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InstallationInstallationInstallationInstallation,,,,

OperationOperationOperationOperation anananandddd

MaintenanceMaintenanceMaintenanceMaintenance

InstructionsInstructionsInstructionsInstructions

Important:Important:Important:Important: These instructions are for the use of specially trained personnel, experienced in the installation of this equipment and related systems. Some states require licensing of installation and service personnel. Unqualified individuals should not attempt to interpret these instructions or install this equipment. Read instructions carefully before unpacking, installing and operating unit.

Inspection:Inspection:Inspection:Inspection: This heat pump has been factory inspected; however, we recommend you check the carton and inspect the unit for concealed shipping damage. Note any transit damage on all copies of the bill of lading. Purchasers must file transit damage claims promptly with the freight company.

Handling:Handling:Handling:Handling: Always move the unit with care and in the horizontal position as shipped on pallet. Moving the heat pump on its side or dropping it may damage internal parts.

StorageStorageStorageStorage: Store in a clean, dry and protected area.

Location:Location:Location:Location: Install units indoors in an area that provides for maintenance access.

Installation

DefinitionDefinitionDefinitionDefinition Single refrigeration circuit, one unit section with fan outlet.

UnitUnitUnitUnit PlacementPlacementPlacementPlacement----HorizontalHorizontalHorizontalHorizontal See Figures 1 and 2

Mammoth’s heat pumps must be hung from the ceiling as shown in Figure 1. Mounting brackets, rubber grommets, bolts and washers are in place on the unit. The mounting brackets are designed to accept up to 3/8-inch threaded rods. A flat washer and two nuts (not supplied by Mammoth) should be used to mount the unit on the ceiling- attached threaded rods. When installed, the heat pump should be slightly pitched toward the condensate drain connection.

UnitUnitUnitUnit PlacementPlacementPlacementPlacement----VVVVerticalerticalerticalertical

See Figure 3 Mammoth’s heat pumps must be installed on a level surface. We recommend placing a carpet pad or other isolating material under the unit to prevent noise from transmitting to the building structure. If the unit is installed in a closet adjacent to the conditioned space, provide an insulated return air duct with at least one 90-degree bend. If a free return air system is used, position the filter-side of the unit as close as possible to the return air grille. Note: The unit is shipped from the factory with access to

the electrical box such that return air enters the unit from

the right side when facing the electric control box.

ModelModelModelModel NumberNumberNumberNumber NomeNomeNomeNomenclaturenclaturenclaturenclature

JJJJ 036036036036 HHHH HHHH CCCC

VVVVoltageoltageoltageoltage UnitUnitUnitUnit Model number Model number Model number Model number UnitUnitUnitUnit TTTTypeypeypeype TTTTemperatureemperatureemperatureemperature RangeRangeRangeRange DesignDesignDesignDesign SeriesSeriesSeriesSeries

D = 208-230/60/1 E = 265/60/1 F = 208-230/60/3 G = 460/60/3 J = 380/50/3 K = 575/60/3 L = 220/50/1

H = Horizontal Unit V = Vertical Unit

H = Standard Range L = Low Temperature

Mammoth concerned about the product quality and committed to a policy of continuous product improvements ,Please based on the rating label and the unit electrical wiring label, and thus reserves the right to change specifications and design without notice.

Figure 1: Horizontal mounting detail (L009-J072H)

SEE GROMMET DETAIL

(SEE FIGURE 2) Figure 2: Grommet detail Figure 3: Typical vertical installation detail

HANGER RODS （BY OTHERS）

MAX/MIN DIVERGE

WATER OUT FPT CONNECTION (SEE DIMENSIONAL DATA)

ACCESS TO COMPRESSOR

WATER COIL，REVERSING VALVE

WATER IN FPT CONNECTION (SEE DIMENSIONAL DATA)

