Lochinvar 500, 90 service manual Hazard definitions, Danger, Notice, Contents

Contents

HAZARD DEFINITIONS	2
PLEASE READ BEFORE PROCEEDING	3-4
RATINGS	5-6
THE COPPER-FIN--HOW IT WORKS	7-9
1. DETERMINE UNIT LOCATION

Locate of Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Clearances from Combustible Construction . . . . . . . . . . .10 Combustion and Ventilation Air . . . . . . . . . . . . . . . . . . . . 11-13

2. VENTING

A Conventional Negative Draft Venting System . . . . . . . 14-15

Vertical Vent Termination Clearances . . . . . . . . . . . . . . . 16

Masonry Chimney Installation . . . . . . . . . . . . . . . . . . . . . 17

Inspection of a Masonry Chimney . . . . . . . . . . . . . . . 17

Automatic Vent Damper . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3. GAS CONNECTIONS

Gas Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Gas Pressure Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Gas Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Gas Manifold Pressure Adjustment Procedure . . . . . . . . 21

Checking Gas Supply Pressure . . . . . . . . . . . . . . . . . . . 22

Combination Gas Valves . . . . . . . . . . . . . . . . . . . . . . . . . 23

4. HYDRONIC PIPING

Relief Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Water Flow Switch (if equipped) . . . . . . . . . . . . . . . . . . . 24 Low Water Cutoff (if equipped) . . . . . . . . . . . . . . . . . . . . 25 Typical Heating Boiler Installations . . . . . . . . . . . . . . . . . 25-26 Piping of the Boiler System . . . . . . . . . . . . . . . . . . . . . . . 26 Water Connections Heating Boilers Only . . . . . . . . . . . . 27 Circulator Pump Requirements . . . . . . . . . . . . . . . . . . . . 27 Circulator Pump Specifications . . . . . . . . . . . . . . . . . . . 27 Circulator Pump Operation (Heating Boilers Only) . . . . 27 Primary/Secondary Boiler Piping . . . . . . . . . . . . . . . . . . . 28 Low Temperature Bypass Requirements . . . . . . . . . . . . . 28 Three Way Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Boiler Flow Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Figure 4-6_Prim. / Sec. Piping of a Single Boiler . . . 30 Figure 4-7_Prim. / Sec. Piping w/Low Temp. Bypass 31 Figure 4-8_Multiple Boilers Zoned w/Circulators . . . . 32

5. ELECTRICAL CONNECTIONS

Boiler Operating Temperature Control . . . . . . . . . . . . . . . 33 Room Thermostat or Remote Thermostat Connection . . 33 Power Venter Connection to Terminal Strip . . . . . . . . . . . 33 Pump Wiring for a Heating Boiler . . . . . . . . . . . . . . . . . . 34 Temperature Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . 34 Temperature Control Settings . . . . . . . . . . . . . . . . . . . . . 35 Maximum Set Point Determination . . . . . . . . . . . . . . . . . 35 Outdoor Air Reset Option . . . . . . . . . . . . . . . . . . . . . . . . 36 Additional Temperature Controls . . . . . . . . . . . . . . . . . . . 38-39 Blocked Vent and Flame Roll-Out / Flame Interlock Switch . 39

6. STARTUP

Initial Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Lighting Instructions for Standing Pilot Models (F1) . . . . 40-42 Safety Shutoff Test for Standing Pilot Ignition System . . 42 Lighting Instructions for Spark Ignition Pilot Models (F9/M9) . 43-44 Safety Shutoff Test for Spark Ignition Pilot System . . . . . . 44 Intermittent Pilot Spark Ignition System (F9/M9) . . . . . . . . . 44-45 Freeze Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Water Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7. DOMESTIC WATER HEATERS

Water Velocity Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Required Temperature Rise . . . . . . . . . . . . . . . . . . . . . . . 46

Water Chemistry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Softened Water Systems . . . . . . . . . . . . . . . . . . . . . . . . . 47

Pump Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Figure 7-1_Single Water Heater Piping w/Single Tank . . 48

Figure 7-2_Single Water Heater Piping w/Multiple Tanks 49

Figure 7-3_Multiple Water Heater Piping w/Single Tank . 50

Remote Sensor Installation . . . . . . . . . . . . . . . . . . . . . . . 51

Heat Exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Thermostat Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51-52

Optional Relief Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Thermal Expansion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Cathodic Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

8. MAINTENANCE
Maintenance and Annual Startup	54-60
9. TROUBLESHOOTING	61-62
10. DIAGRAMS	.63-66

Hazard definitions

The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or to important information concerning the life of the product.

￿DANGER

￿WARNING

￿CAUTION

CAUTION

DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in property damage.

NOTICE

NOTICE indicates special instructions on installation, operation, or maintenance that are important but not related to personal injury or property damage.

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