Benutzeranleitung / Produktwartung HPE10260H045DV des Produzenten American Water Heater
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RESIDENTIAL HYBRID ELECTRIC HEA T PUMP W A TER HEA TER Service Handbook PRINTED IN THE U . S .A. 051 1 321549-000 SERVICE SHOULD ONL Y BE PERFORMED BY A QUALIFIED SER VICE TECHNICIAN FOR MODEL S: HPE10260H045DV (60 GAL.
2 Introduction .................................................................................................................. .......................................... 3 Certi fi cation and Approvals .............................................
3 Introduction: Y our safety , and the safety of others, is extremely important in the servicing of this water heater . Many safety-related messages and instructions have been provided in this handbook and on your water heater to warn you and others of potential hazards.
4 T erms, De fi nitions and Formulas First Hour Rating (FHR) is a volume of hot water delivered by a water heater during a 1-hour , Department Of Energy mandate test procedure. The FHR is given in gallons or liters. Energy Factor (EF) is an indicator of the combined thermal ef fi ciency and standby ef fi ciency of a water heater .
5 Safety Precautions Explosion Hazard 7 HPSHUDWXUHSUHVVXUHUHOLHI YDOYHPXVWFRPSOZLWK $16, =&6$ DQG $60( FRGH 3URSHUO.
6 W ater Heater Location • Centrally located with the water piping system. • The fl ooring beneath the water heater must be able to support the weight of the water heater when fi lled with water (see T able 1).
7 Potential Installation Issues Symptom Cause Solution T emperature set to 60 ºF and not adjustable V acation mode is on T urn off V acation mode by pressing the V acation button Electric mode select.
8 Dry Fire is a term used to describe a heating element that is on and not fully submerged in water . This will result in permanent damage to the element.
9 W ater Piping System Cold W ater Inlet V alve Cold W ater Inlet Pressure Reducing V alve (PRV) should be installed where the water supply enters the residence. In a closed system, use a thermal expansion tank. See “Closed System/ Thermal Expansion” section.
10 tubing so that any discharge from the valve exits only within 6 in. (152mm) above drain, or at any distance below , the structural fl oor , and does not contact any live electrical part. The discharge opening must not be blocked or reduced in size under any circumstance.
11 General Service information • V olts times Amps = W atts • W atts divided by V olts = Amps • Replacement Elements: Use replacement elements that are rated at the same wattage, voltage and shape indicated on the heater model and rating plate. Installing an element with a higher voltage rating or wattage output may create a safety hazard.
12 Operational Overview Heat Pump W ater Heater Operation: Heat pump water heaters remove heat from surrounding air and use that heat to heat water . By doing so, heat pump water heaters can operate much more ef fi ciently and at signi fi cantly lower costs compared to standard electric water heaters.
13 Operating Y our Heat Pump W ater Heater °F/°C LOCK HEAT PUMP ELEMENT EFFICIENCY F VACA TION ELECTRIC HYBRID EFFICIENCY Power Button: On - Green Standby - Red T emperature Down (Decrease) Button T.
14 A B C D Figure 5 Control Board Overview Heat Pump W ater Heater Control Board Overview: The Control Board on the Heat Pump W ater Heater monitors the complete heating system and reports any errors through the User Interface Module (UIM).
15 FUS202 FUS201 CN207 CN201 Figure 6 CN202 CN206 Section “A” CN 201 Line Power: • Pin 1 - Control board power wire L1 (240V AC) • Pin 2 - Control board power wire L2 (240V AC) • Pin 3 - Not.
16 R Y 203 Upper Element Relay: • T erminal 1 - COM Connects to L1 behind the ECO Switch. • T erminal 2 - NO Connects to the upper heating element.
17 Section “C” of Control Board CN 204 Upper and Lower tank water temperature sensors: • Pin 1 - Upper water temperature sensor on tank. • Pin 2 - Upper water temperature sensor on tank. • Pin 3 - Lower water temperature sensor on tank. • Pin 4 - Lower water temperature sensor on tank.
18 CN 21 1/215 UIM Communication Cable: • Pin 1 - +5 V • Pin 2 - +12 V • Pin 3 - Signal A+ • Pin 4 - Signal B+ • Pin 5 - Ground Note: Both CN21 1 and CN215 are identical and either can be used for the UIM communication. CN 208 Overload Detection: • Pin 1 - High pressure switch.
19 Wiring Diagram for Models W ith Relay L1 L2 Red Black Approved Connectors Junction Box Overload Protectio T o 240v 1 Phase Power supply Electrical Service ground Circui Breaker Ground Wire Green n t C R S G COMPRESSOR 1 10 1 5 1 5 1 6 1 4 1 2 1 4 1 2 1 3 1 4 N.
20 Wiring Diagram for Non-Relay Models L1 L2 Red Black Approved Connectors Junction Box Overload Protectio T o 240v 1 Phase Power supply Electrical Service ground Circui Breaker Ground Wire Green n t .
21 Accessing the Maintenance Display The User Interface Module on the front of the heat pump water heater has a multi-function display that gives information about the status and condition of the operation of the water heater .
22 E l ement T est (Continuity T ester) I. Preparing for the T est 1. Press the power button on the User Interface Module (UIM). 2. T urn off power to the water heater at the breaker or disconnect switch serving the water heater . 3. V erify there is no power at the incoming power connections to the water heater with an AC V olt meter .
23 E l ement T est (OhmMeter) IIA. T esting for a Burned Out Element 1. Complete Preparing for the T est before you proceed. 2. Measure the element’s resistance by placing a probe on each terminal. (See graphic at right.) 3. Compare your result with the following: A.
24 Heating Element Replacement Replacement heating elements must be of the same style and V oltage/wattage rating as the ones originally in the water heater . This information can be found on the fl ange or terminal block of the element or on the water heater data plate.
