Not in operation red 3 SET TEMP Display and SET TEMP Adjustment Button Displays the current set target value for...

Page 18: ...control valve Displayed range 0 to 100 The value is not displayed unless Display Valve Opening is ON on the parameter settings screen as described in a later section 5 Current Time Displays the curren...

Page 19: ...t water amount for the flow sensor When on stand by steam supply will start after a certain period of time Once steam supply is started the water displayed in the image after the heat exchanger change...

Page 20: ...f time during steam heating and is displayed in amber text It is also displayed on the main screen C amber when triggered E Stop Alarm Triggered and displayed with the orange texts when the emergency...

Page 21: ...he degree of opening of the steam control valve Hot water flow rate m3 h Displays the measured value of the hot water flow rate 3 Writing Indicates that trend data is being displayed or written 4 Samp...

Page 22: ...ol panel should be closed When the USB device is recognized by the unit the USB icon will be displayed in the lower right of the touch panel display 2 Data transfer recording When the Start End Record...

Page 23: ...ility that the file may not be opened Once the data in the USB device is retrieved make sure to delete files and folders on the USB device that have been automatically generated If the data is not del...

Page 24: ...longer time period than set in No 2 an high temperature alarm will be triggered When the high temperature alarm value is set to 80 C and alarm delay is set to 10 seconds an alarm will be triggered if...

Page 25: ...firm site safety before changing the PID constant 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...

Page 26: ...ied The water flow rate is displayed as a reference If a flowmeter is installed separately from the unit there may be a difference between the flow sensor present value and the value indicated by the...

Page 27: ...cted Except days selected in weekly mode No 10 Day buttons in green will be removed from the schedule if touched again 6 Stop Time The time to stop the unit s automatic operation Touching the time dis...

Page 28: ...his displays Stop Time and the Stop Time button becomes green The input method is identical to the Start Time setting described above 5 Finally touch the Save button to save the settings To deactivate...

Page 29: ...is in automatic operation a Steam will be shut off The solenoid valve No 11 of the steam supply unit and the steam control valve with condensate separator No 10 will close b The cooling system will s...

Page 30: ...Cooling system ON Circulating pump 22 In operation Solenoid valve 23 Open Cooling system OFF Circulating pump 22 Stopped Solenoid valve 23 Closed Steam supply unit Supplies and controls steam to the...

Page 31: ...s dangerous as steam or condensate may be discharged during operation start up 2 Make sure that the power supply indicator on the control panel is lit and the power is supplied to the control panel Wh...

Page 32: ...to 4 minutes depending on the operating conditions 1 The set flow rate of water is the minimum controllable flow rate for the unit under operating conditions Factory setting see product specification...

Page 33: ...on Even if the target temperature is set within the operational range 30 to 95 C the temperature may be outside the capability range shown below depending on the temperature and flow rate conditions I...

Page 34: ...rculation unit opens and the circulating pump No 22 operates At this time STOPPING is displayed on the touch panel The time required for operation to stop is approx 30 seconds 4 When the process to st...

Page 35: ...ning procedure 1 Make sure that the steam inlet valve No 9 is closed and the unit has completely stopped and cooled down 2 Open the condensate blow valve No 5 of the PowerTrap unit to discharge steam...

Page 36: ...when hot or under pressure may lead to discharge of fluids causing burns other injuries or damage CAUTION When conducting an inspection during operation of the unit it should be carried out visually...

Page 37: ...drain condensate from the compressor periodically 5 Valve opening of the steam control valve with built in separator No 10 If the facility manager has indicated the acceptable pressure range on the p...

Page 38: ...e is displayed Calibration check Request a calibration inspection by TLV or the flow sensor manufacturer 4 Circulating pump No 22 solenoid valve No 23 The circulating pump operates when supply water i...

Page 39: ...humidity is 80 or less 3 If the label or plastic sheet used for sealing or packaging of the unit is damaged replace it immediately or repair it with appropriate tape to maintain the seal 4 When repack...

Page 40: ...control valve Check the pressure of the regulator Supply the required air pressure When the pneumatic control valve is used The sequencer is faulty An error message appears on the touch panel Replace...

Page 41: ...asured temp value output Follow the steps below to resolve problems 1 When using measured temp value output disconnect the wiring and connect it to a 250 resistor 2 Confirm continuity between the temp...

Page 42: ...old Hot Water Inlet Outlet mm 25 25 Flanged 50 50 Flanged 50 50 Flanged Steam Inlet mm 25 Flanged 40 Flanged 50 Flanged Condensate Outlet mm 25 Flanged Installation Location Indoors Outdoors only for...

Page 43: ...lowing cases 1 Malfunctions due to improper installation use handling etc by other than TLV CO LTD authorized service representatives 2 Malfunctions due to dirt scale rust etc 3 Malfunctions due to im...

Page 44: ...ia 3131 Australia Tel Fax 61 0 3 9873 5610 61 0 3 9873 5010 In East Asia 36 Kaki Bukit Place 02 01 02 Singapore 416214 Tel Fax 65 6747 4600 65 6742 0345 Room 5406 No 103 Cao Bao Road Shanghai China 20...

Page 45: ...172 65605M 14 SQ2 SQ4 SQ6 10 Dec 2019 44 Installation Commissioning...

