Eemax AP032208, AP036208, AP041208, AP054208, AP064208 Installation Manual
...
INSTALLATION, OPERATION, AND
MAINTENANCE MANUAL FOR ELECTRIC TANKLESS WATER HEATERS
SPECADVANTAGE | SAFE ADVANTAGE
i
IMPORTANT SAFETY INFORMATION
DANGER
Indicates an imminently hazardous situation which, if not avoided, will result in death
or serious injury.
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in death
or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, may result in minor
or moderate injury.
Hot water can be dangerous. There is a high scald
potential if the thermostat is set too high.
Water temperatures over 125 °F (51 °C) can cause
severe burns or scalding resulting in death.
Hot water can cause first degree burns with
exposure for as little as:
3 seconds at 140 °F (60 °C)
20 seconds at 130 °F (54 °C)
8 minutes at 120 °F (48 °C)
READ ALL INSTRUCTIONS BEFORE USING
ii
IMPORTANT SAFETY INFORMATION
1. You must read and follow all
instructions. Serious bodily injury or
death could occur if you ignore this
warning.
2. All circuit breakers and/or disconnect
switches servicing the heater must be
turned off when installing, uninstalling,
or repairing this water heater.
3. The unit must be installed by a
licensed electrician and plumber.
4. The unit must be wired in accordance
with the current version of the
National Electrical Code (US) or
Canadian Electric Code (Canada).
5. This installation must comply with all
national, state, and local plumbing and
electrical codes.
6. When the heater is not within sight of
the electrical circuit breakers, an
additional local means of
disconnection of all ungrounded
conductors must be provided that is
within sight of the appliance or a
circuit breaker lockout must be used.
(Ref. NEC 422.31)
7. Per UL 499, this water heater is not
required to be installed with a
Temperature and Pressure relief valve
(T&P). However, local codes may vary.
In case a T&P relief valve is required, it
must be installed on the outlet hot
water line heater between the heater
and the isolation valve.
8. If the Eemax Tank less Water Heater is
installed in a location where water
damage could occur in the event of a
leak, it is recommended that a drip
pan be installed and connected to a
suitable drain. Alternatively, an active
water leak detector and shut off valve
can be installed to turn off your water
supply in the event a leak is detected.
9. If water supply has a high mineral
content, a water softening system is
recommended. Damage to the water
heater resulting from scale or hard
minerals will not be covered under
warranty.
READ ALL INSTRUCTIONS BEFORE USING
iii
IMPORTANT SAFETY INFORMATION
10. When the heater is installed in a well
water system or if the plumbing
system is prone to introducing air into
the heater, it is highly recommended
that an air separator be installed in the
cold water feed to the heater to avoid
possible failure of the heating element
and/or heating chamber.
11. In accordance with NEC guideline, this
water heater is designed for a
continuous duty cycle of 3 hours at
100% power output. Exceeding this
rating could damage the heater and
void the warranty
12. Provide your heater with potable,
uninterrupted supply of water at a
constant minimum pressure of 35PSI
(based on model) and maximum
pressure of 150 PSI.
13. Use of Water Hammer Arrestors in
applications with excess pipe lengths
or fast acting valves strongly
recommended, neglecting to do so will
damage the heater and void the
warranty
14. This heater must be in a location
where it is not subject to freezing
temperatures unless supplied with
factory installed freeze protection
15. Properly purge air out of system
before power is applied.
Recommended to purge water
through system for minimum 2
minutes at a minimum 15 gpm, closing
and opening drain valve 3 times to
move any lodged air before power is
applied.
16. Sanitation models used in a circulator
system, a 30 second factory set delay
program will be installed to establish
flow before power is applied. Contact
Eemax for information 1-800-543-6163
17. Applications with the use of a
recirculation circulator must be
installed according schematics.
