EMI S1CG User manual

S1CG/S1HG Single-Zone
S2CG/S2HG Dual-Zone
Side-Discharge Ductless Split-System
Condensing Units for R410 Refrigerant
Capacities — Single-Zone Applications
S1CG or S1HG S1CG only Units
9,000 12,000 18,000 24,000 28,000 33,600 Btuh
2.6 3.5 5.3 7.0 8.3 10.5 kW
Capacities — Dual-Zone Applications
S2CG or S2HG Units
9,000 12,000 Btuh
2.6 3.5 kW
Installation, Operation and
Maintenance Manual
ECR International LLC
2201 Dwyer Ave
Utica, NY 13504
www.enviromaster.com
An ISO 9001-2000 Certified Company
P/N 240007754, Rev. C [3/19/2010]
S1CG
S1HG
S2CG
S2HG

S1CG/S1HG
S
in
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le-Zone, S2CG/S2H
G
Dual-Zone
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nstallation,
Op
eration and Maintenance Manual •
Comfort where it counts 2P/N 240007754, Rev. C [3/19/2010]
Contents
NOTICE
Shipping Damage
Shipping damage MUST be reported
to the carrier IMMEDIATELY.
Examine the exterior. Remove cover
and examine compressor and piping
for signs of damage.
Inspect each component for damage.
Concealed damage must be reported
to the carrier within 15 days of the
receipt of the shipment.
e carrier must make proper notation
on the delivery receipt of all damage
identied and complete a carrier inspec-
tion report.
e purchaser must notify ECR Inter-
national’s Customer Service Depart-
ment of all damage and is responsible
for ling any necessary claims with the
carrier.
Customer Service : [phone]
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Verify unit before installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Mounting the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Refrigerant Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Operation Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Starting the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Operation and Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Single-zone and Dual-zone Condenser Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Single-zone and Dual-zone Condenser Sequence of Operation,
Testing Defrost Operation Using Test Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Specification and Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Test Unit Performance Data Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
EMI’s Product Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
To the Installer
Retain this manual and warranty for
future reference. Before leaving the prem-
ises, 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 aer the installation
of this unit, contact your local representa-
tive. For a local representative listing, visit
our web site:
www.enviromaster.com
For further assistance call:
1-800-228-9364
When calling for assistance, please have
the following information ready:
Model Number _____________
Serial Number _____________
Date of installation ___________
NOTICE
e EMI series high eciency condensing unit is backed by EMI and ECR International
and is tested and rated in accordance with AHRI Standard 210/240-2008 and UL-1995.
Due to ongoing product development, product designs and specications may change
without notice. Please contact the factory for more information.

S1CG/S1HG
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Read Before Proceeding
Recognize this symbol as an indication of
important safety information.
WARNING
Completely read all instructions
prior to assembling, installing, oper-
ating, or repairing this product.
Inspect all parts for damage prior to
installation and start-up. e EMI series
high eciency condensing unit must be
installed ONLY by qualied installation
personnel.
Safety Instructions
is manual is intended as an aid to quali-
ed service personnel for proper installa-
tion, operation, and maintenance of the
EMI series high efficiency condensing
unit. Read these instructions thoroughly
and carefully before aempting installa-
tion or operation. Failure to follow these
instructions may result in improper instal-
lation, operation, service, or maintenance,
possibly resulting in re, electrical shock,
property damage, personal injury, or
death.
Read all instructions before using this
unit. Install or locate this unit only in ac-
cordance with these instructions. Use this
unit only for its intended use as described
in this manual.
Check the rating plate on the unit before
installation to make certain the voltage
shown is the same as the electric supply to
the unit. e rating plate is located on the
front panel only.
This unit must be connected only to a
properly grounded electrical supply. Do
not fail to properly ground this unit.
Turn o the electrical supply before servic-
ing the unit.
Do not use the unit if it has damaged wir-
ing, is not working properly, or has been
damaged or dropped.
DANGER
Tampering with this unit is danger-
ous. Tampering voids all warranties. DO
NOT aempt to modify or change this
unit in any way.
DANGER
e EMI series must:
Be connected to a properly grounded•
electrical supply with the proper
voltage as stated on the rating plate.
Have proper over current protection•
(i.e. time-delay fuse/HACR Breaker)
as listed on the rating plate.
Failure to follow these instructions can
result in a re, explosion, or electrical
shock causing property damage, personal
injury, or death.

