Amana Package Terminal Air Conditioner Service Instructions Manual

Amana Package Terminal Air Conditioner

PRODUCT IDENTIFICATION

SPECIFICATIONS

SPECIFICATIONS COOLING – PTC

SPECIFICATIONS COOLING – HEC

SPECIFICATIONS HEAT PUMP – PTH

SPECIFICATIONS HEAT PUMP – HEH

Unit without Electric Heater

SPECIFICATIONS HEAT PUMP HEATING DATA

ELECTRIC HEAT PERFORMANCE

PROPER INSTALLATION

OPERATING VOLTAGES

Use a voltmeter, to check the voltage at the outlet. The reading must be within the minimums and maximums shown below for the operating voltage.

• LCDI or AFCI Power Cords – Underwriters Laboratories and the National Electric Code (NEC) now require power cords that sense current leakage and can open the electrical circuit to the unit on units rated at 250 volts or less. If the unit does not operate, check the reset button located on or near the head of the power cord as part of the normal troubleshooting procedure.

PROPER INSTALLATION

WALL SLEEVE INSTALLATION

The wall sleeve must be installed before the air conditioner or heat pump chassis can be set in place. Read the instructions thoroughly before proceeding.

Pre-installation Considerations

Before proceeding with the sleeve installation, ensure the following guidelines for locating the wall opening and sleeve are met:

• The wall opening must be the correct size. See the figures below for wall sleeve Dimensions and mini-mum wall opening size.

Wall Sleeve Dimensions

Minimum Unit Clearances

• The wall sleeve will need to be installed with minimum clearances to the floor and adjacent walls. Minimum projections of the sleeve into and out of the room will also have to be met. See Minimum Unit Clearances and Minimum Interior and Exterior Projections Figures as well as the Minimum Clearances and Projections table for details.
• If installed in a concrete or masonry wall, a lintel must be provided in the wall opening for support. Do not use the wall sleeve as a lintel. See Framing with Lintel Figure for a typical lintel construction.
• When installed in the opening, the wall sleeve must be horizontally level from side to side and pitched (one-quarter bubble in the sight glass) to the outside. DO NOT INSTALL LEVEL (FRONT TO BACK) OR SLOPE THE WALL SLEEVE TOWARD THE ROOM.
• The installer must determine and supply the mounting bolts and/or screws to attach the wall sleeve to the sides of the wall opening. Make sure the wall opening is adequate for strong support.
• The installer must provide adequate sealing and insulation around the sleeve after it is installed (air and water-tight). See Block and Brick Veneer Installation Figure for one of many types of constructions.

PROPER INSTALLATION

Minimum Interior and Exterior Projections

1. If inside mounted then B = 1 1/2 inches (40 mm).
2. To achieve a flush fit between the hydronic front and the finished wall, Dimension “C” must be between 3” and 3 1/8”. If this dimension is more than 3 1/8” there will be a gap between the front and the wall. This gap could permit occupant access to hydronic lines or other dangerous parts.
3. This dimension can be from 0” to 3-1/4”, but cannot exceed 3-1/4”. If this dimension exceeds 3-1/4”, the skirt around the front will not reach the floor.

• For installations in walls deeper than 13-1/2 inches, special care is necessary to prevent problems with rain water, condensate drainage, and intake/discharge air. Under these circumstances, careful job site analysis and precautions are required. You must consult with your Sales Representative and receive approval before attempting such installations.
• If used, a 115-volt or 230/208-volt wall receptacle must be located within 58 inches of the lower right sleeve corner. Extension cords must not be used with the unit. See the note on the Wall Sleeve Dimensions Figure.

Minimum Wall Opening Dimensions

When 115-volt or 230/208-volt units are to be installed, the power supply may be either cord-connected or permanent wiring. Permanent wiring may be done through the accessory hardwire junction box, or the accessory subbase.