18. The use of Ethylene glycol antifreeze
is strictly prohibited. Propylene Glycol
is the only recommended antifreeze
READ ALL INSTRUCTIONS BEFORE USING
iv
v
TABLE OF CONTENTS
PERFORMANCE FEATURES................................................................................................................. 1
OPERATION PRINCIPLE ...................................................................................................................... 3
MOUNTING THE HEATER TO THE WALL ............................................................................................. 4
ELECTRICAL HOOKUP ........................................................................................................................ 5
PLUMBING HOOKUP ......................................................................................................................... 7
COMMISSIONING THE WATER HEATER ............................................................................................ 10
MONITORING & PREVENTIVE MAINTENANCE .................................................................................. 14
CONTROL FEATURES ....................................................................................................................... 15
TROUBLESHOOTING PROCEDURES .................................................................................................. 18
TECHNICAL SUPPORT ...................................................................................................................... 20
APPLICATIONS SCHEMATICS ............................................................................................................ 24
WIRING SCHEMATICS ...................................................................................................................... 61
1
PERFORMANCE FEATURES
Heating Technology
Field Replaceable, non-ferrous, lead-free cartridge-style direct heating element
Safety and Reliability
Thermo-Optical sensor for protection against entrained air or improper commissioning
Materials and Construction
NSF-61 listed materials of construction
Control and Consumption
Active energy management to ensure optimal application of energy based on real-time system demands
Multistage element turn-on
Visual user interface for field programming
Turn-on Flow Rate
Integrated high-capacity flow meter
Field adjustable maximum activation flow rate (minimum activation flow rate factory set and is not field
adjustable.)
Pressure Rating
Operating pressure range not to exceed 60 – 90 PSI. Maximum pressure rating 150 psi
Available Enclosures
N4 – NEMA 4 (Standard)
N4X – NEMA 4X 304SS
N4X6 – NEMA 4X 316SS
Class l Div II enclosures
Optional Features
Indoor disconnect switch (fused or non-fused)
Stand Kits (for freestanding applications)
Beacon
Siren
Alarm contacts
GFCI
FREEZE PROTECTION
Additional Options available per customer request
2
3
OPERATION PRINCIPLE
MODEL
TURN-ON
GPM
3.0
GPM
4.0
GPM
6.0
GPM
8.0
GPM
12.0
GPM
20.0
GPM
25.0
GPM
30.0
GPM
AP032208
1.0
73
55
36
27
18
10 8 7
AP036208
1.0
82
61
41
29
20
12 9 8
AP041208
1.0
93
70
47
35
23
13
11
9
AP054208
1.5
123
92
61
46
31
18
14
12
AP064208
2.5
146
109
73
55
36
22
17
15
AP036480
1.0
82
61
41
31
20
12 9 8
AP039480
1.0
89
67
44
33
22
13
11
7
AP048480
1.0
109
82
55
41
27
16
13
11
AP054480
1.5
123
92
61
46
31
18
14
12
AP063480
2.5
143
108
72
53
36
22
17
14
AP072480
2.5
147
123
82
61
41
25
20
16
AP096480
2.5 - -
109
82
54
33
26
22
AP108480
2.5 - -
99
92
61
37
30
25
AP126480
2.5 - -
143
107
72
43
34
29
AP144480
2.5 - - - 122
82
49
40
34
AP130600
2.5 - - - 111
73
44
35
30
AP150600
2.5 - - - 128
85
52
40
35
How the Eemax Tankless Water Heater Works
Operating the new Eemax tankless water heater is similar to using any traditional water heater system. However, it is
very important that all of the set-up procedures and operating instructions are carefully read to ensure maximum
performance and energy savings from the water heater.
The Eemax tankless water heater does not store hot water like a conventional tank-type water heater. It contains high
powered bare wire technology heating elements that are capable of heating water instantly on-demand. Whenever
there is a hot water demand, the patented flow meter within the heater recognizes the demand and initiates the
heating process. This meter measures the water flow rate while two thermistor sensors measure the incoming and
outgoing water temperature. This information is transmitted continually to the microprocessor controller which
determines the precise amount of power to send to the heating elements to heat the water to the desired temperature.
The Eemax tankless water heater only uses as much power as is needed to meet the demand by fully modulating the
heating elements from 0 to 100%.
It is important to keep in mind that all tankless water heaters are subject to a maximum flow rate. If this flow rate is
exceeded, the heater will not be capable of fully heating water. The amount of water that can be heated by the tankless
water heater at any given time will depend on the model selected and the incoming water temperature. See diagram
on below to determine the maximum flow rates. Since a tankless water heater eliminates the ongoing thermal losses
caused by storing hot water in a tank, there will be a significant energy savings compared to a conventional tank type
water heater.