S1CG/S1HG
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Product description
e EMI Series S1CG/S1HG and S2CG/
S2HG condensing units are air-cooled, verti-
cally-arranged side-discharge, high-eciency
units designed specically to meet or exceed
a 13 SEER rating.
e S1CG Models 09–36 and S1HG Models
09–24 condensing units will provide cooling
and heating for a single air handler, as identi-
ed on page 34 and page 35.
e S2CG/S2HG 18,000 (99), 21,000 (92)
and 24,000 (22) Btuh capacity condensing
units will provide cooling and heating for two
air handlers, as identied on page 36.
The S1CG/S1HG and S2CG/S2HG are
quiet units that can be recommended for both
commercial and residential applications.
Features
Installation of the S1CG/S1HG and•
S2CG/S2HG condensing units is sim-
plied by a 24v control interconnection
from the air handler.
Multiple units can be lined up in close•
proximity to an exterior wall.
Service valves are recessed to reduce•
tampering.
All 9,000-12,000 Btuh units are equipped•
with a Duratec Performance Package that
includes an oversized suction accumula-
tor with surge baes and enhanced oil
management and a factory-installed solid
core lter drier.
A factory-installed crankcase heater is•
standard on S1HG 09 &12 (thermostati-
cally controlled) and S2HG models, and
is available as optional equipment on
other models.
Verify unit before installing
Controls and components
(Factory-installed or supplied)
Compressor and fan motor contactor•
Run capacitor•
Low voltage terminal connections•
H.P.S. (High pressure switch) with•
manual external reset
Heat pump hard start•
Cooling operation down to 32°F standard•
on all units
Models 09–12 only:•
Large capacity suction accumulator–
Solid-core lter drier–
Thermostatically-controlled crank-–
case heater (heat pump only)
Thermostatically-controlled
crankcase heater
This feature energizes the crankcase•
heater only when needed, saving unnec-
essary power usage and increasing overall
system eciency.

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Verify unit before installing (continued)
System options
Corrosion-resistant coil options (sea•
coast and harsh environment usage):
Copper n/copper tube condenser–
coil
Coated aluminum fin/copper tube–
condenser coil
Low Ambient controls for cooling opera-•
tion down to 0°F (standard equipment
can operate down to 32°F)
Optional field-installed kit, when–
specied, for cooling operation down
to 0°F — kit includes control, louvers
and wind baffle plus installation
instructions
Low Ambient controls for operation•
down to 0°F (consult factory for avail-
ability)
Models 09–12 only:•
115v (single-zone only — S1CG or–
S1HG)
Field-installed thermostatically-con-–
trolled crankcase heater for straight
cool units (S1CG or S2CG) Recom-
mended for operation below 60°F.
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 pip-•
ing (see charge table on page 15)
NOTICE
Low Ambient controls are required
when the system is asked to cool at
outdoor temperatures below 32°F, this
may cause damage to the compressor
and coil, and may void the warranty. A
field-installed low-ambient kit allows
operation down to 0°F.
This is accomplished by cycling the
condenser fan on and off. This will,
in turn, maintain a constant low-side
pressure, providing a steady cooling
eect and keeping the air handler from
frosting-up.
e optional kits include louvers/wind
baffle, crankcase heater, outdoor fan
cycling switch, and installation instruc-
tions.

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Mounting the Unit
Before installing, consider:
Locate the unit as close to the indoor sec-•
tion as possible. (see page 11.)
S1CG/S2CG — If the unit is used for low•
ambient cooling down to 32°F, S1CG/
S2CG require CCH.
Avoid high traffic areas and prevailing•
wind locations.
Surface must be at and level.•
Mount unit above typical snow fall level.•
This is particularly important for heat
pump applications (S1HG/S2HG).
NOTICE
Ensure free ow of air through the•
unit.
Air must not recirculate from dis-•
charge to intake — air is drawn
through the coil and side discharged
through the fan grille.
A minimum 48” clearance is neces-•
sary 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.
Site preparation
Place the unit on a at concrete surface1.
or pad if on the ground. Roof mounting
should use a built up platform to avoid
intake of hot air from the roof.
In areas of heavy snowfall, condensers2.
should be set above the maximum antici-
pated snow line (12" is usually adequate
for most locations).
Unit Mounting Instructions
Model S1CG is shown for example in the
following sequence.
e side-discharge unit allows for permanent
mounting through the feet. This is highly
recommended due to the vertical design of
the unit.
1. Figure 1, Page 7:
Bullet 1 — Loosen the screws on le–
and right sides of the front panel. (Do
not remove these screws.)
Bullet 2 — Remove the screws on the–
front of the panel.
2. Figure 2, Page 7:
Slide front panel forward to clear side
screws and remove.
3. Figure 3, Page 7:
Insert lag bolts through the holes in the
boom of the unit and tighten to secure.
4. Figure 4, Page 7:
Insert lag bolts through the holes in the
feet on the back of the unit and tighten
to secure.
Replace the front panel, do not tighten5.
the side screws at this time.

