EMI S1C, S1H User Manual
S1C/S1H Single-Zone & S2C Dual-Zone
SiDe DiSCHarge DuCtleSS Split SyStem
ConDenSing unitS
Straight Cool/heat pump S1C/S1h
Nominal Circuit Capacities S1C/S1H:
9,000, 12,000, 18,000, 24,000 Btuh and
S1C 30-36 Btuh
Cooling only S2C
Nominal Circuit Capacities:
9,000-12,000 Btuh
S1C/S1h
Enviromaster International LLC
inStallation, operation anD maintenanCe manual
5780 Success Dr.
Rome, NY 13440
www.enviromaster.com
S2C
An ISO 9001-2000 Certied Company
P/N# 240005897 Rev. B [05/08]
S1C/S1H Single-Zone & S2C DUal-Zone
inStallation, operation anD maintenanCe manUal
This manual is intended as an aid to a qualied service personnel for proper installation,
operation, and maintenance of EMI AmericaSeries high efciency condensing units.
Carefully read these instructions before attempting installation or operation. Failure
to follow these instructions may result in improper installation, operation, service, or
maintenance, possibly resulting in re, electrical shock, property damage, personal
injury, or death.
Shipping Damage MUST be Reported to the Carrier IMMEDIATELY!!!
Examine the exterior. Remove cover and examine compressor and piping
for signs of damage.
ConDenSing UnitS
to tHe inStaller
(1) Retain this manual and warranty for future
reference.
(2) Before leaving the premises, review this
manual to be sure the unit has been
installed correctly and run the unit for
one complete cycle to make sure it
functions properly.
To obtain technical service or warranty
assistance during or after the installation
of this unit, check our website @ www.
enviromaster.com or call your installing
contractor or distributor. Our technical
service department may be contacted at
1-800-228-9364.
When calling for assistance, please have
the following information ready:
• Model Number___________________
• Serial Number___________________
• Date of installation________________
Danger
!
tampering with the emi americaSeries condensing unit is dangerous and may result in serious injury
or death. tampering voids all warranties. Do not attempt to modify or
change this unit in any way.
!
SaFetY inStrUCtionS
Read all instructions before using
the EMI AmericaSeries high ef-
ciency condensing unit. Install or
locate this unit only in accordance
with these instructions. Use this
unit only for its intended use as
described in this manual.
Check the rating plate on the EMI
AmericaSeries condensing unit
before installation to make certain
the voltage shown is the same as
the electric supply to the unit.
The EMI AmericaSeries condens-
ing unit must be connected only to
a properly grounded electrical sup-
ply. Do not fail to properly ground
this unit.
Turn off the electrical supply before
servicing the EMI AmericaSeries
condensing unit.
Do not use the EMI AmericaSeries
condensing unit if it has damaged
wiring, is not working properly, or
has been damaged or dropped.
[Save these instructions]
2
www.enviromaster.comSide Discharge Condensers
proDUCt DeSCription
The AmericaSeries S1C/H and S2C
condensing units are, air-cooled, vertically
arranged side discharge, high efciency
units designed specically to meet or ex-
ceed a 13 SEER rating.
The S1C 9,000-36,000 Btuh and S1H
9,000-24,000 Btuh capacity condensing unit
will provide cooling for a single evaporator,
as identied in the "S1C Specications and
Dimensions" section on pages 23-24.
The S2C 18,000 (99) - 21,000 (92) and
23,000 (22) Btuh capacity condensing units
will provide cooling for two evaporators, as
identied on page 25 in the "S2C Specica-
tions and Dimensions" section. The S1C/H
and S2C are quiet units that can be recom-
mended for both commercial and residential
applications.
Installation of the S1C/H and S2C
condensing units is simplied by a 24v
control interconnection from the evaporator
and multiple units can be lined up in close
proximity to an exterior wall. Service valves
are recessed to reduce tampering and
all 9,000-12,000 Btuh units are equipped
with a Duratec Performance Package that
includes an oversized suction accumula-
tor with surge bafes and enhanced oil
management, a factory installed solid core
lter drier and loss of charge switch. A eld
installed crankcase heater is standard on
S1H 09 &12 (Thermostatically controlled)
models, and is available as optional equip-
ment on other models.
inStaller SUpplieD itemS
• Power wiring
• Low volt wiring (18 awg minimum)
• Secure mounting pad or foundation
• Refrigerant piping (if not purchased
from EMI)
• High Volt Disconnect
• Refrigerant for charging interconnect
piping (see charge table on page 10)
itemS For ConSiDeration
ControlS anD ComponentS
(Factory Installed or Supplied)
• Compressor and fan motor contactor
• Run capacitor
• Loss of charge switch (09 - 12 only)
• Low voltage terminal connections
• Large capacity suction accumulator
(09 - 12 only)
• Solid core lter drier (09 - 12 only)
• Thermostatically controlled crankcase
heater (09 - 12 S1H’s)
• H.P.S. (High pressure switch)
- Standard on S1H’s (heat pumps)
- Standard on S1C’s 18K and above.
