Retro Aire VPRC09, VPRH09, VPRC12, VPRH12, VPRH18 Installation, Operation & Maintenance Manual

Sing

 e Right Fit for Comfort

VPRC / VPRH

Single Package Vertical Air Conditioner/Heat Pump

le Package Vertical Air Conditioner/Heat Pum

™

Installation,

Operation &

Maintenance Manual

ECR International Inc

2201 Dwyer Avenue

Utica, NY 13501

e-mail: [e-mail]

An ISO 9001-2008 Certifi ed Company

P/N 240006980, Rev. R [02/19/2013]

TABLE OF CONTENTS

Receiving Information ................................................................................................... 3

Important Safety Information ......................................................................................... 4

Dimensional/Physical Data ............................................................................................. 5

Components ................................................................................................................ 8

General Product Information .......................................................................................... 9

Control Box Location ....................................................................................................10

Enclosure Preparation ..................................................................................................12

Wall Sleeve Installation ................................................................................................14

Typical Chassis And Wall Sleeve, Installation ...................................................................15

F

ront-Mounted Control Panel - Chassis And Wall Sleeve, Installation ..................................16

Side

-Mounted Control Panel - Chassis And Wall Sleeve, Installation ...................................17

Condensate Drain ........................................................................................................18

Electrical Connections ..................................................................................................19

Final Inspection And Start-Up ........................................................................................21

Sequence Of Operation.................................................................................................24

Maintenance ...............................................................................................................25

Troubleshooting ...........................................................................................................26

Electrical Specifi cations ................................................................................................28

Optional - Return Air Access Panel .................................................................................33

Optional - Hydronic Coil ...............................................................................................34

Optional Carrier 50QT/ET Replacement — Installation .......................................................37

Operational Performance Data .......................................................................................39

Start-Up Report ...........................................................................................................40

AHRI Certifi ed ™ is a

trademark of the Air-

Conditioning, Heating

and Refrigeration

Institute

Information and specifi cations outlined in this manual in effect at the

time of printing of this manual. ECR International reserves the right to

discontinue, change specifi cations or system design at any time without

The Right Fit for Comfort 2 P/N 240006980, Rev. R [02/2013]

notice and without incurring any obligation, whatsoever.

RECEIVING INFORMATION

Shipping damage MUST be reported to the carrier IMMEDIATELY.

Examine exterior.

Remove cover and examine compressor and piping for signs of damage.

Inspection

Check shipment against bill of lading.
Verify equipment received as ordered.

Verify unit:

• Unit size and type correct per submittal sheet and
job requirements?

• Louver color correct, if special color specifi ed?

• Control box located on correct side?

• factory installed on front, left or right side
models 09–18;

• fi eld modifi able to left or right model 24 only;

• front side only models 30–36.

• Voltage correct?

• Wall sleeve correct for unit, and correct depth?
[Available in depths for walls of 6½ inches
(165 mm) or deeper, in increments of ½ inch
(12.7 mm)]

• Electric heat correct capacity, if used?

• Hydronic coil included, if required? Piping located
as required?

General Information

Installation shall be completed by qualifi ed agency.
this manual and warranty for future reference.

Installer review this manual to verify unit has been
installed correctly. Run unit for one complete cycle to
verify proper function.

To obtain technical service or warranty assistance
during or after installation, contact your local
representative.

Visit our web site www.retroaire.com for local
representative listing.

For further assistance call 1-800-325-5479.
When calling for assistance, please have following

information ready:
Model Number_________________________

Serial Number_________________________

Date of installation______________________

Retain

Inspect each component for damage. Concealed
damage must be reported to carrier within 15 days
of receipt of shipment.

Carrier must make proper notation on delivery
receipt of all damage identifi ed and complete carrier
inspection report.

Purchaser must notify Manufacturer’s Service
department of all damage and is responsible for fi ling
any necessary claims with carrier.

Customer Service : [phone]

P/N 240006980, Rev. R [02/2013] 3 Made in USA

ot

workin

Become Familiar With Symbols
Identifying Potential Hazards.

IMPORTANT SAFETY INFORMATION

!

All fi eld wiring shall conform to requirements of authority
having jurisdiction or in absence of such requirements:

• United States - National Electrical Code, ANSI/NFPA
70

• Canada - CSA C22.1 Canadian Electrical Code Part 1.

!

WARNING

Fire, and electrical shock hazard. Improper
installation could result in death or serious injury.
Read this manual and understand all requirements
before beginning installation.

Become Familiar With Symbols
Identifying Potential Hazards.

!

DANGER

Indicates a hazardous situation which, if not
avoided, WILL result in death or serious injury.

!

WARNING

Tampering with VPRC/VPRH is dangerous and could
result in serious injury or death. Do not modify or
change this unit.

Safety Information

• Installation by qualifi ed personnel.

• Turn off electrical supply before servicing unit.

• Inspect all parts for damage prior to installation and
start-up.

• Do not use unit if it has damaged wiring, is n
working properly, or has been damaged or dropped.

• Connect to properly grounded electrical supply with
proper voltage as stated on rating plate.

• Have proper over current protection (i.e. time- delay
fuse/HACR Breaker) as listed on Rating Plate.

• Connect unit to properly grounded electrical supply.
Do not fail to properly ground this unit.

• Tampering voids all warranties.

ot

!

WARNING

Indicates a hazardous situation which, if not
avoided, could result in death or serious injury.

!

CAUTION

Indicates a hazardous situation which, if not
avoided, could result in minor or moderate injury.

NOTICE

Indicates information which should be followed to
ensure proper installation and operation.

The Right Fit for Comfort 4 P/N 240006980, Rev. R [02/2013]

DIMENSIONAL/PHYSICAL DATA

Figure 1 VPRC/ VPRH Dimensions — Inches (mm) - Models 09, 12, 19 & 24

Table 1 Nominal Capacities, Dimensions, Shipping Weights And Return Air Filter Sizes

Model

Dimension

A 7

B 40 (1016) 50 (1270)

C 21-

D 25 (635) 25 (635)

E 14

F 25 (635) 32 (813)

G 10

H 3

J 16

K 6

L 9-

09–12

in. (mm)

-5/8

(194) 6

7/16

(545) 26

-5/8

(372) 20

-5/16

(261) 11

-1/2

(89) 3

-1/2

(419) 21

-1/8

(156) 8-

5/8

(245) 12 (305)

19-24

in. (mm)

-1/2

(165)

-7/16

(672)

-5/8

(524)

-3/8

(289)

1/2

(89)

-9/16

(548)

3/16

(208)

Model

09

12

19

Straight cool/Limited Range Heat pump nominal

capacities

9,000 12,000 19,000 24,000 Btuh

2.6 3.5 5.6 7.0 kW

Shipping weight

pounds (kg)

(shipping weight =

unit weight + 60

lbs (27 kg)

190

(86)

190

(86)

300

(136)

Return Air Filter Dimensions

All models must have an air fi lter

installed prior to operation.

(406 x 635)

(406 x 635)

(406 x 635)

inches (mm)

Chassis

Mounted

16 x 25

16 x 25

16 x 25

Return Air

Access Panel

Mounted

20 x 20

(508 x 508)

20 x 20

(508 x 508)

20 x 30

(508 x 762)

M 4

N 12-1/2 (317) 12-1/2 (317)

O 8 3/4 (222) 13 3/4 (348)

P/N 240006980, Rev. R [02/2013] 5 Made in USA

-1/4

(108) 10

-3/8

(264)

24

300

(136)

16 x 25

(406 x 635)

20 x 30

(508 x 762)

DIMENSIONAL/PHYSICAL DATA

Figure 2 VPRC/ VPRH Dimensions - Model 18

Table 2 Dimensions, Shipping Weights And Return Air Filter Sizes

Model

Dimension

A7­B 40 (1016)

18

in. (mm)

3/4

(197)

Straight cool/Limited Range Heat pump nominal

capacities

18,000 Btuh

5.3 kW

C21

-7/16

(545)
D 25 (635)
E14
F 24
G9
H3-

J 16­K6­L9

-13/16

-5/8

-13/16
1/2
1/2

1/8

-1/2

(376)

(625)

(249)
(89)
(419)

(156)
(241)

Model

18

Shipping weight pounds

(kg)

(shipping weight = unit

weight + 60 lbs (27 kg)

260

(118)

All models must have an air fi lter installed

Chassis mounted

16 x 25

(406 x 635)

Return Air Filter Dimensions

inches (mm)

prior to operation.

Return air access panel

mounted

20 x 20

(508 x 508)

M4

-1/4

(108)
N 12-1/2 (317)
O 8-3/4 (222)

The Right Fit for Comfort 6 P/N 240006980, Rev. R [02/2013]

DIMENSIONAL/PHYSICAL DATA

Figure 3 VPRC/ VPRH Dimensions - Models 30 & 36

Table 3 Dimensions, Shipping Weights And Return Air Filter Sizes - Models 30 & 36

Model

Dimension

30

in. (mm)

A8

3/4

(222) 8

36

in. (mm)
3/4

(222)

Straight Cool/Limited Range Heat Pump Nominal Capacities

30,000 36,000 Btuh

8.8 10.5 kW

B 56 (1422) 56 (1422)
D 28 (711) 28 (711)
E21
G 6

3/4

(553) 21

1/4

(159) 6

3/4

1/4

(553)
(159)

Model

Shipping weight

pounds (kg)

(shipping weight = unit

weight + 60 lbs (27 kg)

Return air fi lter dimensions

inches (mm)

All models must have an air fi lter

installed prior to operation.

