Eemax PA019240TC ProAdvantage™ 19 kW 240V Electric Tankless Water Heater Installation Manual

Add to My manuals
10 Pages

advertisement

Eemax PA019240TC ProAdvantageā„¢ 19 kW 240V Electric Tankless Water Heater Installation Manual | Manualzz

EEMAX

ProAdvantage Series

ELECTRIC INSTANTANEOUS WATER HEATER

INSTALLATION GUIDE AND OWNER’S MANUAL

MODELS

COVERED:

PA

PA

240 - * 1Φ 240V - Series 2

277 - * 1Φ 277V - Series 2

WARNING

READ THE GENERAL SAFETY SECTION AND THE ENTIRE MANUAL BEFORE

INSTALLING OR OPERATING THIS WATER HEATER. FAILURE TO FOLLOW

THE SAFETY RULES MAY CAUSE THE UNIT TO OPERATE IMPROPERLY,

WHICH COULD LEAD TO DEATH, SERIOUS BODILY INJURY AND/OR

PROPERTY DAMAGE. READ THE ENCLOSED WARRANTY CARD. WARRANTY

OF THIS WATER HEATER WILL DEPEND ON PROPER INSTALLATION AND

OPERATION. THE WARRANTY SHALL BE VOID IF THE DESIGN HAS BEEN

ALTERED. THE MANUFACTURER OF THIS HEATER WILL NOT BE LIABLE FOR

AND OPERATING INSTRUCTIONS OUTLINED ON THE FOLLOWING PAGES.

THIS UNIT HAS TWO INDEPENDANT DEDICATED POWER CIRCUITS.

DISCONNECT BOTH POWER CIRCUITS BEFORE SERVICING.

THE INSTALLATION MUST CONFORM TO THE INSTRUCTIONS IN

THIS MANUAL; ELECTRIC COMPANY RULES; AND LOCAL CODES, OR IN

THE ABSENCE OF LOCAL CODES, WITH THE LATEST EDITION OF THE

NATIONAL ELECTRICAL CODE. THESE PUBLICATIONS ARE AVAILABLE FROM

YOUR LOCAL GOVERNMENT, PUBLIC LIBRARY, OR ELECTRIC COMPANY.

IF YOU REQUIRE ANY HELP OR HAVE ANY QUESTIONS RELATING TO THE

INSTALLATION OR PERFORMANCE OF THIS HEATER, PLEASE CALL OUR

TECHNICAL SERVICE DEPARTMENT TOLL FREE : 1-800-543-6163.

HAVE THE INFORMATION LISTED BELOW WHEN CALLING :

S/N __________ MODEL # _____________________INSTALL DATE__________

1

GENERAL SAFETY

The “Eemax ProAdvantage” heater is specifically designed to take in cold or hot water and heat it up to a maximum of 140F (60C). To obtain optimum performance and energy savings, the unit should be located as near as possible to the point of use.

The unit is supplied with a ¾” NPT pipe connection. Under no circumstances use a blow torch on pipes which are connected to or near these heaters. Carefully use Teflon tape where necessary ensuring no debris will enter the unit. Do not use a pipe dope.

Ensure that all the pipes are clear of debris before fitting the heater.

WARNING

FAILURE TO GROUND THE SYSTEM MAY RESULT IN DEATH OR SERIOUS INJURY.

THIS UNIT HAS TWO DEDICATED INDEPENDANT POWER CIRCUITS.

DISCONNECT BOTH POWER CIRCUITS BEFORE SERVICING.

THIS UNIT HAS TWO DEDICATED INDEPENDENT 240V OR 277V CIRCUITS.

USE CORRECTLY RATED WIRES AND CIRCUIT BREAKERS.

U.L. 499, 18.4. - THE RATING OF THE BRANCH-CIRCUIT OVERCURRENT

PROTECTIVE DEVICE SHALL BE 150% OF THE RATING OF THE PRODUCT.

WARNING

IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE, OR MAINTENANCE,

MAY CAUSE DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE. REFER TO

THIS MANUAL FOR ASSISTANCE OR CONSULT THE LOCAL ELECTRIC UTILITY FOR

FURTHER INFORMATION.

WARNING

WATER HEATERS ARE EQUIPPED FOR ONE VOLTAGE ONLY: THIS WATER HEATER IS

EQUIPPED FOR THE VOLTAGE DISPLAYED ON THE MODEL RATING PLATE. DO NOT

USE THIS WATER HEATER WITH ANY OTHER VOLTAGE OTHER THAN THE ONE

SHOWN ON THE MODEL RATING PLATE. FAILURE TO COMPLY WITH THIS MAY RESULT

IN DEATH, SERIOUS BODILY INJURY, AND/OR PROPERTY DAMAGE. IF YOU HAVE ANY

QUESTIONS OR DOUBTS CONSULT EEMAX OR YOUR LOCAL ELECTRIC COMPANY.

