EMI VPAC30, VPAC36, VPHP30, VPHP36 Installation, Operation And Maintenance Manual

VP AC/VPHP 30-36

INST ALLA TION, OPERA TION, AND MAINTENANCE MANUAL

Nominal Cooling Capacity: 30,000 - 36,000 Btuh

P/N 240-4554 Rev. 1.0 [03/04]

VPAC/VPHP 30-36 Single Package Vertical Air Conditioner

(SPVAC) and Heat Pump (SPVHP)

The VPAC/VPHP 30-36 offers an economic benefit
when used in a multi-room suite by supplying condi­tioned air to more than one room without the need to
install another PTAC/PTHP. This is also a design ad­vantage since the second room does not need an ex­terior wall for a second unit.

The VPHP 30-36 heat pump is intended to be a lim­ited range heat pump, which means utilizing a supple­mented heat option is recommended since heat pump
operation will cease at approximately 40°F outdoor
temperature. Consult factory for availability of a full
range defrosting heat pump version.

PRODUCT DESCRIPTION

The VPAC/VPHP 30-36 single package vertical air
conditioner (SPVAC) and heat pump (SPVHP) cre­ates new options in layout and space utilization. The
VP AC/VPHP 30-36 offers low cost operation and quiet,
comfortable air distribution, especially when used in
multi-room suites, apartments, healthcare facilities,
and homes.

Framed into a concealed closet enclosure for low op­erating sound levels, the VPAC/VPHP 30-36’s verti­cal discharge vent allows ducting to the top of the
room(s) for superior air circulation and distribution. Mul­tiple air supply grilles can distribute air when used with
a soffit and intake grilles can be located on the sides
of the enclosure.

The VPAC/VPHP 30-36 can be applied in a ducted
return air application or can remain non-ducted as de­livered. If ducted, the closet enclosure does not re­quire minimum clearances other than what is recom­mended for adequate service access. If non-ducted,
minimum clearance options must be adhered to as
dictated for optimal performance and sound. See note
on minimum clearance dimensions in the illustation
titled ”Exploded View Of Typical Installation” on page
2 of this document. (Figure 1)

Enviromaster International, LLC

Each system is supplied with a ready-to-install wall
sleeve and outdoor louver . The cabinet is constructed
with 20 gauge galvanized steel with a G-90U corro­sion resistant rating and the insulated top discharge
evaporator compartment provides quiet ducted, con­ditioned air delivery to other room location(s).

The VPAC/VPHP 30-36 is backed by EMI and ECR
International and is tested and rated in accordance
with ARI standard 390 and UL-1995. Due to ongoing
product development, product designs and specifica­tions may change without notice. Please contact the
factory for more information.

CONDENSA TE REMOV AL

The VP AC/VPHP 30-36 requires an internal drain sys­tem due to its unique draw-thru condenser design.
Condenser side drain stub(s) are integral to the chas­sis and are very easy to connect a drain hose to.

AIR SYSTEMS

Motors are thermally protected PSC type. Air stream
surfaces are insulated with 1/4 inch fiberglass or 1/8
inch volara. The evaporator fan is a forward curved
type directly mounted to the motor shaft. The con­denser propeller utilizes a draw-thru design for im­proved efficiency.

1

www.enviromaster.com/vpac

ELECTRICAL WIRING

WARNING

! !

Before accessing the control compartment, discon­nect power to the unit. Failure to do so could result
in serious injury or electrical shock.

All field wiring must be done in accordance to NEC
and local codes. Check the unit rating plate for circuit
ampacity and breaker(s) or fuse size(s). Use only
HACR type breakers or time delay fuses. Select the
proper wire for the ampacity rating. Some units re­quire more than one power supply. Check the name­plate and wiring diagram for further instructions.

IMPORTANT: The unit is wired for 230V primary
voltage from the factory. The transformer must be
rewired by the installer if the jobsite voltage is 208V .

Each vertical unit is equipped for a 24V wall thermo­stat connection.

• Front mounted control box

• Manual fresh air damper

• Microprocessor control board

- Universal control board: can be used in straight
cool electric, hydronic heat, or cooling/heat
pump applications.

- Fan purge: fan remains on for 60 seconds af­ter heat/cool call is dropped (“auto” mode only)

- Anti-short cycle compressor protection

- Random start timer: prevents multiple units
from simultaneous start-ups (straight cool only)

- Freeze protection: prevents evaporator freeze
ups

- Low ambient lockout: prevents compressor op­eration in cold outdoor temperatures.