Chassis mounted

J 28 (711) 28 (711)

K11

L10

1/4

(286) 11

1/4

(260) 10

1/4
1/4

(286)
(260)

30

36

430

(195)

430

(195)

16 x 25

(406 x 635)

16 x 25

(406x 635)

M 16 (406) 16 (406)
N 1 5/8 (41) 1 5/8 (41)

Return air

access panel

mounted

20 x 30

(508 x 762)

20 x 30

(508 x 762)

P/N 240006980, Rev. R [02/2013] 7 Made in USA

Return

Return

Supply

Supply

8

1

Return

11

COMPONENTS

Models 09–24 Models 30–36

1

Supply

Outside louver

12

8

3

4

Supply

Return

Outside louver

8

3

10

Front — 09, 12, 18, 19, 24

1 Indoor coil (behind fi lter)
2 Outdoor coil
3 Control/power box
4 Alternate control box location

(right or left side)

5 Thermostatic drain valve

(09, 12, 19 and 24 only)

6 24-volt connection strip
7 Power cord strain relief

(for units with power cords)

8 Line voltage power entrances

(for hard-wired units)

9 Optional disconnect switch
10 Drain stub location options

(front, right or left side) —
½” I.D. connection

11 Fresh air shutter
12 Return air fi lter (see Table 19,

Page 40 for dimensions)

Wall sleeve,

10

custom for application

6

Wall sleeve,

custom for application

Front — 30, 36

3

7

6

Control panel, typical

09–24

3

9

1 Indoor coil (behind fi lter)
2 Outdoor coil
3 Control/power box
4 24-volt connection strip
5 Line voltage power

entrances

6 Drain stub location — ¾”

I.D. connection

7 Motorized fresh air

damper switch

8 Return air fi lter (see

Table 19, Page 40 for
dimensions)

Control panel, typical

30, 36

4

5

7

4

Rear — 18

2

5

10

Rear — 09, 12, 19, 24

2

Rear — 30, 36

The Right Fit for Comfort 8 P/N 240006980, Rev. R [02/2013]

Transition Kit #

55002100

GENERAL PRODUCT INFORMATION

Product Description

• Microprocessor Control Board

• VPRC/VPRH 09–36 single package vertical air
conditioner (SPVAC) and heat pump (SPVHP).

• R-410A refrigerant.

• Custom wall sleeve and outdoor louver.

• Insulated top-discharge indoor compartment.

• VPRC/VPRH vertical discharge allows ducting to top of
room(s).

• VPRC/VPRH models can be applied in non-ducted return
air applications. VPRC/VPRH 30-36 can also be applied
in ducted return air applications.

• VPRH models are limited-range heat pumps. Heat pump
operation will cease at approximately 40°F (4.4°C)
outdoor temperature.

Standard Controls And Components:

• Ability to utilize single or 2-stage thermostat for
VPRH emergency heat.

• Front-mounted control box standard for 09–36
(right or left-side mounting available for 09–24

• Field-Installed Accessories:

only).

• Manual fresh air damper for models 09–24,
motorized fresh air damper for models 30–36.

• Disposable return air fi lter for models 09–24.
Washable, reusable return air fi lter for models
30–36 only.

• Thermostatic drain pan valve for heat pump
operation condensate removal (VPRH 09, 12,

19–24 only).

• Air Systems

– Models VPRC/VPRH 09, 12, 19 & 24 blow air

across outdoor coil, models VPRC/VPRH 18, 30
& 36 draw air through outdoor coil.

• Condensate Removal

– VPRC/VPRH 09, 12, 19 & 24 — Outdoor blower

incorporates condensate slinger ring. Base pans
are designed to accommodate fi eld-installed
drain stub kit if necessary. Drain stub kits are
dependent upon application. Environments with
higher humidity levels may require drain stub
kits.

– VPRC/VPRH 18, 30 & 36 requires internal drain

system. Models VPRC/VPRH 18 are supplied
standard with overfl ow drain stub kit for fi eld
installation.

– VPRC/VPRH 30-36 outdoor coil side drain stub

is integral to base pan, allows easy connection
of drain line.

APPLICATION LIMITATIONS

• Contact manufacturer if units will be operated in

– Random start timer prevents multiple units

from simultaneous start-ups.

– Fan purge — fan remains on for 60 seconds

after heat/cool call is satisfi ed

– Anti-short-cycle compressor protection

prevents compressor from rapid cycling

– Freeze protection — prevents evaporator coil

freeze up, improving compressor reliability

– Low ambient lockout prevents compressor

operation in outdoor temperatures less than
40°F (4.4°C)

– Test operation — all timers are temporarily

suppressed to allow ease of testing or
troubleshooting

– Control board LED provides self-diagnostic

troubleshooting codes (see Sequence of
Operation, page 24)

– Hydronic heat plenum (coil included on models

09–24 only).

– Remote wall thermostat (digital 1-stage or

2-stage available).

– Return air access panel - optional solid panel

available for application with separate air
intake.

– Models 09, 12, 19–24 only — Drain stub kit,

can be installed on front, right side or left side.

– Wall sleeve transition kit Model 30 only-

Needed when installing a VPRC/VPRH 30
in place of a VPAC/VPHP 30. See page 8.
[Transition Kit 550002100]

temperatures outside ranges listed below.

Table 4 Ambient Air Limitations

OUTDOOR [Ambient air temperature °F (°C)]

COOLING HEATING

Minimum Maximum Maximum

Dry bulb Dry bulb Dry bulb

67 (19) 115 (46) 75 (24)

INDOOR [Ambient air temperature °F (°C)]

COOLING HEATING

Minimum Maximum Min. Max.

Dry

bulb

67 (19) 57 (14) 90 (32) 72 (22) 50 (10) 80 (27)

Wet
bulb

Dry

bulb

Wet

bulb

Dry bulb

P/N 240006980, Rev. R [02/2013] 9 Made in USA

CONTROL BOX LOCATION

Control Box Location

• VPRC/VPRH control box is factory mounted in front

position, unless otherwise specifi ed.

• Control box can be factory mounted for front, left or

right side applications on models 09–24.

• Control box is available only on front for models 30 and

36.

Figure 4 Optional Control Box Locations

Relocating Control Box

(Models 09, 12, 19, & 24) Field relocation of Control Box
must be done prior to installing unit.

1.

2.

3.

4.

5.

6.

Front-mounted
control box
(standard)

Optional control box
locations: right side or
left side (can be relocated
in the fi eld on models
09–12 and models

19–24)

7.

8.

9.

!

DANGER

Electrical shock hazard. Disconnect power to unit
before servicing or accessing control compartment.
Failure to do so will result in severe personal injury
or death.

Determine desired location.
Remove sheet metal panels from current control box

location, and desired control box location.
Remove control knock-out from panel.
Remove insulation directly behind knock-out.
Use metal tape to seal opening in panel where control

box was originally located.
Cut wire ties securing wire harness.
Remove mounting screws holding control box in place.
Relocate control box, and install mounting screws.
Use wire ties to bundle and secure wire harness.

!

DANGER

Electrical shock hazard. Verify wires do not contact
any sharp sheet metal edges, refrigeration tubing,
outdoor fan motor, or any moving parts. Failure to
do so will result in severe personal injury or death.

Figure 5 Front-Mounted Control Box

Only (Models 30 & 36)

Front-mounted
control box only

Motorized fresh
air damper switch

location

10.

Replace sheet metal panels.

The Right Fit for Comfort 10 P/N 240006980, Rev. R [02/2013]

ENCLOSURE PREPARATION

Proper Clearances

• For proper air fl ow and sound levels minimum clearance
of 4 inches (102 mm) [models 09–18] or 6 inches, (152
mm) [models 24–36] between enclosure and chassis be
maintained (see Figure 6).

• For service, maintain minimum of 6 inches (152 mm)
on both sides and front for non-ducted return air
applications only.

• Ducted return air applications only require minimal
spacing for service requirements.

Figure 6 Minimum Clearances

Minimum clearances [inches (mm)]

Model A B C

09, 12, 18

19, 24, 30, 36

A = distance from left side of unit to interior wall
B = distance from right side of unit to interior wall
C = distance from front of unit to interior wall

4

(102mm)4 (102mm)4 (102mm)

6

(152mm)6 (152mm)6 (152mm)

Rough Openings
Access opening — allows unit insertion. Provide minimum

opening dimensions. (See Figure 21, Page 33, for
dimensions of opening when using optional return access
panel assembly.)

Table 5 Minimum Access Opening Dimensions

(Figure 6)

Model

09–12

18

19–24

30

36

Width

[inches (mm)]

Front

access

(front con-

trol panel)

26 1/8

(664)

26 1/8

(664)

26 1/8

(664)

28 9/16

(726)

28 9/16

(726)

Side access

(side con-

trol panel)

26 1/8

(664)

26 5/8

(676)

33 5/8

(854)

36 1/4

(921)

36 1/4

(921)

Height

[inches (mm)]

Without

hydronic

option

45 3/4

(1162)

45 3/4

(1162)

57 3/4

(1467)

58 3/4

(1492)

58 3/4

(1492)

hydronic

With

option

55 3/4

(1416)

55 3/4

(664)

69 3/4

(664)

N/A

N/A

NOTICE

Optional return air access panel assembly: Rough
opening to enclosure, and enclosure dimensions
must be sized to accept access panel door frame,
when used. See page 34 for details.

Wall sleeve rough opening — rough opening in wall
for wall sleeve and louver, must be correct dimension and
exact position necessary for installation.

Table 6 VPRC/VPRH rough wall sleeve opening

Model Width [inches (mm)]

09–12 26 1/8 (664) 26 1/8 (664)

18 26 1/8 (664) 26 5/8 (676)

19–24 26 1/8 (664) 33 5/8 (854)

30 28 9/16 (726) 36 1/4 (921)
36 28 9/16 (726) 36 1/4 (921)

Height [inches

(mm)]

Platform

See Figure 7, Page 12 and Figure 10, Page 15 for details of
platform and wall sleeve installation.

Platform height must make bottom of VPRC or VPRH
chassis fl ush with bottom inside edge of wall sleeve.
Platform surface must be ½ inch (13 mm) ABOVE bottom
of wall sleeve rough opening.

Platform dimensions above will allow chassis base pan to
align with bottom of wall sleeve.

Air fi lter

All models must have air fi lter installed prior to operation.
Use chassis-mounted air fi lter provided, unless using. For
optional return air access panel, remove and discard fi lter
from unit and install access panel with supplied fi lter in
place.

