Friedrich VERT-I-PAK VEB42 User manual

1
Figure 1 — B-Series VERT-I-PAK
NOTE: Readtheentireinstructionmanualbeforestartingtheinstallation.
SAFETY CONSIDERATIONS
Improperinstallation,adjustment,alteration,service,maintenance,oruse
can cause explosion, fire, electrical shock, or other conditions which may
cause personal injury or property damage. Consult a qualified installer,
serviceagency,oryourdistributorordealerforinformationandassistance.
The qualified installer or agency must use factory-authorized parts or
accessorieswhenmodifyingthisproduct. Refertotheindividualinstructions
packaged with the parts or accessories when installing.
Followallsafetycodes. Wearsafetyglassesandworkgloves. Readthese
instructionsthoroughly andfollow allwarnings orcautions attachedto the
unit. Consult local building codes, the National Electric Code (NEC), and
theInstallationStandards,WarmAirHeatingandAirConditioningSystems
ANSI/NFPA 90B for special installation requirements.
Recognize safety information. This is the safety-alert symbol. When
you see this symbol on the unit or in instructions and manuals, be alert to
the potential for personal injury.
UnderstandthesignalwordsDANGER,WARNING,andCAUTION. These
wordsareusedwiththesafety-alertsymbol. DANGER identifiesthemost
serious hazards which will result in severe personal injury or death.
WARNINGsignifieshazardswhichcouldresultinpersonalinjuryordeath.
CAUTION is used to identify unsafe practices which would result in minor
personalinjuryorproductandpropertydamage. NOTEis used to convey
specialorsupplementalinformationortorepeatandemphasizeinformation
previously provided.
INSTALLATION
INSTRUCTIONS
FRIEDRICH AIR CONDITIONING CO.
Date: July 2000
Part No: 84016326 (IM010-01)
DANGER: Before installing or servicing system, always turn off main
powertosystem. Theremaybemorethanone(1)disconnectswitch. Turn
offauxiliaryheaterpowerifapplicable. Electricalshockcancausepersonal
injury or death.
INTRODUCTION
The VERT-I-PAK is ETL and c-ETL listed and is available in the cooling/
electric heating sizes shown in Table 1. The VERT-I-PAK units are
approved for upflow installations. They are designed to be installed in
closets.
TheVERT-I-PAKisaself-containedunit. Allcomponentsincludingoutdoor
coil, compressor, and refrigerant tubing are located in a single package.
Theunitsarealreadypiped,charged,andwired. RefertoFigure2forbasic
unit dimensions.
P.O. BOX 1540 • San Antonio, TX 78295
Ph: 210-357-4400 • FAX: [phone]
www.friedrich.com
SELF-CONTAINED INDOOR AIR CONDITIONER / HEAT PUMP
Table 1 - Unit Sizes And Available Electric Heat
VEB42, VHB42, VEB48, VHB48
UNIT COOLING HEATING AVAILABLE
SIZE BTUH BTUH AT 47ºF KW
V(E,H)B42 42,000 41,000 10 or 15
V(E,H)B48 48,000 47,000 15 or 20

2
Figure 2 — V(E,H)B-Series Unit Dimensions (Inches)

3
Figure 4 — Front Free Return Figure 6 — Side Ducted
Return
with 1" duct flange; and left side ducted return with 1" duct flange. See
Figures 4, 5 & 6.
NOTE: Ductedreturnairconfigurationsrequirefieldfabricationofaduct
mountedfilterbox. Filtersarenotsuppliedwithunitsconfiguredforducted
return.
INSTALLATION
The VERT-I-PAK was designed for installation in residential and light
commercial applications. These instructions detail a typical method of
installation. Figure 3 shows the typical component location and airflow
paths through the unit.
TheVERT-I-PAKB-Seriesunitsareavailableinthreereturnairconfigurations:
front "free-return" with filter frame; front ducted return
To remove
filter, slide it to
the right side of
the unit as
shown
Air Filter
Filter Rails
Figure 5 — Front Ducted Return
Figure 3 – Component Location and Air Flow Paths
Optional Return Air
Air Filter
Return Air
Control Box
Compressor
Reversing Valve
(Heat Pump)
Condensate Drain
Condenser Coil
Outdoor Blower
Outdoor Air Exhaust
Indoor Blower
Outdoor Air Intake
Expansion Valve
Auxillary Electric Heat
Indoor Air Exhaust
Indoor Coil

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V. INDOOR AND OUTDOOR AIR REQUIREMENTS
The indoor and outdoor air systems are designed to operate at specified
airflowratesandexternalstaticpressures. Thesupplyandreturnairduct
systempressurelosses(includingfilter,louver/grilleandregisters)mustnot
exceedthelisted external staticpressures for either theindoor or outdoor
air systems.
