EemaX LavAdvantage User manual

INSTALLATION GUIDE AND OWNER’S MANUAL
LavAdvantage
ELECTRIC INSTANTANEOUS WATER HEATERS

2
BEFORE ATTEMPTING ANY INSTALLATION, MODIFICATION OR SERVICE OF THIS
HEATER, MAKE SURE THE ELECTRICAL POWER IS DISCONNECTED.
Read and understand these instructions thoroughly before attempting the installation or service of this water
heater. Failure to follow these instructions can result in serious injury, death and/or property damage. The
warranty of this water heater will depend upon the proper installation according to these instructions. Some
heaters come supplied with separate faucet aerators. If supplied, the aerator must be installed in the faucet for
optimum performance. This heater must be used to heat water only and be in a location where it is not subject
to freezing temperatures. The manufacturer is not liable for any damages resulting from improper installation or
misuse.
This installation must conform to the latest requirements of the National Electrical Code and all applicable state
and local codes. This information is available through your local authorities. You must understand these
requirements before beginning this installation.
This unit is not required by UL 499 to have a Temperature and Pressure relief valve (T&P). You should check with
local codes to find out if one is required. If it is, it must be installed in the outlet hot water pipe between the
heater and the isolation valve.
IMPORTANT SAFETY INSTRUCTIONS
When using this electrical equipment, basic safety precautions should always be followed, including the
following:
READ AND FOLLOW ALL INSTRUCTIONS
A green terminal (or a wire connector marked “G”, “GR, “Ground”, or “GROUNDING”) is provided within the
control box. To reduce the risk of electric shock, connect this terminal or connector to the grounding terminal of
the electric service or supply panel with a continuous copper wire in accordance with your local electrical code.
Contents
GENERAL.....................................................................................................................................................................3
1) MOUNTING THE UNIT TO THE WALL......................................................................................................................4
2) PLUMBING HOOK-UP .............................................................................................................................................5
3) ELECTRICAL HOOK-UP ............................................................................................................................................7
4) COMMISSIONING THE HEATER ..............................................................................................................................8
Congratulations!.........................................................................................................................................................9
5) UNIT OPERATION................................................................................................................................................. 10
PERIODIC MAINTENANCE........................................................................................................................................ 14
PART NUMBERS FOR FITTINGS, AERATORS AND AERATOR ADAPTORS ................................................................. 14
REPAIR PARTS FOR “THERMOSTATIC” UNITS.......................................................................................................... 15

3
(CANADIAN INSTALLATIONS ONLY) CONNECT ONLY TO A CIRCUIT PROTECTED BY A
CLASS A GROUND FAULT CIRCUIT INTERRUPTER. ATTENTION: BRANCHER UNIQUEMENT
À UN CIRCUIT PROTÉGÉ PAR UN DISJONCTEUR DE FUITE DE TERRE DE CLASSE A.
(CANADIAN INSTALLATIONS ONLY) DO NOT INSTALL IN A BATH ENCLOSURE OR
SHOWER STALL OR CONNECT TO A SALT-REGENERATED WATER SOFTENER OR A
WATER SUPPLY OF SALT WATER. ATTENTION: NE PAS INSTALLER DANS UNE BAIGNOIRE OU UNE CABINE DE
DOUCHE ET NE PAS BRANCHER À UN ADOUCISSEUR D’EAU RÉGÉNÉRÉ AVEC DU SEL OU À UN
APPROVISIONNEMENT EN EAU SALÉE.
(CANADIAN INSTALLATIONS ONLY) USE COPPER CONDUCTORS ONLY. USE BONDING
CONDUCTOR IN ACCORDANCE WITH THE CANADIAN ELECTRICAL CODE PART I. UTILISEZ
DEZ CONDUCTEURS EN CUIVE UNIQUEMENT. UTILISEZ DES CONDUCTEURS DE MIZE À LA MASSE
CONFORMEMENT AU CODE CANADIEN DE L’ÉLECTRICITÉ, PARTIE I.
SAVE THESE INSTRUCTIONS
GENERAL
The Eemax “LavAdvantage” heaters will provide optimum performance and energy savings when located under
the sink and as close as possible to the point of hot water use. For best performance, the heater should be
BELOW the point of use. Failure to do so may void the warranty. Contact your Eemax representative for further
information.
“LavAdvantage” heaters accept cold or preheated water and heat it to temperatures suitable for normal
domestic usage up to maximum of 140°F. With the “S” option, they can be used as a temperature booster for
sanitation applications up to maximum 180°F. Units built with the “ML” option are factory-set to a maximum
temperature of 110°F (range 80°F - 110°F) and are recommended for hand washing applications. The “ML”
option is an excellent choice for supplying hot water to sensor-type or metering faucets.