7/8" O.D. COPPER

CONDENSATE DRAIN

ELECTRICAL ACCESS

FLANGE ON FILTER GUIDE FOR DUCT CONNECTION FILTER LEFT OR RIGHT SIDE REMOVAL。DUCTEO RETURN AIR LIFT AND PULL ON NON-DUC FLANGE ON FILTER GUIDE FOR DUCT CONNEC TION

7/8"OR1-3/32"HOLE FOR LINE VOLTAGE CONDUIT CONNECTION （SEE UNIT SPECIFICATION SHEET FOR FURTHER DETAILS）

NOTES 1）DOWN ACCESS FILTER GUIDES ARE ABLE AS OPTION 2）USE A BACKUP WRENCH ON FITTINGS WHEN MAKING WATER

CONNECTIONS 3）DO NOT SCREW DUCTWORK INTO THE HEAT PUMP CABINET USE

THE FLANGES PROVIDED ON FIL TER GUIDES AND BLOWER OPENING。

TOP PANEL

3/8”LOCKING NUT

THREADED ROD (BY OTHERS)

ADJUSTABLE SLOT IN HANGER BRACKET

WASHER

HANGER BRACKET

VIBRATION ISOLATION GROMMET WASHER(BY OTHERS) MUST COVER ENTIRE BOTTOM OF GROMMET RETAINING NUTS (BY OTHERS)

NOTES:NOTES:NOTES:NOTES: 1) AN INTERNAL BLOWER ACCESS

PANEL IS PROVIDED FOR SERVICING UNIT. FULL SERVICE PANELS ARE AVAILABLE ON ALL SIDES.

2) THE ELECTRICAL CONTROL PANEL IS LOCATED INSIDE THE UNIT.

3) DO NOT SCREW DUCTWORK INTO THE HEAT PUMP CABINET. USE THE FLANGES PROVIDED ON THE FILTER GUIDE AND THE BLOWER OPENING.

4) USE A BACK-UP WRENCH ON FITTINGS WHEN MAKING WATER CONNECTIONS.

5) THE ELECTRICAL BOX CAN BE MOUNTED ON THE OPPOSITE SIDE OF THE CABINET.

6) THE SIDE DUCT CONNECTOR CAN BE MOUNTED ON THE OPPOSITE SIDE TO PROVIDE FILTER FROM THE OTHER SIDE

TERMINAL STRIP

7/8 OR 1-3/32 DIA HOLE FOR FILED CONDUIT CONNECTION NECTION(SEE DIMENSIONAL DATA)

ELECTRICAL CONTROL

PANEL LOCATION

INTERNAL BLOWER PANEL LOCATION

WATER OUT FPT CONNECTION

(SEE DIMENSIONAL DATA)

WATER IN FPT CONNECTION (SEE DIMENSIONAL DATA)

SERVICE PANEL

7/8OD COPPER CONDENSATE DRAIN 1” P-TRAP INTERNALLY

(INSTALLED AT FACTORY)

SERVICE PANEL

DISCHARGE AIR DUCT CONNECTION

Figure 4φHorizontal mounting detail (J086~142H)

Figure 5: Grommet detail

Figure 6φInstallation space requirement (Dimensions in mm)

3

HOISTING FEET AT THE BOTTOM OF THE UNIT

VIBRATION ISOLATION GROMMET (SEE FIGURE 5)

THREADED ROD （BYOTHERS）

HANGER BRACKET

VIBRATION ISOLATION GROMMET

WASHER（BYOTHERS） MUST COVER ENTIRE BOTTOM OF GROMMET

RETAINING NUTS （BYOTHERS）

Filter length

MIN 500

MIN

500

Mai

ntae

nce

spac

e

Ret

urn

air

Space needed for filter take out

Air

disc

harg

e

Horizontal unit(top view)

Com

pres

sor a

cces

s pa

nel

electric access panel

Maintanence spaceMIN 600

Maintanence space

Fan

acce

ss p

anel

This drawing is for left hand piping unit

Filter lengthSpace needed for filter take out

(Only L009~J072 )

