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Installation

Laars H Series
Tankless Heater Models

LCTEH005, LCTEH006
LCTEH010 & LCTEHV010,
LCTEH015 & LCTEHV015,
LCTEH018 & LCTEHV018,
LCTEH025

Voltage options:
208V Single & Three-Phase
240V Single & Three-Phase
277V Single-Phase
380V Three-Phase
400V Three-Phase
415V Three-Phase
480V Single & Three-Phase

238-54232-00 REV 4/21

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Содержание H Series

Страница 1: ...TEH006 LCTEH010 LCTEHV010 LCTEH015 LCTEHV015 LCTEH018 LCTEHV018 LCTEH025 Voltage options 208V Single Three Phase 240V Single Three Phase 277V Single Phase 380V Three Phase 400V Three Phase 415V Three...

Страница 2: ...allation 6 7 Electric Installation 8 Start Up Check List 9 Start Up 10 Digital Controller Operation 11 NEMA 4 4X Digital Controller Operation 12 Perform Operational Test No 1 13 Perform Operational Te...

Страница 3: ...nnect power supply before performing any work in the enclosure Failure to ground this system may result in death or serious injury Make sure that all water supply lines have been flushed and then comp...

Страница 4: ...0 F 60 C For applications utilizing quick close valves or solenoid valves it is important to install a hammer arrestor or surge tank close to the point of use to absorb pressure spikes Installation Co...

Страница 5: ...and other plumbing for service maintenance Set heater in a vertical upright position with the water outlet located at top Depending on the application the unit may also be installed rotated clockwise...

Страница 6: ...any drop to eliminate trapped air Install one union on the water inlet side of the heater and another union upstream of the 100 Mesh 150 micron y strainer Install one union on the water outlet side of...

Страница 7: ...Installation 7 2 Plumbing Installation cont...

Страница 8: ...Table 310 15 for 75 C insulated copper wire 30 C Ambient Aluminum wire requires larger gauges Not all available optional voltages are listed in the table For standard enclosures remove the four screws...

Страница 9: ...nstalled after pressure and temperature relief valve on outlet if required by local or national plumbing codes If the hot water process is not at the highest point in the plumbing loop then an automat...

Страница 10: ...ge elements and cause heater malfunction Turn on the connected process observe output temperature rise to setpoint On standard controller set point and output temperatures are located side by side On...

Страница 11: ...the controller Keys and Displays Function Setpoint Up and Down Buttons In the Home Page adjusts the set point in the right display In other pages changes the upper display to a highter or lower value...

Страница 12: ...e of the controller Keys and Displays Function Setpoint Up and Down Buttons In the Home Page adjusts the set point in the right display In other pages changes the upper display to a highter or lower v...

Страница 13: ...he inlet water temperature is equal to or greater than the temperature set on the digital controller 9 Perform Operational Test No 2 Each model has precise specifications for temperature rise capabili...

Страница 14: ...tuation FDS Fused Disconnect Internal fused disconnect interlocks with enclosure door when energized prohibiting access to a live cabinet Select the FDS option for an additional level of safety and co...

Страница 15: ...ere hard water sediment is present in the water To clean the Y Strainer 1 Turn the power off at the circuit breaker panel 2 Shut off the installer supplied cold water isolation valve to the heater 3 R...

Страница 16: ...mperature or faulty sensor Turn power off Check for loose or disconnected wires Check the incoming service connection Voltage must match name plate rated voltage Labels are located on the upper left o...

Страница 17: ...urce A load voltage reading is also helpful Turn power OFF before recording any Ohm readings If the above steps do not solve the problem some additional checks may be performed Follow the schematic to...

Страница 18: ...DC Option Pin Out D1 Option Pin Out Pin Name Description Pin Name Description T R 2 RS 485 Transmit Receive Non Inverting Input Output Negative 3 Return Current Path for Current Pin 4 3 Signal Ground...

Страница 19: ...UINT RWES Remote Set Point Control Mode Process Value 1999 000 to 9999 000 F 1128 000 to 5537 000 C 402 402 Float R Process Value Control Mode OFF 62 Auto 10 Manual 54 1880 2360 Auto UINT RWES Contro...

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