P/N 240006980, Rev. R [02/2013] 11 Made in USA

000000

0

ENCLOSURE PREPARATION

Figure 7 Exploded View Of Typical Installation (Chassis shown is typical of models 09–24)

1

30/36 chassis

(models 09–24
shown at right)

6 10

10

1

9

2

5

4

7

3

6

9

The Right Fit for Comfort 12 P/N 240006980, Rev. R [02/2013]

8

ENCLOSURE PREPARATION

Exploded View Of Typical Installation (Chassis shown is typical of models 09–24)

Access opening (for unit insertion/removal) — See unit dimensions in Figures 2, 3, 4, Pages 5-7.
See Table 6, page 11 for minimum recommended opening dimensions. Allow for extra height of
hydronic coil module, if used.

1

2

3

4

5

6

7

8

9

NOTE: Access opening will be in left or right side of enclosure for left or right-side-mounted
control panel units (available option on models 09–24 only).

See Figure 6, Page 11 for minimum clearances around unit to determine minimum enclosure
dimensions.

Wall sleeve opening to outside — See required dimensions in Table 7, Page 11.
Platform (see page 11) — See Figure 10, Page 15 for required platform height. Platform must be

level.
Wall sleeve (see page 14) — Wall sleeve must accommodate total wall thickness (from inside

surface of wall sleeve opening to surface of outside wall).
Outside louver- — Outside louver attaches to wall sleeve with nuts placed on louver studs.

VPRC/VPRH chassis.

Control panel. Access opening must be on same side of unit as control panel. Thermostat
connection terminal block located here

Optional return access panel assembly. See Figure 21, Page 33 for details and dimensions.
Return air opening — VPRC/VPRH requires air fi lter on return air. Filter is located on chassis open-

ing unless optional return air access panel is used (for these applications, air fi lter is removed
from chassis — fi lter is installed on access panel).

10

P/N 240006980, Rev. R [02/2013] 13 Made in USA

Hydronic coil option — See pages 35 to 37.

WALL SLEEVE INSTALLATION

Verify Wall Sleeve Depth

Wall sleeve depth must be suitable for overall wall
thickness. (Figure 8).

Consult manufacturer for available wall sleeves.

• Minimum wall sleeve depth is 6½ inch (165 mm)

overall wall thickness, and available in ½-inch (13­mm) increments for thicker walls.

• Wall thickness less than 6½ inches, wall sleeve will

penetrate into room, and will require interior framing
adaptations for proper fi t.

Verify Openings And Enclosure

• Verify access opening size, wall sleeve opening size and
enclosure size. See page 11.

• Verify wall sleeve opening is square by measuring
corner to corner. Also

• Verify platform (if used) is at correct height and is level
with wall sleeve opening. Adjust platform and framing
as necessary. If opening and platform are not square,
unit will not fi t properly to wall sleeve.

Assemble wall sleeve (09–24 only)

• Models 09–24 are supplied with tabbed-assembly wall
sleeve.

• Follow instructions supplied with wall sleeve to
assemble. Wall sleeve should look like that shown in
Figure 9.

Figure 8 Determining wall sleeve depth

Specify overall wall thickness when
ordering the wall sleeve — it will be
supplied to meet the required depth.

Overall wall
thickness

Foam gasket
1

1

X

/2

inch

/2

(13 X 13mm)

Outdoor louver

Drip edge will extend
outside exterior wall
when installed to
guide condensate
away from building

Lag Holes
(4 on each

side)

VPRC/VPRH Wall
Sleeve Assembly

Exterior
wall

Wall
sleeve

Cross Section of
Typical Wall

Interior
wall

Figure 9 Typical tabbed-assembly wall sleeve

(09–24)

Inside

• Wall sleeves for models 30–36 are factory assembled.

Secure the wall sleeve

• Slide wall sleeve into rough opening.

• Slide wall sleeve to one side of opening, preferably to
side that is most plumb.

• Secure wall sleeve to this side of opening using screws
through lag holes (see Figure 9), verify wall sleeve is
level. Fill any gaps between wall sleeve and opening
with shims to prevent distortion when screws are
tightened.

• Secure wall sleeve to other side in same manner. Verify
wall sleeve is both square and level before tightening
screws.

Lag holes

(4 on each side)

Chassis
studs

Outside View

The Right Fit for Comfort 14 P/N 240006980, Rev. R [02/2013]

TYPICAL CHASSIS AND WALL SLEEVE, INSTALLATION

Figure 10 Typical VPRC/VPRH Installation, With Platform

Platform surface must be ½ inch (13 mm) ABOVE
bottom of wall sleeve rough opening.

*NOTE: If replacing model VPAC/VPHP 30 with VPRC/
VPRH 30 raise platform surface additional 3/8 in.
(10mm) to accommodate new wall sleeve.

To Install Outside Louver

• Install studs on inside of louver. Louvers will pass
through clearance holes in wall sleeve fl ange.

• Place outside louver in position.

• Secure louver by installing nuts (supplied) on studs.

P/N 240006980, Rev. R [02/2013] 15 Made in USA

F

RONT-MOUNTED CONTROL PANEL - CHASSIS AND WALL SLEEVE, INSTALLATION

GENERAL INSTALLATION CONTINUED

Hydronic Coil (Optional)

Figure 11 Foam Gasket & Weather Angles (09–

Install hydronic coil option BEFORE placing chassis in wall
sleeve. See pages 35-37.

Inspect Foam Insulation

Verify foam insulation strips around condenser opening are
intact. Replace if necessary. Foam insulation must be in
place and in good condition to prevent air or water leakage
or air recirculation. See Figure 11 and Figure 12.

Attach Weather Angles

Using screws provided, attach weather angle to each side
of chassis as shown in Figures 11 and 12.

24) Front Control Panel Installations

Supply air connection
(return is in front)

Punch hole through

Back Panel

gasket at lag holes

Foam gasket

Insert Chassis Into Wall Sleeve

• Slide chassis into wall sleeve, verify studs on wall sleeve
slide through holes in back panel and weather angles.

• Attach ¼-20 nuts to studs that pass through weather
angles, each side of chassis.

• DO NOT attach nuts to studs that pass through back
panel of chassis. This would make removal diffi cult.

• Chassis must be fi rmly attached to wall sleeve to
prevent leakage or recirculation.

• See Figure 10, Page 15, for side view of typical
completed installation.

Plenum and Duct Work

1.

Install plenum and duct work to supply air connection,
all models.

2.

Install return air duct work, if applicable (VPRH/VPRC
30–36 only).

3.

For models 09–18, accessory 10-inch round duct collar
is available.

– 1: return air inlet with fi lter installed
– 2: supply air outlet
– 3: optional supply air duct collar, 10-inch

(254mm) round

Foam gaskets
(½ x ½ in)

Mounting holes
(each side only)

Weather angle
(one each side)

Punch holes in foam gaskets at locations of mounting holes
in back panel and weather angles (see call outs in Fig­ure 13 and Figure 14).

Making it easier for wall sleeve studs to pass through holes
when chassis is slid into place.

Figure 12 Foam Gasket & Weather Angles

(30–36) Front Control Panel
Installations

Supply air
connection
(return is in
front)

Back Panel

3

2

1

The Right Fit for Comfort 16 P/N 240006980, Rev. R [02/2013]

Foam gasket

Weather angle
(one each
side)

Mounting
holes (each
side only)

SIDE

-MOUNTED CONTROL PANEL - CHASSIS AND WALL SLEEVE, INSTALLATION

Inspect Foam Insulation

Figure 13 Foam Gasket & Weather Angles

• Verify foam insulation strips around condenser opening
are intact (see Figure 13 and 14). Replace if necessary.

• Foam insulation must be in place and in good condition
to prevent leakage or recirculation.

Insert Chassis Into Wall Sleeve

• Right-side-mounted control panel — remove right
side panel.

• Left-side-mounted control panel — remove left side
panel.

• Slide chassis into wall sleeve, verify studs on wall sleeve
slide through holes in back panel.

• Attach ¼-20 nuts to studs that pass through back
panel.

• Chassis must be fi rmly attached to wall sleeve to
prevent air or water leakage or air recirculation.

Attach Weather Angle

• Right-side-mounted control panel

Foam gasket

Foam gaskets
(½ x ½ in)

Mounting holes
(each side only)

Weather angle
(one each side)

A. Replace right side panel.
B. See Figure 13 for location of right-side weather

angle.

Figure 14 Foam Gasket & Weather Angles

C. Using screws provided, attach weather angle to

chassis. See Figure 14.
D. DO NOT install left-side weather angle.
E. Attach ¼-20 nuts to studs that pass through

weather angle.

• Left-side-mounted control panel
A. Replace left side panel.
B. See Figure 14 for location of right-side weather

angle.

C. Using screws provided, attach weather angle to

chassis. See Figure 14.
D. DO NOT install right-side weather angle.
E. Attach ¼-20 nuts to studs that pass through

weather angle.

• See Figure 9, Page 15, for side view of typical
completed installation.

Supply air

connection

(return is in front)

Punch hole through
gasket at lag holes

Back Panel

(09–24) Right-Side Control Panel
Installations

Right side

panel

Back panel

(09–24) Left-Side Control Panel
Installations

Supply air
connection
(return is in front)

Left side

panel

Punch hole through
gasket at lag holes

Foam gasket

Weather angle
(left side only)

Plenum And Duct Work

• Install plenum and duct work.

Punch holes in foam gaskets at locations of mounting
holes in back panel and weather angles (see call outs
in Figure 13 and 14).

Making it easier for wall sleeve studs to pass through
holes when chassis is slid into place

P/N 240006980, Rev. R [02/2013] 17 Made in USA

Mounting holes in
weather angle

Foam
gasket

CONDENSATE DRAIN

Condensate drain

1.

Models VPRC/VPRH 09,12,19, and 24 are designed
so condensate generated during cooling operation is
delivered to base pan, and picked up by outdoor fan’s
slinger ring.

2.

Condensate is slung onto outdoor coil where it
evaporates. Any excess condensate, or wind driven
rain that enters base pan will overfl ow through notches
located in rear of unit and run out wall sleeve, onto
drip edge, and out of building.

3.