Water supply

Never operate the heat pump without water flowing through its water-to-refrigerant heat exchanger coil. This may cause severe damage to the unit. For proper water flow rates, refer to the unit catalog. CondensateCondensateCondensateCondensate DrainDrainDrainDrain See Figures 7 and 8 The condensate drain is set up for a 7/8-inch OD copper connection. The condensate pipe or hose installed must have a minimum 1-inch trap in the condensate line. All condensate piping must pitch away from the unit for proper drainage. Check local codes for compliance. Note:Note:Note:Note: All vertical units have an internal 1-inch trap built into the condensate line. All units require a field-installed condensate line. Figure 7: Condensate trap detail – vertical unit

5. After it’s been completely cleaned and drained, fill loop with water at an alkaline level of approximately pH 7.5.

6. Connect heat pump to the piping loop. 7. Make sure all entrained air is purged from loop and each unit

is operating at its specified flow rate.

Figure 8: Condensate trap detail – horizontal unit

Drain Pan

1" Min. Internal Trap (By Mammoth)

ClosedClosedClosedClosed----LoopLoopLoopLoop SystemsSystemsSystemsSystems Follow these steps to install closed-loop systems. 1. Leave unit unconnected or isolated using shutoff valves as building water loop is initially flushed. 2. Fill water system with 1 lb. trisodium phosphate for every 50 gallons of water. 3. Purge piping of trapped air; set supplemental heater to maintain 110 F; and, circulate solution for approximately 8 hours. 4. Drain system completely and repeat the entire flushing process, if necessary

OptionalOptionalOptionalOptional HoseHoseHoseHose KitsKitsKitsKits

WWWWaterateraterater Hoses:Hoses:Hoses:Hoses: 300mm and 600mm flexible water hoses are available for connections to the heat pump and adapters. Use two properly sized wrenches, one on the unit FPT fitting and one on the hexagonal fitting when connecting hoses. Do not use wrench on hose or on the sleeve that crimps the fitting onto the hose. Hoses must not be pulled taut, twisted or kinked. Connections should not be over tightened. Before pressurizing the water system, closely inspect hoses and fittings to be sure there are no cuts, abrasions, twists, or kinks. Make sure hoses will not be in contact with any sharp surface or edge while in use.

4

7/8" O.D. Condensate

1" Min. Internal Trap (By Others)

○R ○Y ○G ○O ○B TERMINAL

STRIP

○C

○R

○G ○O

○Sy

○1

○Y

○L

○Sc

○2

Electric supply

5

Diagram 1: Manual changeover thermostat

Diagram 2: Automatic changeover with night setback

Diagram 3: Automatic changeover thermostat with night setback/setup and override

ElectricalElectricalElectricalElectrical ServiceServiceServiceService andandandand FusingFusingFusingFusing

Warning: To avoid severe electrical shock, turn off power before

servicing controls. Unit must be installed in compliance with NEC and local codes. Route power wires through a properly sized disconnect switch. Consult the wiring diagrams in this manual and inside the cover of the electrical box to complete the connection. See nameplate for proper fuse sizing, minimum circuit ampacity and voltage requirements. If an auxiliary electrical heater is used, it must be installed with a power supply separate from the heat pump. ControlControlControlControl WWWWiringiringiringiring See Diagrams 1 through 4 All heat pump functions are controlled by remote thermostat and must be wired as shown, using approved copper wire.

Auxiliary Dry Contact (N.C.)

Common for Night Setback/Setup and Emergency Shutdown Input Signals (—)

Electric supply Diagram 5: Model L013～L030HLC -* wiring schematic Diagram 6: Model J036~J072HLC-* wiring schematic

J086-J142H: See the unit label for the detail electric diagram 6

SCHEMATIC DIAGRAM B

A

NOTES: 1. All units are factory-wired to customer order.