Temperature Rise at Specified Flow Rate (°F)
4
MOUNTING THE HEATER TO THE WALL
CAUTION
This heater must be installed in a location where it is not subject to freezing
temperatures, unless supplied with factory installed freeze protection
10” Top Clearance
8” Clearance
8” Clearance
18” Clearance
Please follow the mounting instructions as appropriate to your installation. Eemax recommends the heater be installed
close to the point of use.
Make sure the brass fittings are at the bottom of the heater. No other heater orientation is permitted.
The AP series is approved for zero clearance to combustibles.
Above clearances recommended for service and installation.
5
ELECTRICAL HOOKUP
WARNING
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.
Before starting any electrical work VERIFY there is
no power at the heater before proceeding
Fig. 1
L1 L2 L3 GND
Fig. 2
L1 L2 L3 GND
WARNING
FAILURE TO GROUND THE SYSTEM MAY RESULT IN SERIOUS INJURY,
DEATH AND/OR PROPERTY DAMAGE.
Eemax recommends your heater be installed or serviced by a licensed plumber and electrician.
This heater must have its own independent circuit using insulated, UL listed wire conductors of the appropriate size
suitable for up to 90° C and protected by the correctly rated circuit breaker.
See chart on next page.
The power conductors are to be secured to the L1, L2 and L3 connectors on the terminal block (Fig. 1) or
contactor (Fig. 2). The ground is to be secured to the GND connector to the right of the terminal block.
6
Electrical Specifications
MODEL
VOLTS
3-PHASE DELTA
KW
AMPS
PER PHASE
RECOMMENDED
WIRE SIZE (CU) 90° C
AP032208
208
32
89
1 AWG
AP036208
208
36
100
1 AWG
AP041208
208
41
114
1 AWG
AP054208
208
54
150
2/0
AP064208
208
64
178
3/0
AP036480
480
36
44
8 AWG
AP039480
480
39
47
8 AWG
AP048480
480
48
58
6 AWG
AP054480
480
54
65
4 AWG
AP063480
480
63
76
3 AWG
AP072480
480
72
86
3 AWG
AP096480
480
96
116
1 AWG
AP108480
480
108
130
1/0
AP126480
480
126
152
2/0
AP144480
480
144
173
3/0
AP048600
600
48
47
8 AWG
AP051600
600
51
50
6 AWG
AP061600
600
61
59
6 AWG
AP071600
600
71
69
4 AWG
AP102600
600
102
99
1 AWG
AP130600
600
130
130
1 AWG
AP150600
600
150
145
1/0
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.
7
PLUMBING HOOKUP
CAUTION
Never use pipe dope when making plumbing connections to this heater. Follow
standard industry practice with careful application of Teflon tape. Do not allow Teflon
tape to get into the heater.
CAUTION
Never solder any pipe connections while attached to this heater – damage to the
heater will result. Doing this will void the warranty.
PRV VENT LOCATION. The PRV Vent is not a code
compliant pressure relief valve. Check local codes to
see if a code compliant T&P Relief Valve is required
in your installation.
HOT
WATER
OUT
COLD
WATER
IN
MUST FLUSH LINE A MINIMUM 5 MINUTES, AT A MINIMUM 15 GPM ON INITIAL START UP
The heater is equipped with NPT brass fittings.
Make sure ONLY NPT fittings are used for connection to this heater.
Connect the cold water line with the inlet connection
(RIGHT fitting)
Connect the outlet pipe with the outlet fitting
(LEFT fitting)
Do not reverse connections.
8
WARNING
MUST FLUSH OUT WATER HEATER FOR MINIMUM 5 MINUTES AT A MINIMUM 15
GPM ON INITIAL START UP OR AFTER ANY SERVICE WORK HAS BEEN PERFORMED.
CLOSE AND OPEN DRAIN VALVE 3 TIMES TO REMOVE ANY LODGED AIR BUBBLES.
FAILURE TO DO SO MAY DAMAGE THE HEATER.