When 265-volt units are to be installed, the power supply must be permanent wiring. Permanent wiring may be done through the accessory hardwire junction box or the accessory subbase. An exposed cord connection on 265-volt units is not permitted. The subbase accessory includes leveling legs. If added wall sleeve support is required and the subbase is not to be used as an accessory, a leveling leg kit may be installed.

Drain Kit

An indoor/outdoor drain kit is available as an accessory item. When a drain kit is to be installed, do so before installing the wall sleeve in the wall. See the drain kit for the actual installation instructions.

Subbase, Leveling Legs, Main Duct, and Hydronic Heat Kits

Installation of these kits requires the drilling of mounting holes on both sides of the wall sleeve. The minimum required clearance distance between the wall sleeve and the wall is shown in the Minimum Clearances and Projections Table. If the distance between the wall sleeve and the wall will be at or near the minimum clearance distance, mount these kits on the sleeve before installing the sleeve on the wall. The kit installation instructions are included with the accessory kits.

PROPER INSTALLATION

Outside Enclosure Panel Removal

The sleeve stiffener must be taken out before the enclosure panel can be removed from the sleeve. The enclosure panel can be removed by folding the four flaps up and downward and manipulating the front ends of the top plus bottom towards the center. The entire panel can be pulled out diagonally from one side. Install the wall sleeve condenser air grille by using the screws and holes provided.

Installation (WS900B or WS900D)

After the wall opening is checked and approved for location, size, and clearances, complete the following to install the wall sleeve.

1. Remove the outside enclosure panel from the wall sleeve.
2. Slide the wall sleeve into the wall opening. Do not distort the cabinet shape to fit the wall opening. The unit chassis must fit snugly and uniformly into the wall sleeve.
3. Locate the sleeve within the range of minimum projections, as shown in Minimum Wall Opening Dimensions and Minimum Interior and Exterior Projections Figures, so both sides are at least the minimum projection from the wall.
4. Check the level of the wall sleeve. For proper drainage, the sleeve should be level from side to side and one-quarter bubble in the sight glass sloping to the outside.
5. Two holes will need to be drilled on both sides of the wall sleeve for mounting into the wall. Drill holes of proper size and in the proper location so the screws will engage into strong supporting members of the wall. DO NOT DRILL THROUGH THE BOTTOM OF THE SLEEVE. The following figure shows possible fastening methods.Attaching Wall Sleeve to Opening
6. Check the level of the wall sleeve and adjust if necessary.
7. Caulk or seal around the outside of the entire sleeve.
8. If the unit chassis will not be installed immediately, replace the enclosure panel on the outside opening of the sleeve. This will prevent weather damage to the building interior.
9. Recycle or dispose of packaging materials per local codes.

OUTDOOR GRILLE

An outside grille must be installed to direct airflow for proper unit operation and also protect the outdoor coil. The grille must be installed before installing the chassis. Refer to the Installation Instructions supplied with the outdoor grille ki for a complete description of the installation procedure.

This model requires either a Stamped Grille Kit (Model SGK -B) or an Architectural Grille Kit (Model AGK–B). When replacing an old chassis with an existing grille, please check with your sales representative to determine if the new chassis should be used with the old outdoor grille. An improved outdoor grille can decrease cooling or heating capacity, increase energy usage, and shorten compressor life.

FRONT REMOVAL

1. Grasp the cabinet front as shown.
2. Pull the bottom of the cabinet front away from the chassis until the retaining clips disengage.
3. Lift the cabinet front off the chassis. Reverse this procedure to reinstall the cabinet front.

CHASSIS INSTALLATION

1. Remove the cabinet front from the chassis as described in Front Removal.
2. Insert the chassis into the wall sleeve.
3. Slide the chassis into the wall sleeve until the chassis flanges contact the front edge of the wall sleeve.
4. Secure the chassis to the wall sleeve using three screws on each side of the chassis to ensure a proper seal between the chassis and the wall sleeve. The screws are supplied in a plastic bag which is attached to the power cord.