CAUTION: Failuretoadheretoindoorairandoutdoorairrequirementsas
listed in the following sections will void unit warranty.
A. Indoor-Air (Conditioned Supply Air) System
Theunitmaybeappliedineitherafreereturnairconfigurationoraducted
returnairconfiguration. Thesupplyairpathisintendedtobeducted. The
designandconstructionoftheindoor-airsystemmustprovideadequateair
distribution to ensure comfort levels throughout the structure.
Thecombinedpressurelossesofthereturnandsupplyairpathsmustnot
exceed the external static capabilities of the system at the design airflow
(See Table 2).
If the unit is installed in a closet behind a door and the return air louver or
grille is directly opposite the unit RA opening, 2-in. clearance is required
betweenthefrontoftheunitandthebacksideofthelouverorgrille. Ifthe
louveror grille islocatedelsewhere on thedoor so itisnot directly infront
of the RA opening, a minimum of 7-in. clearance is required between the
frontoftheunitandthebacksideofthedoor. Theminimum"netfreeopen
area" required for the RA louver or grille is listed in Table 2.
I. GENERAL RECOMMENDATIONS (DO'S AND DO NOT'S)
• DO read the instructions completely before installation.
• DO take time to perform a quality installation.
• DO NOT obstruct or restrict indoor or outdoor air paths.
• When using flex duct: DO install properly. DO NOT crush or make
sharp bends in flex duct, use only gradual bends.
• DO tape and seal all duct joints.
• DO check the indoor conditioned air duct system static pressure
losses. It should not exceed those listed in Table 2. Consult your
dealer or distributor for more information.
• When designing indoor supply systems, DO NOT reduce air intakes
or discharge sizes.
• DO insulate ALL conditioned air duct system components.
• DO NOT locate room thermostat near conditioned air diffusers.
• DO locate thermostat on an interior wall.
• DO check that condensate drain line drains freely.
• DO NOT let debris fall and collect in indoor or outdoor blowers.
• DONOTdrillintounit(exceptfor1in.flangesforductedreturnunits).
This could cause a refrigerant leak.
• DO handle unit with care.
• DO provide minimum installation and service clearances.
• DO follow all guidelines for indoor and outdoor air system.
• DONOTsubstituteanycomponentswithoutcheckingwithyourdealer
ordistributor. Ifyoudosubstitute,getapprovalinwriting. Substitutions
without approval void unit warranty.
• DONOTguess,consult yourdealerordistributorifanyportionofthe
installation procedure is unclear.
II. UNPACK AND INSPECT UNIT
Remove shipping protection and pallet from unit and inspect for damage.
Besuretocheckforconcealedinternalshippingdamage. Donotinstalla
damaged unit.
III. SUPPLIES NEEDED FOR INSTALLATION
The following items are required to install unit.
• Adhesive duct tape, UL 181 aluminum or equivalent.
CAUTION: Incorrecttypeofducttapemaybeafirehazard. Afailure
tofollowthiswarningcouldresultinafireorexplosion,andpersonalinjury
or death.
• 8-conductor thermostat cable (20 gage wire minimum).
CAUTION: Donotusethermostatwirewithlessthantherecommended
number of conductors.
• Supplies to connect indoor air (conditioned air supply) duct to unit.
• Supplies to connect power to unit.
• Supplies to connect outdoor-air duct to unit.
• Supplies to connect condensate drain line.
• Supplies to connect low-voltage thermostat to unit.
IV. SERVICE CLEARANCE AND UNIT LOCATION
For serviceability and to minimize transmitted noise and vibration, unit
should be installed with at least 1 inch clearance from walls. (See
Figure 7)
Aminimumof30in.serviceclearancemust be allowedinfrontoftheunit.
Allserviceablecomponentsareaccessiblefromthefrontoftheunitwiththe
front panels removed. The condensate drain fitting is located in the front
right hand corner post.
Table 2 — Indoor Air System Data
UNIT SIZE
42
48
Airflow
(CFM)
1,400
1,400
ESP
(in WG)
0.50
0.50
RA Grille
Minimum Net
Free Open Area
(Sq. In.)