4
1) MOUNTING THE UNIT TO THE WALL
THIS HEATER MUST BE INSTALLED IN A LOCATION WHERE IT IS NOT SUBJECT TO
FREEZING TEMPERATURES.
1. The heater should be mounted “under the sink” as close to the point of use as possible. Ideal position is
fittings pointed down, but the heater can be mounted in any orientation
2. Make sure to leave a minimum of 8 inches service
clearance at the end OPPOSITE the fittings.
3. Remove the cover and fasten to the wall using the
four mounting holes at each corner of the back plate.
Replace the cover.

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2) PLUMBING HOOK-UP
The heater is supplied with brass 3/8” compression fittings that are compatible with either stainless steel flex
hose, copper or plastic pipe. Make sure these fittings are used for this installation. Contact your Eemax
representative for further information.
Eemax strongly recommends that the heater be supplied directly from the main cold water line when possible.
This helps to avoid a potential water flow interruption to the heater which could lead to a failure of the heating
element.
Minimum working pressure of 30psi.
Maximum Operating System Pressure of –150 psi.
Optimum Operating Pressure 35 - 80 PSI (Anything over 80 PSI must have pressure reducing regulator).
For optimum performance, we recommend the use of isolation valves (full flow ball type) on the inlet and outlet
pipes.
BEFORE ATTEMPTING ANY INSTALLATION, MODIFICATION OR SERVICE OF THIS HEATER,
MAKE SURE THE ELECTRICAL POWER IS DISCONNECTED.
NEVER SUBSTITUTE THREADED PIPE FITTINGS USING PIPE DOPE OR TEFLON TAPE AND
NEVER SOLDER ANY PIPE CONNECTIONS WHILE ATTACHED TO THIS HEATER BECAUSE
DAMAGE TO THE HEATER WILL RESULT. DOING THIS WILL VOID THE WARRANTY!
1. The heater’s water INLET and OUTLET are labeled. Install
full flow ball valves to the inlet and outlet pipes and run
water through the inlet pipe into a bucket to purge it of any
debris. Close the inlet ball valve.
2. Make sure the inlet filter screen is present in the inlet
fitting and the inlet and outlet pipes are correctly aligned
with the heater connections to minimize stress on the
heater.

6
3. Remove the cover. Connect the pre-assembled inlet and
outlet pipes to the heater and fully open the inlet and
outlet ball valves. Check for water leaks. If a leak is at a
compression fitting, slowly tighten the compression nut
until it stops. Replace the cover.
4. Open the hot water faucet and run water for minimum
60 seconds and until the flow is continuous and free of air
pockets. Close the faucet and install the aerator (if
supplied).
Failure to install aerator (if supplied) will result in lower-
than-expected heater performance**.
Model
# of
Aerators
Model
# of
Aerators
SPEX3512T ML
2
SPEX3208T ML
2
SPEX35T ML
2
SPEX4208T ML
2
SPEX48T ML
2
SPEX3277T ML
2
SPEX55T ML
2
SPEX4277T ML
2
SPEX65T ML
2
SPEX60T ML
2
SPEX75T ML
2
SPEX80T ML
2
SPEX95T ML
3
SPEX90T ML
3
SPEX012240T ML
3
SPEX100T ML
3
**ML thermostatic models are designed to deliver a
minimum flow of 0.35 GPM to each lavatory. Please install
the supplied aerators to ensure maximum heating
performance.