WARNING

HAZARD OF ELECTRICAL SHOCK! BEFORE REMOVING THE COVER OR SERVICING THE

WATER HEATER, MAKE SURE ALL ELECTRICAL SOURCES TO THE WATER HEATER ARE

TURNED “OFF”. FAILURE TO DO THIS MAY RESULT IN DEATH, SERIOUS BODILY INJURY,

OR PROPERTY DAMAGE.

NOTE: THIS UNIT HAS TWO INDEPENDENT DEDICATED ELECTRICAL POWER

CIRCUIT CONNECTIONS.

2

I. MOUNTING THE UNIT

1) The unit should be mounted as close to the point of use as possible.

Do not install the heater above a faucet or “point of use” because the siphoning effect may drain the heater which can cause premature element burn out. If the unit must be installed at a higher elevation, you must install spring loaded check valves on both the inlet and outlet of the water heater.

2) This unit must only be mounted in a vertical position with the water fittings positioned at

the bottom of the unit. Mounting other than in the vertical position will cause element burn out and permanent damage to the water heater.

3) The cold water inlet is on the right hand side and the hot water outlet is on the left hand side as marked by the fittings of the unit. Under NO circumstances can these be reversed.

4) Leave a minimum of 8” above the unit for easy replacement of the element.

5) The heater should be fixed to the wall using all four mounting holes of the backplate.

Use an appropriate fastener for the weight. For the unit to be mounted against hollow walls, we suggest using steel wall anchors with the correct grip range, and #10-32 screws at a minimum.

heater. Otherwise install spring loaded check valves on both the inlet and outlet.

NOTE: PRESSURE AND TEMPERATURE RELIEF VALVE

These units are not required by UL to have a Pressure and Temperature Relief

Valve (PTRV). You should check with local codes to find out if one is required in your area. If local codes require the use of a temperature and pressure relief valve it should be installed on the outlet hot water pipe before the outlet ball valve.

Lavatory

Shower

Kitchen

MODELS:

PA

PA

240 - * 1Φ 240V - Series 2

277 - * 1Φ 277V - Series 2

Eemax

Hot outlet

Cold inlet

3

Mounting Layout for Series 2 Systems

Figure 1

4

II. PLUMBING HOOK-UP

1) The unit is supplied with ¾’’ NPT fittings (Fig. 2a), USE THESE. DO NOT USE

PIPE DOPE AND DO NOT SOLDER TO THE INLET OR OUTLET.

2) Take care to ensure that the pipes are correctly aligned with the inlet and outlet bosses in order to avoid excessive stress on the heater body molding.

NOTE: When soldering pipe joints remove heater from the wall. Serious damage can occur if any soldering is done while pipes are connected to the heater.

When tighten the fittings make sure to secure the fitting inside the heater to make a tight connection.

Run water through the supply pipe to remove all debris from the pipe before connecting the heater. Failure to do so could cause damage to the flow switch.

3) Install isolating valves (full flow ball valve type) on both inlet and outlet pipes. This allows unit to be isolated for maintenance purposes. (Fig. 2b)

4) When all plumbing is complete, fully check the system for water leaks at all the plumbing connections. If any leaks are present take corrective action. Then fully open both Inlet and

Outlet BALL VALVES, run all the hot water outlets fed by this heater one at a time, for a minute or two, until the water flow is continuous, free from “gulping” and from all visible air pockets.

Inlet filter

HOT OUTLET

¾’’ NPT

FITTING

DO NOT SOLDER

4.0”

Figure 2a

NOTE:

ALL MOUNTING AND PLUMBING MUST BE COMPLETE BEFORE YOU

PROCEED WITH ELECTRICAL HOOK-UP.

TEST THE INSTALLATION FOR LEAKS BEFORE CONNECTING THE

ELECTRICAL SUPPLY.

5

COLD INLET

¾’’ NPT

FITTING

DO NOT SOLDER

MINIMUM - 8” CLEARANCE ABOVE UNIT

Figure 2b

GROUND PEM

STUD

GND

L2

N or

L1

L2

N or

L1

GND

Pipe support

NPT

Elbow

Pipe support

Outlet Isolating

Ball Valve

(throttle open just enough to obtain adequate flow of hot water)

Union

Threaded type

Teflon tape only

No pipe dope

To Two Dedicated

Independent circuit breakers. If applicable -

UL499 18.4, 150% of the products’ current rating.

Inlet isolating valveball valve. (Always leave fully open when unit is in service.)

NOTE: When soldering pipe joints remove heater from the wall. Serious damage can occur if any soldering is done while pipes are connected to the heater.

Take care to ensure that the pipes are correctly aligned with the inlet and outlet bosses in order to avoid excessive stress on the heater body molding.

6

III. ELECTRICAL HOOK-UP

WARNING

BEFORE DOING ANY WORK ON THE UNIT BE SURE BOTH

BREAKERS ARE “OFF” TO AVOID ANY DANGER OF SHOCK.