525
525
Figure 7 — Recommended Service Clearance
OUTDOOR AIR
EXHAUST
OUTDOOR AIR
INTAKE
INDOOR AIR
SUPPLY
REQUIRED
SERVICE
CLEARANCE
28"
40"
40"

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Figure 8 — Typical Configurations for Ducted Outside Air Applications
VI. LINE VOLTAGE ELECTRICAL WIRING
DANGER: Electrical shock hazard. Turn OFF electric power at the
fuse box or service panel before making any electrical connections and
ensureapropergroundconnectionismadebeforeconnectinglinevoltage.
Failuretodosocanresultinpropertydamage,personalinjuryand/ordeath.
A. Grounding
CAUTION: The unit must be electrically wired and grounded in
accordancewithallstateandlocalcodes,nationalelectriccode,andNFPA
70. UnitandcontrolswillNOToperateunlessproperlygrounded. Aground
lugisprovidedforgroundconnection. Useonlyapprovedcopperwireand
connectors from unit to service panel.
B. Power Supply
NOTE: Line voltage circuit is completely factory wired. Make all line
voltage connections inside circuit breaker junction box.
ThecircuitbreakersorfusesusedforbranchcircuitprotectionshouldbeUL
recognized. If circuit breakers are used, the circuit breaker for the
compressorcircuitmusthaveaULHACRrating. Iffusesareused,thefuse
for the compressor circuit MUST be time delay type.
CAUTION: Units are dual voltage rated 208-230/1/60. The 24V
control transformer must be connected for either 208V or 240V power
source for proper operation. Line voltage must not exceed 253V or go
below 197V. The transformer connection must be changed for 208V
operation.
Depending on auxiliary heater size, unit must be supplied with 2 or 3
separate208Vor240Vcircuitsfromstructure’sfuseboxorservicepanel.
Each circuit is internally connected to a circuit breaker located in the unit
controlboxlocatedatthefrontcenteroftheunit. RefertoTable4andTable
5 for required circuits and recommended wire size for each circuit.
B. Outdoor Air System
Asacompletelyself-containedsystem,theVert-I-Pakrequiresanadequate
supplyofoutdoorairtoexchangeheatfromtheoutdooraircoil. Theoutdoor
airintakeanddischargeopeningsarelocatedonthebacksideoftheunit.
Theunitmaybeinstalledwheretheoutdoorairpathrunsthroughthewall
of thebuildingdirectlybehindthe unit or wheretheoutdoorairintakeand
dischargepathsareductedseparatelyawayfromtheunit. Figure8shows
two typical ducted OA designs.
CAUTION: To ensure proper operation, the outdoor air intake and
dischargeairpathsmustbefreeandunobstructed. Thetwoairpathsmust
be situated to ensure that the intake and discharge air do not recirculate
(also called short-circuit).
For ducted outside air applications, the combined pressure losses of the
intakeanddischargeairpathsmustnotexceedtheexternalstaticcapabilities
of the system at the design airflow (See Table 3).
Forthrough-the-wallapplications,awallsleeveandlouverkitisavailable.
Follow the installation instructions provided with the kit.
INTAKE
OUTDOOR
AIR
INTAKE
OUTSIDE
WALL
FLOOR
CEILING
EXHAUST
OUTDOOR AIR
EXHAUST
INTAKE
OUTSIDE
WALL
FLOOR
OUTDOOR AIR
EXHAUST
OUTDOOR AIR
INTAKE
CEILING
EXHAUST
BACK
OF UNIT
OUTSIDE
WALL
UNIT SIZE
42
48
Airflow
(CFM)
1,800
1,800
ESP
(in WG)
0.25
0.25
Table 3 — Outdoor Air System Data

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Note: Figure 10 reflects a typical 3 ton 15KW unit. Actual layout
is based on unit size and auxiliary heater size.
Figure 10 — Line Voltage And Ground Connections
1If wire is applied at ambient greater than 30°C (86°F), consult Table 310-16 of the NEC (ANSI/NFPA 70). The ampacity of nonmetalic-sheathed
cable (NM), trade name ROMEX, shall be that of 60°C (140°F) conductors, per the NEC (ANSI/NFPA 70) Article 336-30. If other than uncoated
(non-plated), 60°C or 75°C (140°F or 167°F) insulation, copper wire (solid wire for 10 AWG and smaller, stranded wire for larger than 10 AWG) is
used, consult applicable tables of the NEC (ANSI/NFPA 70).
2Length shown is as measured 1 way along the wire path between the unit and the service panel for voltage drop not to exceed 10v, consult the
factory for longer wire lengths if needed.
