Instruction/ maintenance manual of the product 402 Lochinvar
Go to page of 44
Copper-fin II/IIE Boiler and W ater Heater Service Manual Models: 402 - 2072 This manual must only be used by a qualified heating installer / service technician. Read all instructions, including this manual and the Installation and Operation Manual, before installing.
2 Hazard definitions The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk level s or to important information concerning the life of the product.
Copper-fin II/IIE Boiler and Water Heater Service Manual Please read before proceeding Installer – Read all instructions, including this manual and the Installation and Operation Manual, before installing. Perform steps in the order given. User – This manual is for use only by a qualified heating installer/service technician.
4 What is in this manual? Service The Copper-fin display • Display panel readout, buttons and their functions Control module inputs • Control module inputs and options Control module outputs • C.
1 Service 5 MENU/E X IT DISPLAY SCREEN ENT ER/RESET T X E N S U O I V E R P N W O D P U • Press to turn heater off or back on • Press to select a menu item • Press after parameter programming to.
1 Service 6 SMAR T SYSTEM CONTROL BOARD LOW VOLTAGE CONNECTI ON BOARD DHW THERMO STAT (OPTIONAL) ROOM T HER MOSTAT/ ZONE CO NTROL (OPTIONAL) SYSTEM SUPP LY/ ENABLE SENSOR (OPTIONAL) SYSTEM RETUR N SEN.
7 SMAR T SYSTEM CONTRO L BOARD LOW VOLTAGE CONNECTI ON BOARD THREE WAY V ALVE (OPTIONAL ON BOILER ) LOUVER RELA Y BUILDIN G MANAG EME NT SYSTEM RUN TIME CO NTACT S ALAR M CON TAC TS ALARM (OPTIONAL) U.
1 Service 8 General Operation How the appliance operates The Copper-fin uses a finned copper tube heat exchanger to transfer heat from the flue products to the water.
9 Sequence of operation Table 1A_ Sequence of Operation - Space Heating and DHW 1 Service (continued) OPERATION DISPLAY 1. The manual reset high limit must be closed before any action will take place.
1 Service 10 Sequence of operation Table 1A_ (continued from previous page) Sequence of Operation - Space Heating and DHW OPERATION DISPLAY 9. If the DHW thermostat remains on for more than 30 minutes.
11 Display panel menu access Table 1B_ Use this procedure to access menus from the display panel 1 Service (continued) Note: Not all menu listings shown above are available on water heaters.
1 Service 12 Display panel parameter access Cascade BMS Table 1C_ This is a typical example of accessing a parameter, shown for parameter K2, SH pump delay Copper-fin II/IIE Boiler and Water Heater Se.
13 Parameter table A - Boiler Operation Table 1D_ This table lists SMART SYSTEM control module parameters and where to access them for boiler operation ONLY 1 Service (continued) Menu Sub Item Descrip.
1 Service 14 Parameter table A - Boiler Operation (continued) Table 1D_ (continued from previous page) This table lists SMART SYSTEM control module parameters and where to access them for boiler opera.
Parameter table B - Water Heater Operation Table 1E_ This table lists SMART SYSTEM control module parameters and where to access them for water heater operation ONLY 1 Service (continued) Menu Sub Ite.
Parameter table B - Water Heater Operation (continued) Table 1E_ (continued from previous page) This table lists SMART SYSTEM control module parameters and where to access them for water heater operat.
17 Viewable and changeable control parameters General User code The User Code allows the user to access and change a limited number of control parameters. The access code can be changed by the user or the installer to a code of their choosing. The default code is 0704.
1 Service 18 SH Maximum setpoint (boiler only) The SH maximum setpoint sets the maximum water temperature setpoint that can be used for space heating. The user or installer will not be able to program the control with a higher SH setpoint. The temperature range of this parameter is 32°F (0°C) to 230°F (110°C).
1 Service (continued) 19 Copper-fin II/IIE Boiler and Water Heater Service Manual DHW/SH switching time (boiler only) The time that the SMART SYSTEM control services a DHW demand before returning to the SH demand is set by this parameter. The range of this parameter is 0 to 240 minutes.
1 Service 20 Maximum SH setpoint When the outdoor temperature drops to its minimum setting (F1) the water temperature setpoint will be at this value, if the SH setpoint is set higher (FIG. 1-1). The temperature range of this parameter is 32°F (0°C) to 248°F (120°C).
1 Service (continued) 21 Outdoor air shutdown differential The outdoor air shutdown differential parameter is the number of degrees below parameter F5 the outdoor air temperature must go before the unit will respond to a SH demand. The temperature range of this parameter is 0°F (0°C) to 90°F (50°C).
Control modes SH controlling sensor (boiler only) The SH controlling sensor parameter selects the sensor the control will use to regulate the boiler firing rate.
1 Service (continued) 23 Cascade Boiler address The boiler designated as the Leader needs to be programmed with address 0. All the Member boilers require addresses from 1 to 7, and the addresses must be different for each Member. The addresses can be in any order, regardless of the order in which the units are wired together.
24 Service Notification Service interval time (months) When the boiler control determines that a scheduled service is due based on days of installation, the boiler display will alternate the standard boiler display text with the message SERVICE DUE every 5 seconds.
2 Maintenance 25 Maintenance and annual startup Service technician (see the following pages for instructions) General: • Address reported problems • Inspect interior; clean and vacuum if necessary.
