Friedrich 920-087-04 (3-05) User Manual

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INSTALLATION &

OPERATION GUIDE

PTAC

PACKAGEDTERMINAL AIRCONDITIONERS &HEATPUMPS

Standard Control

Remote Thermostat

Seacoast Protected

920-087-04(3-05)

920-087-04(3-05)

TableofContents

 

Unit Components ...............................................................................................................................................................................................

2

Model Number Code..........................................................................................................................................................................................

3

Installation Recommendations..........................................................................................................................................................................

4

Friedrich Digital Control Features .................................................................................................................................................................

5-6

Drain Kit Installation ........................................................................................................................................................................................

7-8

Wall Sleeve Installation.................................................................................................................................................................................

9-10

Deep Wall Installation ......................................................................................................................................................................................

11

Standard Grille Installation ..............................................................................................................................................................................

12

Electrical Rating Tables ...................................................................................................................................................................................

13

Power Cord Information...................................................................................................................................................................................

13

Installation Checklist ........................................................................................................................................................................................

14

Chassis Installation .....................................................................................................................................................................................

14-15

Digital Control User Input Configuration.........................................................................................................................................................

16

Operation..........................................................................................................................................................................................................

17

Remote Thermostat and Low Voltage Control Connections.........................................................................................................................

18

Desk Control Terminals ...................................................................................................................................................................................

19

Auxiliary Fan Control........................................................................................................................................................................................

19

Fresh Air Vent Control......................................................................................................................................................................................

19

Air Discharge Grille..........................................................................................................................................................................................

19

Start-upChecklist.............................................................................................................................................................................................

20

Appendix A: Electrical Wiring for 265 V Models............................................................................................................................................

21

Routine Maintenance.......................................................................................................................................................................................

22

Basic Troubleshooting Techniques .................................................................................................................................................................

23

Digital Control Diagnostics and Test Mode ....................................................................................................................................................

24

Accessories................................................................................................................................................................................................

25-26

Warranty...........................................................................................................................................................................................................

27

TypicalUnitComponents

 

Outdoor grille

Wall sleeve

Chassis

Front cover

2

920-087-04(3-05)

Thank you for your decision to purchase the newly designed Friedrich Packaged Terminal Air Conditioner (PTAC). We are confident that you will find this unit a quiet and efficient example of Friedrich reliability.

This Installation and Operation Manual has been designed to insure maximum satisfaction in the performance of your unit. For years of trouble-freeservice, please follow the installation instructions closely. We cannot overemphasize the importance of proper installation. We have added new information to the basic instructions to help you achieve success.

Remember, proper installation is not difficult but it is essential.

Model Number Code

PD H 07 K 3 S A 1

Series

PD = Friedrich Digital PTAC

System

 

X

=

Accessory

E

=

Cooling with or without

 

 

electric heat

H

=

Heat Pump with Auxiliary Heat

 

 

 

Nominal Cooling Capacity

07 = 7,000 Btuh

09 = 9,000 Btuh

12 = 12,000 Btuh

15 = 15,000 Btuh

Engineering Digit

Design Series

Options

S = Standard

C = Seacoast Protection

Nominal Heater Size

(@ 230V or 265V)

3

= 3.4 KW

0

= No Heater

2

= 2.5 KW

5

= 5.0 KW*

* 5.0 kw only available on 12000 and 15000 Btu/h models

Voltage

K = 230/208V - 1 Ph. - 60 Hz.

R = 265V - 1 Ph. - 60 Hz.

Please read this manual thoroughly prior to equipment installation or operation. It is the installer’s responsibility to properly apply and install the equipment. Installation must be in conformance with the NFPA 70-2002National Electric Code or current edition and Uniform Mechanical Code current edition and applicable local or national codes.

3

920-087-04(3-05)

PTAC InstallationRecommendations

ForproperPTACunitperformanceandmaximumoperatinglifepleaserefertotheminimuminstallationclearancesbelow:

Figure1

PTAC units should be installed no closer than 12" apart when two units are side by side. If three of more PTAC units are to operate next to one another allow a minimum of 36" between units. Also, a vertical clearance of 60" should be maintained between units installed.

 

THREE OR MORE PTACs

VIEW: OUTSIDE

ADJACENT 36" MINIMUM

BUILDING ELEVATION

 

TYP.