Models VPRH 09,12,19, and 24 are also equipped with
thermostatic drain valve located on bottom of base
pan. Valve opens when outdoor temperatures reach
50°F (10°C), and allows any residual condensate or
wind driven rain in base pan to run out wall sleeve
as stated above. Protects outdoor fan from damage
during heat pump operation.

Figure 15 Drain Stub Location - Models 09–

24 (Optional On Models 09, 12, 19 And
24; Included And Required On Model

18)

4.

Accessory drain stub kit is available for models VPRC/
VPRH 09,12,19,and 24. Optional fi eld installed kit is
designed for use with building’s internal drain system,
and must be installed prior to operation. See Figure
15 for available stub locations on base pan, and
connection size. If unit is equipped with additional
drain stub in base-pan, connect drain stub to building’s
internal condensate removal system.

5.

Model VPRC/VPRH 18 is supplied with drain stub that
must be fi eld installed on unit, and connected to
building’s internal drain system prior to operation. See
Figure 15 for locations on base pan, and connection
size.

6.

Models VPRC/VPRH 30 and 36 are supplied with drain
stub that must be fi eld installed, and connected to
building’s internal drain system prior to operation. See
Figure 16 for location on base pan, and connection
size.

7.

Drain stub must be connected to internal condensate
removal system.

8.

Use of internal condensate drain stub requires
connection to be lower than base pan weep holes,
located near bottom of condenser coil.

Figure 16 Drain Stub Location (Models 30–36)

¾” ID tube connection — front of drain pan

Movable drain stub, ½” ID tube connection may be
located on front, right or left side of unit.
Swap gasketed drain stub plate with blanking plate to
relocate to alternate location.

The Right Fit for Comfort 18 P/N 240006980, Rev. R [02/2013]

ELECTRICAL CONNECTIONS

Electrical Connections

!

WARNING

Electrical shock hazard. Disconnect all power
before removing chassis, performing any cleaning,
servicing, or maintenance. Failure to do so could
result in death or serious injury.

Refer to wiring diagram attached to unit for wiring details.
All fi eld wiring shall conform to requirements of authority

having jurisdiction or in absence of such requirements:

• United States

• National Electrical Code, ANSI/NFPA 70

• Canada

• CSA C22.1 Canadian Electrical Code Part 1.

• Check VPRC/VPRH ratings.

• Installer is responsible for ensuring VPRC/VPRH units
are installed in accordance with all applicable national
and local codes.

• Check rating plate for circuit ampacity.

• Size breaker(s) or fuse size(s) accordingly.

A. Use only HACR type breakers or time delay fuses.
B. Select proper wire for breaker or fuse size used.
C. Some units require more than one power supply.
D. If plug and receptacle are used, check for proper

fi t.

E. Check nameplate and wiring diagram for further

instructions and wire connections.

F. Each unit is equipped for 24v wall thermostat

connection.

Power Cord With Integral Safety Protection

All VPRC/VPRH units that are cord connected to power
supply are equipped with power cord with integral sensor:

• Provides personal shock protection.

• Provides arcing and fi re prevention.

• Senses any damage in line cord and disconnects
power before fi re can occur.

Tested in accordance with Underwriters Laboratories, cord
set also offers unique “passive” operation, unit does not
require resetting if main power is interrupted.

Disconnect Switch (

Disconnect switch ensures all power to control box is
disconnected for servicing, resetting if main power is
interrupted.

• Each power cord must be tested before use. Follow test
instructions in order listed on plug of power supply cord.

• DO NOT use product if power supply cord fails test.

• DO NOT attempt to repair damaged power supply cord.

Replace with new cord from manufacturer only.

Choosing Thermostat

Manufacturer offers choice of single-stage or two-stage
mercury-free thermostat compatible with all models of
VPRC/VPRH. (Use two-stage thermostat for VPRH units
equipped with electric heat option.)

• RetroAire™ thermostats have digital readout with
temperature control range from 45°F (7°C) to 90°F
(32°C).

• When using fi eld sourced thermostat use ONLY 24v
heat/cool thermostat.

Optional)

NOTICE

Cooling-Only With Electric Or Hydronic Heat

only)

VPRC/VPRH units are wired for 230v primary voltage
from manufacturer. Transformer must be rewired by
installer if job site voltage is 208v.

P/N 240006980, Rev. R [02/2013] 19 Made in USA

• Select thermostat compatible with cooling/electric heat
system.

• Thermostat should have “R”, “Y”, “W” and “G”
terminals.

(VPRC

ELECTRICAL CONNECTIONS

Heat Pump With Electric Heat (VPRH only)

Single-Stage Thermostat

Select thermostat compatible with cooling/single stage
heat/heat pump system.

• Thermostat should have “R”, “Y”, “O” and “G” terminals.
RetroAire™ units are single stage heating only.

• Electric heat and heat pump will not operate
simultaneously.

Two-Stage Thermostat

Two-stage heat pump thermostat can be used with VPRH
units.

• See wiring diagram for connections.

• VPRH units are designed to operate as single stage heat
pumps — will alternate between heat pump and electric
heat to meet heat demand.

Thermostat Wiring

The Right Fit for Comfort 20 P/N 240006980, Rev. R [02/2013]

!

FINAL INSPECTION AND START-UP

!

CAUTION

Moving parts can cause injury. Use caution when
testing unit. Failure to do so could result in minor or
moderate injury.

1.

Do not operate unit without fi lter in place or use as
temporary heating/cooling source during construction.

2.

Plug in line cord, if supplied, or hard wire line voltage
power to the unit. Refer to unit rating plate for proper
voltage and amperage/fuse size.

3.

Unit may require two power supplies (check nameplate
and wiring diagram for further instructions.)

4.

Connect low voltage wires from thermostat to unit.
Follow wire diagram for details.

5.

Turn power on and check for proper operation.

Before Operating This Unit:

☐ Read and understand this manual.
☐ Verify electrical supply matches electrical require-

ments of unit, and unit is properly grounded.

☐ Examine control box. Verify all wire connections are

secure, and control board jumpers are in proper
positions. See Page 28.

☐ Verify indoor blower wheels and outdoor fan blades

are secured to their motor shafts.

☐ Ensure all sheet metal panels are in place and se-

cure.

☐ Verify drain stub, if used, is secure to base pan, and

condensate drain is functioning properly.

☐ Verify chassis is properly fi tted to wall sleeve, and

securely mounted to surrounding framing.

Cooling

5.

Set wall thermostat to cool mode. Set thermostat
below room temperature setting.

6.

After few minutes of operation, cool air should
discharge from grilles.

7.

Thermostat can be set at desired setting with selector
switch in heat or cool position.

8.

Verify unit is level.

9.

Check condensate removal by pouring water into base
pan, put unit in cooling mode, with condenser fan
running, see if water is picked up by slinger ring and
thrown onto outdoor coil. (Models VPRC/VPRH 09–24
only)

10.

If condensate is routed to internal drain, verify drain is
functioning properly.

11.

Verify there is nothing interfering with room discharge
air or return air.

Manual Fresh Air Shutter

Manual fresh air shutter allows user to move fresh air into
space to be conditioned. Damper handle is located below
indoor coil on service panel (models 09–24 Only).

Motorized Fresh Air Damper

Motorized damper is used on models 30–36. Damper
operating switch is located on control box. See Figure 5,
Page 10.

Heating

1.

Set wall thermostat to heat mode.

2.

Set thermostat above room setting.

3.

After few minutes of operation, warm air should
discharge from grilles.

4.

Do not operate unit when panels are removed.

P/N 240006980, Rev. R [02/2013] 21 Made in USA

FINAL INSPECTION & START-UP

General

Installation and wiring shall be in accordance with
requirements of authority having jurisdiction In absence of
such requirements refer to:

• USA- National Electrical Code, ANSI/NFPA 70.

• Canada - Canadian Electrical Code, Part I, CSA C22.1:
Safety Standard for Electrical Installations.

Units Rated 208/230V:

• RetroAire unit is wired for 230v primary voltage from

manufacturer.

• Transformer must be rewired by installer if job site

voltage is 208v.

• Change transformer tap from orange to red. See wiring

diagram for details.

Setting Control Board Jumpers

Control board has two sets of factory installed jumper pins
on control board, HP jumper and TEST jumper.

HP Jumper — selects heat pump or straight cooling.
Pins determine whether unit operates as straight cooling or

as heat pump. See Figures 17 and 19.

• Jumper right pin to center pin for heat pump operation.

• Jumper left pin to center pin for straight cooling

operation.

Figure 18 TEST jumper (selects normal or

TEST Jumper

— selects normal or test mode

Figure 17 HP Jumper (selects heat pump or

straight cooling)

Heat Pump Mode

(Jumper center
& Bottom pins)

HP

Straight

Cool Mode

(Jumper center

& Top pins)

HP

test mode)

NOTICE

Do not leave unit operating with TEST jumper in
TEST position.

• Jumper is for testing only. See Figure 18 and 19.

• When jumper pins are jumped together, all timers are

eliminated (example — anti-short cycle, purge, etc.).

• May be used for fi eld testing. Units are factory set with

jumper on only one pin (normal operation position).

Normal operation
(pins not jumped)

Test mode
(pins jumped)

The Right Fit for Comfort 22 P/N 240006980, Rev. R [02/2013]

FINAL INSPECTION & START-UP

Figure 19 Circuit Board

TEST JUMPER

HEAT PUMP

JUMPER

P/N 240006980, Rev. R [02/2013] 23 Made in USA

SEQUENCE OF OPERATION

Initial Power-Up Or Power Restoration

When power is applied, either for fi rst time or after power
failure, board will initialize.

• During initialization, LED1 will be lit continuously for
approximately 5 seconds.

• Following initialization, random-start timer is initiated.
This timer adds randomly selected 5-120 seconds to
start-up sequence, reducing possibility of multiple units
starting at same time.

• Once random start timer has expired, 180-second anti­short-cycle timer is initiated. LED1 blinks two-fl ash
code. (Anti-short-cycle timer prevents compressor
from rapid cycling.)

• After the anti-short-cycle timer expires, LED1 blinks a
one-blink code, indicating normal operation.

