EemaX LavAdvantage SPEX1812T 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 employ 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
5) UNIT OPERATION ........................................................................................................................................... 10
6) TROUBLESHOOTING ....................................................................................................................................... 13
7) PERIODIC MAINTENANCE ............................................................................................................................... 14
8) PART NUMBERS FOR FITTINGS, AERATORS AND AERATOR ADAPTORS ........................................................... 15
9) REPAIR PARTS FOR LavAdvantage 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, Inc.™ 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 a maximum temperature setpoint of 140°F. Models featuring the “S” option can be used as a
temperature booster for sanitation applications up to maximum temperature setpoint of 180°F. “ML” option
units are factory set to a maximum temperature setpoint of 110°F and are recommended for multi-lavatory
handwashing applications – refer to section 2 for supplied aerator details. The “EE” option units are factory set
to a maximum temperature setpoint of 90°F, making them suitable for emergency eyewash applications.
To obtain optimum performance and energy savings, the unit should be located as close as possible to the point-
of-use. The unit is supplied with compression rings and nuts suitable for direct coupling to 3/8” copper or PEX™
piping. Do not use additional screwed fittings, pipe dope or teflon tape – doing so will void the warranty. DO
NOT SOLDER PIPES WHILE THE UNIT IS INSTALLED as serious damage to the heater will result and the warranty
will be voided.

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.
Note: an additional logo decal has been provided to ensure branding is clearly displayed in any mounting
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.
Decal here

5
2) PLUMBING HOOK-UP
The heater is supplied with brass 3/8” compression fittings that are compatible with either copper or plastic
pipes. 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 trunk 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.
System Requirements:
• Minimum/maximum working pressure: 30 PSI/150 PSI
• Optimal operating pressure range: 35 to 80 PSI
• Min flow rate 0.2 GPM
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. FAILURE TO DO SO MAY
CLOG THE HEATER!
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 (do not overtighten compression
fittings) and fully open the inlet and outlet ball valves.
Check the system for water leaks at all plumbing
connections. If a leak is present at the compression fitting,
slowly tighten compression nut until it stops – do not
overtighten.
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(s) (if supplied) will result in lower-
than-expected heater performance**.
Model
# of
Aerators
Model
# of
Aerators
SPEX3512T ML
2
SPEX4208T ML
2
SPEX35T ML
2
SPEX3277T ML
2
SPEX48T ML
2
SPEX4277T ML
2
SPEX55T ML
2
SPEX8208T ML
3
SPEX65T ML
2
SPEX60T ML
2
SPEX75T ML
2
SPEX80T ML
2
SPEX95T ML
3
SPEX90T ML
3
SPEX012240T ML
3
SPEX100T ML
3
SPEX3208T ML
2
**ML thermostatic models are designed to deliver a flow of
0.35 GPM to each lavatory. Please install the supplied
aerators to ensure maximum heating performance.

7
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. For
recommended copper wiring for conductors with a temperature rating of 75°C refer to the chart below:
ELECTRICAL SPECIFICATIONS
LavAdvantage model number
Voltage
(VAC)
Max power
(kW)
Max current
(A)
Minimum wire size
(AWG) @75°C rating
SPEX1812T
120
1.8
15
14
SPEX2412T
120
2.4
20
14
SPEX3012T
120
3
25
12
SPEX3512T
120
3.5
29
10
SPEX35T
240
3.5
15
14
SPEX48T
240
4.8
20
14
SPEX55T
240
5.5
23
12
SPEX65T
240
6.5
27
10
SPEX75T
240
7.5
32
10
SPEX95T
240
9.5
40
8
SPEX012240T
240
11.5
48
8
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
12
SPEX80T
277
8
29
10
SPEX90T
277
9
33
10
SPEX100T
277
10
36
8
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.