For 208 Volt/60 Hz or 200 Volt/50 Hz, use the black and red transformer leads. For 230 Volt/60 Hz or 220 Volt/50 Hz or 220/240 Volt/50 Hz units, use the black and orange transformer leads. For 265 Volt/60 Hz units, use the black and brown transformer leads.

2. Supply wiring must have copper conductors only.

3. Insulate all unused wire ends.

4. Interrupt 24 VAC power or remove the compressor input to reset the unit.

5. This unit has been factory-set with the jumpers in the indicated positions:

NRS TEST AUTO 24 VAC PILOTN

6. The optional “Water Temperature Switch” (WT) is also included in the optional “Extended Range Package”

(EP)and the optional “Low Temperature Package” (TL).

7. A 24 VAC signal is produced between this wire and terminal “R” when the N.O. contacts from the optional “Dirty Filter Switch” (DF) close.

8. The field connection to this optional “DF” lead is made through the perforated plastic grommet beneath the

terminal strip.

9. If the optional “Dirty Filter Switch” (DF) trips, it must be manually reset. 7

NORM MAN COM NORMAL

Model

Min. Straight Max. Duct Min. Duct

Disch. Length Width Height Width Height

006 23.5 11 7.3 9 5.9

009 23.5 11 7.3 9 5.9

013 23.5 11 7.3 9 5.9

016 25.9 8.9 11 7.2 9

019 25.9 8.9 11 7.2 9

024 25.9 8.9 11 7.2 9

030 27.5 9.9 11 8.1 9

036 31 11.3 12.4 9.2 10

043 31 11.3 12.4 9.2 10

052 31 11.3 12.4 9.2 10

062 31 11.3 12.4 9.2 10

072 34.8 14.2 12.4 11.6 10

086 23.5 20 14 17 15

100 23.5 20 14 17 15

120 23.5 20 16 17 15

142 25.9 20 17 17 15

8

DischargDischargDischargDischargeeee ConversioConversioConversioConversionnnn –––– HorizontaHorizontaHorizontaHorizontallll UnitUnitUnitUnit All horizontal unit sizes from 006H to 072H can be field-converted from straight discharge to side discharge. 1. Set the unit on a level surface.

2. Remove blower access panel.

3. Remove top panel.

4. Remove screws that secure the panel in which blower is mounted.

5. Re-install blower panel assembly for side discharge configuration. (Assembly will be flipped 180 degrees.) See unit specification sheet for dimensional information.

6. Re-install the top of the unit.

7. Re-install the blower access panel where the blower panel assembly was for straight-through discharge.

8. After first operation, check all fasteners for tightness.

Ductwork If a return duct is used, it may be fastened to the flanges on the filter guides; however, be sure to leave enough room for filter replacement. The flanges at the blower opening may be used for a flexible duct connection between the heat pump and the supply air duct. Be sure the blower wheel turns freely and is centered before making this connection. The discharge or supply air duct should be insulated and have at least one 90-degree bend prior to the first discharge grille. Flexible duct connections are recommended to reduce noise transmission from the unit through the duct. Heat pump life expectancy and efficiency depends on adequate airflow. See unit data sheet for nominal cfm information. Proper duct installation is essential for full airflow. We recommend the duct be installed according to AMCA 210 guidelines. (See Table 1.) There should be no turns or duct connections in the minimum discharge duct length. Otherwise, fan airflow could be greatly reduced.

Figure 7: Discharge conversion

Figure 8: Ductwork configuration

MAX/MIN DIVERGENCE OF TRANSITION = 7°

MIN STRAIGHT DISCHARGE LENGTH

MIN DUCT SIZE

MAX DUCT SIZE

UNIT

Table 1: Duct dimensions

All dimensions in inches.

6 3

7 5

4

2

9

Operation

StartupStartupStartupStartup

After installing, connecting ductwork and condensate lines and wiring, unit is ready for startup. Check all internal wire connections and connections to external control devices.