Front Mounting Holes – Two mounting holes are provided to give the owner the option of securing the front to the chassis. The mounting holes are located behind the intake grille. The owner must supply two 1/2 inch long #8 sheet metal screws per unit. The two screws must be removed before the front can be removed.

OPERATING CONTROLS

Users Controls

A 7-button touch keypad, located behind the control door, controls both temperature and operation mode. The keypads can be used alone or in combination.

Master Switch

The master switch disconnects power to all of the system components. When this switch is in the off position, the compressor, fan motor, reversing valve, and electric resistance heater will all be de-energized.

REMOTE/STANDARD

The remote/standard configuration is used to change the control of the unit from the standard onboard controls in the standard mode, to a remote wall-mounted thermostat in the remote mode. For remote control configuration settings, refer to Configuration Settings.

Fan Cycle Configuration

The fan cycle configuration sets the operational mode of the fan. In the ON position, the fan will run continuously whenever the unit is in heat or cool mode. In the AU position, the fan will cycle on and off with the compressor or electric heater when the unit is in the cool or heat mode.

PROPER INSTALLATION

Remote Control Inputs

The C, R, G, (GL for low fan speed or GH for high-speed fan on W2, Y/W1, and B terminals provide control inputs for a remote wall-mounted thermostat. See the following illustration.

Front Desk Control (IN1, IN2, COM)

The COM and (IN2 or IN1) terminals provide control inputs for a front desk switch. Shorting across the terminals will disable unit operation. The only control function that will remain active when these terminals are shorted is freeze protection. Any switch that will produce a short circuit across these two terminals can be used as a front desk switch.

The contact resistance of the switch, when closed, must be less than 200 ohms for the front desk feature to operate properly. Table 3 shows the maximum wire length and corresponding gauge size for the installation of a front desk switch. The following figure shows a wiring schematic for connecting the front desk switch to the unit. If the unit is configured for wired unrented setback energy management (see Configuration Settings section u8 and u9).

If IN* and COM are shorted, the unit will go into setback temperatures for cooling and heating as configured in c3 and c4 (see Configuration Settings). The unit operation will be disabled. “Fd” (see Diagnostic Codes) will appear on the
display. This allows the room to quickly recover to a comfortable temperature when the room is occupied.The following figure shows a wiring schematic for connecting the front desk switch to the unit.

Front Desk Switch Wiring Schematic

IMPORTANT NOTE: Do not apply 24VAC across these terminals. Applying 24VAC to these terminals will result in the failure of the control board. Shorting these terminals to any other terminals may also result in control board failure.

Temperature Limiter

The temperature limiting feature can reduce energy costs by controlling the maximum temperature available in heating and the minimum temperature available in cooling. While approximate temperature settings are shown below, actual room temperature will vary slightly.

Users Controls “Digital Touch Pad”

A seven-button touch keypad located behind the control door controls both temperature and operation modes. The keypads can be used alone or in combination.

Touch Pad With Display User Controls

Thermostat Setting

7 BUTTON TOUCH PAD WITH DISPLAY

Pressing the COOL thermostat control and the up or down arrows will provide a cooler room temperature, respectively. Pressing the HEAT thermostat control and the up or down arrow keys will provide a warmer room temperature.

Fan Speed

The fan speed touch key will deliver high, low, or auto fan speed to circulate room air. NOTE: The AUTO selection will not be available if a fan speed is selected without COOL or Heat selection.

To obtain access to the vent control

1. Remove the cabinet front (see Front Removal).
2. Remove the shipping screw (if installed) from the vent door.
3. Remove the label (if present) from over the vent conQ~trol lever on the left side of the chassis. Remove the vent door shipping screw.Vent Control Lever
4. Rotate the vent control lever to either open or close the damper.

HYDRONIC HEAT INSTALLATIONS

To avoid the risk of freezing the steam or water coil during prolonged shut down periods, the vent door must be left
closed when the outdoor temperature might fall below freezing or a power door kit must be installed.