“Eemax Home Advantage” heaters are manufactured to the following specifications:

M O DE L TY P E

PA 014240

PA 016277

PA 019240

PA 020277

PA 023240

Table 1

V oltage

1φ 240V

1φ 277V

1φ 240V

1φ 277V

1φ 240V k W output

15.0

16.0

19.0

20.0

23.0

A M P E RA G E

63 (2 x 31.5)

58 (2 x 29)

80 ( 2 x 40)

72 (2 x 36)

96 (2 x 48)

The L1, L2, or N should be connected to the slots in the contactor marked L1 and L2.

(Fig. 2b). The ground lead must be connected to the stud marked GND.

GROUND MUST BE BROUGHT TO THE “GROUND” AT THE CIRCUIT BREAKER PANEL.

dictated by the power requirements of the unit. (Table 1 and Fig. 3)

Figure 3

Circuit Breaker Panel

Dedicated

Single Pole (277 Volts) or

Double Pole (240 Volts)

Circuit or

DANGER

FAILURE TO GROUND THE SYSTEM MAY RESULT IN DEATH OR SERIOUS INJURY.

7

IV COMMISSIONING YOUR HEATER

IMPORTANT

BEFORE SWITCHING “ON” THE POWER AT THE MAIN CIRCUIT BREAKER PANEL

MAKE SURE THAT THE HOT WATER CIRCUIT IS FREE OF AIR POCKETS OR ELSE

PREMATURE FAILURE OF THE ELEMENT WILL OCCUR. TO DO THIS OPEN ALL HOT

WATER OUTLETS ONE AT A TIME FOR A MINUTE OR TWO UNTIL THE WATER FLOW

IS CONTINUOUS AND FREE FROM “GULPING” AND FREE FROM VISIBLE AIR POCKETS.

1) Open fully both inlet and outlet valves at the heater.

2) Open any hot water outlet in the system. If the outlet is a “single lever” mixer type turn to the hottest position. Run for one minute to clear all the air from the system.

3) Slowly close OUTLET ball valve until the water flow from the faucet just starts to reduce.

NOTE: This process has two effects. One, any air in the system will be purged out. Two, the heater units will be pressurized up to the supply pressure. This will prevent the elements from having air pockets when energized.

4) At this point you may energize the hot water heater. Once energized the Thermostatic control touch pad display on the front cover will illuminate. This is where and when you will program

NOTE: Unit will display the programmed temperature, not the actual outlet temperature

Touch Pad Display

140 F

Figure 4

F/C

Increase temperature Decrease temperature Fahrenheit / Celsius

To trouble shoot the display board, shut off power to the unit. Press and hold all three buttons, and re-energize the unit. If display board is working properly, the word “Yes” will display. If the board has a fault it will display “No”. And you should call technical support for a replacement

.

8

TROUBLESHOOTING

SYMPTOM “A”: NO HEAT, INDICATOR LIGHT OFF

1) ELECTRIC SUPPLY IS OFF

Turn on the TWO main circuit breakers. Ensure the breakers are properly connected to the relay. L1/L2 from one breaker must correspond with the same relay. You must be able to get

240V across each relay when powered up independently. Do not use space saving breakers.

2) NO OR LOW WATER FLOW

Ensure that the minimum flow rate to switch on your heater is met. “TC” Models minimum flow rate = 0.70 gallons per minute. Also check that the inlet filter screen is clear from any debris. This is located in the brass inlet boss.

3) WATER CONNECTIONS ARE REVERSED

Correct configuration is:

Cold water inlet = right side, hot water outlet = left side.

4) ELEMENT BURNED OUT

TURN OFF THE TWO MAIN CIRCUIT BREAKERS!

Using an ohmmeter test the resistance of the heating element across the two threaded termination rods on top of the element.

The resistance reading should be roughly 5.0 ohms. If the resistance is much greater than this value, call Eemax for a replacement element.

5) ECO TRIPPED (High Limit Thermostat)

TURN OFF THE TWO MAIN CIRCUIT BREAKERS!

Reset by pushing in red button on each heater module. If the Eco was tripped it will re-engage.

SYMPTOM “B”: NO HEAT OR LOW TEMPERATURE WITH INDICATOR LIGHT ON

1) WATER FLOW TOO HIGH

Reduce the water flow by using an outlet ball valve. See page 9 for temperature rise at various flow rates.

2) INCORRECT POWER SUPPLY

Make sure that the unit is connected to the voltage supply specified on the rating label on the front cover of the unit and no other.

3) ELEMENT BURNED OUT

TURN OFF THE TWO MAIN CIRCUIT BREAKERS!

Repeat the steps from paragraph 4 above.

4) ECO TRIPPED (High Limit Thermostat)

TURN OFF THE TWO MAIN CIRCUIT BREAKERS!

Reset by pushing in red button on each heater module.

10

EX278C

ECO

EX1049-1

TRIAC

EX1050-1

advertisement

Related manuals

advertisement