Lochinvar EnergyRite ER152 Service Manual
Pool and spa heater
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Also See for EnergyRite ER152:
- Installation & operation manual (52 pages) ,
- User's information manual (12 pages) ,
- Service manual (32 pages)
Table of Contents
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Service Manual
Models: ER152, ER202,
ER252, ER302, and ER402
This manual must only be used by a
WARNING
qualified heating installer / service
technician.
Read
all
instructions,
including this manual and the EnergyRite
Installation and Operation Manual,
before installing. Perform steps in the
order given.
Failure to comply could
result in severe personal injury, death, or
substantial property damage.
Save this manual for future reference.
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Table of Contents
Troubleshooting
Related Manuals for Lochinvar EnergyRite ER152
Summary of Contents for Lochinvar EnergyRite ER152
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Page 1: Service Manual
Service Manual Models: ER152, ER202, ER252, ER302, and ER402 This manual must only be used by a WARNING qualified heating installer / service technician. Read instructions, including this manual and the EnergyRite Installation and Operation Manual, before installing. Perform steps in the order given. -
Page 2: Table Of Contents
Service Manual Contents Contents ............2 Hazard definitions . -
Page 3: Please Read Before Proceeding
Service Manual Please read before proceeding Installer – Read all instructions, When calling or writing about the pool WARNING NOTICE including this manual heater – Please have the pool heater model EnergyRite Installation and Operation and serial number from the pool heater Manual, before installing. - Page 4 Service Manual Please read before proceeding When servicing pool heater – • To avoid electric shock, disconnect electrical supply before performing maintenance. • To avoid severe burns, allow the pool heater to cool before performing maintenance. Pool heater operation – •...
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Page 5: What Is In This Manual
Service Manual What is in this manual? Service Maintenance • Service and maintenance schedules The EnergyRite display • Inspect pool heater area and pool heater interior • Display panel readout, buttons and their functions • Check all piping for leaks Control module inputs •... -
Page 6: Service
Service Manual Service The EnergyRite display... - Page 7 Service Manual Service (continued) Control inputs...
- Page 8 Service Manual Service Control outputs...
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Page 9: General Operation
Service Manual Service (continued) General Operation How the pool heater operates The EnergyRite uses a copper finned tube heat exchanger and an electronic control module. The blower provides both primary and secondary air to the burners and forces the flue products out of the combustion chamber and into the vent system. -
Page 10: Access Setup Menu
Service Manual Service Access setup menu Table 1A Use this procedure to access the Setup Menu from the display panel The pool heater will continue to operate while the Setup Menu Switch - Select this option when the heater is used in is being accessed. -
Page 11: Access Service Menu
Service Manual Service (continued) Access service menu Table 1B Use this procedure to access the Service Menu from the display panel Service menu descriptions Outlet temperature This is the outlet temperature as measured by the outlet water The screens may also be scrolled backwards by pressing the sensor. - Page 12 Service Manual Service Keypad lockout Locking the keypad Unlocking the keypad The user has the ability to lock the keypad to prevent Press any button and hold for 5 seconds. The Display Screen will unauthorized adjustments. To lock the keypad, the user must show ENTER PASSCODE.
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Page 13: Maintenance
Service Manual Maintenance Maintenance and annual startup Table 2A Service and Maintenance Schedules Owner maintenance Service technician (see the EnergyRite User’s Information Manual for (see the following pages for instructions) instructions) General: • Address reported problems • Inspect interior; clean and vacuum if Daily necessary •... - Page 14 Service Manual Maintenance Follow the service and maintenance procedures given throughout this manual and in component literature WARNING shipped with the pool heater. Failure to perform the service and maintenance could result in damage to the pool heater or system. Failure to follow the directions in this manual and component literature could result in severe personal injury, death, or substantial property damage.
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Page 15: Burner Removal And Cleaning
Service Manual Maintenance (continued) Inspect ignition and flame sense electrodes 1. Remove the ignition and flame sense electrodes from the combustion chamber door. 2. Remove any deposits accumulated on the ignition/flame sense electrode using sandpaper. If the electrodes cannot be cleaned satisfactorily, replace with new ones. 3. - Page 16 Service Manual Maintenance Burner removal and cleaning procedure: The combustion chamber lining in this WARNING appliance contains ceramic fiber materials. a) Turn off main power to the pool heater. Ceramic fibers transform into cristobalite (crystalline silica) when exposed b) Turn off main manual gas shutoff to the pool heater. to temperatures above 2192°F (1200°C) c) Remove the front and top outer jacket panels.
