Lochinvar 2072, 502 operation manual Determine unit location, Location of unit, Freeze protection

Page 9

1 Determine unit location

Location of unit

This unit meets the safe lighting performance criteria with the gas manifold and control assembly provided, as specified in the ANSI standards for gas-fired units and ANSI Z21.10.3/ CSA 4.3 - latest edition.

1.

Maintain all clearances from combustible construction

 

when locating appliance. See Clearances from Combustible

 

Construction, this page.

2.

Locate the appliance so that if water connections should

 

leak, water damage will not occur. When such locations

 

cannot be avoided, it is recommended that a suitable

 

drain pan, adequately drained, be installed under the unit.

 

The pan must not restrict combustion airflow. Under no

 

circumstances is the manufacturer to be held responsible

 

for water damage in connection with this unit, or any of its

 

components.

3.

The appliance must be installed so that the ignition

 

system components are protected from water (dripping,

 

spraying, rain, etc.,) during appliance operation and service

 

(circulator replacement, control replacement, etc.,).

4.

Appliances located in a residential garage and in adjacent

Installation & Operation Manual

Right Side

3"

(7.5 cm)

Rear

3"

(7.5 cm) (3" min. from any surface)*

Left Side

6" (15 cm) (24" (0.61 m) suggested for

 

service)

Front

Alcove* (30" (0.76 m) suggested for service)

Top

3"

(7.5 cm)

Flue

1"

(25.4 mm)

Hot Water Pipes 1"

(25.4 mm)

*An Alcove is a closet without a door. Thirty-six inches (36") to rear required for outdoor installation.

Note: No additional clearance is needed on the right side of the unit for the observation port. An observation port is located on both the right and left side of the unit.

Figure 1-1_Indoor clearances from combustible construction

spaces that open to the garage and are not part of the living

space of a dwelling unit must be installed so that all burners

and burner ignition devices have a minimum clearance of

not less than 18" (46 cm) above the floor. The appliance

must be located or protected so that it is not subject to

physical damage by a moving vehicle.

5. DO NOT install this appliance in any location where

gasoline or flammable vapors are likely to be present.

6. The appliance must be installed on a level floor.

7. Combustible floor installation:

a. Models 502 - 752 require an approved floor kit for

installation on combustible flooring (reference Table

1A).

b. Models 992 - 2072 are approved for installation

on combustible flooring without a floor kit. Note:

6"

MIN

LEFT

SIDE

3"

MIN TOP

30"

MIN

FRONT

3"

MIN

REAR

3"

MIN

RIGHT

SIDE

 

Concrete block over wood flooring is not considered

 

non-combustible.

8.

DO NOT install this appliance directly on carpeting or

 

other combustible material.

9.

Maintain required clearances from combustible surfaces,

 

reference the Indoor Clearances from Combustible

 

Construction Section, this page.

10.

For outdoor models, you must install an optional vent

 

cap. Instructions for mounting the vent cap are included

 

in the venting section of this manual. Do not install

 

outdoor models directly on the ground. You must install

 

the outdoor unit on a concrete, brick, block, or other

 

non-combustible pad. Outdoor models have additional

 

special location and clearance requirements. See Outdoor

 

Installation Venting, page 30. A wind proof cabinet

protects the unit from weather.

Indoor clearances from combustible construction

Maintain minimum specified clearances for adequate operation. Allow sufficient space for servicing pipe connections, pump and other auxiliary equipment, as well as the unit. See rating plate for specific service clearance requirements.

NOTICE

Clearances from combustible construction

are noted on the appliance rating plate.

 

TABLE - 1A

 

COMBUSTIBLE FLOOR KITS

Model

 

Kit Number

502

 

CFK3302

652

 

CFK3303

752

 

CFK3304

Freeze protection

Although these units are CSA International design-certified for outdoor installations, such installations are not recommended in areas where the danger of freezing exists. You must provide proper freeze protection for outdoor installations, units installed in unheated mechanical rooms or where temperatures may drop to the freezing point or lower. If freeze protection is not provided for the system, a low ambient temperature alarm is recommended for the mechanical room. Damage to the unit by freezing is non-warrantable.