Figure 9 — Gaining Access to Wiring Compartment
C. Electrical Connections
Ground lug and line voltage connection terminals are located behind the
circuitbreakerpanelofthecontrolbox. SeeFigure9. Completetheground
wire connection. After completing ground wire connection, complete line
voltage connections. See Figure 10.
WARNING: Failuretoadheretominimum wire sizes, maximum over-
current protection, disconnect, and grounding requirements can cause
personalinjury,electricshock,orafirehazard. AllwiringMUSTcomplywith
requirements of state and local codes and ordinances and the national
electric code.
Romex
Wiring
Bushings
Control
Box
Table 4 — Heat Pump Electrical Data
Unit
Size
42
48
Compressor
Amps
20.4
26.4
Outdoor Fan
Amps
4.5
4.5
Indoor Fan
Amps
3.0
3.0
Compressor
Circuit
Ampacity
33.0
40.5
Minimum
Wire
Size1
8
6
Max. Wire
Length
(Ft.2)
60
100
Max. Fuse3
or Breaker
Size Amps
50
60
Heat Pump
(Field Wiring)
Auxillary
Heater #1
(Field Wiring)
Ground
(Field Wiring)
Ground Lug Auxillary
Heater #2
(Field Wiring)
Auxillary
Heater #2
Auxillary
Heater #1
Heat Pump
Table 5 — Auxiliary Electric Heat Electrical Data
Electric
Heater
(KW)
10
15
20
Unit
Size
42
42, 48
48
Ckt.# 1
Amps
41.6
20.8
41.6
Ckt. #1
Ampacity
52.0
26.0
52.0
Ckt. #1
Wire
Size
6
10
6
Ckt. #1
Max
Fuse3
Size
Amps
60
30
60
Ckt. #1
Max
Wire
Length2
(Ft)
100
100
100
Ckt. #2
Amps
N/A
52.0
52.0
Ckt. #2
Max
Fuse3
Size
Amps
N/A
60
60
Ckt. #2
Max
Wire
Length2
(Ft.)
N/A
100
100
Ckt. #2
Ampacity
N/A
52.0
52.0
Ckt. #2
Wire
Size1
N/A
6
6

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Figure 11 — Thermostat Figure 4 — Terminal and Switch Location
Figure 5 — Anticipation selection switch settings
5. Level the thermostat. Tighten the two mounting screws.
6. Replace the thermostat cover.
Do not mount the thermostat where it may be affected by:
• drafts or dead-air spots behind doors and in corners.
• hot or cold air flow from ducts.
• radiant heat from sun or appliances.
• concealed pipes or chimneys.
• unheated (uncooled) areas behind thermostat, such as an outside
wall.
Thethermostatisaprecisioninstrumentandwascarefullyadjustedatthe
factory. Handle it carefully.
CAUTION: Disconnect power supply before beginning installation of
thermostattopreventelectricalshockorequipmentdamage. Donotshort
acrossthermostatterminals. Thiscanburnoutthethermostatanticipator.
B. Thermostat Mounting and Wiring
Allwiring for thethermostat circuitmust comply withNEC, state andlocal
codes. UseNo. 20AWG color-coded, insulated (35°C minimum)wire. If
thermostat is located more than 100 ft from unit (as measured along the
control voltage wires), use No. 18 AWG color-coded wires to avoid
excessive voltage drop.
1. In replacementapplications, check the existing thermostat wiring for
crackedorfrayedinsulation. Replaceanywiringinpoorcondition. All
wiring must comply with local codes and ordinances.
2. Run wiring (if necessary) to the location. Thread wires through hole
in the packing material saved in step 2. Connect the wires to the
terminals on the back of the thermostat. (See Figure 12.)
3. Pushtheexcesswirebackthroughtheholeandpluganyopeningwith
packing material to prevent drafts that may affect thermostat perfor-
mance.
4. Looselysecurethethermostattothewallwithscrewsthroughthetwo
mounting holes in the middle of the thermostat. The sheetmetal
screws included with the thermostat are designed for useinaplas-
ter wall and anchors are not needed.
VII. THERMOSTAT MOUNTING AND WIRING
A. Thermostat Location
Locate the thermostat about 5 ft. above the floor in an area with good
circulation at average indoor temperature.