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Page 17: Heat Exchanger Cleaning
Service Manual Maintenance (continued) Combustion Air Fan: The combustion air fan should Heat exchanger cleaning be checked every 6 months or each season of operation. Clean fan as required when installed in a dust or dirt contaminated location. Water Circulating Pump: Ensure that the filter system pump is providing adequate flow to the pool heater. -
Page 18: Combustion Air Shutter Adjustment
If adjustment is required, the fan air shutter may be Model Opening Pressure manually adjusted to a dimension specified for each model (see Table 2B). ER152 1 1/4" 1.4" Follow the steps below to adjust the fan air shutter if the pool ER202 1 1/4"... - Page 19 Service Manual Maintenance (continued) Gas train and controls Differential air pressure measurement The differential air pressure measurement can be checked with a slack tube manometer (FIG. 2-8). Disconnect the two tubes from the air pressure switch and connect one to each side of a manometer.
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Page 20: Facts About Water Chemistry
Service Manual Maintenance Facts about water chemistry We recommend using a four-way test kit to monitor the following levels (see Table 2D) to ensure proper operation of Factors which affect pool and spa water and, more importantly, your pool heater: the efficiency of your new pool/spa heater are: TABLE - 2D Proper Filtration... -
Page 21: Heat Exchanger Inspection
Service Manual Maintenance (continued) Heat exchanger inspection Caution - An equipment room operating under a negative pressure may experience a downdraft in the flue Tubes of a pool heater which is not firing. The cold outside air pulled down the flue may freeze a heat exchanger. This This pool heater is especially designed to operate without condition must be corrected to provide adequate freeze accumulation of scale in the heat exchanger, even in very... -
Page 22: Troubleshooting
(LP) with no flow (lockup) or with pool heater on. Never jumper (bypass) any device except for WARNING • Minimum: 4.0 inches w.c. (natural) on the ER152 - ER202 momentary testing as outlined in the models, 4.5 inches w.c. (natural) on the ER252 - ER302 Troubleshooting chart. -
Page 23: Checking Temperature Sensors
Service Manual Troubleshooting (continued) Checking temperature sensors The pool heater temperature sensors (inlet and outlet water) are both resistance type devices. The following table shows the correct values for the sensors at various temperatures. Use an ohmmeter to read the resistance of the sensor at a known temperature. -
Page 24: Troubleshooting Chart - Noisy System
Service Manual Troubleshooting Table 3C Troubleshooting Chart - Noisy System F F A A U U L L T T C C A A U U S S E E C C O O R R R R E E C C T T I I V V E E A A C C T T I I O O N N - Supply gas problem. -
Page 25: Troubleshooting Chart - Fault Messages
Service Manual Troubleshooting (continued) Table 3D Troubleshooting Chart - Fault Messages Displayed on Pool Heater Interface F F A A U U L L T T D D E E S S C C R R I I P P T T I I O O N N C C O O R R R R E E C C T T I I V V E E A A C C T T I I O O N N The field supplied safety wired into AUX •... - Page 26 Service Manual Troubleshooting Table 3D (continued from previous page) Troubleshooting Chart - Fault Messages Displayed on Pool Heater Interface F F A A U U L L T T D D E E S S C C R R I I P P T T I I O O N N C C O O R R R R E E C C T T I I V V E E A A C C T T I I O O N N outlet water...
- Page 27 Service Manual Troubleshooting (continued) Table 3D (continued from previous page) Troubleshooting Chart - Fault Messages Displayed on Pool Heater Interface F F A A U U L L T T D D E E S S C C R R I I P P T T I I O O N N C C O O R R R R E E C C T T I I V V E E A A C C T T I I O O N N The pool heater has a call for heat, but •...
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Page 28: Gas Manifold Pressure Adjustment Procedure
Service Manual Troubleshooting Gas manifold pressure adjustment Turn the power switch to the “ON” position. procedure Set the thermostat to call for heat. The fan will start. The gas valve is referenced to the fan While the combustion air fan is running for the prepurge NOTICE pressurized chamber by a hose connected cycle and the pressure in the front chamber stabilizes,... - Page 29 Service Manual Troubleshooting (continued) 19. Replace the cover screw on the regulator and turn the 16. The gas valve will open at the end of the trial for power switch to the “ON” position. Set the thermostat to ignition stage and remain open as the burners fire. call for heat.
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Page 30: Checking Gas Supply Pressure
If fuel supply is LP gas, shut off gas supply at the tank. On ER152 - ER202 models remove the 1/8" hex plug, located on the “inlet” side of the gas valve. An inlet pressure tapping is located on the top side of the valve body (see FIG. - Page 31 “inlet” side of the gas valve, replace the 1/8" hex plug in the tee (Models ER252 - ER402) or gas valve (Models ER152 - ER202) and tighten. 14. Turn on the gas supply at the manual valve, turn on the LP gas at the tank if required.
- Page 32 ERP-SER-Rev A CP-2M-3/07...