8
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

9
3. Keep water flowing through the faucet for the next step.
4. The display on the circuit board should come “ON”. With
the flow running, the heater will go through the 60 seconds
SafeStart™/self-calibration procedure. The display will count
down from 60 to 0. When the display timer reaches 45, the
unit starts heating and continues counting down to 0.
5. After the 60 seconds in step 4, the display will show the
temperature setpoint.
The heater is 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
94
66
33
22
16
13
11
SPEX55T
107
75
38
25
19
15
13
SPEX65T
127
89
44
30
22
18
15
SPEX75T
146
102
51
34
26
20
17
SPEX95T
185
130
65
43
32
26
22
SPEX012240T
224
157
79
52
39
31
26
SPEX3208T
59
41
20
14
10
8
7
SPEX4208T
80
56
28
19
14
11
9
SPEX8208T
162
113
57
38
28
23
19
SPEX3277T
59
41
20
14
10
8
7
SPEX4277T
78
56
28
19
14
11
9
SPEX60T
117
82
41
27
20
16
14
SPEX80T
156
109
55
36
27
22
18
SPEX90T
176
123
61
41
31
25
20
SPEX100T
195
137
68
46
34
27
23
NOTE: The heaters’ actual temperature rises are limited by their thermostatic controls (max 90°F, max 110°F,
max 140°F, max 180°F, based on model suffix). The theoretical values shown above are only for comparison
purposes.

10
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 setpoint temperature and will display this temperature for 5
minutes after the unit is active.
Factory temperature setpoints/maximum adjustable range:
- Standard models: 120°F (70°F to 140°F)
o Units 3.5 kW and below: 105°F
- S (sanitation) models: 120°F (70°F to 180°F)
- ML (multi-lavatory) models: 110°F (70°F to 110°F)
- EE (emergency eyewash) models: 90°F (70°F to 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 (FLO, IN, OUT, PF, SR).
Continue tapping the “+” button to display the following (in this order):
INLET TEMPERATURE (cold water temperature) (°F or °C)
Remove screw to access user interface

11
OUTLET TEMPERATURE (hot water temperature) (°F or °C)
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 (120 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.
Pressing “-“ at any time will display screen title (CE, PE1-5, UN, ECO).
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.
NON-SILENT MODE – Tap the “+” button to toggle non-silent operation ON/OFF.
To return to setpoint hold “+” and “–“ for 10 seconds, or just let the heater return to setpoint display or display
turn-off on its own (120 seconds timeout).

12
Temperature Setpoint
SET
°F/°C
Flow Rate
FLO
GPM/LPM
Inlet Temperature
IN
°F/°C
Outlet Temperature
OUT
°F/°C
Power Factor
PF
Software Revision #
SR
Past Errors
PE1-5
F
Click + for next error
Current Errors
CE
F
Click + for next error
Units
UN
Click + to cycle units
°F & GPM or °C and LPM
Eco Mode
ECO
Click + to cycle ON/OFF
Click +
Click +
Click +
Click +
Click +
Hold + for 1s
Hold + for 1s Hold + for 1s Hold + for 1s
Hold + & - for 10s
Hold + & - for 10s
Hold + & - for 3s
Hold + & - for 3s
Temperature Setpoint – SET
Click + to increase temp. Click – to decrease temp. Hold + to increase temp. faster Hold – to decrease temp. faster
Setpoint Advanced Error Codes & Units
Advanced Menu
Click + to cycle through menu Hold – to view parameter name
Error Codes & Units Menu
Click + to cycle through parameter Hold + for 1s to cycle through menu Hold – to decrease temp. faster
Temp. and flow rate are displayed in the chosen unit setting