 

WINDOW

 

36"

 

60"

TWO ADJACENT

PTACs 12" MINIMUM

 

60" VERTICAL MIMUMUM

 

BETWEEN PTACs

GROUND FLOOR PTACs

 

 

6" MINIMUM FROM GRADE

12"

6"

Figure2

ForPTACsonthegroundfloororanytimeobstructionsarepresent,usethefollowingguidelines:

For minor obstructions

 

 

 

 

 

 

such as lamp poles

 

 

 

 

 

 

or small shrubbery a

 

 

 

 

 

 

clearance of 12" from the

 

TYP. BUILDING ( PLAN VIEW )

 

 

outdoor louver should be

 

 

 

 

 

 

maintained.

 

36"

 

36"

 

For major obstructions

PTAC

 

PTAC

 

PTAC

 

such as a solid fence, wall

 

 

 

or other heat rejecting

 

 

12"

 

 

 

device like a condensing

 

 

 

 

 

12" MINIMUM, MINOR

 

 

SHRUB

 

 

unit, a minimum distance

POLE

36"

 

 

OBSTRUCTIONS

 

 

 

of 36" should be kept.

36" MIMUMUM, MAJOR

 

 

 

 

 

 

OBSTRUCTIONS

 

FENCE OR WALL

 

 

 

 

 

 

 

 

 

CONDENSING UNIT

 

 

The above suggestions are for reference only and do not represent all possible installations. Please contact the factory for information regarding affects of other installation arrangements. By following these simple recommendations you can be confident that your Friedrich PTAC will provide years of worry free operation.

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920-087-04(3-05)

Friedrich Digital Control Features

The new Friedrich digital PTAC has state of the art features to improve guest comfort, indoor air quality and conserve energy. Through the use of specifically designed control software for the PTAC industry Friedrich has accomplished what other Manufacturer’s have only attempted – a quiet, dependable, affordable and easy to use PTAC.

Below is a list of standard features on every Friedrich PTAC and their benefit to the owner.

DigitalTemperature

By digitally monitoring desired room temperature the room is controlled more precisely than conventional systems. The large, easy

Readout

to read LED display can show either set-pointor actual room temperature as selected by owner.

 

 

One-TouchOperation

When the unit is powered off the unit can be returned directly to heating or cooling mode by pressing the ‘Heat’ or ‘Cool’ buttons

without the confusing power up sequence of some controls. One-touchcontrol takes guesswork out of unit control delivering a more

 

enjoyable experience and eliminating front-deskcalls.

 

 

IndividualModeand

By having separate control buttons and indicators for both fan and mode settings the Friedrich digital control eliminates the confu-

FanControlButtons

sion of previous digital PTACs. The accurate temperature setting provides greater guest comfort than other systems.

 

 

QuietStart/Stop

The fan start and stop delays prevent abrupt changes in room acoustics due to the compressor energizing or stopping immediately.

Upon call for cooling or heating the unit fan will run for five seconds prior to energizing the compressor. Also, the fan off delay allows

FanDelay

for “free cooling” by utilizing the already cool indoor coil to its maximum capacity by running for 30 seconds after the compressor.

 

 

 

RemoteThermostat

Some applications require the use of a wall mounted thermostat. All new Friedrich PTACs may be switched from unit control to

Operation

remote thermostat control easily without the need to order a special model or accessory kit.

 

 

WirelessRemote

Guests can adjust the temperature and mode of the unit through the use of an optional hand held wireless remote, improving guest

ControlReady

comfort and relaxation.

 

 

InternalDiagnostic

The new Friedrich digital PTAC features a self diagnostic program that can alert maintenance to component failures or operating

Program

problems. The internal diagnostic program saves properties valuable time when diagnosing running problems.

 

 

ServiceErrorCode

The self diagnosis program will also store error codes in memory if certain conditions occur and correct themselves such as ex-

treme high or low operating conditions or activation of the room freeze protection feature. Storing error codes can help properties

Storage

determine if the unit faced obscure conditions or if an error occurred and corrected itself.

 

 

 

ConstantComfort

The on-boardprocessor monitors time between demand cycles (heat or cool) and will cycle the fan every 9 minutes to sample the

room condition and determine if the desired conditions are met. This allows the room to have similar benefits to a remote mounted

RoomMonitoring

stat without the complication or cost of a wall mounted thermostat.