Page 46: ...s Indicates a DANGER WARNING and CAUTION item Indicates an urgent situation which poses a threat of death or serious injury Indicates that there is a potential threat of death or serious injury Indica...

Page 47: ...perature Disassembling or removing components when hot or under pressure may lead to discharge of fluids causing burns other injuries or damage Be sure to use only the recommended components when repa...

Page 48: ...charge during operation injury burns etc Make sure that work such as transportation installation welding or wiring requiring a special license is carried out by qualified personnel Improper work may l...

Page 49: ...wiring which may result in injury burns fire damage etc caused by electric shock from the wiring Precautions for Commissioning When starting up the unit make sure to check the display for the measured...

Page 50: ...ioning 1 After completion of the installation work confirm the installation work based on the Check before the commissioning in the Installation Check List on the following page 2 Make sure to observe...

Page 51: ...tightened Have the necessary valves been opened Have the air supply to the control valve positioner and the steam supply reached the required pressure After commissioning Initial blowdown Has initial...

Page 52: ...t of deformation damage parts breakage missing unit components especially measuring instruments found when unpacking the unit contact TLV immediately 3 When keeping the unit in storage make sure to st...

Page 53: ...or move the package by hoisting it for a long time or distance or at high speed When signs of damage etc are seen in the wooden box while a force is applied to the wooden box stop hoisting immediately...

Page 54: ...space 1 Before installing the unit determine the installation position and then set the anchor bolts M12 bolts with an embedded length of 10 cm or more are recommended Make sure that the unit is secu...

Page 55: ...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...

Page 56: ...amage CAUTION After completing work on the piping system perform a final inspection to make sure all piping connections are tightened all gaskets are installed and that all installations are stable an...

Page 57: ...pressure loss 4 Make sure that the piping is arranged so that air does not accumulate inside the piping Take measures for the location where air may accumulate such as installing an air vent valve et...

Page 58: ...immersed in water 5 There is no valve for drainage in the unit Make sure to install a valve for drainage to ensure ease of maintenance 6 A flow switch for sensing the flow rate is installed at the co...

Page 59: ...f the unit is 0 6 MPaG or more the pressure should be reduced with a pressure reducing valve etc The pressure reducing valve should be installed as far as possible from the unit 5 m or more is recomme...

Page 60: ...outlet piping has a pipe rise make sure to install a valve after the unit This enables easier maintenance work for the internal components in the unit such as the PowerTrap and prevents backflow from...

Page 61: ...he same The size of each branch pipe from the unit connection to the hot water outlet should be same 2 Install a globe valve not included with the unit on each cold water inlet branch pipe so that the...

Page 62: ...tically cut off the circuit on the power supply side 4 When the breaker cannot be grounded in the control panel make sure to perform D class grounding with ground resistance of 500 or less not applica...

Page 63: ...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 com...

Page 64: ...l input should be between 4 and 20 mA When setting the target value via analog signal the set temperature range is from 0 C to 100 C Therefore the output range should be 4 mA 0 C 20 mA 100 C Terminal...

Page 65: ...hot water outlet temperature via analog signal the output range should be 4 mA 0 C 20 mA 100 C Terminal block numbers for Output Temperature Measured Value Standard models 06 05 SE Oceania models 403...

Page 66: ...een the cover and body will limit the waterproof protection for the control panel and consequently water leakage from piping etc may cause an accident such as an electric leakage 3 Connect the power c...

Page 67: ...burns CAUTION The tank must be full of water before operating the heat exchanger In particular if water has been discharged from inside the heat exchanger for freeze prevention etc make sure to restar...

Page 68: ...y not be supplied to the control panel Contact an electrician Together with the electrical system manager investigate the cause by checking the wiring etc 5 Check the operation status on the touch pan...

Page 69: ...alve is in a remote location one person should operate the valve and one person should remain by the unit for observation 5 Starting operation When the water reaches or exceeds the set flow rate1 the...

Page 70: ...et value on the parameter settings screen 2 in the touch panel or b The flow rate is displayed in the touch panel The flow rate of the flow sensor set at the factory will be a stable and controllable...

Page 71: ...perature 3 The condensate outlet receives condensate from all discharge locations inside the unit Therefore when low temperature condensate mixes with flash steam created by high temperature condensat...

Page 72: ...steam using equipment becomes unstable If there are no such conditions likely to occur touch the STOP button to stop operation Continue to Step 3 2 Make sure that the indicated value of the pressure g...

Page 73: ...1 Draining procedure Make sure that the steam inlet valve No 9 is closed and the unit has completely stopped and cooled down 2 Open the condensate blow valve No 5 of the PowerTrap unit to discharge st...

Page 74: ...lowing cases 1 Malfunctions due to improper installation use handling etc by other than TLV CO LTD authorized service representatives 2 Malfunctions due to dirt scale rust etc 3 Malfunctions due to im...

Page 75: ...ia 3131 Australia Tel Fax 61 0 3 9873 5610 61 0 3 9873 5010 In East Asia 36 Kaki Bukit Place 02 01 02 Singapore 416214 Tel Fax 65 6747 4600 65 6742 0345 Room 5406 No 103 Cao Bao Road Shanghai China 20...

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