Make certain the thermostat system switch is in the “OFF” position and the fan switch is in the “AUTO” position. Also, the electric box cover and access panels should be mounted in place. You are now ready to turn on the power.

1. Turn the thermostat fan switch to the “ON” position. Unit blower should start.

Note:::: Unit may not start for 2-5 minutes due to random start or anti-short cycle relays.

2. Check the airflow and make sure no supply grilles or duct dampers are closed to restrict airflow.

3. Set the thermostat temperature setting to low and turn the systems switch to the heating mode.

4. Gradually increase the temperature to approximate room temperature until unit starts.

5. After operating the unit for 10 minutes, check the air temperature rise between supply and return airstreams. The rise should be at least 18 F.

6. Using a surface pyrometer or other device, check entering and leaving water temperatures. The recommended temperature drop between entering and leaving water may range from 5-9 F at 45 F EWT (Entering Water Temperature) or from 8-15 F at 70 F EWT.

Note: If any of the above conditions do not exist, one or more of the following problems exist: low airflow, low water flow or unit not performing properly.

7. Set the thermostat system switch to cooling mode and reduce temperature setting gradually until unit starts. After operating the unit for a few minutes, check if it is functioning properly and providing satisfactory cooling.

Note: Minimum dry bulb temperature drop between supply

and return airstreams should be about 16 F. A water

temperature rise of 12-25 F could be anticipated at relatively

low water flow rates.

Maintenance

AirAirAirAir FiltersFiltersFiltersFilters

Do not operate the heat pump without an air filter. Clean the filters at least once every three months and more frequently in dusty or unclean environments. Dirty filters will cause inefficient heat pump performance.

CompressorCompressorCompressorCompressor

Mammoth heat pumps have been designed with switches that protect the unit’s refrigerant system. They will automatically shut down the compressor if refrigerant pressure rises too high or drops too low.

Note: Some thermostats will indicate a compressor shut-down with a “reset” light.

If the compressor shuts down, turn the thermostat system switch off. Wait 10 minutes, then turn the switch back on and restart the unit. If the compressor shuts down again after only brief operation, a problem exists and a qualified service person must be called in. GeneralGeneralGeneralGeneral ServiceServiceServiceService

Any repair or service on the unit must be performed by qualified service personnel.

Options Operation CoolingCoolingCoolingCooling OnlyOnlyOnlyOnly –––– Allows for no compressor heating operation. The reversing valve is omitted.

ExtendedExtendedExtendedExtended RangeRangeRangeRange –––– Allows the unit to operate at lower entering water temperatures. Includes freezestat, insulated piping and insulated coaxial heat exchanger.

GeothermalGeothermalGeothermalGeothermal –––– Allows unit to operate at geothermal conditions. Includes freezestat, insulated piping and insulated coaxial heat exchanger as well as larger heat transfer surfaces.

DirtyDirtyDirtyDirty FilterFilterFilterFilter SwitchSwitchSwitchSwitch –––– Includes filter switch located downstream of filter which measures filter pressure drop. Switch differential pressure setting is adjustable. If the suction pressure rises to the set point, the unit sends the common leg of the 24-volt transformer out to a device (by others). Connection to this wire is made through the perforated plastic grommet beneath the terminal strip. See the wiring diagrams on the previous pages for wiring details.

TTTTerminalerminalerminalerminal JunctionJunctionJunctionJunction BoxBoxBoxBox –––– Includes an external sheet metal enclosure over the terminal strip for conduit connection of thermostat wiring.

75757575 VVVVAAAA TTTTransformerransformerransformerransformer –––– Replaces the standard 50 VA transformer and includes an integrated 4 amp resettable circuit breaker.

10

FreezestatFreezestatFreezestatFreezestat –––– Includes a leaving water temperature sensor wired to the microprocessor board. If the water drops below the set point, the unit will lockout. See the wiring diagrams on the previous pages for wiring details.