- Test operation: all timers are eliminated to al­low ease of testing after installation (straight cool
only)

- Compatible with fossil fuel, electric heat, mer­cury or electronic thermostats

- Refrigerant hot gas bypass for operation in low
outdoor ambient conditions (cooling cycle only)

ST ANDARD CONTROLS AND COMPONENTS

• Cooling or heat pump chassis w/high efficiency
scroll or reciprocating type compressor

• Custom wall sleeve

• Anodized aluminum outdoor louver for field in­stallation (optional colors available)

FIGURE 1 - EXPLODED VIEW OF TYPICAL INST ALLATION

ROUGH W AL L SLEEVE OPENI NG

Unit Size Width Height

30 28 9/16" 32 3/8"
36 28 9/16" 36 1/4"

For designed performance, sound levels,
and service, maintain a minimum of 6” on
both sides and front for non-ducted return

air applications only.

6”

6”

OPTIONAL CONTROLS AND COMPONENTS

• Supplemental electric heat

• 265/277V (contact factory for availability)

• Painted condenser louver

• Remote wall thermostat

• Return air access panel (w/disposable return air
filters)

Ducted return air applications only require

6”

minimal spacing for service requirements.
Consult ECR Engineering if these mini-

mums can not be met. Depending on the
application and return air introduction,
some reconfiguration is likely to be accom­modated.

VPAC/VPHP

2

Manufactured in Rome, NY, USA

INSPECTION

Carefully check the shipment against the bill of lad­ing. Make sure all chassis, wall sleeves, and louvers
(as well as any options) have been received. Inspect
each component for damage. The carrier must make
proper notation on the delivery receipt of all damage
identified and complete a carrier inspection report.
Concealed damage must be reported to the carrier
within 15 days of the receipt of the shipment.

IMPORTANT: The purchaser must notify the EMI

traffic department of all damage and is responsible
for filing any necessary claims with the carrier.

APPLICA TION LIMIT A TIONS

The VPAC/VPHP 30-36 should be installed in
accordance with all national and local safety codes.

Minimum and maximum operation conditions must be
observed to assure maximum system performance
with minimum service required. Refer to table below
for application limitations of the VPAC/VPHP 30-36.

APPLICATION L IM ITAT IONS

Outdoor Ambient Air Temperature °F

Mi nimum DB Maximum D B

Cool

67

Cool Heat

115 75

in the wall for the wall sleeve and louver be the cor­rect dimension and in the exact position necessary
for installation. (Figure 1)

The platform height should be the same level as the
bottom of the wall opening. Because wall sleeve
depths can vary depending on overall wall thickness,
it is critical that wall thickness be determined

before
ordering the wall sleeve. (Figure 2) Consult factory
for available wall sleeve sizes.

FIGURE 2 - DETERMINING WALL SLEEVE DEPTH

½” x ½” Foam Gasket

Outdoor Louver

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

Wall Sleeve Depth = Overall W all
Thickness - 1.25” (Louver Depth)

Overall Wall

Thickness

Exterior Wall

Wall Sleeve

Interior Wall

Lag Holes

(4 Per Side)

Indoor Ambient Air Temperature °F

Minimum Maximum

DB/WB D B DB/WB DB

Cool Heat Cool Heat

67/57 50 90/72 80

CAUTION

! !

Avoid possibility of electric shock and personal in­jury. Disconnect all power before removing chas­sis or performing any cleaning, servicing, or main­tenance.

GENERAL INST ALLA TION

Enviromaster International recommends installing the
VPAC/VPHP 30-36 before any carpentry work is
started for the enclosure. It is very important for proper
air flow and sound levels that a minimum clearance of
6” between the enclosure and the chassis be main­tained. It is also very important that the rough opening

Wall Sleeve

Assembly

Cross Section
of Typical Wall

1. Install 1/2” x 1/2” or 1” x 1” foam tape (supplied)
to the unit condenser top and sides to seal against
the wall sleeve. (Figure 3)

FIGURE 3 - INSULATION & WEATHER ANGLES

Install supplied
1/2” x 1/2” foam
insulation along
top and sides of
condenser box.
(IMPORTANT:
Position as far
forward toward
outdoor side as
possible.)

Weather Angle

Position (One on

each side)

Enviromaster International, LLC

3

www.enviromaster.com/vpac