MINIMUM INLET WATER PRESSURE 35 PSI DYNAMIC.
MAXIMUM WATER PRESSURE NOT TO EXCEED 150 PSI. RECOMMENDED
OPERATING PRESSURE 60 – 90 PSI.
USE OF A PRESSURE REGULATOR RECOMMENDED.
Water supply inlet piping must be a minimum 1 ¼” pipe diameter and it must be a
dedicated supply line. 2 ½” minimum pipe diameter on trunk main when part of a
branch system.
THE USE OF DI-ELECTRIC UNIONS MUST BE USED ON THE INLET AND OUTLET
PORTS OF THE WATER HEATER. RECOMMENDED 40 MESH Y STRAINER BE INSTALLED
IN COLD WATER INLET TO PREVENT DEBRIS FROM ENTERING THE WATER CHAMBERS.
BLOCKAGE CAUSED BY DEBRIS MAY CAUSE ELEMENT FAILURE. ISOLATION VALVES
RECOMMENDED FOR SERVICING
In applications where a long duty cycle is needed (more than 3 hours continuous
run time), or a short duty cycle (less than 30 sec. on time with less than minute off
time) please contact applications department. 1-800-543-6163
HAMMER ARRESTOR: SYSTEMS WITH A LARGE WATER VOLUME, OR LONG
LENGTHS OF PIPING CAN BE SUSCEPTIBLE TO WATER HAMMER. THE USE OF SLOW
ACTING VALVES ALONG WITH THE INSTALLATION OF A WATER HAMMER ARRESTOR IS
HIGHLY RECOMMENDED ON ALL UNITS. FAILURE TO INSTALL A WATER HAMMER
ARRESTOR CAN CAUSE DAMAGE TO WATER HEATER AND VOID WARRANTY- Refer to
manufacturer’s installation manual for proper size and installation location.
9
CONSTITUENT (MG/L)
MINIMUM REQUIREMENT
BETTER
BEST
Alkalinity
50
25
10
Calcium
25
5
0.5
Carbon Dioxide
0
0
0
Chlorine
100
15
1
Free Chlorine 1 1
0.05
Iron
0.2
0.1
0.01
Magnesium as Mg
0.5
0.1
0.1
Magnesium as Mn
0.1
0.1
0.1
Nitrate
25
25
10
Oxygen 2 1
0.1
Silica
15
10
1
Sodium
50
10
1
Sulfate
25
25
1
TDS*
200
100
5**
Total Hardness
25
10
1
pH
6.5 – 8.5
6.5 – 8.5
6.5 – 8.5
Turbidity (NTU)
5
5
1
* NOTE: Total dissolved solids
** NOTE: Do not reduce the TDS beyond this amount or the water will be too aggressive
Proper water conditions must be maintained to prevent damage to the water heater.
10
COMMISSIONING THE WATER HEATER
CAUTION
BEFORE SWITCHING THE ELECTRICAL BREAKER “ON”, MAKE SURE THE INLET AND
OUTLET BALL VALVES ARE FULLY OPEN AND WATER IS FLOWING THROUGH ALL
POINTS OF USE FOR A MINIMUM OF 5 MINUTES AT A MINIMUM 15 GPM. Open and
close drain valve 3 times while purging to remove any lodged air bubbles. DO NOT
SWITCH THE BREAKER “ON” IF THERE IS ANY POSSIBILITY THE WATER IN THE HEATER
IS FROZEN.
After verifying the heater has been purged of air (see above)
turn the circuit breaker/disconnect “ON” and observe the
start-up sequence on the display. The LCD screen will display
the SETPOINT TEMPERATURE in degrees F.
Below the display are 4 push buttons that are used to control
the function of the heater. Press the UP or DOWN buttons to
establish your desired temperature. Refer to the CONTROL
FEATURES section of this manual for additional information.
