Lochinvar 402 - 2072 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, ANSI Z21.13/CSA 4.9 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

 

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.

 

 

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" (0.76m) 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

3"

 

 

3"

MIN

 

 

 

MIN

REAR

 

 

 

TOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6.

The appliance must be installed on a level floor.

7.

Combustible floor installation:

 

a. Models 402 - 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:

 

Concrete block over wood flooring is not considered

6"

MIN

LEFT SIDE

3"

MIN

RIGHT SIDE

30"

MIN FRONT

 

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

402

 

CFK3301

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.

9

 

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Contents Save this manual for future reference Models 402Contents Please read before proceeding Special instructionsRemoval of Combustion Chamber Lining or Base Panels Owner warning Safety informationCopper-fin II How it works Copper-fin II How it works Copper-fin II How it works Copper-fin =B=R Rating RatingsLocation of unit Determine unit locationIndoor clearances from combustible construction Freeze protectionLocation Outdoor boiler 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-condensingDirect Vent see General 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 402 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 pressure test Gas connectionCombination gas valves Gas train and controlsVenting of combination gas valves Checking gas supply pressure GAS Piping Size ChartWater connections Water flow switchInlet and outlet connections Heat exchangerRelief valve Heating boiler installationsPiping of the boiler system Water connections heating boilers onlyLow Temperature Return Water Systems Minimum boiler water temperaturesLow temperature bypass requirements LTV Valve Kits Model LTV Valve KITThree way valves in system Low system water volumeRadiant floor and snow melt heating systems Maximum Flow for Heating BoilerTypical heating boiler installations Temperature / pressure gaugeInstallation with a chilled water system DHW installationDiameter GPM4Primary/Secondary Piping of Multiple Boilers Floor Drain Heating Supply Loop 6Primary/Secondary Piping with Buffer Tank Electrical connections Installation must comply withBoiler operating control module AMP Draw DataEMS or remote thermostat connection Line voltage connectionsLow voltage connections DHW Domestic Hot Water thermostatAlarm contacts Louver proving switchLouver relay System supply sensor recommended use4Low Voltage Field Wiring Connections Wiring of the cascadeStart-up Check vent and air piping Check thermostat circuitsPlacing the boiler in operation Start the boiler1Lighting Instructions Configuration of the cascade Set DHW operationSet clock General Operating informationHow the appliance operates How the control module operatesProtection features Temperature controlBoiler temperature regulation Outdoor reset operation, if used boilers onlyCascade DHW, Night Setback, and Ramp Delay operation with cascade DAY Switching on SequenceSequence of the cascade Operation Display Sequence of operationCopper-fin II control module MENU/EXIT Display Screen ENTER/RESET UpdownInstaller Access modesUser To save parameters and exit programmingStatus display screens Inlet Open Inlet ***FInlet Shorted Syssup ***FDHW Pump Delay Unit Pump DelaySTG Demand FAN SpeedMIX VAL POS ** % Operation of the cascadeModel Temperature Rise F Temperature Rise AT Full Rate Fire 90 GPM FlowDomestic water heaters Maximum Water FlowWater chemistry 1Typical Water Heater Piping with Storage Tank 2Single Water Heater Piping with Two Storage Tanks 3Multiple Water Heater Piping with a Single Storage Tank 4Multiple Water Heater Piping with Multiple Storage Tanks Heat exchanger Pump operationMinimum Pump Performance Ft. HdThermostat adjustment procedure Minimum water temperatures domestic hot water useDomestic water temperatures Thermal expansion Optional relief valveCathodic protection Location of Cold Water Supply Piping ConnectionsMaintenance Maintenance and annual startup Service technicianOwner maintenance Maintenance Check control settings Check all wiringCheck relief valve Inspect/replace hot surface igniter Ignition system checkoutPerform start-up and checks Inspect and clean burnerCheck burner flame Check flue gas passagewaysInspect and clean the heat exchanger Review with ownerOiled bearing circulators Digital Harness Connection diagramSplay Ladder DiagramFlow Switch
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402 - 2072 specifications

The Lochinvar 402 - 2072 is a versatile and highly efficient boiler designed to meet the heating demands of modern residential and commercial applications. This model stands out due to its innovative technologies, advanced features, and a high level of reliability, making it an ideal choice for consumers looking for an enduring and economical heating solution.

One of the primary characteristics of the Lochinvar 402 - 2072 is its impressive energy efficiency. With an exceptional annual fuel utilization efficiency (AFUE) rating, this boiler ensures minimal energy waste, allowing homeowners and business operators to save significantly on their energy bills. The model incorporates advanced condensing technology that enables it to extract heat from the combustion gases, maximizing heat transfer and reducing emissions.

The Lochinvar 402 - 2072 is built with a robust stainless steel construction that enhances durability and resilience against corrosion and other environmental factors. This material not only prolongs the lifespan of the unit but also contributes to its outstanding thermal efficiency. Additionally, the boiler's compact design allows for flexible installation options, making it suitable for various spaces, including tight utility rooms and basements.

Equipped with a user-friendly control interface, the Lochinvar 402 - 2072 allows for easy monitoring and adjustment of settings. Its advanced digital display provides real-time data on system performance, ensuring the operator can maintain optimal performance and efficiency.

Another noteworthy feature is the unit's quiet operation. The design includes sound-dampening insulation and high-efficiency circulators, keeping noise to a minimum, which is an essential trait for both residential and commercial settings.

The Lochinvar 402 - 2072 is also designed with safety in mind. It incorporates multiple safety features including an automated vent damper, low water cutoff, and a comprehensive control system that monitors various operating conditions. This proactive approach to safety ensures that potential issues are identified and addressed before they become critical.

In conclusion, the Lochinvar 402 - 2072 boiler presents an exceptional combination of efficiency, durability, and user-friendly features. Its advanced condensing technology, stainless steel construction, and focus on safety make it a leading choice in the competitive boiler market, catering to the heating needs of a diverse range of applications while ensuring environmental responsibility. For those in search of a dependable and efficient heating solution, the Lochinvar 402 - 2072 is certainly worth considering.
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