DDCDDCDDCDDC ControlsControlsControlsControls –––– Includes a hinged sheet metal enclosure on the electrical corner panel to house the DDC unit controller. The controller may be furnished by Johnson Controls, Honeywell, Invensys, Siebe, Delta, Andover, TAC, Wattmaster, Circon, Staefa; et al. Includes a reversing valve changeover relay.

ThirdThirdThirdThird ServiceServiceServiceService PortPortPortPort –––– Includes an extra Shrader tap located between the reversing valve and water-to-refrigerant coaxial heat exchanger to allow for measurement of head pressure in the cooling mode and suction pressure in the heating mode

for field-connection of a dual-acting water regulating valve. The tap is labeled and capped.

MotorizedMotorizedMotorizedMotorized VVVValvealvealvealve –––– includes a 2-position, spring return, normally open water valve in the entering water line. If the compressor is on, the valve is open. On loss of power, the valve will spring open. See the wiring diagrams on the previous pages for wiring details.

SoundSoundSoundSound PackagesPackagesPackagesPackages –––– Adds additional sound absorbing material to the unit casing.

CuproCuproCuproCupro----nickelnickelnickelnickel HeatHeatHeatHeat ExchangerExchangerExchangerExchanger –––– Replaces the standard copper inner tube of the water-to-refrigerant coaxial heat exchanger with cupro-nickel tube.

DownDownDownDown FilterFilterFilterFilter AccessAccessAccessAccess –––– Replaces both the standard top and bottom filter brackets on single circuit horizontal units with spring clips connected to two side brackets to hold the filter. Spread the clips and the filter is removable from the bottom. (This feature is standard for twin circuit horizontal units.)

TTTTopopopop FilterFilterFilterFilter AccessAccessAccessAccess –––– Replaces the standard top filter bracket on single circuit vertical units with an additional bracket on the side to allow the filter to be removed from the top.

ThermostatThermostatThermostatThermostat RemoteRemoteRemoteRemote SensorSensorSensorSensor –––– The specification of the controller on the WL2006 package

9 1 10 2 11 3 12 4 13 5 14 6 15 7 16 8

11

Microprocessor control For a complete description of the operation of the Microprocessor Control, see Operating Manual D-5. BasicBasicBasicBasic FeaturesFeaturesFeaturesFeatures FanFanFanFan SpeedSpeedSpeedSpeed Control:Control:Control:Control: Adjusts fan speed 100-80 percent on single-circuit direct-drive units.

DiagnosticDiagnosticDiagnosticDiagnostic LEDs:LEDs:LEDs:LEDs: Red = Fault in safety circuit. Yellow = Compressor on (not blinking). Green = Power on (24 VAC is present at board).

RandomRandomRandomRandom Start:Start:Start:Start: Prevents power surges by delaying unit startup by 5-35 seconds so that all units do not start at the same time. Occurs only when unit comes off of either shutdown, unoccupied or high/low voltage modes.

TERMINAL SIRIP

7 8 13 14

1 12 11

3 10 15 16

5 6 4 9 2

24 VAC (–) 24 VAC (+) FAN COMPRESSOR LOCKOUT ALARM REVERSING VALVE A.D. CONTACT (N.O.) A.D. CONTACT (COM) ※SEE ※NOTE UNOCCUPIED INPUT NSB / U SIGNAL EMERGENCY SHUTDOWN 2-HOUR OVERRIDE

DRY CONTACT ALARM OUTPUT

C R G

Y

L

O Sy

Sc 2 1 4

3 6 5 8 7

MICROPROCESSOR CCG SEE NOTE 5 CC ALARM

Testing ProcedureProcedureProcedureProcedure

The microprocessor control board should be tested while installed in a unit with a thermostat attached. Caution:Caution:Caution:Caution: When removing or jumping wires, be extremely

careful not to short the secondary side or come in contact with line

voltage.

