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Multi-zone Heat Pump Condensing Units
EMI AMERICA SERIES MULTI-ZONE HEAT PUMP CONDENSING UNITS
CONTROLS AND COMPONENTS
(FACTORY INSTALLED OR SUPPLIED)
• Compressor and Fan Motor Contactor
• Capacitor
• Loss of Charge Switch
• Low Voltage Connections
• Large Capacity Suction Accumulator
• High Pressure Control
• Solid Core Filter Drier
• Crankcase Heater
• Common suction pressure access
point
ITEMS FOR CONSIDERATION
• Locate the unit as close to the indoor sec-
tion as possible. Maximum length allowed
is 100 equivalent feet.
• Avoid high traffic areas and prevailing
wind locations.
• Surface must be level.
• Mount unit above typical snow levels.
Ensure free flow of air through the unit. Air
must not recirculate from discharge to in
-
take. Air is drawn through the coil with side,
or top discharged through the fan grille. A
minimum 48” clearance is necessary
for the condenser discharge. Intake
(coil side) clearance is 12” minimum.
Consider how power will be run to the unit
from the power source. Refrigerant piping
must be a direct line to the indoor unit.
Heat pump units produce condensate in the
heat pump mode. Water will drain from the
unit at the base. Place the unit so as not to
create a hazard for pedestrians.
SYSTEM OPTIONS
• Sea Coast Style Coated Coils /
Copper-Copper coils
• Wind Baffles - Louvers•
INSTALLER SUPPLIED ITEMS
• Power wiring
• Low Volt wiring - 18 AWG minimum
• Secure mounting pad or foundation
• Refrigerant piping (if not supplied)
• Disconnect switch
SITE PREPARATION
Place the unit on a flat concrete surface or
pad if on the ground. Roof mounting should
use a build up platform. Piping is through
the wall or roof directly to the unit. In areas
of heavy snowfall, condensers should be
set above the level of maximum anticipated
snowfall (12” is usually adequate).
DESCRIPTION
EMI offers the finest dual zone heat pump
outdoor units in the ductless split market,
the S2HA Condensing Unit. The S2HA
allows the installation of two circuits from
a single outside location when space or
aesthetic requirements limit the use of the
number of cabinets outdoors. Each zone
is independent so no mixing of refrigerant
occurs.
When specifying heat pump(s), it is
recommended that the matching indoor
unit(s) be equipped with electric heat. The
S2HA will operate down to 35°F outdoor
temperature, at which point it will initiate
change over to electric heat and shut down
the condenser. All 9,000, and 12,000 Btuh
circuit units are equipped with the Duratec
Performance
Package which include a large
capacity suction accumulator with surge
baffles and enhanced oil management, a
factory installed solid core filter drier and
loss of refrigerant charge protection.
NOTE: The crankcase heater is in-
stalled with 9,000 and 12,000 Btuh
heat pumps.