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3) ELECTRICAL HOOK-UP
This heater must have its own independent circuit using insulated, UL listed, 2 wire cable (2 wire plus ground) of
the appropriate size suitable for up to 75°C and protected by the correctly rated circuit breaker. Refer to the
chart below:
ELECTRICAL SPECIFICATIONS
LavAdvantage model number
Voltage
(VAC)
Max power
(kW)
Max current
(A)
Minimum wire
size (AWG)
SPEX1812T
120
1.8
15
14
SPEX2412T
120
2.4
20
14
SPEX3012T
120
3
25
12
SPEX3512T
120
3.5
29
12
SPEX35T
240
3.5
15
14
SPEX48T
240
4.8
20
14
SPEX55T
240
5.5
23
12
SPEX65T
240
6.5
27
12
SPEX75T
240
7.5
32
10
SPEX95T
240
9.5
40
8
SPEX012240T
240
11.5
48
6
SPEX3208T
208
3
15
14
SPEX4208T
208
4.1
20
14
SPEX8208T
208
8.3
40
8
SPEX3277T
277
3
11
14
SPEX4277T
277
4.1
14.8
14
SPEX60T
277
6
22
14
SPEX80T
277
8
29
12
SPEX90T
277
9
33
10
SPEX100T
277
10
36
10
BEFORE BEGINNING ANY WORK ON THIS INSTALLATION, BE SURE THAT THE
ELECTRICAL BREAKER IS “OFF” AND THAT ALL MOUNTING AND PLUMBING WORK HAS
BEEN COMPLETED PER THESE INSTRUCTIONS.
1. Power cable entry to the heater should be made
through one of the “knock-out” holes located on the
back plate or top/bottom ends of the unit. Use the
appropriate strain relief fitting.

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4) COMMISSIONING THE HEATER
BEFORE SWITCHING THE ELECTRICAL BREAKER “ON”, MAKE SURE THE INLET AND
OUTLET BALL VALVES ARE FULLY OPEN AND WATER IS FLOWING THROUGH THE HOT
WATER FAUCET FOR A MINUTE OR TWO UNTIL THE FLOW IS CONTINUOUS AND FREE FROM AIR POCKETS. DO
NOT SWITCH THE BREAKER “ON” IF THERE IS A POSSIBILITY THE WATER IN THE HEATER IS FROZEN.
1. Make sure water is flowing through the faucet.
2. Switch “ON” the electric power supply at the
breaker.
2. The power leads are to be secured to the L1 and
L2 or L and N connectors on the terminal block or
relay. The ground lead is to be secured to the GND
connector on the block or the green ground wire
with the provided wire nut.
FAILURE TO GROUND THE SYSTEM MAY RESULT IN SERIOUS INJURY, DEATH AND/OR
PROPERTY DAMAGE.
3. Leave the breaker in the “OFF” position. Proceed
to the next section:
COMMISSIONING THE HEATER

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3. Keep water flowing through the faucet for the
next step.
4. For 60 seconds after “power ON”, display will
countdown from 60 seconds to 0. When the display
timer reaches 45, the unit starts heating.
5. After the 60 seconds in step 4, the display will
show temperature setpoint.
The heater is considered commissioned at this point.
Faucet can be turned off and used as needed.
Note: the temperature display will turn off after 5
minutes of inactivity. Display turns on when water
flows through heater or if either pushbutton is
pressed.
Congratulations!
Your Eemax tankless electric water heater is fully installed and ready for use!
MAXIMUM TEMPERATURE RISE AT SPECIFIED FLOW RATE, °F
GPM
Model
0.35
0.5
1
1.5
2
2.5
3
SPEX1812T
35
25
12
8
6
5
4
SPEX2412T
47
33
16
11
8
7
5
SPEX3012T
59
41
20
14
10
8
7
SPEX3512T
68
48
24
16
12
10
8
SPEX35T
68
48
24
16
12
10
8
SPEX48T
*
66
33
22
16
13
11
SPEX55T
*
75
38
25
19
15
13
SPEX65T
*
89
44
30
22
18
15
SPEX75T
*
102
51
34
26
20
17
SPEX95T
*
130
65
43
32
26
22
SPEX012240T
*
*
79
52
39
31
26
SPEX3208T
59
41
20
14
10
8
7
SPEX4208T
*
56
28
19
14
11
9
SPEX8208T
*
113
57
38
28
23
19
SPEX3277T
59
41
20
14
10
8
7
SPEX4277T
*
56
28
19
14
11
9
SPEX60T
*
82
41
27
20
16
14
SPEX80T
*
*
55
36
27
22
18
SPEX90T
*
*
61
41
31
25
20
SPEX100T
*
*
68
46
34
27
23