 

 

 

ElectronicTemperature

By limiting the operating range the property can save energy by eliminating “max cool” or “max heat” situations common with older

Limiting

uncontrolled systems. The new electronic control allows owners to set operating ranges for both heating and cooling independently

of one another.

 

 

 

RoomFreeze

When the PTAC senses that the indoor room temperature has fallen to 40°F the unit will cycle on high fan and the electric strip heat

to raise the room temperature to 46°F then cycle off again. This feature works regardless of the mode selected and can be turned

Protection

off. The control will also store the Room Freeze cycle in the service code memory for retrieval at a later date. This feature ensures

 

that unoccupied rooms do not reach freezing levels where damage can occur to plumbing and fixtures.

 

 

RandomCompressor

Multiple compressors starting at once can often cause electrical overloads and premature unit failure. The random restart delay

eliminates multiple units from starting at once following a power outage or initial power up. The compressor delay will range from

Restart

180 to 240 seconds.

 

 

 

DigitalDefrost

The new Friedrich PTAC uses a digital thermostat to accurately monitor the outdoor coil conditions to allow the heat pump to run

whenever conditions are correct. Running the PTAC in heat pump mode save energy and reduces operating costs. The digital

Thermostat

thermostat allows maximization of heat pump run time.

 

 

 

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920-087-04(3-05)

Friedrich Digital Control Features Continued

InstantHeat

Heat pump models will automatically run the electric heater to quickly bring the room up to temperature when initially energized,

then return to heat pump mode. This ensures that the room is brought up to temperature quickly without the usual delay associ-

HeatPumpMode

ated with heat pump units.

 

 

 

EvenHeatMonitoring

The digital control monitors indoor conditions to ensure that the room temperature is within five degrees of the setpoint. If neces-

sary the unit will cycle the electric heat to maintain the temperature. This feature ensures guest comfort by delivering the heating

 

benefits of an electric heater while maintaining the efficiency benefits of a heat pump.

 

 

 

The owner may choose between fan cycling or fan continuous mode based on property preference. (Note: Even heat monitor-

FanCycleControl

ing and quiet start/stop fan delay only operate in fan cycle mode) Fan continuous mode is used to keep constant airflow circula-

tion in the room during all times the unit is ‘ON’. Fan cycle will conserve energy by only operating the fan while the compressor

 

 

or electric heater is operating.

 

 

EmergencyHeatOverride

In the event of a compressor failure in heat pump mode the compressor may be locked out to provide heat through the resis-

tance heater. This feature ensures that even in the unlikely event of a compressor failure the room temperature can be main-

 

tained until the compressor can be serviced.

 

 

DeskControlReady

All Friedrich digital PTACs have low voltage terminals ready to connect a desk control energy management system. Control-

ling the unit from a remote location like the front desk can reduce energy usage and requires no additional accessories at the

 

PTAC.

 

 

IndoorCoilFrostSensor

The frost sensor protects the compressor from damage in the event that airflow is reduced or low outdoor temperatures cause

the indoor coil to freeze. When the indoor coil reaches 30°F the compressor is diabled and the fan continues to operate based

 

on demand. Once the coil temperature returns to 45°F the compressor returns to operation.

 

 

Ultra-QuietAirSystem

The new Friedrich PD series units feature a indoor fan system design that reduces sound levels without lowering airflow and

preventing proper air circulation.

 

 

 

HighEfficiency

The Friedrich PTAC benefits quality components and extensive development to ensure a quiet, efficient and dependable unit.

 

 

SingleMotor

Friedrich’s single-motordesign allows for enhanced outdoor airflow and simplifies the unit design without the need for redun-

dant components.

 

 

 

RotaryCompressor

High efficiency rotary compressors are used on all Friedrich PTACs to maximize durability and efficiency.

 

 

AuxiliaryFanReady

The Friedrich PTAC features a 24V AC terminal for connection to an auxiliary fan that may be used to transfer air to adjoining

rooms. Auxiliary fans can provide conditioning to multiple rooms without the requirement of multiple PTAC units.

 

 

 

AluminumEndplates

All Friedrich PTACs are built with .04" endplates made from aluminum as opposed to steel. The endplates are typically the most

susceptible area for corrosion and aluminum is far more resistant to corrosion than even coated steel.