The following procedure outlines how to test the microprocessor control board’s individual functions while installed in a unit. 1. Move shunt #1 to “test” position.

2. Apply voltage to the unit assuring the microprocessor control board is accessible for troubleshooting. 3. Take meter readings as indicated below.

FanFanFanFan Function:Function:Function:Function: On a call for fan operation . . . “C” to “G” terminals should read 24 volts. “L1” to “L2” line voltage should match incoming line voltage (208, 220, 230, 265, 380 or 460 volts).

FFFFanananan SpeedSpeedSpeedSpeed Control:Control:Control:Control: On a call for fan function . . “FAN” to “FAN COM” measured voltage should vary with adjustment of speed controller stem.

Compressor:Compressor:Compressor:Compressor: On a call for compressor function . . . “C” to “Y” terminals should read 24 volts. Contact terminals “SY” to “SC” should read 0 ohms. Terminals “SC” to #2 should now be open.

OverflowOverflowOverflowOverflow Detector:Detector:Detector:Detector: Jumper from “SENSOR” terminal to ground unit should lock out unit. “L” to “R” terminals should read 24 volts if “COM / 24 VAC” shunt is set to “COM”.

Lockout:Lockout:Lockout:Lockout: Pull either wire HPI, LPI or AUX1 while unit is running. Unit should lock out. “L” to “R” terminals should read 24 volts if “COM / 24 VAC” shunt is set to “COM”. Return shunt #1 to “RS” (random start) or “NO RS” depending on application. Remove any additional jumpers and return all wiring back to its original configuration.

CondensateCondensateCondensateCondensate Overflow:Overflow:Overflow:Overflow: A sensor in the drain pan electrically senses the presence of water. Switch is tied to the safety lockout circuit.

CompressorCompressorCompressorCompressor AntiAntiAntiAnti----shortshortshortshort Cycle:Cycle:Cycle:Cycle: A 5-minute time delay prevents compressor short cycling and extends motor life.

OptionalOptionalOptionalOptional FieldFieldFieldField AdjustmentsAdjustmentsAdjustmentsAdjustments NoNoNoNo RandomRandomRandomRandom Start:Start:Start:Start: A jumper allows elimination of the random start feature.

TTTTestestestest Mode:Mode:Mode:Mode: A jumper allows elimination of all time delays to simplify unit checkout operation by qualified service personnel only.

AutoAutoAutoAuto----Reset:Reset:Reset:Reset: A jumper allows auto-reset of the safety trip. The unit will automatically reset after 20 minutes.

FaultFaultFaultFault Output:Output:Output:Output: A terminal allows connection of an auto- changeover thermostat with an LED. Signal may be 24 VAC (+) or (–).

LED STATUS: Yellow “On” . . . . . . . . . . . Compressor On Green “Off” . . . . . . . . . . . No 24 VAC Green “On” . . . . . . . . . . . 24 VAC Present Green “1 Flash” . . . . . . . . . Low Voltage Green “2 Flash” . . . . . . . . . High Voltage Red “Off” . . . . . . . . . . . . . . No Faults (Normal) Red “On” . . . . . . . . . . . . . . Emergency Shutdown Red “1 Flash” . . . . . . . . . . . H.P. Fault Red “2” Flash” . . . . . . . . . . L.P. Fault Red “3 Flash” . . . . . . . . . . . W.T. Fault

12

TTTTripsripsripsrips andandandand PowerPowerPowerPower LossLossLossLoss ManualManualManualManual ModeModeModeMode

Check that Shunt #2 is on “MAN” and attach Shunt #1 to one of the following terminals to select power mode. (NOTE: The following descriptions assume that the 120 second Initial Power-up delay and the 5-35 second Random Start function (if applicable) have occurred.)