25 Energy Cutout (ECO) Switch T roubleshooting ECO Function and T roubleshooting: An energy cutout (ECO) switch is installed on this water heater to shut down the water heating means in the event of a malfunction. If the upper tank temperature reaches 190°F .
26 THERMAL PROTECTOR AUX. MAIN COMPR. MOTOR RUN CAP ACITOR C SR Figure 17 If the compressor is not operating or is not operating correctly , the run capacitor may be the cause and should be checked. A bad capacitor will typically be either shorted or open.
27 Powered Anode T roubleshooting and Replacement Checking the Powered Anode for Proper Operation: When dissimilar metals are in contact with water , a galvanic cell will likely result and corrosion of the metal components will occur . If left unchecked, corrosion will weaken the wall of a water heater tank which will eventually leak.
28 Compressor Check Flow Chart Compressor Fault Check maintenance display Put unit in stand by W ait eight (8) minutes for compressor time out T urn power off at breaker / fuse panel V erify connectio.
29 Powered Anode Check Flow Chart Powered anode Fault Check connection at anode Check voltage ≈ 2.5 Vdc Check connection at ground Check connection on control board @ CN203 Disconnect CN203 and meas.
30 Fan Check Flow Chart Fan doesn’t operate when compressor is on; no fault on UIM Check voltage at control board connector CN207 between pins 1 and 3 (240V) No Replace control board * Disconnect CN.
31 Fan Check Flow Chart Fan connect fault on UIM Check connection at CN207 Good Reconnect on CN207 Replace fan motor assembly Bad Fault cleared? Done Ye s No Check resistance on fan cable connector pi.
32 T emperature Sensors Overview: The temperature sensors used in this water heater are negative temperature co-ef fi cient (NTC) thermisitors. With this type sensor , as temperature increases, the resistance across the thermisitor decreases or as temperature decreases, resistance will increase.
33 Resistance vs. temperature for ambient and coil thermistors 0 5 10 15 20 25 30 35 0 20 40 60 80 100 120 140 160 180 200 220 Temperature (F) Resistance (k Ohms) Char t #1 Resistance vs.
34 Chart #3 PSIG 5 4 3 2 1 0 1 234567 °F -22 -21 -19 -18 -16 -15 -12 -10 -8 -5 -3 -1 1 PSIG 8 9 10 11 12 13 14 15 16 17 18 19 20 °F 3 5 7 8 10 12 13 15 16 18 19 21 22 PSIG 21 22 23 24 25 26 27 28 29.
35 Cleaning the Evaporator Proper maintenance and cleaning of the supplied, washable air fi lter should prevent the evaporator from getting dirty . However , should the evaporator become dirty , it must be cleaned to maintain performance of the heat pump.
36 T roubleshooting Common Service Problems As a first step in diagnosis and troubleshooting, the unit should be disconnected from power at the breaker/fuse panel for ten seconds, then reconnect power to the unit and determine if the noted error code still appears.
37 T roubleshooting Common Service Problems PROBLEM POSSIBLE CAUSE TEST/CORRECTIVE ACTION HIGHER THAN EXPECTED OPERA TING COSTS: Electric mode selected Change to ef fi ciency or hybrid for reducing e.
38 T roubleshooting Common Service Problems PROBLEM POSSIBLE CAUSE TEST/CORRECTIVE ACTION LEAKS AROUND T ANK FITTINGS (e.g., drain valve, relief valve, etc.): The threads are leaking and need to be resealed Insert a cotton swab between the jacket opening and the fi tting.
39 Upper Element Connect Fault (Upper heating element circuit is open): Loose connection or damaged wire- • T urn off power at the circuit breaker / fuse box and check for a loose connection at the element. For access directions see “Heating Element Replacement” (p.
40 Ambient T emperature Sensor Short or Open or Ad Error (Ambient temperature sensor circuit is not functioning): Loose connection or damaged wire- • T urn off power at the circuit breaker / fuse box. • Check that connector CN212 on control board is seated.
41 Fault Code T roubleshooting Guide connector . Refer to chart #2 (p.33) for expected resistance value. If the measured resistance is >200 Ω or =0 Ω , the thermisitor is faulty . • Replace thermisitor assembly . Control board faulty- • Replace control board.
42 ohms indicates good; high resistance indicates the switch is defective and should be replaced. Heat Pump High T emperature Fault (Compressor discharge temperature is too high): The refrigerant syst.
43 Low Supply V oltage Fault (V ery low input voltage): Power supply voltage is extremely low- • V erify the unit is connected to 240 V AC, unit is intended for 240 V AC connection only .
44 Power Anode Drive V oltage L T T ank V oltage (Powered anode circuit not working): Anode shorted to tank or upper element- • Check for short circuit- 1. Disconnect the red wire from the tab on the anode; use an Ohm meter to check between the wire tab on the anode and the tank.
45 Draining and Filling the W ater Heater D raining and F illing the W ater Heater The water heater should be drained if being shut down during freezing temperatures. Also, periodic draining and cleaning of sediment from the tank may be necessary . 1.
46 Condensate Pump T roubleshooting A condensate pump may be necessary if the drain point is above the level of the condensate drain on the heat pump water heater .
47 Service Parts List for 60 and 80 Gallon Heat Pump W ater Heaters Item Part Number 1. Ambient / Discharge / Coil T emperature Sensor Assembly ................................................. 9007473015 2. Upper / Lower T emperature Sensor Assembly .
48 P .O. Box 1597, 500 Princeton Road, Johnson City , TN 37605 T echnical Support: 800-456-9805 • Parts: 800-433-2545 • Fax: 800-644-9306 www .americanwaterheater .
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