Figure 20 Indicator LED1

LED1

Cooling Operation

• If room temperature is above thermostat setting,
reversing valve (VPRH only) will be energized.

• Compressor and outdoor fan will start provided Anti­Short Cycle Timer has timed out from initial power-up,
power restoration or previous compressor on cycle.

• Operation will continue until room temperature
satisfi es thermostat. Once room temperature falls
below set point by 3 ºF (2 ºC), compressor, outdoor
fan motor and reversing valve (VPRH only) will de­energize.

• As soon as compressor is de-energized, anti-short­cycle timer will be initialized and prevent compressor
from starting again for another 180 seconds.

• While anti-short-cycle timer is active, LED1 is set to
blink two-fl ash code.

• After anti-short-cycle timer expires, LED1 is set to
blink one-blink code, indicating normal operation.

Mechanical Heating (VPRH only)

• If outdoor coil temperature remains above 25°F
(-4°C), compressor and outdoor fan will start provided
anti-short-cycle timer has timed out from initial power­up, power restoration or previous compressor on
cycle. Operation will continue until room temperature
satisfi es thermostat.

• Once room temperature rises above set point by 3 °F
(2°C), compressor and outdoor fan motor will de­energize.

• As soon as compressor is de-energized, anti­short-cycle timer will be initialized and will prevent
compressor from starting again for another 180
seconds. While anti-short-cycle timer is active, LED1
blinks two-fl ash code. After anti-short-cycle timer
expires, LED1 fl ashes one-blink code, indicating
normal operation.

Auxiliary Heating

• If outdoor coil temperature falls to 25°F (-4°C) or

Fan Operation

Some thermostats are equipped with auto/on fan switch.

• When switch is placed in on position indoor fan will run
continuous.

• When switch is in auto position indoor fan will cycle
with call for heating or cooling.

• Fan purge (auto mode only) — after room thermostat
has been satisfi ed, purge feature allows indoor fan
to remain on for additional 60 seconds. Increases

effi ciency by pulling remaining energy from unit.

The Right Fit for Comfort 24 P/N 240006980, Rev. R [02/2013]

below for 180 seconds during heating call, compressor
and outdoor fan motor will be de-energized and
auxiliary heat will be energized.

• Anti-short-cycle timer will be initiated, prohibiting
compressor operation for 180 seconds.

• LED1 will fl ash three-blink code, indicating auxiliary
heat operation. Heating operation with auxiliary heat
will continue until outdoor coil sensor reaches 50°F
(10°C).

Hydronic Heating

• With call for heat, signal from processor board will
activate water or steam valve and indoor fan.

• Signal to water or steam valve will continue until room
temperature rises above set point by 3°F (2°C).

MAINTENANCE

!

WARNING

Electrical shock hazard. Disconnect power to
VPRC/VPRH before servicing or accessing control
compartment. Failure to do so could result in severe
personal injury or death.

NOTICE

Perform regular service and maintenance by
qualifi ed service agency at least once every 12
months to assure safe, trouble free operation and
maximum effi ciency .

NOTICE

Verify proper operation after servicing.

Maintenance Schedule

Manufacturer recommends performing following
inspections and maintenance on monthly basis. Units
installed in harsh or dirty environments will require more
frequent inspections and maintenance.

Disconnect power to unit and remove necessary access
panels:

☐ Clean or replace indoor air fi lter.
☐ Inspect chassis interior for rodent or insect

infestation. Clean if necessary.

☐ Clean & fl ush condensate drain pan and chassis

base pan.

Repair if necessary.

Seasonal Start-Up And Maintenance

Beginning of cooling and heating seasons, complete
mechanical check should be performed and maintenance/
inspections performed as described below.

Disconnect power to unit and remove necessary access
panels:

1.

Remove access panel. Visually inspect equipment.
Look for obvious changes in unit such as damaged coils
or evidence of extended wear on any moving parts.

2.

Check for unusual odors or leaks (examples: burnt
motor windings, water, or refrigerant). Verify base pan
is clean.

3.

Clean or replace return air fi lter as needed. Allowing
dust to collect on fi lter. Check fi lter at least once
month. Some environments may require more frequent
replacement, depending on particulate in air stream.

4.

Inspect all electrical connections for frayed wires and
poor connections.

5.

Check fan motors and blower assemblies. Verify screws
and motor mounting hardware are tight.

6.

Centrifugal fan blades and blower cage brush and/or
vacuum as necessary.

7.

Inspect both indoor and outdoor coils. Use fi n comb to
straighten out any damaged fi ns.

NOTICE

Do not use solvent based cleaner to clean coils,
some solvents will produce noxious odor when unit
is in operation.

☐ If applicable, verify condensate drain is functioning

properly.

☐ Inspect refrigeration tubing, especially braze joints,

for signs of refrigerant leaks (oil residue). Repair
if necessary.

☐ Inspect indoor and outdoor coils. Verify dirt or debris

have not collected on fi ns. Clean if necessary . T ake
care not to damage coil fi ns when cleaning. Use fi n
comb to straighten any bent fi ns.

☐ Examine control box. Verify all wire connections are

secure.

☐ Verify indoor blower wheels and outdoor fan blades

are secured to their motor shafts.

☐ Verify dirt or debris have not collected on indoor

blower wheels and outdoor fan blades. Use vacuum
and soft brush to clean if necessary.

☐ Verify any ductwork connected to unit is secure and

free of air leaks.

☐ If unit has hydronic option installed, inspect piping,

especially braze joints, for signs of water leaks.

8.

Look for oil leaks or stains on or around all braze joints
and refrigerant lines. Presence of oil here indicates
potentially serious problem (such as refrigerant leak).

9.

Inspect and clean drain pan and drain line(s). Use of
anti-fungicide tablet to keep condensate system free
from bacterial contaminants is recommended.

10.

Verify unit is level for proper operation. Building and
equipment may settle, causing shift in direction of
condensate fl ow. (Note that bottom of wall sleeve is
pitched downward to shed water to outside. Verify any
shifting does not interfere with proper drainage.)

11.

Verify weep holes along rear fl ange of base pan are
free of debris.

12.

Verify seal around unit is not broken or damaged.

13.

Air leaks may make the conditioned area
uncomfortably drafty or produce noises. Visually
inspect foam gasket between wall and unit, taking
note of separation between air inlet for condenser
and condenser coil discharge. These two areas must
be sealed off from each other. If you experience poor
cooling operation or erratic operation, check for air
recirculation at condenser coil.

14.

Replace access panels and reconnect electrical power.

P/N 240006980, Rev. R [02/2013] 25 Made in USA

TROUBLESHOOTING

!

WARNING

Electrical shock hazard. Disconnect power to unit
before servicing or accessing control compartment.
Failure to do so could result in severe personal
injury or death.

Symptom Suggestion

No heat or cooling • Check to see if unit has power and if thermostat is satisfi ed. If

thermostat is not satisfi ed, call your installing contractor or service
contractor.

Thermostat calls for cooling,
but cool air is not coming out of
unit.

Light on circuit board is
blinking.

Circuit board light is blinking 3
or 4 times, but there is no freeze
condition.

Thermostat is satisfi ed, but fan
is still running.

Thermostat calls for heat, but no
heat comes out of unit.

Thermostat calls for heat while in
heat pump mode, but heated air
is not coming out of unit.

• Check for continuity between thermostat and unit. Verify 24V ac is present
across terminals C and R.

• Verify high pressure switch located in outdoor section has not been tripped.
If tripped, press switch button to restart compressor.

• Some units are equipped with LCDI (Leakage current detection interrupt)
line cord. Verify this line cord is reset by pressing reset button at line
cord plug.

• Note: If evaporator fan is operational and all of above suggested
procedures have been followed, and there is still no cooling being supplied
by unit, contact trained heating and cooling professional.

• Circuit board uses light for diagnostic purposes. Blinking codes are as
follows:

– 1 blink = normal operation
– 2 blinks = compressor lockout (ASCT — Anti-short cycle timer)
– 3 blinks = outdoor freeze condition
– 4 blinks = indoor freeze condition
– 5 blinks = simultaneous Y and W call (Straight cool units only)

• Verify sensors have not been damaged. R emove sensor wires from control
board and make resistance measurements, compare to following sensor
resistances. Indoor and outdoor coil sensor wires are labelled, as is control
board.

– 77 °F = 10KOhms
– 50F = 19.9KOhms
– 35F = 30KOhms
– 30F = 34.4KOhms

• If thermostat is set to auto mode, once thermostat is satisfi ed, fan will
stay energized for extra 60 seconds to purge unit of excess cool or warm
air in plenum.

• If thermostat fan switch is set to ON, fan will stay energized regardless
of whether thermostat is satisfi ed or not. Only way to turn fan off is to
turn unit off or turn thermostat fan switch to AUTO.

• Units equipped with electric heaters have temperature limit switch to
prevent electric heater from reaching unsafe temperatures. If after calling
for heating, heater is not energized, check for continuity across limit. If
limit is open, replace if with equivalent limit switch.

• Verify unit has power or thermostat has been satisfi ed. If unit has power
and thermostat is satisfi ed, turn thermostat few degrees above room
temperature.

• Verify LCDI line cord has not tripped. (See Page 19.)

• While in heat pump mode, verify thermostat is not energizing O terminal.
Retroaire units are designed to work in heat pump mode when 24vac
is present across Y and C. Verify heat pump jumper on control board
is jumping two pins labeled “HP” (see control board jumper locations,
Figure 17, Page 22).

• Verify there are no freeze conditions. Refer to blinking codes question
above for more information.

Have qualifi ed technician conduct troubleshooting
procedures.

NOTICE

The Right Fit for Comfort 26 P/N 240006980, Rev. R [02/2013]

TROUBLESHOOTING

Indoor Motor Speed Tap Selection

• For information on indoor motor speed tap selection,
please refer to “Indoor Motor Speed Tap Selection
Chart” label attached to chassis of VPRC/VPRH
(Table 8).

• Models’ VPRC/VPRH 09–36 motors are factory-wired
for corresponding units as described in 230V column
Table 8.