AIR DISCHARGE GRILLE

The discharge grille can be adjusted to expel air at either a 16° or 56° angle.Discharge Grille Orientation Options

Use the following procedure to change the angle of the discharge air flow:

1. Remove the front cabinet (see Front Removal).
2. Position the front so that the backside is accessible.
   Discharge Air Flow
3. Remove the four (4) screws which secure the discharge air grille to the cabinet front.
4. Rotate the grille 180° end-for-end.
5. Reinstall the screws securing the discharge air grille to the cabinet front. Reinstall the cabinet front on the unit.

PREPARATION

1. Disconnect power to the unit by unplugging the power cord at the wall outlet or subbase, or disconnect power at the fuse box or circuit breaker.
2. If the cabinet front is screwed to the chassis, remove the 1/4” screw (or screws). See following figure.
3. Remove cabinet front from chassis by tilting the bottom of the front forward, lifting slightly up, and forward.
4. Mount the antenna as high up on the control panel as possible and as far to the right as possible in a location that will not interfere with the reinstallation of the PTAC polymer room front. Mark holes for screw location. Remove antenna housing and drill two 1/8” holes where marked. Some units may have the holes already pre- drilled in the correct location.
5. Remove antenna cable and route cable through opening in bottom of antenna housing.
6. Mount antenna housing with two screws as shown in figure. (NOTE: The Amana® brand logo should be in the lower right hand corner).
7. Plug wire harness from antenna into connector on the control board to the right of the master switch, being careful not to bend and/or break the wires when you connect the cable to the PTAC. Gently push the connector into place by pushing on the edge of the connector with your thumb nails. Avoid pushing directly on the wires.
8. Restore power to the PTAC unit.
9. Reinstall the polymer room cover.

WIRED POWER OPTION

1. If the option for wired power is used, the two thermo- stat wires (20 gauge minimum field supplied) can be connected to the thermostat.
2. Route wires through the opening in the mounting plate.
3. Loosen set screws on wired terminal and insert wires into the opening. Tighten set screws.
4. Connect wires at PTAC unit to terminal pins C and R. The wire harness kit PWHK01C is required for this connection.

WIRED MAGNET AND POWERED DOOR SENSOR OPTION

In cases where there is no top door frame, the sensor will need to be mounted on the wall next to the door. In these cases a wired magnet (a field supplied single pole single throw wired magnet) can be recessed or surface mounted and wired to the door sensor. The magnet will be a recessed style magnet with wired switch. The wires for the sensor (20 gauge field supplied) in the magnet will need to be run during construction.

Two wires will be run from the door sensor location to the PTAC unit; the remaining two wires will be run from the magnet location to the sensor location. The door sensor has four (4) terminal locations for wired power and/or wired magnets. The two (2) terminals closest to the binding button are for wired magnet and the top two (2) terminals are for wired power. Run the magnet wires through the opening in the center of the door sensor wall plate.

CONNECTING MAGNET

Using a pocket size straight blade screw driver push down on the terminal button to open the socket, insert wire into socket and release the terminal button. Insert one wire into each of the two (2) terminals. See image below for wire locations.

POWER CONNECTION

If using the wired powered option for the door sensor, using a pocket size straight blade screw driver, push down on the terminal button to open the socket. Insert wire into socket and release the terminal button. Insert one wire into each of the two (2) terminals. See following for wire locations. Connect the power wires from the door sensor to the PTAC on terminals C & R. The wire harness kit PWHK01C is required for this connection.

Viewed from the back with the power block in upper right corner.

Select one of the three slots that places the magnet 15/16”from the sensor mounting plate on the door frame. See following examples. The door frame and door usually will not align. Place holder on the door and select the slot that places the magnet as close as possible to the 15/16” depth from the back of the DD01* mounting plate.

The following figures show the magnet 15/16” from the sensor mounting plate in different slot positions (A, B & C).

CONFIGURATION SETTINGS

REFRIGERATION SEALED SYSTEM

SERVICING

HEH / PMH / PTH

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Amana Package Terminal Air Conditioner-FAQs