RSRSRSRS (Random(Random(Random(Random Start):Start):Start):Start): The unit should start immediately upon call following 2-second fan time delay, 4-second R.V. time delay and 6-second compressor time delay. (If the unit has been off for more than 5 minutes, the compressor will start on a call for cooling after a 6-second time delay.) There is a minimum 5- minute, 6-second time delay between cycles and a 2-minute, 6- second time delay after reset/restart.

Safety Circuit/Condensate Trip - All must be reset. (L.P. switch bypass of 120 seconds upon startup.)

Loss of Power - Upon resumption of power, the unit restarts following 120-second initial power-up time delay, random start function and 2-second fan time delay, 4-second R.V. time delay and 6-second compressor time delay.

NoNoNoNo RS:RS:RS:RS: The unit should start immediately upon call following 2- second fan time delay, 4-second R.V. time delay and 6-second compressor time delay. (If the unit has been off for more than 5 minutes, the compressor will start on a call for cooling after a 6- second time delay.) There is a minimum 5-minute, 6-second time delay between cycles and a 2-minute, 6-second time delay after reset/restart.

Safety Circuit/Condensate Trip - All must be reset. (L.P. switch bypass of 120 seconds upon startup.)

Loss of Power - Upon resumption of power, the unit restarts following 120-second initial power-up time delay and 2- second fan time delay, 4-second R.V. time delay and 6- second compressor time delay.

TTTTest:est:est:est: The unit should start immediately upon call following 2- second fan time delay, 4-second R.V. time delay and 6-second compressor time delay. Quick cycling may occur. Unit will restart immediately after reset following 2-second fan time delay, 4-second R.V. time delay and 6-second compressor time delay.

Safety Circuit/Condensate Trip - All must be reset. (L.P. switch bypass of 120 seconds upon startup.)

Loss of Power - Upon resumption of power, the unit restarts following 2-second fan time delay, 4-second R.V. time delay and 6-second compressor time delay.

AutoAutoAutoAuto ModeModeModeMode Check that Shunt #2 is on “AUTO” and attach Shunt #1 to one of the following terminals to select power mode. (NOTE: the following descriptions assume that the 120-second Initial Power- up delay and the 5-35 second Random Start function (if applicable) have occurred.)

RSRSRSRS (Random(Random(Random(Random Start):Start):Start):Start): The unit should start immediately upon call following 2-second fan time delay, 4-second R.V. time delay and 6-second compressor time delay. (If the unit has been off for more than 5 minutes, the compressor will start on a call for cooling after a 6-second time delay.) There is a minimum 5- minute, 6-second time delay between cycles. Safety Circuit/Condensate Trip - Automatic reset. Compressor restarts approximately 20 minutes after the lockout condition occurs. Loss of Power - Upon resumption of power, the unit restarts following 120-second initial power-up time delay, random start function and 2-second fan time delay, 4-second R.V. time delay and 6-second compressor time delay.

NoNoNoNo RS:RS:RS:RS: The unit should start immediately upon call following-2 second fan time delay, 4-second R.V. time delay and 6-second compressor time delay. (If the unit has been off for more than 5 minutes, the compressor will start on a call for cooling after a 6- second time delay.) There is a minimum 5-minute, 6-second time delay between cycles.

Safety Circuit/Condensate Trip - Automatic reset. Compressor restarts approximately 20 minutes after the lockout condition occurs.

Loss of Power - Upon resumption of power, the unit restarts following 120-second initial power-up time delay and 2- second fan time delay, 4-second R.V. time delay and 6- second compressor time delay.� TTTTest:est:est:est: The unit should start immediately upon call following 2- second fan time delay, 4-second R.V. time delay and 6-second compressor time delay. Quick cycling may occur.

Safety Circuit/Condensate Trip - Automatic reset. Compressor restarts approximately 20 minutes after the lockout condition occurs.

Loss of Power - Upon resumption of power, the unit restarts following 2-second fan time delay, 4-second R.V. time delay and 6-second compressor time delay.