• Make speed tap changes as required by job site
voltage and/or external static pressure (ESP).

• Speed tap changes may need to be changed from
manufacturer settings. Manufacturer will not be liable
for any system problems that could arise if motor
speed is not changed to match application.

Table 7 VPRC/VPRH Indoor motor speed tap

selection chart

Model

09

12

18, 19,

24

30

36

Tap Key — Red (Low) — Blu (Med) — Blk (High)

ESP

In. w.c. (mm

w.c.)

0.1 (3)

0.2 (5)

0.3 (8) Blu

0.1 (3)

0.2 (5)

0.3 (8) Blk

0.1 (3)

0.3 (8)

0.1 (3)

0.2 (5)

0.3 (8)

0.1 (3)

0.3 (8)

230V 208V 197V

Red

Blu

Blk Blk Blk0.2 (5)

Blu Blu

Blk Blk Blk0.2 (5)

Red

Blu

Red

Blu
Blu
Blk

Blu
Blk

P/N 240006980, Rev. R [02/2013] 27 Made in USA

ELECTRICAL SPECIFICATIONS

Table 9 Legend For Electrical Specifi cations

FLA

H-WIRE

HA

Hp

Htr #

IFM

LRA

Max

MCA

Full Load Amps

Hard Wired

Heater Amps

Horse Power

Heater Option Number (see Figure 1)

Indoor Fan Motor

Locked Rotor Amps

Maximum

Maximum Circuit Ampacity

Min

MOCP

OFM

RLA

TCA

THA

Volt

W

Minimum

Maximum Over current Protection Device
Amps
(HACR-type breakers or time-delay fuses)

Outdoor Fan Motor

Rated Load Amps

Total Cooling Amps

Total Heating Amps

Voltage

Watts

Table 8 NEMA Specifi cations Non-Locking/Receptacles

The Right Fit for Comfort 28 P/N 240006980, Rev. R [02/2013]

ELECTRICAL SPECIFICATIONS

Table 10 VPRC/VPRH 09 Electrical Specifi cation

Power

Supply

Volt —

1–60

Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug

208/

230V

265V 240 3.32 18.8 0.56 0.07 1.2 0.125

Compressor

197 3.9 20 0.80 0.07 0.72 0.125

* THA value applies to hydronic heat only, Htr #8.

Indoor

Fan Motor

Outdoor

Fan Motor

Electric Heat Unit Electrical Ratings

0 or 8

3

4

5

0 or 8

2

3

4

208 N/A N/A
230 N/A N/A
208 2454 11.8 12.6 15.7
230 3000 13.0 13.8 17.3
280 3271 15.7 16.5 20.7
230 4000 17.4 18.2 22.7
208 4089 19.7 20.5 25.6
230 5000 21.7 22.5 28.2
265 N/A N/A
277 N/A N/A
265 2655 10.0 10.58 13.2
277 2901 10.5 11.03 13.8
265 3752 14.2 14.72 18.4

277 4100 14.8 15.36 19.2
265 4576 17.3 17.83 22.3

277 5000 18.1 18.61 23.3

0.8* 6.4 15 6–15P

5.42

0.56 6.0

5.08

20 6–20P

25 6–30P

30 6–30P

15

H-WIRE

20

25

Table 11 VPRC/VPRH 12 Electrical Specifi cations

Power Supply

Volt — 1–60

Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug

208/

230V

**208/

230V

265V 240 4.6 20 0.56 0.07 1.2 0.125

Compressor

197 5.2 27 0.80 0.07 0.7 0.09

197 5.1 24 0.80 0.07 0.7 0.09

Indoor Fan

Motor

Outdoor

Fan Motor

Electric Heat Unit Electrical Ratings

0 or 8

0 or 8

0 or 8

208 N/A N/A
230 N/A N/A
208 2454 11.8 12.6 15.7

3

230 3000 13.0 13.8 17.3
280 3271 15.7 16.5 20.7

4

230 4000 17.4 18.2 22.7
208 4089 19.7 20.5 25.6

5

230 5000 21.7 22.5 28.2
208 N/A N/A
230 N/A N/A
208 2454 11.8 12.6 15.7

3

230 3000 13.0 13.8 17.3
280 3271 15.7 16.5 20.7

4

230 4000 17.4 18.2 22.7
208 4089 19.7 20.5 25.6

5

230 5000 21.7 22.5 28.2
265 N/A N/A
277 N/A N/A
265 2655 10.0 10.58 13.2

2

277 2901 10.5 11.03 13.8
265 3752 14.2 14.72 18.4

3

277 4100 14.8 15.36 19.2
265 4576 17.3 17.83 22.3

4

277 5000 18.1 18.61 23.3

0.8* 8.1 15 6–15P

6.7

0.8* 7.9 15 6–15P

6.6

0.56 7.6

6.36

20 6–20P

25 6–30P

30 6–30P

20 6–20P

25 6–30P

30 6–30P

15

H-WIRE

20

25

** Compressor subject to availability (REV. “B”)

P/N 240006980, Rev. R [02/2013] 29 Made in USA

ELECTRICAL SPECIFICATIONS

Table 12 VPRC/VPRH 18 Electrical Specifi cations

Power

Supply

Volt 1–60

Compressor

Indoor Fan

Motor

Outdoor

Fan Motor

Electric Heat Unit Electrical Ratings

Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug

208 N/A N/A
230 N/A N/A
208 2454 11.8 12.8 16.0

3

230 3000 13.0 14.0 17.6
280 3271 15.7 16.7 20.9

4

230 4000 17.4 18.4 23.0
208 4089 19.7 20.7 25.8

5

230 5000 21.7 22.7 28.4

1.0* 10.0 15 6–15P

8.3

6.86 8.4 15

265 3752 14.2 14.7 18.4 20

3

277 4100 14.8 15.4 19.2 20
265 4576 17.3 17.8 22.3 25

4

277 5000 18.1 18.6 23.3 25

6.86

208/

230V

197 6.5 43 1.0 0.15 0.8 0.125

265V 240 5.8 46 0.56 0.07 0.5 0.17

0 or 8

0 or 8 265 N/A N/A

* THA value applies to hydronic heat only, Htr #8.

20 6–20P

25 6–30P

30 6–30P

H-Wire

Table 13 VPRC/VPRH 19 Electrical Specifi cations

Power Supply

Volt — 1–60

Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA TCA THA MCA MOCP Plug

208/

230V

265V 240 7.1 43 1.3 0.25 1.3 0.25

Compressor

197 7.3 48 1.5 0.25 1.30 0.25

Indoor Fan

Motor

Outdoor Fan

Motor

Electric Heat Unit Electrical Ratings

0 or 8

0 or 8 265 N/A N/A

208 N/A N/A

230 N/A N/A

208 2454 11.8 13.3 16.6

3

230 3000 13.0 14.5 18.2

280 3271 15.7 17.2 21.5

4

230 4000 17.4 18.9 23.6

208 4089 19.7 21.2 26.4

5

230 5000 21.7 23.2 29.0

208 5725 27.5 29.0 36.3

7

230 7000 30.4 31.9 39.9

208 8178 39.3 40.8 51.0

1

230 10,000 43.5 45.0 56.2

265 3752 14.2 15.5 19.3 20

3

277 4100 14.8 16.1 20.1 25

265 4576 17.3 18.6 22.3 25

4

277 5000 18.1 19.4 24.2 25

265 6635 25.0 26.3 32.9 35

7

277 7250 26.2 27.5 34.3 35

265 9152 34.5 35.8 44.8 50

1

277 10,000 36.1 37.4 46.8 50

1.5* 14.6 15 6–15P

10.1

9.7 11.5 15

6.86

20 6–20P

25 6–30P

30 6–30P

40

60

H-Wire

* THA value applies to hydronic heat only, Htr #8.

The Right Fit for Comfort 30 P/N 240006980, Rev. R [02/2013]

ELECTRICAL SPECIFICATIONS

Table 14 VPRC/VPRH 24 Electrical Specifi cations

Power
Supply
Volt —

1–60

Volt Min RLA LRA FLA Hp FLA Hp

208/

230V

265V 240 8.0 46 1.3 0.25 1.3 0.25

Compressor

197 9.4 54.0 1.5 0.25 1.30 0.25

Indoor

Fan

Motor

Outdoor

Fan

Motor

Electric Heat Unit Electrical Ratings

Htr

Volt W HA TCA THA MCA MOCP Plug

#

208 N/A N/A

0 or

8

230 N/A N/A
208 2454 11.8 13.3 16.6

3

230 3000 13.0 14.5 18.2
280 3271 15.7 17.2 21.5

4

230 4000 17.4 18.9 23.6
208 4089 19.7 21.2 26.4

5

230 5000 21.7 23.2 29.0
208 5725 27.5 29.0 36.3

7

230 7000 30.4 31.9 39.9
208 8178 39.3 40.8 51.0

1

230 10,000 43.5 45.0 56.2

0 or

265 N/A N/A

8

265 3752 14.2 15.5 19.3 20

3

277 4100 14.8 16.1 20.1 25
265 4576 17.3 18.6 23.2 25

4

277 5000 18.1 19.4 24.2 25
265 6635 25.0 26.3 34.3 35

7

277 7250 26.2 27.5 34.0 35
265 9152 34.5 35.8 44.8 50

1

277 10,000 36.1 37.4 46.8 50

1.5* 14.6 20 6–20P

12.2

9.7 11.4 15

6.86

20 6–20P

25 6–30P

30 6–30P

40

60

H-Wire

* THA value applies to hydronic heat only, Htr #8.

P/N 240006980, Rev. R [02/2013] 31 Made in USA

ELECTRICAL SPECIFICATIONS

Table 15 VPRC/VPRH 30 Electrical Specifi cations

Power

Supply

Volt —

1–60

Volt Min RLA LRA FLA Hp FLA Hp

208/

230V

265V 240 10.5 67 2.3 1.4

Compressor

197 13.0 74 3.0

* THA value applies to hydronic heat only, Htr #8.