Table 2 — Second Stage Heat and Emergency Heat
Table 1 — First Stage Heat and Cool
10
14
16
30
0.8°F
1.1°F
1.3°F
2.4°F
10
14
16
30
0.3°F
0.4°F
0.5°F
0.9°F
Anticipation
Reference
Number
Approximate
Temperature
Differential
Approximate
Temperature
Differential
Anticipation
Reference
Number

8
Figure 17 — Terminal and Switch Location
WARNING: Do not vent refrigerant to atmosphere. Recover all
refrigerantbeforesystemrepairorfinalunitdisposaltoavoidpersonalinjury
or death. Use all service ports and open all flow-control devices.
X. MAINTENANCE
NOTE: ItisrecommendedthattheVert-I-Pakbeinspectedandserviced
on an annual basis by a qualified technician.
If you perform maintenance on the unit yourself, remember that certain
mechanical and electrical skills, plus specialized tools are required to
properly perform maintenance. Personal injury or death may result if you
areNOTproperly trained. You should callyourinstalling dealer if youare
uncertain about your ability to perform maintenance.
WARNING: Electrical shock hazard. Turn OFF power to the system
before performing any maintenance or removing panels. Failure to do so
can result in personal injury and/or death.
A. Filters
NOTE:Dirtyfiltersarethemostcommoncauseofinadequateheatingand
cooling performance.
• Inspect filters monthly
• Replace disposable type filters before they become clogged
• Use water and mild detergent to clean washable type filters
NOTE: Some filters are marked with an arrow to indicate the proper
direction of air flow through the filter. The arrow MUST point in the
direction of air flow.
XI. INSTALLATION - FINAL CHECKLIST
1. Check to see if all duct work is sealed to unit for an airtight fit.
2. Insure that the condensate drain line is installed and run to an
appropriate disposal site.
3. Make sure the circuit breakers inside the unit are ON.
4. Insure that the thermostat is level and properly installed. Heat
anticipator indicator is set to the correct setting.
5. Test run in Heating, Cooling, and Emergency Heat mode as follows:
a. Set fan control to ON. If fan runs, return control to AUTO setting.
This verifies fan is working properly.
b. Set system control from OFF to COOL. Lower temperature
selector to 50°F or lower. The compressor should energize and
cool air should flow from room registers. Once cooling test is
complete, return system control to OFF setting. Wait 5 minutes.
c. SetsystemcontroltoHEATandraisetemperatureselectorto80°F
orhigher. Compressorshouldenergize,andwarmairshouldflow
from room registers.
d. Set system control to EM HEAT (Emergency Heat). Compressor
shouldturnoffandwarmairshouldcontinuetoflowfromregisters.
NOTE:DuringEMHEAToperation,temperatureofairflowingfromroom
registersmaybeslightlywarmerthanduringnormalHEATmodeoperation.
7. LeavebothInstallationManualandUsersManualwithowneroruser
of equipment.
8. After 72 hours of operation, the unit will achieve full rated operating
performance.
NOTE: Do not connect any unused thermostat cable wires.
CAUTION: Recheck wiring color code schedule to be certain proper
terminals are connected before applying power. Improper wiring or
installation may damage thermostat.
VIII. CONDENSATE DRAIN LINE
The condensate drain exits the unit just above floor level at the right side
front corner of the unit. The condensate drain line is already internally
trapped therefore, no external condensate trap is required.
Installacondensatedrainlineofthesamesizeasthedrainfittingontheunit.
PVCplasticpipe(3/4in.I.D.)makesanidealcondensateline(iflocalcodes
allow).
Run condensate drain line from unit to floor drain or outside perimeter of
building per local codes.
Thecondensatelinemusthaveaminimumdropof1/4"perrunningfootas
itleavestheunit. Whenahorizontalrunof15ft.orlongerisrequired,itmay
benecessarytoinstallaventteeinthedrainlineneartheunitorusealarger
diameter drain line. This is to eliminate air trapping and allow proper
condensate drainage.
Heatpumpsgeneratecondensateduringbothcoolingandheatingmodes.
Condensatedrainlinemustbeprotectedfromfreezingtopreventcondensate
from backing up in unit during freezing outdoor conditions.
IX. REFRIGERANT
The unit is pre-charged at the factory to the correct operating charge and
shouldnotrequireadjustment. However,shouldanadjustmentberequired
or if the unit requires service, adhere to the following precautions.
WARNING: Gageportsareequippedwithschradervalves. Toprevent
personalinjury,wearsafetyglassesandgloveswhenhandlingrefrigerant.
CAUTION: Compressordamagemayoccurifsystemisovercharged.
See unit serial tag for amount and type of refrigerant.
C. Wire Thermostat Cable to Unit Terminal Strip
Attach thermostat wires to low-voltage terminal block on left side of
control box in locations indicated in Figure 12.