• Low Ambient controls
down to 32º F
stalled
on all S1H’s (heat pumps)
Thermostatically controlled crankcase
heater – This feature energizes the crank-
case heater only when needed, removes
the heater from the electrical circuit at
conditions where it’s not required, saving
unnecessary Watts, and increasing overall
system efciency.
for operation
standard,
factory in-
SYStem optionS
• Field installed crankcase heater
for straight cool units (standard on
9,000-12,000 Btuh S1H’s Thermostati-
cally controlled)
• Straight cool hard start (standard on
all S1H’s)
• 115v (9,000-12,000 Btuh only)
• Copper/copper coils (sea coast use)
• Low Ambient controls
to 32º F
, specify this option for S1C or
for operation down
S2C systems (standard on S1H’s) that
will be operated in cooling mode at
outside temperatures below 60º F
(eld
installed kit)
•
Low Ambient
for operation down to 0º F
for S1C, S1H or S2C systems (consult
factory for availability)
low ambient controls are required when
the system is asked to cool at outdoor temperatures below 60º F, this may cause dam-
age to the compressor and coil, and may
Side Discharge Condensers
3
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SYStem optionS (cont.)
void the warranty. A Field Installed LowAmbient kit is good for operation down to
32º F.
This is accomplished by cycling the
condenser fan on and off, which will in turn
maintain a constant low side pressure pro-
viding a steady cooling effect and keeping
the air handler from frosting-up.
itemS For ConSiDeration
• Locate the unit as close to the indoor
section as possible. (See Tubing
Specications chart on pape 7.)
• If the unit is used for low ambient cool-
ing down to 32°F, this option must be
specied to prevent system damage.
• Avoid high trafc areas and prevailing
wind locations.
• Surface must be at and level.
• Mount unit above typical snow fall
levels.
Ensure free ow of air through the unit.
Air must not recirculate from discharge to
intake. Air is drawn through the coil and
side discharged through the fan grille. a
minimum 48" clearance is necessary for
the condenser discharge. rear intake
(coil side) clearance is 12" minimum.
Consider how power will be run to the unit
from the power source. Refrigerant piping
should be a direct line to the indoor unit.
inStallation inStrUCtionS
Unit moUnting inStrUCtionS
S1C is shown
Side discharge unit allows for per-
manent mounting through the feet. This is
highly recommended due to the vertical
design of the unit.
1. Loosen the screws on left and right sides
of the front panel. (Do not remove these
screws.)
2. Remove the screws on the front of the
panel.
3. To remove front panel:
inStallation inStrUCtionS
Site preparation
1. Place the unit on a at concrete surface
or pad if on the ground. Roof mounting
should use a build up platform to avoid
intake of hot air from the roof.
2. In areas of heavy snowfall, condensers should be set above the level of
maximum anticipated snowfall (12"
is usually adequate).
4. Slide front panel forward to clear side
screws and remove.
4
www.enviromaster.comSide Discharge Condensers
inStallation inStrUCtionS
Unit moUnting inStrUCtionS
Continued
Compressor
Accumulator Capacitor
S1C
Shown
Filter Drier
Lag Bolts
5. Insert lag bolts through the holes in
the bottom of the unit and tighten to
secure.
S1C
Shown
eleCtriCal Wiring
1. All electrical wiring must be run accord-
ing to NEC and local codes.
2. Refer to the unit rating plate for voltage,
minimum circuit ampacity and over cur-
rent protection requirements.
Rating
Plate
3. Use only HACR type breakers or time
delay fuses. Select the wire size accord-
ing to the ampacity rating.
4. To access electrical connections and
wiring diagram:
a) Remove the screws on the side panel
adjacent to the back panel.
6. Insert lag bolts through the holes in the
feet on the back of the unit and tighten
to secure.
7. Replace the front panel, do not tighten
the side screws at this time.
Side Discharge Condensers
b) The screws adjacent to the front
panel should already be loose (don't
remove them).
5
www.enviromaster.com
inStallation inStrUCtionS
c. Slide the side panel out to access the
high/low electrical connections and
wire diagram.
S1C
High Volt
plastic edge guards
Note: Remove the plastic edge guards
from the holes and replace with a watertight strain relief tting (High V) and a split
grommet tting (low V)
5. Power should be run to a weather proof
disconnect box usually within 3 feet of
the unit.