SETPOINT
TEMP 120F
11
Startup Process
Important - Read and fully understand all steps outlined below before proceeding. Failure to do so may damage the
water heater and void any warranty. Technical support is available at 1 (800) 543-6163
Plumbing Installation Checklist
Step
Category
Action
Confirmed By
Notes
1
Water
Heater is supplied with clean potable water
2
Water
Plumbing orientation is correct – water connections on the bottom - inlet on
the right, outlet on the left
3
Water
Ensure piping connections are not causing stress or torque on the inlet and
outlet fittings
4
Water
No leaks at water connection or in plumbing network
5 Water
Water pressure is between 40-90 PSI (min 35psi)
6
Water
Long pipe runs, high flow rates and valves closing can cause pressure spikes
(water hammer) above 1000 PSI. Consult piping schematic to ensure
arrestors and regulators are properly sized and located.
7
Water
(with power off) Open supply valves to water heater - run water through
fixtures to purge all air and debris in system. With water flowing, visually
inspect the clear element tubes between the inlet and outlet manifold to
ensure no air bubbles are present. (this may take several minutes)
8
Water
Using a flashlight, visually inspect heating chamber for any signs of leakage
9 Water
Ensure Water Heater will not freeze
10
Water
Ensure all local plumbing codes are met
11
Water
Plumbing installation correct and complete
Important - Read and fully understand all steps outlined below before proceeding. Failure to do so may damage the
water heater and void any warranty. Technical support is available at 1 (800) 543-6163
Electrical Installation Checklist
Step
Category
Action
Confirmed By
Notes
12
Power
(with power off) - Breaker and disconnect are of proper size and correctly
installed
13
Power
(with power off) - Wiring and conduit are of proper size and correctly
installed.
14
Power
(with power off) - Wiring connections at terminals are correct orientation,
tight, with no stray wire strands or pinched sheathing
15
Power
(with power off) - Proper ground,(not neutral) is clean, and tight
16
Power
(no water flowing, do not turn it on, close outlet water shut off valve if
uncontrolled environment-left hand side) Apply power - ensure voltage
and phasing is according to model rating
17
Power
Disengage power after voltage and phasing is confirmed (open outlet
shutoff valve if closed during step 14)
18
Power
Ensure all local electrical codes are met
19
Power
Electrical Installation correct and complete
Plumbing Installation Checklist MUST BE FILLED OUT AND LEFT WITH WATER HEATER. MUST FLUSH WATER HEATER
FOR MINIMUM 5 MINUTES AT A MINIMUM.
Eemax Installation Checklist and Startup Procedure for SafeAdvantage and SpecAdvantage Water Heaters
12
Important - Read and fully understand all steps outlined below before proceeding. Failure to do so may damage the
water heater and void any warranty. Technical support is available at 1 (800) 543-6163
Startup Procedure and Checklist
Step
Category
Action
Confirmed By
Notes
20
Startup
Water requirements (Steps 1-11) are confirmed
21
Startup
Electrical requirements (Steps 12-19) are confirmed
22
Startup
Plumbing Codes and Electrical Codes are met and confirmed
23
Startup
(with power off) Open supply valves to water heater - run water through
fixtures to purge all air and debris in system. With water flowing, visually
inspect the clear element tubes between the inlet and outlet manifold to
ensure no air bubbles are present. (this may take several minutes)
Chugging or burping of water is also an indication of air
24
Startup
Turn off water flow at all fixtures, keeping water heater supply valves open
25
Startup
Apply power to water heater
26
Startup
Turn water flow on at fixtures
27
Startup
LCD display board is illuminated
28
Startup
Contactors engaged (audible click)
29
Startup
No error codes
30
Startup
Scroll through display (If display is locked, consult manual for unlock
procedure)
31
Startup
Adjust settings if needed. Note - Keep temperature setting as low as
possible for scald potential and minimizing abuse on the heater.
32
Startup
Confirm TURN-ON setting meets fixture flow rate
33
Startup
Confirm SETPOINT setting on display
34
Startup
Confirm ACTUAL TEMP output on display
35
Startup
If SETPOINT does not match ACTUAL TEMP then use the TEMPERATURE
RISE CHART in manual along with LOAD%, INLET TEMP and FLOW RATE on
display to determine the maximum theoretical output.
36
Startup
Shut water flow off at fixture
37
Startup
Power disengaged (audible)
38
Startup
Repeat startup steps 25-28 to ensure proper activation and performance
39
Startup
Water heater installed correctly and operating as designed
After all steps are completed, the heater is fully installed and ready for use.