Indoor Fan

Motor

0.5

Outdoor

Fan Motor

1.3

0.25

Electric Heat Unit Electrical Ratings

Htr

Volt W HA TCA THA MCA MOCP Plug

#

208 N/A N/A

0

230 N/A N/A
208 4089 19.7 22.7 28.4 30

5

230 5000 21.7 24.7 31.0 35
280 6134 29.5 32.5 40.7

7

230 7500 32.6 35.6 44.5
208 8178 39.3 42.3 52.9 60

1

230 10,000 43.5 46.5 58.1 60

0 265 N/A N/A

265 4576 17.3 19.6 24.5 25

4

277 5000 18.1 20.4 25.5 30
265 6864 25.9 28.2 35.3 40

7

277 7500 27.1 29.4 36.8 40
265 9152 34.5 36.8 46.1 50

1

277 10,000 36.1 38.4 48.1 50

N/A 20.6 30

17.3

14.2 16.8 25

6.86

45

H-WIRE

Table 16 VPRC/VPRH 36 Electrical Specifi cations

Power

Supply

Voltage —

1/60

Volt Min RLA LRA FLA Hp FLA Hp Htr # Volt W HA* TCA THA* MCA* MOCP* Plug

208/

230V

265V 240 12 67 2.3 1.4

Compressor

197 13.6 88 3.0

Indoor

Fan

Motor

0.5

Outdoor

Fan Motor

1.3

0.25

Electric Heat Unit Electrical Ratings

208 N/A N/A

0

230 N/A N/A N/A
208 4089 19.7 22.7 28.4 30

5

230 5000 21.7 24.7 31.0 35
280 6134 29.5 32.5 40.7

7

230 7500 32.6 35.6 44.5
208 8178 39.3 42.3 52.9 60

1

230 10,000 43.5 46.5 58.1 60
208 12,268 19.7 / 39.3 22.7 / 39.3 28.4 / 49.2 30 / 50

A

230 15,000 21.7 / 43.5 24.7 / 43.5 31.0 / 54.4 35 / 60

0 265 N/A N/A

265 4576 17.3 19.6 24.5 30

4

277 5000 18.1 20.4 25.5 30
265 6864 25.9 28.2 35.3 40

7

277 7500 27.1 29.4 36.8 40
265 9152 34.5 36.8 46.1 50

1

277 10,000 36.1 38.4 48.1 50
265 13,729 17.3/34.5 19.6/34.5 24.5/43.2 30/45

A

277 15,000 18.1/36.1 20.4/36.1 25.5/45.2 30/50

17.9

15.7

N/A

14.2 16.8 25

* — Where two values are shown, data is displayed as Circuit 1 / Circuit 2

21.3 30

* THA value applies to hydronic heat only, Htr #8.

45

H-WIRE

The Right Fit for Comfort 32 P/N 240006980, Rev. R [02/2013]

OPTIONAL - RETURN AIR ACCESS PANEL

Optional Return Air Access Panel (With

Filter)

• Verify installation will provide adequate clearance and
access to control panel.

• Work closely with other trades to locate opening for

NOTICE

Install air fi lter installed prior to operation.

return air access panel.

• Return air access panel must be installed with enough
room available to remove unit if necessary.

• Install frame with screws through lag holes into frame
studs, level and plumb (Figure 21).

• Return air access panel is set onto frame, and held in
place with 6 screws.

Figure 21 Return Air Access Panel (Available with solid doors if ducted return air is used;

available in standard white or consult manufacturer for custom colors)

Return air access panel part numbers

(includes items 2, 5 and 6 below)

09–18 Part # 240003010C
19–24 Part # 240003013C
30–36 Part # 240004439C

Table 17 Return Air Access Panel Dimensions — Inches (mm)

Model A B C D E F G H J K Item Description

Solid door panel (for ducted return air installations)

1

2

Door assembly, front view

Door assembly, rear view

3

4

Filter bracket (on back)

09–18 Std.

19–24 Std.

29 3/4

(756)28(711)

29 3/4

(756)

28

(711)

49 3/4

(1264)30(762)

61 3/4

(1569)

30

(762)

17 3/4

(451)

28

(711)

20 1/4

(514)

20 1/4

(514)

20

(508)

30

(762)

20

(508)50(1270)

20

62

(508)

(1518)

477/8

(1220)

597/8

(1518)

(O.D.)

Frame assembly (items 5a are lag holes, 3 per side)

5

6

Filter

30–36 Std.

35 7/8

(911)

341/8
(864)

62

(1575)

36 7/8

(918)

17 5/8

(448)

33

9

/16

(852)

30

(762)

20

(508)

62

3/16

60

(1524)

P/N 240006980, Rev. R [02/2013] 33 Made in USA

OPTIONAL - HYDRONIC COIL

HH Series Hydronic Coil Option

7.

(Available for VPRC / VPRH models 09-24 only)

Install Hydronic Coil option to unit BEFORE placing chassis

8.

in wall sleeve.

1.

Coil package includes sheet metal enclosure.

2.

2- or 3-way motorized 24v water valve is available
(models 09–24 only).

3.

Verify hydronic coil package is left, right or front

System duct work is connected to discharge opening on
duct collar or plenum. Flex collar is advised.

aligned, matching control section alignment of unit on
which it is to be installed.

4.

Coil package must be centered on top of VPRC/VPRH
chassis. Verify it is centered over fan discharge and
piping package is in correct position.

5.

Two “Z” mounting brackets are used to clamp hydronic
enclosure to chassis top. Mount brackets to chassis top
using holes provided. Allows chassis to be removed for
service/maintenance without disturbing hydronic pack­age.

6.

Complete piping of hydronic package, including fi eld
supplied shut off valves and other fi eld supplied items.

Install threaded rods through slots in brackets (Figure

23), place washer and nut on threaded rod, tighten
nut. Secure upper end of threaded rod to angle iron or
2 x 4 inch (51 x 102 mm) wood.

Verify rods do not interfere with chassis plenum or
duct work. Rods hold the hydronic package in place
when chassis is removed for maintenance.

Figure 22 Hydronic Coil Dimensions

Dimensions — Inches (mm)

Models A B C C1 D E F G H J K

9–18

13

(330)8(203)19(483)17(432)

10

(254)

Diameter

18

(457)9(229)

½

(13)

10

(254)5(127)1½(38)

19–24

17

(432)12(305)23(533)21(533)

10

(254)

Diameter

22

(559)11(279)

½

(13)

13

(330)6½(165)1½(38)

The Right Fit for Comfort 34 P/N 240006980, Rev. R [02/2013]

OPTIONAL - HYDRONIC COIL

Figure 23 Hydronic Coil Option (front/right application shown)

1.

10-inch round (254 mm) duct collar

2.

Chassis top panel

3.

Z brackets (factory-supplied)

4.

Z bracket mounting screws (included)

5.

Freezestat

6.

Freezestat setpoint adjustment screw

7.

½ x ½ inch foam gasket

8.

Mounting rods (fi eld-supplied & installed), 5/16-18 all-
thread

9.

5/16-inch nuts (fi eld-supplied & installed)

10.

Optional ball valves and P/T ports — includes (2) ball
valves and (2) P/T ports

11.

Optional automatic balancing valves (with dual P/T
ports)

12.

½-inch copper piping (factory-assembled when valve
option is specifi ed)

13.

Bleed valve

P/N 240006980, Rev. R [02/2013] 35 Made in USA

14.

Return line automatic balancing valve, with drain cock
in y.

15.

Supply line automatic balancing valve

16.

Flanges and nuts — fl ange is factory-installed with this
option; automatic balancing valves are shipped with
the HH, and are fi eld installed

17.

P/T ports

18.

Optional 3-way motorized diverting valve (normally
closed), factory piped as shown when ordered

19.

Plug with wires to motorized valve (factory-wired to
valve when valve is ordered)

20.

Plug with wires to freezestat (factory-wired to freeze
stat)

21.

Optional ball valves

OPTIONAL - HYDRONIC COIL

Figure 24 VPRC/VPRH Hydrocoil Specifi cations (Entering Air Temperature on 70°F, dry bulb/58°F,

wet bulb)

Unit Size CFM (L/s) GPM (L/s)

1 (0.163)

2 (0.126) 8400 2.46 4.0
3 (0.189) 8900 2.61 8.7
1 (0.163)

09 300 (142)

12 400 (189)

18 500 (236)

19 700 (330)

24 700 (330)

Note 1

Head loss data above is for hydronic coil only. The optional motorized 3-way valve has a Cv of 4.0; the optional
AutoFlow valves have a Cv of 7.0 at full open.

2 (0.126) 10900 3.19 3.9
3 (0.189) 11500 3.37 8.6
1 (0.163)
2 (0.126) 13500 3.95 3.9
3 (0.189) 14200 4.16 8.4
1 (0.163)
2 (0.126) 9800 2.87 4.0
3 (0.189) 10400 3.05 8.7
1 (0.163)
2 (0.126) 12700 3.72 3.9
3 (0.189) 13500 3.95 8.6
1 (0.163)
2 (0.126) 15700 4.60 3.9
3 (0.189) 16600 4.86 8.4
2 (0.126)
4 (0.252) 12200 3.57 15.2
6 (0.379) 12700 3.72 33.2
2 (0.126)
4 (0.252) 15800 4.63 14.9
6 (0.379) 16400 4.80 32.6
2 (0.126)
4 (0.252) 19400 5.68 14.7
6 (0.379) 20100 5.89 32.0
2 (0.126)
4 (0.252) 28400 8.32 8.4
6 (0.379) 30300 8.87 18.5
2 (0.126)
4 (0.252) 36700 10.75 8.3
6 (0.379) 39200 11.48 18.2
2 (0.126)
4 (0.252) 45100 13.21 8.2
6 (0.379) 48100 14.08 17.9
2 (0.126)
4 (0.252) 28400 8.32 8.4
6 (0.379) 30300 8.87 18.5
2 (0.126)
4 (0.252) 36700 10.75 8.3
6 (0.379) 39200 11.48 18.2
2 (0.126)
4 (0.252) 45100 13.21 8.2
6 (0.379) 48100 14.08 17.9

Entering H2O

Temp F C

140 (60)

160 (71.1)

180 (82.2)

140 (60)

160 (71.1)

180 (82.2)

140 (60)

160 (71.1)

180 (82.2)

140 (60)

160 (71.1)

180 (82.2)

140 (60)

160 (71.1)

180 (82.2)

Btu/h (kW)

7300 2.14 1.1

9500 2.78 1.1

11800 3.46 1.0

8300 2.43 1.1

10800 3.16 1.1

13400 3.92 1.0

10900 3.19 4.0

14200 4.16 3.9

17500 5.12 3.9

23800 6.97 2.2

30900 9.05 2.2

38000 11.13 2.2

23800 6.97 2.2

30900 9.05 2.2

38000 11.13 2.2

Head Loss, Ft/H2O

(see note 1)

The Right Fit for Comfort 36 P/N 240006980, Rev. R [02/2013]

OPTIONAL CARRIER 50QT/ET REPLACEMENT — INSTALLATION

Condenser Louver Replacement

• Existing Carrier wall sleeve can be retained in all
applications, provided VPRC/VPRH unit is installed as
required for 50QT/ET option.