 

 

 

SeacoastProtection

Optional Seacoast protection is available to protect the outdoor coil from harsh environments. The Friedrich Seacoast process

includes dipping the entire outdoor coil in a 7-stepcoating process that provides superior protection to only coating the fins of

 

the coil.

 

 

TopMountedAnti-

All Friedrich PTAC return air filters feature an anti-microbialelement that has proven to prevent mold and bacterial growth in

laboratory testing. PDXFT replacement filter kits feature the same anti-microbialagent. All filters are washable and reusable

microbialAirFilters

and are easily accessed from the top of the unit without the removal of the front cover.

 

 

 

FilteredFreshAirIntake

Friedrich PTAC units are capable of introducing up to 70 CFM of outside air into the conditioned space. The outdoor air passes

through a washable mesh filter to prevent debris from entering the airstream.

 

 

 

6

920-087-04(3-05)

Installation Instructions PXDR10 Drain Kit

NOTE: Determine whether drain will be located within the wall, on the indoor side, or will drain to the exterior of the building. Follow appropriate instructions below depending on your particular type of installation.

Internal Drain (optional for new construction)

NOTE: If installing an internal drain, you MUST install a drain kit on the wall sleeve before the wall sleeve is installed.

1.Refer to Figure 3 below and locate the drain within the "Primary" area for best drainage. Maintain at least a 1/2" clearance from the embossed area.

2.Using the mounting plate with the 1/2" hole as a template, mark and drill two, 3/16" mounting holes and a 1/2" drain hole.

3.Remove the backing from the gasket and mount it on the flat side of the mounting plate. (See Figure 4.) Insert the drain tube through the hole in the gasket and mounting plate so the tube flange will be against the wall sleeve.

4.Position the assembly beneath the drilled holes and secure it with #10-24x 1/2" machine screws and lock nuts provided. Seal the tops of the screws with silicone caulking.

5.Use 1/2" I.D. copper tube, PVC pipe, or vinyl hose (obtained locally) to connect the internal drain tube to the drain system in the building.

6.Referring to Detail A on page 6, locate and assemble the

(2) two cover plates and gaskets over the drain holes at the rear of the wall sleeve. Attach them with the #10 sheet metal screws provided. Make certain that the four overflow slots at the rear of the wall sleeve are not blocked (See drawing of the back of the sleeve on page 6).

7.If a deep wall extension (PXWE) is used, after installing the field supplied flashing, caulk as required. Be sure to caulk around the flashing and the wall sleeve where the hole was drilled for the drain tube.

Figure3

DrainKitLocationandInstallation

Secondary area

Primary area - no foam insulation

If the drain must be located in the secondary area, the foam insulation

must be cut away and removed to allow access to the drain.

3"

7.6 cm

Screw

Wall sleeve

Gasket

Mounting plate

Nut

Drain tube

7

920-087-04(3-05)

ExternalDrain(for new construction or unit replacement)

When using an external drain system, the condensate is removed through either of two drain holes on the back of the wall sleeve. Select the drain hole which best meets your drainage situation and install the drain kit. Seal off the other with a cover plate.

Drain Tube Installation

1.Peel the backing tape off the gaskets and apply the sticky side to one cover plate and one mounting plate as shown in Details A and B.

2.Placethedraintubethroughthegasketandthemounting plate with the flange toward the wall sleeve.

3.Attach the drain tube assembly to one of the two drain holes at the rear of the wall sleeve. The large flange on the mounting plate is positioned at the bottom of the sleeve facing toward the sleeve, Detail B. When the drain tube is positioned at the desired angle, tighten the screws.

NOTE: If the wall sleeve has not been installed, the drain tube must be rotated to a horizontal position until after the sleeve is installed. Tighten the mounting plate screws when the tube is in the proper position. Make certain that the four overflow slots at the rear of the wall sleeve are not blocked. (See the drawing below.)

Cover Plate Installation

4.Mount the foam gasket to the cover plate. Using two #10 x 1/2" sheet metal screws (provided), attach the cover plate to the remaining drain hole. Make certain the large flange on the plate is positioned at the bottom of the sleeve.

5.Discard the additional cover plate, gasket, machine screws, and locknuts.