13
Shutdown Process (Normal, Emergency, and Long Term)
Important - Read and fully understand all steps outlined below before proceeding. Failure to do so may damage
the water heater and void any warranty. Technical support is available at 1 (800) 543-6163
Step
Category
Action
Confirmed By
Notes
Normal Shut Down Procedure
1
Normal
Shut power off to unit in order of sequence - In-door (on-door)
disconnect (if applicable) local disconnect, main breaker - perform
lock out procedure per facilities requirements
2
Normal
Close applicable water valves - Inlet and outlet (water heater will
not be drained)
Emergency Shut Down Procedure
1
Emergency
Shut power off to unit In-door (on door) disconnect (if applicable) or
local disconnect
2
Emergency
Shut water valves off - inlet and outlet (water heater will not be
drained)
3
Emergency
Complete lock out procedures per facilities requirements
4
Emergency
Notify all parties involved that water heaters are shut down
Long Term Shut Down Procedure
1
Long Term
Shut power off to unit in order of sequence - Indoor disconnect (if
applicable) local disconnect, main breaker - perform lock out
procedure per facilities requirements
2
Long Term
Close applicable water valves - Inlet and outlet (water heater will
not be drained)
3
Long Term
Drain water heater through plumbing network, run compressed air
through the water heater to ensure the heater is completely
drained
4
Long Term
Lock out all applicable water valves per facilities procedures
Shut Down Procedure
14
MONITORING & PREVENT IVE MAINTENANCE
Recommended routine instrument readings and operation checking: Please note the instrument readings are
performed during water heater operation. No readings are required when the unit is not being used. Check the
following readings on the Remote display and ensure proper performance:
Inlet temperature
Temperature set point
Actual outlet temperature
Actual GPM
Error codes
Early warning signs of developing operational or equipment problems:
Based on the readings of 3A above water heater unit appears to be performing properly however there are
error codes.
Actual GPM appears to be lower than desired
Procedures for handling non-routine problems such as alarms, power failure, and component failure:
No alarms are built into the unit
Power failure will result in a non-operable system – restore power and startup unit per Start up process (2C)
Component failure will result in repeat error codes. Refer to manual page 16 for error codes and corrective
action
Preventative maintenance requirements: (PMR) Preventive maintenance requirements may impact other items of the
installation such as electrical supply and wiring, water piping and associated valves and controls.
Eemax water heaters are very low maintenance.
Ensure that the water heater is supplied with a clean potable, consistent water supply as outlined in the O+M.
Check filter screen or associated y-strainer or other pre-filters to ensure clear water supply within listed water pressure.
Ensure proper electrical supply as outlined within the O+M.
Perform PMR per site requirements not to exceed 90 days.
Maintenance inspection program: (MIP) Eemax water heaters are very low maintenance. Ensure PMR is completed
every 90 days.
Disable power to the unit via external disconnect or local disconnects. Per site lockout procedures open cabinet door
and visually inspect components for sings of damage associated with possible water leaks, excessive heat or external
factors that could impact the water heater and associated components.
Perform MIP per site requirements not to exceed 90 days.
15
CONTROL FEATURES
CAUTION
BEFORE USING THIS CONTROL, make sure all prior installation steps have been
properly completed, electrical power is on and water is present in the heater.
1) The SETPOINT TEMP or ACTUAL TEMP screen can be
selected for display as the home screen. Either of these
screens will remain on the display when the backlight timer
expires.
OR
2) There is a 5-minute time delay built into the control.
Regardless of which screen is being displayed, after 5
minutes of inactivity, the display will revert to the SETPOINT
TEMP screen.
3) The 4 push buttons are used to control the operation of
the heater. The LEFT and RIGHT buttons shift the display
from one screen to another. The DOWN and UP buttons may
change the values within selected screens.
4) As an example, when the screen displays SETPOINT TEMP,
the desired hot water temperature will increase 1 degree for
each press of the UP button and decrease 1 degree for each
press of the DOWN button. Note that minimum and
maximum set point temperatures are established at the
factory.