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5) UNIT OPERATION
Using the Eemax LavAdvantage Control Functions
Using the Eemax LavAdvantage is EASY. There are only 2 buttons: “–“and “+”. Moving through the functions
requires a minimum of effort –just follow along!
During operation the unit will show the current set point temperature and will display this temperature for 5
minutes after the unit is active.
Factory temperature setpoints:
-Standard heaters, S models: 120°F
-Units 3.5 kW and below: 105°F
-ML models: 110°F
-EE models: 90°F
SETTING TEMPERATURE
To INCREASE temperature, tap the “+” button repeatedly, or hold the “+” down to INCREASE the temperature
quickly. To DECREASE temperature, tap the “–” button repeatedly, or hold the “–” down to DECREASE the
temperature quickly.
ADVANCED FUNCTIONS
To access the ADVANCED FUNCTIONS menu:
With the display showing the current setpoint temperature, press BOTH “+” AND “–“ buttons simultaneously for
3 seconds and the display will show:
FLOW RATE (GPM or LPM)
Pressing “-“ at any time will display screen title*. Continue tapping the “+” button to display the following (in
this order)
INLET TEMPERATURE (cold water temperature) (°F or °C)
OUTLET TEMPERATURE (hot water temperature) (°F or °C)
Remove screw to access user interface

11
POWER FACTOR (how hard the heater is ‘working’ shown as a percentage)
SOFTWARE REVISION (For Eemax Technical Service use only)
Pressing both “+” and “–“ at any time for 3 seconds returns the display to the temperature set point, or just let
the heater return to set point display on its own (30 seconds timeout).
ERROR CODES & UNITS
From Advanced Menu, press and hold the “+” and “–“ buttons for 10 seconds.
CURRENT ERROR will display. F0 displays if no errors.
Press the “+” button for 1 second to cycle through the following screens:
CURRENT ERROR
PAST ERRORS - Tap the “+” button to cycle through the past 5 previous errors. F0 displays if no errors.
UNITS –Tap the “+” button to cycle between °F/GPM and °C/LPM.
To return to setpoint hold “+” and “–“ for 10 seconds, or just let the heater return to set point display or display
turn-off on its own (30 seconds timeout).
*Screen titles: SET, FLO, IN, OUT, PF, SR, CE, PE1-5, UN

12

13
BASIC TROUBLESHOOTING
Fault
Code
Fault name
Possible causes
Possible Outcome
Reset method
F23
No heat
- element burned out
- ECO tripped/malfunctioning
- interrupted triac
- relay/contactor
malfunctioning
- board failure
- inlet thermistor interrupted
- heater stops until the
fault is cleared
- causing condition
disappears
F24
Low heat
- severe undervoltage
- triac failure
- partial board failure
- partial inlet/outlet
thermistors failure
- heater keeps running
while displaying the fault
code
- manual fault clear or
causing condition
disappears
F33
Shorted triac
- both triacs (triac) failed to
full conduction mode
- heater stops
functioning
- fault cleared only by
power cycling
F34
Overvoltage
- voltage too high compared to
the specified value
- unit will cease to
function
- manual fault clear
F36
Undervoltage
- voltage too low compared to
the specified value
- unit keeps functioning
while displaying the
warning message
- causing condition
disappears
F38
High flow
- flow is too high for the unit
to be able to keep up with
heating water to setpoint
temperature
- Fault code displayed,
unit continues to
operate
- reduce flow below
maximum limit for the
current heater parameters
F47
Inlet
thermistor
failure
- inlet thermistor interrupted
or disconnected
- heater will run based
on outlet detected
temperature
- causing condition
disappears
F48
Outlet
thermistor
failure
- outlet thermistor interrupted
or disconnected
- heater will run based
on inlet temperature
and flow
- causing condition
disappears
F64
Freeze
protect
- inlet temperature too low
- partial inlet thermistor failure
- heater will not run
- causing condition
disappears
F83
Inverted flow
- water flows through the
heater in the wrong direction
- unit will cease to
function
- causing condition
disappears