26 Follow the service and maintenance procedures given throughout this manual and in component literature shipped with the appliance. Failure to perform the service and maintenance could result in damage to the appliance or system.
2 Maintenance (continued) 27 Check relief valve 1. Inspect the relief valve and lift the lever to verify flow. Before operating any relief valve, ensure that it is piped with its discharge in a safe area to avoid severe scald potential. Read the Water Connections Section of the Installation and Operation Manual before proceeding further.
28 2 Maintenance Copper-fin II/IIE Boiler and Water Heater Service Manual Check all wiring 1. Inspect all wiring, making sure wires are in good condition and securely attached. Check control settings 1. Set the SMART SYSTEM control module display to Parameter Mode and check all settings.
29 2 Maintenance (continued) Copper-fin II/IIE Boiler and Water Heater Service Manual Access to the burners will require the following steps: 1. Turn off main electrical power to the appliance. 2. Turn off main manual gas shutoff to the appliance. 3. Remove the upper and lower outer front access doors.
2 Maintenance 30 Copper-fin II/IIE Boiler and Water Heater Service Manual Adjusting combustion air pressure The following is a recommended method for setting the combustion air pressure. The following pressure settings are for installations up to 4000 feet altitude.
2 Maintenance (continued) 31 Copper-fin II/IIE Boiler and Water Heater Service Manual PRESSUR E REGULA TO R ADJU STMENT (UNDER CAP SCREW ) INLET OUTLET GAS VALVE CONTRO L KNOB MANOME TER MANIFO LD PRE.
2 Maintenance Copper-fin II/IIE Boiler and Water Heater Service Manual Inspect and clean the heat exchanger 1. Turn off the main electrical power to the appliance. 2. Turn off the main manual gas shutoff to the appliance. 3. Remove the lower outer fron access door.
3 Troubleshooting 33 Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Always disconnect power to the appliance before servicing. Failure to comply could result in severe personal injury, death, or substantial property damage.
3 Troubleshooting 34 FAULT CAUSE CORRECTIVE ACTION No Display - No 120 VAC supplied to unit. • Check external line switch, fuse, or breaker. • Check position of ON/OFF switch. Turn switch to the ON position. • Check 120 VAC through the ON/OFF switch.
3 Troubleshooting (continued) 35 Temperature Resistance Temperature Resistance -50 490,813 20 46,218 -40 336,606 30 34,558 -30 234,196 40 26,099 -20 165,180 50 19,900 -10 118,018 60 15,311 0 85,362 70.
3 Troubleshooting 36 FAULT CAUSE CORRECTIVE ACTION Noisy Operation - Gas supply problem. • Re f er t o t h e Gas Connections Section o f th e Installation and Operation Manual for detailed information concerning the gas supply. - Gas/air mixture problem.
3 Troubleshooting (continued) 37 FAULT DESCRIPTION CORRECTIVE ACTION Gas Pressure SW (Will require a manual reset once the condition has been corrected.) - Either the optional manual reset low gas pressure switch or the optional manual reset high gas pressure switch tripped.
3 Troubleshooting 38 FAULT DESCRIPTION CORRECTIVE ACTION No Flame Ign (Will require a manual reset. Press the RESET button on the SMART SYSTEM display to reset.) The unit has failed to prove burner flame upon ignition. • Inspect igniter and associated wiring for damage and connection.
3 Troubleshooting (continued) 39 FAULT DESCRIPTION CORRECTIVE ACTION No Flam e Running (Will require a manual reset once the condition has been corrected. Press the RESET button on the SMART SYSTEM display to reset.) The unit was running and lost the flame signal.
40 FAULT DESCRIPTION CORRECTIVE ACTION Manual Reset High Limit (Will require a manual reset once condition has been corrected. Press the RESET button on the SMART SYSTEM display to reset.) The outlet water temperature has exceeded the setting of the adjustable high limit.
3 Troubleshooting (continued) 41 FAULT DESCRIPTION CORRECTIVE ACTION Louver Proving (Lockout will reset automatically after 5 minutes or may be reset immediately once condition has been corrected. Press the RESET button on the SMART SYSTEM display to reset.
3 Troubleshooting 42 FAULT DESCRIPTION CORRECTIVE ACTION Temp O/Shoot (Lockout will reset automatically after 5 minutes or may be reset immediately once condition has been corrected. Press the RESET button on the SMART SYSTEM display to reset.) The temperature rise across the heat exchanger has exceeded the set parameters for the appliance.
3 Troubleshooting (continued) 43 FAULT DESCRIPTION CORRECTIVE ACTION Service Blk While the unit is in Service Mode, the outlet temperature has exceeded 185°F (85°C). • Establish a heating load to remove heat from the system. • Verify that the system is full of water and that all air has been properly purged from the system.
Revision Notes: Revision A (ECO #C11226) initial release to reflect the new manual name and removal of the pool heater information. CFX-CHX-SER Rev A 9/12.
An important point after buying a device Lochinvar 402 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Lochinvar 402 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Lochinvar 402 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Lochinvar 402 you will learn all the available features of the product, as well as information on its operation. The information that you get Lochinvar 402 will certainly help you make a decision on the purchase.
If you already are a holder of Lochinvar 402, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Lochinvar 402.
However, one of the most important roles played by the user manual is to help in solving problems with Lochinvar 402. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Lochinvar 402 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