6. From the disconnect box, run the power
through the 7/8" hole on the side of the
unit and into the electrical box and an-
chor with the strain relief tting.
Low Volt
8. Check wiring diagram for the required
number of low voltage wires to be run
between indoor and outdoor sections.
S1C
Shown
low Volt Connection
9. Connect the 24 volt wiring matching color
to color. Refer to the wiring diagram on
the inside panel of the condenser, and
a l s o refer to the wirin g
diagram on the
indoor unit.
Low volt in-
terconnect
should be
at least 18
awg.
S1C
Shown
High Volt Connection
7. Run wires to the high volt pigtail in the con-
trol box and attach L1 and L2 connections.
Also run green wire to ground wire.
S1C
Completed electrical Connections
6
www.enviromaster.comSide Discharge Condensers
inStallation inStrUCtionS
eleCtriCal Wiring
Continued
10. To replace side panel slide the slotted
holes of the panel onto the loosened
screws of the front panel so that the
edge of the front panel covers the edge
of the side panel.
reFrigerant piping
interConneCting tUbing
SpeCiFiCationS
S1
maX.
max.
model
length
09 100’ 35’ 1/4" 1/2"
12 100’ 35’ 1/4" 1/2"
18 100’ 35’ 3/8" 5/8"
24 100’ 35’ 3/8" 3/4"
30 100’ 35’ 3/8" 3/4"
36 100’ 35’ 3/8" 3/4"
S2C tUbing SpeCiFiCationS
Circuit
Size
09, 12 1/4” 1/2”
liquid
lift
line o.D.
line Sizes o.D.
liquid Suction
Suction
line o.D.
The system will support refriger-
ant runs to the inside unit of up to 100'
equivalent feet with a 35' rise included.
The units are furnished with sweat con-
nections and are equipped with refrigerant
valves and Schrader ttings for charging
and taking pressure readings. The follow-
ing precautions should be made:
• Be certain no burrs remain on the
ttings.
• Use only clean refrigeration tubing.
• Use tube benders to guard against
kinking.
• Avoid piping on wet and rainy days
and insulate suction line. Be certain
that plastic end caps remain in place
when inserting through wall openings.
Isolate tubing from transmitting vibra-
tion to the building or unit and avoid
contact with sharp edges. refrigera-
tion valves should be wrapped with
a wet rag "heat sink" to protect
valves while brazing.
11. Fasten all remaining loose screws.
Side Discharge Condensers
note: It is recommended that a
lter drier be installed in liquid line, at
the indoor unit on models that a lter
drier is not already factory installed
(i.e. 18K and larger).
7
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Condenser
Evaporator
inStallation inStrUCtionS
p-trap inStallation
• A P-trap is recommended when the suc-
tion riser is equal to or greater than 20
feet in height.
• When the condenser is installed above
the evaporator, the P-trap will help the
return of oil back to the compressor.
• The placement of the P-trap should be
at the halfway mark of the suction riser.
For example if the suction riser is 30 feet
tall then a P-trap is recommended at the
15 foot mark of the suction riser (see
Figure 1).
• A P-trap may be fabricated using (2) street
elbows and (2) regular elbow. A prefab-
Figure 1
Condenser
ricated trap may be purchased from a
wholesaler or distributor however the trap
should be shallow as the (3) elbow con-
guration. Each elbow is approximately
2 equivalent feet. One P-trap is equal to
approximately 12 equivalent feet.
note: Avoid excessive oil buildup.
The P-trap should have a shallow depth
and a short horizontal section.
• P-traps are not required at the foot of the
hot gas risers due to increased oil ow at
higher temperatures.
30'
15'
8
Evaporator
www.enviromaster.comSide Discharge Condensers
inStallation inStrUCtionS
reFrigerant piping
Continued
1. Clean the ends of tubing and insert into
ttings.
S2C
S1C
Shown
S1C
Shown
2. Protect the valves by wrapping with a
wet rag "heat sink" before brazing.
S1C
Shown
3. We recommend the use of a shield (can
be made from some scrap metal) to
protect the paint.
5. Attach manifold set.
Manifold
S1C
Shown
Vaccum Pump Micron Gage
manifold Setup For evacuation
6. Evacuate line to 500 microns or less to
ensure all moisture has been removed
and there are no leaks.
S1C
Shown
S2C
Shown
4. Braze tubing into ttings.
Side Discharge Condensers
refer to refrigerant
Charge table for
specied line charge.
Refrigerant
7. Once certain of a good evacuation and
leak free joints, back-seat the valves
(counter-clockwise) to open and allow
factory charge to ll lines and indoor unit.
9
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