 

PXDR1O

QUANTITY

DESCRIPTION

 

 

2

COVER PLATES

1

MOUNTING PLATE

1

DRAIN TUBE

3

MOUNTING PLATE GASKETS

4

#10 X 1/2" MOUNTING SCREWS

2

10-24X 1/2" MACH. SCREWS

2

LOCKNUTS

 

 

Figure4

DrainKitInstallation

Foam gasket

Mounting plate

DETAIL A

Foam gasket

1/2" O.D. tube

Mounting plate

#10 sheet metal screws

DETAIL B

NOTES:

The large flange on the mounting plate is positioned at the bottom of the sleeve facing toward the sleeve. The drain tube must be rotated to a horizontal position to allow for the wall sleeve to be installed into the wall. Once the wall sleeve is installed, return the drain tube to a downward angle.

8

920-087-04(3-05)

Wall Sleeve Installation Instructions (PDXWS)

NOTE: Insure that the unit is only installed in a wall structurally adequate to support the unit including the sleeve, chassis and accessories. If the sleeve projects more than 8" into the room, a subbase or other means of support MUST be used. Please read these instructions completely before attempting installation.

Figure5

TypicalWallSleeveInstallation

 

 

 

 

 

.

 

42¼"

 

min

 

 

 

 

 

 

cm)

 

 

 

3

 

 

 

 

.

 

 

 

 

Lintel to support masonry walls

(107

 

 

 

 

 

 

 

 

 

10"

 

 

 

 

 

(25.4 cm)

 

 

 

 

 

max.

 

 

 

 

 

 

 

 

 

13¾"

 

 

(34.

 

 

 

 

9

cm)

 

 

 

 

 

16¼" (41.3 cm)

50"

(127

 

Electrical receptacle

 

.

 

n

cm)

mi

 

Insulation

Electrical receptacle

Wall opening

Wall sleeve

 

Insulation

Smooth side of screw clip facing into room

Note: All 230/208V units are manufactured with a 60" power cord. The receptacle locations above must be followed to ensure proper connections.

ForDeepWallInstallationSeeSectionII

The following instructions apply ONLY to walls less than 13 1/4" in depth.

1.From inside the building, position the wall sleeve in the opening and push it through the wall so it protrudes at least 1/4" on the outside, note Figure 5.

2.Position the wall sleeve with a slight tilt towards the outside to facilitate condensate drainage. It should be level side-to-side and the front should be 1/4 bubble higher than the back. DO NOT allow any pitch toward the inside.

Electrical shock hazard.

Turn electric power OFF at the fuse box or service panel before making any electrical connections and ensure a proper ground connection is made before connecting line voltage. Failure to do so can result in property damage, personal injury and/or death.

9

920-087-04(3-05)

Figure6

Dimensions

¼" A (6.4 cm)

min.

13¾" (35 cm)

B

Wall

 

A

 

B

Dimension*

Allow

Allow for floor finishing

 

for wall

 

 

 

finishing

 

 

 

(Minimum)

Min.

Max

No Accessories

¼"

¼"

 

 

(6.4 mm)*

(6.4 mm)

---

With Subbase

1¾"

3½"

5"

 

(4.5 cm)

(8.9cm)

(12.7cm)

With Lateral Duct

¾"

¼"

 

 

(1.9 cm)

(6.4 mm)

---

* If more than one accessory is to be used, use the maximum dimension. If the wall thickness is more than 13¾" (35cm) - (A + ¼" [6.4 mm]), a sleeve extension must be used.

3.Drill two 3/16" holes through each side of the sleeve approximately 4" from top and 4" from bottom of sleeve. Screw four #10 x 1" screws (included) or appropriate fasteners for your installation, through the holes in the sides of the wall sleeve.

4.Apply sealant around the wall sleeve where it projects through the inside and outside wall surfaces. Apply the sealant to the screw heads or the tops of the fasteners used in Step #3.

NOTE: When sealing the sleeve on the outside of the building, be careful NOT to let the sealant block the two condensate drain holes or the four overfl ow slots at the bottom flange of the sleeve.

5.If the chassis and exterior grille are to be installed later, leave the weatherboard and center support in place, otherwise remove and dispose of them.

6.Provide a support lintel if the wall sleeve is installed in a concrete or masonry wall. (See Figure 7.)

Figure7

LintelInstallation

Main studs

Jack studs

Lintel

Main studs

Jack studs

Mounting screw holes

No holes in bottom of wall sleeve unless drain kit is used

NOTE: Construct wall opening to comply with all applicable building codes.

10