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Contents Save this manual for future reference Installation & Operation Manual Models 502Contents Please read before proceeding Special instructionsRemoval of Combustion Chamber Lining or Base Panels Owner warning Safety informationCopper-fin2- How it works Copper-fin2- How it works Copper-fin2- How it works Ratings SpecificationsLocation of unit Determine unit locationIndoor clearances from combustible construction Freeze protectionLocation Outdoor pool heater installationHydronic systems anti-freeze Combustion and ventilation airMinimum Recommended Combustion AIR Supply to Equipment Room Outside Combustion Air Using Direct VentingCombustion air filter Exhaust fansIdentify your appliance’s vent system VentingCAT IV Flue pipe materials CAT I Negative pressure non-condensingDraft Venting Vent system optionsGeneral information Venting supportBarometric damper location Negative draft Conventional negative draft venting seeFlue outlet piping Common Venting SystemsMasonry chimney installations Vertical vent termination clearances and locationInspection of a masonry chimney 1Vent Termination from Peaked Roof 10 ft. or Less From Ridge Combustion air inlet piping Vertical DirectAire venting seeLength of air inlet pipe Sidewall air inletVertical Rooftop Air Inlet Combined air inlet pointsClearances Directaire Kits Model Horizontal KIT Vertical KIT Venting of flue productsSidewall with fan Sidewall venting seeSidewall venting termination Sidewall vent termination clearances and locationSidewall venting without fan Drain tee installationModels 502 Venting of flue products Horizontal DirectAire venting Powered Venting seeDirect venting see Flue outlet pipingVertical DV venting termination Horizontal DV venting termination Masonry chimney installationHorizontal Vent Termination Clearances and Location Combustion air inlet pipingAir inlet piping materials Connecting the air inlet pipe to the unitLength of air inlet pipe Sealing PVC, CPVC, ABS, dryer vent, and flex duct vent pipeVertical and sidewall combustion air inlet Multiple sidewall direct vent installationsHorizontal combustion air inlet clearances Vertical Combustion Air Inlet ClearancesOutdoor installation see Outdoor vent/air inlet locationOutdoor vent cap kit Gas connections Connecting to gas supplyGas connection Gas pressure testCombination gas valves Suggested GAS Pipe Size for Single Unit Installations ModelGas train and controls Venting of combination gas valvesChecking gas supply pressure GAS Piping Size ChartCirculating pump Water connections502 752 Models 992 1442 ModelsInitial set-up of maximum water flow Heat exchangerMinimum Pump Performance Auxiliary Mixed Water Limit Control3Heater Within 15 feet of Pool Piping 6Cascaded Heaters Beyond 15 feet of Pool Piping Pool Return Sensor Location MIN Primary Automatic bypass valve cover installation Pumped Automatic BypassOutdoor operation 3-way valve cover Pump purge delay Water flow switchPump purge pre-running delay Relief valveWay Automatic Bypass Valve Wiring Way automatic bypass valve wiringRemote Wire Connection Electrical connectionsPool heater operating control module Installation must comply withLine voltage connections AMP Draw DataPool return sensor 2-wire Louver proving switchPool supply/limit sensor 4-wire Low voltage connectionsWiring of the cascade Alarm contactsStartup Pre-start checklistStarting the filter system Check for gas leaksCheck vent and air piping Check thermostat circuitsPlacing the pool heater in operation Start the pool heater2Operating Instructions Set clock Configuration of the cascadeGeneral Operating informationPool heater temperature regulation DAY Switching on Sequence CascadeSequence of the cascade Sequence of operation Copper-fin2control module MENU/EXIT Display Screen ENTER/RESET UpdownInstaller Access modesUser To save parameters and exit programmingStatus display screens Sysrtn Open Unit Pump DelaySysrtn Shorted STG DemandMaintenance Maintenance and annual startup Service technicianOwner maintenance Address reported problems MaintenanceInspect appliance area Inspect appliance interiorCheck control settings Check all wiringCheck relief valve Inspect/replace hot surface igniter Ignition system checkoutInspect and clean burner Perform start-up and checks Check burner flameCheck flue gas passageways Oiled bearing circulators Review with ownerDigital Harness Connection diagramController LOW Voltage Ladder diagramRuntime Contacts 2BOARDCONNECTION Outdoor S5SENSOR POOL2ND Page
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2072, 502 specifications

Lochinvar 2072,502 is an innovative and robust water-heating solution tailored for residential and commercial applications. This model represents a significant advancement in energy efficiency and performance, catering to the dynamic heating requirements of modern buildings.

One of the standout features of Lochinvar 2072,502 is its advanced thermal efficiency. With an impressive AFUE (Annual Fuel Utilization Efficiency) rating, the unit delivers exceptional heat output while minimizing energy consumption. This not only reduces utility bills for homeowners and businesses but also supports sustainability efforts by decreasing carbon footprints.

The Lochinvar 2072,502 incorporates cutting-edge technologies that set it apart in the market. It is equipped with advanced control systems that allow users to precisely manage heating outputs, ensuring optimal comfort while conserving energy. The user-friendly digital display provides real-time data, allowing for efficient monitoring and control.

Another significant characteristic of the Lochinvar 2072,502 is its robust stainless-steel construction. This feature enhances the unit's durability and longevity, ensuring reliable performance even in challenging conditions. The high-quality materials also contribute to maintaining consistent water temperatures, which is essential for both residential and commercial heating needs.

The Lochinvar 2072,502 operates silently, making it ideal for installations in areas where noise is a concern. Its compact design allows for flexible installation options, fitting seamlessly into various spaces, whether it’s a utility room, basement, or outdoor area.

Furthermore, the unit supports multiple venting options, accommodating different building architectures and layouts. This versatility makes it an ideal choice for new builds and retrofitting existing systems.

Maintenance is streamlined with the Lochinvar 2072,502, as it features a self-diagnostics system that simplifies troubleshooting. Regular service check-ups are made easier with accessible components, allowing technicians to perform maintenance tasks efficiently.

In summary, the Lochinvar 2072,502 stands out for its high efficiency, advanced technology, durability, and flexible installation options. It is an ideal choice for those seeking a reliable and technologically advanced water-heating solution that meets the challenges of contemporary heating demands while promoting energy savings and environmental responsibility.
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