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PERIODIC MAINTENANCE
This heater is designed for many years of care free use. In order to maintain consistent water flow, it may be
necessary to periodically clean the faucet aerator or the filter screen located in the brass inlet fitting at the
heater.
Heating chamber
Triacs
Energy cut-off (ECO)
Control board
Contactor
ELEMENT CARTRIDGE (pictured below)
INSTALLS INSIDE HEATING CHAMBER
PART NUMBERS FOR FITTINGS, AERATORS AND AERATOR ADAPTORS
COMPRESSION FITTINGS:
AERATORS:
3/8" NUT
EX68B
0.35 GPM
EX0061-0.3-AER
3/8" SLEEVE
EX68C
MALE 13/16"-27 X MALE 55/64"-27
EX61-339
FEMALE 3/4"-27 X MALE 55/64"-27
EX61-341
FEMALE 13/16"-24 X MALE 55/64"-27
EX61-349
MALE 15/16"-27 X MALE 55/64"-27
EX61-336
MALE 11/16"-27 X MALE 55/64"-27
EX60-344
MALE M24X1/FEMALE M22X1 X MALE 55/64"-27
EX61-387

15
REPAIR PARTS FOR “THERMOSTATIC” UNITS
Model number
Element cartridge
Control board
Relay
Energy Cut-Off (ECO)
SPEX1812T
EX800 PRT
EX384-120
EX259B
EX278A
SPEX2412T
EX610
EX384-120
EX259B
EX278A
SPEX3012T
EX480
EX384-120
EX259B
EX278A
SPEX3512T
EX410
EX384-120
EX259B
EX278A
SPEX3208T
EX1440
EX384-240
EX255B
EX278A
SPEX4208T
EX1050
EX384-240
EX255B
EX278A
SPEX8208T
EX520
EX384-240
EX255B
EX278A
SPEX35T
EX1650
EX384-240
EX255B
EX278A
SPEX48T
EX1200
EX384-240
EX255B
EX278A
SPEX55T
EX1050
EX384-240
EX255B
EX278A
SPEX65T
EX890
EX384-240
EX255B
EX278A
SPEX75T
EX770
EX384-240
EX255B
EX278A
SPEX95T
EX630
EX384-240
EX255B
EX278A
SPEX012240T
EX500 PRT
EX384-240
EX1050-1
EX278A
SPEX3277T
EX260
EX384-277
EX253B
EX278A
SPEX4277T
EX1870
EX384-277
EX253B
EX278A
SPEX60T
EX1280
EX384-277
EX253B
EX278A
SPEX80T
EX960
EX384-277
EX253B
EX278A
SPEX90T
EX850
EX384-277
EX253B
EX278A
SPEX100T
EX760
EX384-277
EX253B
EX278A
* If heater has suffix “DI” order element with suffix “SS”
If you need any assistance from our Technical Service Department, make sure you can identify this water heater
by having the model no:____________________ and serial number:_____________________.
Call 203-267-7890 or toll free: 800-543-6163.
Eemax Inc., 400 Captain Neville Drive, Waterbury, CT 06705
Tel: [phone], Fax: [phone], email: [email protected]

16
Notes:
Eemax Inc., 400 Captain Neville Drive, Waterbury, CT 06705
Tel: [phone], Fax: [phone], email: [email protected]
EX07200-81 Rev A