• Condenser louver must be modifi ed or replaced unless
it is aluminum vertical-bar type with no plastic or
metal block-off as shown in Figure 25. Two other
louver types are used on Carrier units.

• If you have aluminum vertical bar type louver with
metal or plastic block-off (Figure 26), remove block-off
for louver to function with VPRC/VPRH or use louver
provided with VPRC/VPRH.

• If louver is stamped sheet metal (Figure 27), it must
be removed and replaced with standard VPRC/VPRH
louver provided with unit or warranty will be voided.
Modify the louver application as needed for proper fi t
and function of VPRC/VPRH.

Installing VPRC/VPHC Into An Existing
Wall Sleeve/Enclosure

• Replacing another manufacturer’s unit with VPRC/
VPRH chassis requires certain modifi cations due to unit
installation into existing wall sleeve and enclosure.

• Installer is responsible for proper installation practices
when installing VPRC/VPRH in existing wall sleeve/
enclosure.

• Manufacturer will not be responsible for installation
when accessories not included in supplied installation
package are used.

!

DANGER

Electrical shock hazard — Verify power to existing
unit (Carrier 50QT/ET) is disconnected before
removing. Failure to do so will result in severe
personal injury or death.

Figure 25 Aluminum Vertical Bar Louver

Without Block-Off, Can Be Used
With The VPRC/VPRH as is

Figure 26 Aluminum Vertical Bar Louver

With Block-Off, Block-Off Must Be
Removed To Use With VPRC/VPRH

Removing the metal or
plastic block-off usually
only requires drilling
out a few pop rivets
and is generally an
easy task.

Figure 27 Stamped Metal Louver

Cannot Be Used With The VPRC/
VPRH — Use Standard Louver
Shipped With VPRC/VPRH,
Adapting Installation As Needed
For Fit And Function

For proper installation into existing wall sleeve/enclosure,
complete following steps as listed.

1.

Remove existing Carrier 50QT/ET unit from wall
sleeve.

2.

Inspect wall sleeve. Verify it is free of dirt or debris
and is in good condition. If condition is beyond repair,
it must be replaced.

NOTICE

Carrier series use internal drain system. Verify
existing drain system is in working condition and
able to move condensate freely.

P/N 240006980, Rev. R [02/2013] 37 Made in USA

OPTIONAL CARRIER 50QT/ET REPLACEMENT — INSTALLATION

VPRC/VPRH Models 09–12 only

1.

Attach three baffl es included in chassis kit to back of
condenser coil. See Figure 29.

VPRC/VPRH Model 18

1.

Installer must fabricate and install air diverter to
separate inlet and discharge outdoor air.

2.

Diverter must extend to condenser louvers. Failure to
do so will create air recirculation between condenser
discharge and intake creating compressor failure due
to continued operation at high pressures, as well as
decreasing unit’s capacity and effi ciency from rated
values.

Models 09–18

3.

Install provided drain stub on unit’s base at front. See
Figure 14, Page 18. Do not mount drain stub on side,
unit inserts too deeply into Carrier wall sleeve. (If this

location is not acceptable, contact manufacturer for
alternatives.) Connect drain stub to suitable drain.

4.

Insert VPRC/VPRH chassis 13 inches (330 mm) into
wall sleeve. Verify it is level. When unit is in position,
fasten in place permanently by mechanical means.
Shimming chassis into position (i.e., by using wooden
platform). If unit is completely removed, re-level to
ensure proper condensate drainage.

5.

Verify seal is air tight between chassis and existing
wall sleeve around condenser section. Manufacturer
recommends using expandable foam or closed cell
foam to create seal, preventing air bypass around
chassis adversely affecting effi ciency, operation, and
reliability of unit. Seal also prevents inclement weather
from entering wall sleeve/interior of building.

6.

Install high and low voltage wiring to VPRC/VPRH unit.
Refer to wiring diagram on the for wire connections.

7.

Connect supply air ductwork to VPRC/VPRH unit.

8.

Turn power on to unit.

9.

Confi rm operation by cycling unit several times, verify
operation.

10.

Replace all trim and components.

NOTICE

Level chassis so condensate or wind-driven
rain will fl ow from base pan. Installer, test and
confi rm condensate fl ow into drain. Manufacturer
recommends pouring water into base pan prior to
operating unit to verify drain is operating properly.

Figure 28 Model 18 Add Diverter Extension

Add extension from separator
baffl e to outside louver.

Use foam gaskets or other means
to ensure tight seal. Required to
prevent outdoor air recirculation
inside existing wall sleeve.

Figure 29 Baffl es On Back Of Condenser Coil

Top Baffl e

Left

Baffl e

The Right Fit for Comfort 38 P/N 240006980, Rev. R [02/2013]

Right

Baffl e

Condenser Coil

OPERATIONAL PERFORMANCE DATA

Table 18 VPRC/VPRH 09–36 Performance Data

INSTALLATION FOR NEW CONSTRUCTION

Model

Cooling

Btuh (kW)

Sensible

Heat
Ratio

EER

Heat Pump

Btuh (kW)

COP

Air Flow vs External Static Pres-

0.10 in.
w.c.

(2.5 mm

w.c.)

sure

Static Pressure

0.20 in.
w.c.

(5.1 mm

w.c.)

0.30 in.

(7.6 mm

w.c.)

w.c.

Fresh

Air
Inlet
Flow

Outdoor

Sound

Level

VPRC09

VPRH09

VPRC12

VPRH12

VPRC18

VPRH18

VPRC19

VPRH19

9,000

(2.64)

9,000

(2.64)

12,000

(3.51)

12,000

(3.51)

17,200

(5.04)

17,200

(5.04)

18,400

(5.39)

18,400

(5.39)

CFM (L/s) CFM (L/s) CFM (L/s)

0.75 9.0 N/A N/A 330 (156) 300 (142) 250 (118)

0.75 9.0 9,000 (2.64) 3.0 330 (156) 300 (142) 250 (118)

0.70 9.0 N/A N/A 440 (208) 385 (182) 350 (165)

0.70 9.0

0.71 9.0 N/A N/A 600 (283) 550 (260) 500 (236)

0.71 9.0

0.73 9.0 N/A N/A 710 (335) 650 (307) 600 (283)

0.73 9.0

11,400

(3.34)

16,200

(4.75)

16,400

(4.81)

3.0 440 (208) 385 (182) 350 (165)

3.0 600 (283) 550 (260) 500 (236)

3.0 710 (335) 650 (307) 600 (283)

CFM

(L/s)

30 65

35 75

40 71

50 69

dBa

VPRC24

VPRH24

VPRC30

VPRH30

VPRC36

VPRH36

P/N 240006980, Rev. R [02/2013] 39 Made in USA

23,200

(6.80)

23,200

(6.80)

31,600

(9.26)

31,600

(9.26)

35,600

(10.43)

35,600

(10.43)

0.73 9.0 N/A N/A 710 (335) 650 (307) 600 (283)

0.73 9.0

0.69 9.0 N/A N/A

0.69 9.0

0.73 9.0 N/A N/A

0.73 9.0

21,600

(6.33)

32,000

(9.38)

36,000

(10.55)

3.0 710 (335) 650 (307) 600 (283)

3.0

3.0

1,190

(562)

1,190

(562)

1,350

(637)

1,350

(637)

1,170

(552)

1,170

(552)

1,290

(609)

1,290

(609)

1,130 (533)

1,130 (533)

1,210 (571)

1,210 (571)

60 70

95 69

95 69

START-UP REPORT

In order for Technical Service to better serve you, please
complete the following information.

Include Model Number, Serial Number, and Date of
installation. Have this information ready when calling.
Technical Support Department: [phone]

Model Number Date:

Technician:

Serial Number Mode: Cooling

Indoor Section Notes
Evaporator Entering Air – DB
Evaporator Entering Air – WB
Evaporator Leaving Air – DB
Evaporator Leaving Air – WB

Outdoor Section
Entering Air
Leaving Air
Temperature Split

Operating Pressures
Compressor Suction – PSIG
Compressor Discharge – PSIG

Power Input
Compressor – Volts
Compressor – Amps
OD Fan Motor – Volts
OD Fan Motor – Amps
ID Fan Motor – Volts
ID Fan Motor – Amps
Total Volts
Total Amps

Temperatures – Degrees F°
Compressor Suction
Compressor Discharge
Liquid Out Cond.
Liquid before Expansion
Suction out Evaporator

Capacity Calculations

DB – Temp Split at evap.

Test Summary
Compressor Superheat
Sub Cooling

The Right Fit for Comfort 40 P/N 240006980, Rev. R [02/2013]

NOTES

P/N 240006980, Rev. R [02/2013] 41 Made in USA

NOTES

The Right Fit for Comfort 42 P/N 240006980, Rev. R [02/2013]

NOTES

P/N 240006980, Rev. R [02/2013] 43 Made in USA

ECR International Inc

2201 Dwyer Avenue

Utica, NY 13501

e-mail: [e-mail]

An ISO 9001-2008 Certifi ed Company