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Lochinvar Hot Water Generator - page 1
HOT W A TER GENERA T OR INST ALLA TION and OPERA TION MANUAL The information contained in this manual is intended for use b y qualified professional installers, or serv ice technicians. Consult y our local expert for proper installation or serv ice proc edures. W ARNING Sav e this manual for future referenc e. U nit show n with optional con ...
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Lochinvar Hot Water Generator - page 2
2 Hot W ater Generator Installation and Operation Manual Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Hazar d definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1. General infor mation . . . . . . . . . . . . . . . ...
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Lochinvar Hot Water Generator - page 3
Hot W ater Generator Installation Instructions 3 1 Gener al inf or mation This manual is intended to c ov er installation, operation, and maintenance pr ocedures for Lochin var’ s Hot W ater Generator Syst ems. Since each unit is built t o meet customer specifications, instructions may not be specific to ev er y system. If questions are not answe ...
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Lochinvar Hot Water Generator - page 4
4 Hot W ater Generator Installation and Operation Manual 1 Gener al inf or mation Optional control packages (see page 5) Steam to W ater -- Control packages include an isolation val ve, 2-way self-operated temperature regulator , inlet and outlet wye strainers, a float and thermostatic steam trap and all necessar y piping. Wa t e r t o Wa t e r -- ...
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Lochinvar Hot Water Generator - page 5
Hot W ater Generator Installation and Operation Manual 5 1 Gener al inf or mation (continued) Figure 3 _S team to Water Optional Control Package Figure 4 _W ater to W ater Optional Control Package W ARNING As with any piece of equipment that utilizes steam or boiler water under pr essure, as well as electricit y , the potential exists for s ...
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Lochinvar Hot Water Generator - page 6
2 Installa tion 6 Hot W ater Generator Installation and Operation Manual T r anspor ting and unpacking the unit Each Lochin var Hot W ater Generator is crated as necessary at the factor y . The crating is desig ned to pro vide protection for the unit during tr ansportation, and t o provide a safe means by which t o lift and move the unit with a for ...
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Lochinvar Hot Water Generator - page 7
2 Installa tion (continued) 7 Hot W ater Generator Installation and Operation Manual Examining the unit After the unit has been set in plac e and uncrated, it should be carefully examined t o assure that neither the main unit nor components ha ve been damaged during shipping. If any evidence of damage is detected that could affect the safe operatio ...
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Lochinvar Hot Water Generator - page 8
2 Installa tion 8 Hot W ater Generator Installation and Operation Manual Connecting the ener gy sour ce (Steam or boiler water) W ARNING Steam or boiler water present situations that can be very dangerous because of the high temperatures and pressures. U se common sense and follo w all accept ed and recommended pr ocedures when performing i ...
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Lochinvar Hot Water Generator - page 9
2 Installa tion (continued) 9 Hot W ater Generator Installation and Operation Manual W ARNING Do not install a valve between the water heater r elief valve and the vent. Doing so could cause serious injur y or death if the pressure relief valve released and the manual val ve was closed. This would cause e xc essive buildup of pressur e in t ...
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Lochinvar Hot Water Generator - page 10
10 3 Oper a tion Hot W ater Generator Installation and Operation Manual After all installation pr ocedures ha ve been c ompleted, and all water , energy source joints, and power connections ha ve been double checked, the unit is read y for operation. As a precaution, it is strongly suggested that the following Star tup and Shutdo wn procedures be f ...
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Lochinvar Hot Water Generator - page 11
11 4 Inspection Hot W ater Generator Installation and Operation Manual The following table summarizes the recommended time intervals for inspections of the wat er heater , c omponents, inlet and outlet water , energ y source lines (st eam or boiler water), and power co nnections. R R E E C C O O M M M M E E N N D D E E D D I I N N S S P P E E C C T ...
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Lochinvar Hot Water Generator - page 12
12 5 T roubleshooting Hot W ater Generator Installation and Operation Manual S S Y Y M M P P T T O O M M P P R R O O B B A A B B L L E E 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 Wa ter heater does not maintain the requir ed temperature at the rated capacity . • The thermometer is not correctly sensing th ...
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Lochinvar Hot Water Generator - page 13
13 5 T roubleshooting (continued) Hot W ater Generator Installation and Operation Manual S S Y Y M M P P T T O O M M P P R R O O B B A A B B L L E E 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 Outlet temperature fluctuates widely . • Inlet energy source pressure is too low or boiler water temperature is too ...
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Lochinvar Hot Water Generator - page 14
14 5 T roubleshooting Hot W ater Generator Installation and Operation Manual S S Y Y M M P P T T O O M M P P R R O O B B A A B B L L E E 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 Pressur e relief valv e “pops”. • The primary / inlet temperature control valve is not closing properly . • The secondary ...
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Lochinvar Hot Water Generator - page 15
6 Maintenance Hot W ater Generator Installation and Operation Manual Stora ge tank maintenance A new tank installation should hav e a regular inspection program set up. The first inspection should be within the first three months of oper ation. Once the tendency to ac cumulate sediment has been established, the inspection program can be modified to ...
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Lochinvar Hot Water Generator - page 16
6 Maintenance 16 Hot W ater Generator Installation and Operation Manual 10. Install a new gasket on the man way or hand hole t o prevent an y possible leaks. Tighten the gask et properly t o prevent leaks. Caution: Over tightening can result in cutting the gasket and allo wing a water leak to occur . 11. Replace the jack et co ver ov er the manwa y ...
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Lochinvar Hot Water Generator - page 17
6 Maintenance (continued) Hot W ater Generator Installation and Operation Manual Component(s) replacement Circulating pump - inspection and replacement Lochin var Hot W ater Generators can be equipped with a circulating pump to assist in the ev en heating of the water . If the unit is equipped with a circulating pump, the following proc edure shoul ...
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Lochinvar Hot Water Generator - page 18
6 Maintenance 18 Hot W ater Generator Installation and Operation Manual P ower connections - rewiring If any of the power c onnections must be rewired at the circulating pump or electrically activated controls, fol lo w the steps listed belo w . W ARNING The combination of elect ricity and water can pose a very dangerous situation. T urn of ...
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Lochinvar Hot Water Generator - page 19
6 Maintenance (continued) Hot W ater Generator Installation and Operation Manual T emperature/pr essure gauge (tank) (optional) - replacement If the temperature/pressure gauge for the wat er tank is not functioning correctly and must be r eplaced, follow the procedur e outlined below . W ARNING The combination of elect ricity and water can ...
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Lochinvar Hot Water Generator - page 20
6 Maintenance 20 Hot W ater Generator Installation and Operation Manual T emperature contr ol valv e (optional) - inspection and replacement The temperature c ontrol valv e is installed adjacent to the tube bundle. The manufacturer’ s documentation included w ith the unit gives specifics for operation and maintenanc e of the control val ve. The C ...
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Lochinvar Hot Water Generator - page 21
6 Maintenance (continued) Hot W ater Generator Installation and Operation Manual 6. Re move an y sediment that is present in the strainers. If they cannot be satisfactorily cleaned, r eplace with new strainers. 7. Place the strainers back on-line in the system. 8. Rec onnect the inlet and outlet lines to each strainer . Follo w recommendations c on ...
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Lochinvar Hot Water Generator - page 22
22 Hot W ater Generator Installation and Operation Manual 7 Notes ...
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Lochinvar Hot Water Generator - page 23
23 7 Notes Hot W ater Generator Installation and Operation Manual ...
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Lochinvar Hot Water Generator - page 24
HWG-i&o-01 CP-2M-12/05 ...
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