13
6) TROUBLESHOOTING
CAUTION: Make certain power to unit is “OFF” before removing protective cover FOR ANY REASON.
For status code details, please consult the table below.
Code
Name
Possible causes
Heater response
Possible solutions
F23
No heat
- element failure
- ECO tripped/malfunctioning
- triac(s) failed open
- relay/contactor malfunctioning
- control board failure
- inlet water supply out of spec
Heating will be disabled after
30 seconds of continuous no
heat condition.
- measure element
resistance with the unit
completely turned off
F24
Low heat
- undervoltage
- triac(s) failed open
- control board failure
- inlet/outlet thermistor(s) failure
Heating enabled, reduced
performance (lower outlet
temperature).
- verify power supply
(voltage) while heater is
running
F33
Residual heat
- internal water temperature elevated
without flow
- both triacs failed closed
Heating disabled until outlet
temperature falls below the
reactivation temperature
(see default parameters
table).
- run water through the unit
F34
Overvoltage
- inlet voltage is too high compared to
the stated heater specifications
Heating enabled, reduced
performance (higher outlet
temperature).
- have certified personnel
verify the inlet voltage
- provide voltage within
specified range
F36
Undervoltage
- inlet voltage is too low compared to
the stated heater specifications
Heating enabled, reduced
performance (lower outlet
temperature).
- have certified personnel
verify the inlet voltage
- provide voltage within
specified range
F38
High flow
- flow is too high to heat the water to
setpoint temperature
Heating enabled, unit
operates as intended (lower
outlet temperature
possible).
- reduce flow (outlet flow
restrictor, faucet aerator)
F47
Inlet thermistor
failure
- inlet thermistor interrupted or
disconnected
Heating enabled based on
default inlet temperature
setting (see default
parameters table;
higher/lower outlet
temperature possible).
- inspect connections/wiring
of inlet thermistor
F48
Outlet
thermistor
failure
- outlet thermistor interrupted or
disconnected
Heating enabled, auto
calibration disabled.
- inspect connections/wiring
of outlet thermistor
F64
Freeze warning
- inlet temperature is too low (below
35°F)
Heating disabled while
condition is present.
- increase inlet water
temperature above 35°F
Still having trouble? Please call our Technical Service Department.

14
Default parameters:
Status code
Model suffix
Default values
F33
T, ML
Trip
170°F
Reactivation
140°F
EE
Trip
100°F
Reactivation
95°F
S
Trip
195°F
Reactivation
165°F
F47
T, ML, EE, S
65°F
7) 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

15
8) PART NUMBERS FOR FITTINGS, AERATORS AND AERATOR ADAPTORS
COMPRESSION FITTINGS:
MALE 13/16"-27 X MALE 55/64"-27
EX61-339
3/8" NUT
EX68B
FEMALE 3/4"-27 X MALE 55/64"-27
EX61-341
3/8" SLEEVE
EX68C
FEMALE 13/16"-24 X MALE 55/64"-27
EX61-349
MALE 15/16"-27 X MALE 55/64"-27
EX61-336
AERATORS:
MALE 11/16"-27 X MALE 55/64"-27
EX61-344
0.35 GPM
EX0061-0.3-AER
MALE M24X1/FEMALE M22X1 X MALE 55/64"-27
EX61-387
9) REPAIR PARTS FOR LavAdvantage UNITS
Model number
Element cartridge
Control board
Relay
Energy Cut-Off (ECO)
SPEX1812T
EX800 PRT
EX384-120
EX259B
EX278A-KIT
SPEX2412T
EX610
EX384-120
EX259B
EX278A-KIT
SPEX3012T
EX480
EX384-120
EX259B
EX278A-KIT
SPEX3512T
EX410
EX384-120
EX259B
EX278A-KIT
SPEX3208T
EX1440
EX384-240
EX255B
EX278A-KIT
SPEX4208T
EX1050
EX384-240
EX255B
EX278A-KIT
SPEX8208T
EX520
EX384-240
EX255B
EX278A-KIT
SPEX35T
EX1650
EX384-240
EX255B
EX278A-KIT
SPEX48T
EX1200
EX384-240
EX255B
EX278A-KIT
SPEX55T
EX1050
EX384-240
EX255B
EX278A-KIT
SPEX65T
EX890
EX384-240
EX255B
EX278A-KIT
SPEX75T
EX770
EX384-240
EX255B
EX278A-KIT
SPEX95T
EX630
EX384-240
EX255B
EX278A-KIT
SPEX012240T
EX500 PRT
EX384-240
EX1050-1
EX278A-KIT
SPEX3277T
EX260
EX384-277
EX253B
EX278A-KIT
SPEX4277T
EX1870
EX384-277
EX253B
EX278A-KIT
SPEX60T
EX1280
EX384-277
EX253B
EX278A-KIT
SPEX80T
EX960
EX384-277
EX253B
EX278A-KIT
SPEX90T
EX850
EX384-277
EX253B
EX278A-KIT
SPEX100T
EX760
EX384-277
EX253B
EX278A-KIT
* 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: [e-mail]

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