5) The LEFT and RIGHT buttons shift the display from one
screen to another. From the INLET TEMP screen, one press
of the RIGHT button will shift the display to the SETPOINT
TEMP screen. INLET TEMP shows the actual temperature of
the water entering the heater.
6) From the SETPOINT TEMP screen, one press of the RIGHT
button will shift the display to the ACTUAL TEMP screen. This
shows the actual temperature of the water leaving the
heater.
7) Form the ACTUAL TEMP screen, one press of the RIGHT
button will shift the display to the LOAD PCT screen. This
shows the electrical power consumption as a percentage of
full power.
ACTUAL
TEMP 75F
SETPOINT
TEMP120F
SETPOINT
TEMP120F
SETPOINT
TEMP120F
SETPOINT
TEMP120F
INLET
TEMP 75F
ACTUAL
TEMP 75F
SETPOINT
TEMP120F
LOAD PCT
0% PWR
ACTUAL
TEMP 75F
Push Button Flow Chart
16
8) From the LOAD PCT screen, one press of the RIGHT button
will shift the display to the FLOWRATE screen. This shows the
rate of flow of water through the heater.
9) From the FLOWRATE screen, one press of the RIGHT
button will shift the display to the UNITS screen. This shows
the units of measure in either the ENGLISH or METRIC
systems. ENGLISH units are degrees Fahrenheit and gallons
per minute. METRIC units are degrees Celsius and liters per
second. Use the UP and DOWN buttons to select the desired
units of measure.
10) From the UNITS screen, one press of the RIGHT button
will shift the display to the SOFTWARE REVISION screen. This
shows the revision level of the software in the control.
11) From the SOFTWARE REVISION SCREEN, one press of the
right button will shift the display to the ERRORS screen. This
shows the error history of the heater. “0 ERRORS” means
that no errors have occurred.
If the heater has an error history of 4 errors: this history will
be displayed on the screen as shown. “CODE 1:E0” refers to
the first error and indicates it to be an E0 error. One press of
the UP button will show the second error as “CODE 2:E0”
error.
Continued pressing of the UP or DOWN buttons will scroll
through each of the errors in the history (in this case a total
of 4). ERRORS indicate an undesirable condition but will not
shut down the operation of the heater
CAUTION
Keep the INLET BALL VALVE fully “OPEN”. NEVER RESTRICT THE WATER FLOW USING
THE INLET VALVE.
FLOWRATE
??? GPM
LOAD PCT
0% PWR
UNITS
ENGLISH
FLOWRATE
??? GPM
SOFTWARE
20131218
UNITS
ENGLISH
1 ERROR
CODE1:F0
SOFTWARE
20131218
Error Codes
E0: Excessive water flow detected
Corrective action: Using the OUTLET BALL VALVE, slowly reduce water flow until the desired temperature is achieved.
The temperature is proportional to the flow through the heater; the lower the flow, the higher the temperature and
vice versa.
E1: Inlet temperature too hot to generate heat
17
12) FAULTS are communicated through the LCD display. The
display will switch from the SETPOINT screen to the FAULT
screen and back again every 3 seconds. FAULTS indicate an
undesirable condition and will immediately shut down the
operation of the heater. If faults are appearing on your heater
call Eemax Technical Support for assistance.
13) The security of the heater settings is provided by pressing
and holding the LEFT and UP buttons for 3 seconds to lock the
buttons. Once locked, the buttons have no function. Press and
hold the same LEFT and UP buttons for 3 seconds to unlock the
buttons.
The security status can be checked at any time by pressing any
one button. If the system is locked, the screen will display
“BUTTONS LOCKED”.
[ + ] =
14) The display can be turned off or on. Press and hold the
DOWN and RIGHT buttons for 3 seconds. If the display is off, it
can be turned on by pressing and holding the same DOWN and
RIGHT buttons for 3 seconds.
+
1 ERROR
CODE1:F0
SOFTWARE
20131218
BUTTONS
LOCKED
F0: Outlet thermistor out of range
F1: No change in water temperature detected
F2: Dry fire detected - Optical Sensor Tripped
F3: Excessive dry fire occurrences detected
F4: Inlet thermistor out of range
Fault Codes
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