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Mounting the Unit (continued)
Remove front panel screwsFigure 1
1 2
Remove front panelFigure 2
Bottom lag hole locationsFigure 3
A
A
A
A
B
B
C
C
D
D
E
E
S1CG
S1CG
Shown
Shown
Lag boltsA Filter drierB
CompressorC AccumulatorD
CapacitorE
Lag holes in feetFigure 4
S1CG
S1CG
Shown
Shown

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Electrical Wiring
Rating plate locationFigure 5
Rating
Rating
plate
plate
Remove side panel screwsFigure 6
NOTICE
All electrical wiring must be run accord-
ing to NEC and local codes.
1. Figure 5, Page 8 — Refer to the unit rat-
ing plate for voltage, minimum circuit
ampacity and over current protection
requirements.
Use only HACR type breakers or time2.
delay fuses. Select the wire size according
to the ampacity rating.
To access electrical connections and wir-3.
ing diagram:
a. Figure 6, Page 8 — Remove the
screws on the side panel that covers
the electrical box. e box is adjacent
to the back panel and denoted with
electrical connections.
e screws adjacent to the front panelb.
should already be loose (don’t remove
them).
Slide the side panel out to access thec.
high/low electrical connections and
wire diagram.
d. Figure 7, Page 9 — Add water-tight
strain relief ing to the high volt side
before wiring, a split grommet ing
has been factory installed in the low
volt side.
Power should be run to a weather proof4.
disconnect box usually within 3 feet of
the unit.

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Electrical Wiring (continued)
Power entrancesFigure 7
S1CG
S1CG
Shown
Shown
High volt
High volt
Plastic edge guards
Plastic edge guards
Low volt
Low volt
High voltage connectionsFigure 8
S1CG
S1CG
Shown
Shown
Low voltage connectionsFigure 9
S1CG
S1CG
Shown
Shown
Continued on next page
5. Figure 8, Page 9 — From the disconnect
box, run the power through the 7/8”
hole on the side of the unit and into the
electrical box. Anchor with the strain
relief ing.
Run wires to the high volt pigtail in the6.
control box and aach L1 and L2 con-
nections. Also run green wire to ground
wire.
Check wiring diagram for the required7.
number of low voltage wires to be run
between indoor and outdoor sections.
8. Figure 9, Page 9 — Connect the 24 volt
wiring matching color to color. Refer to
the wiring diagram on the inside panel of
the condenser, and also refer to the wir-
ing diagram on the indoor unit. Low volt
interconnect should be at least 18 awg.
See9. Figure 10, Page 10 and Figure 11,
Page 10 for completed wiring of S1CG
and S2CG examples.
To replace side panel slide the slotted10.
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.
Fasten all remaining loose screws.11.

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Electrical Wiring (continued)
Replacing side panelFigure 12
Fasten loose screwsFigure 13
Completed wiring, S1CGFigure 10
S1CG
S1CG
Shown
Shown
Completed wiring, S2CGFigure 11

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Refrigerant Piping
Tubing specifications
e system will support refrigerant runs to
the inside unit as listed in Table 1, Page 11.
e units are furnished with sweat connec-
tions and are equipped with refrigerant valves
and Schrader ings for charging and taking
pressure readings.
CAUTION
It is recommended that a filter drier be
installed in the liquid line, at the indoor
unit on models without a factory-in-
stalled lter drier (i.e. 18K and larger).
S1CG/S2CG tubing specifica-Table 1
tions (see Table 14, Page 11)
Model Max.
Length
Equivalent
Feet
Max.
Lift
Max.
Trap
Height
Liquid
Line
Suction
Line
“H” “P” O.D. O.D.
09 50’
(15 m)
20’
(6 m)
15’
(5 m)
1/4" 1/2"
12 1/4" 1/2"
18
100’
(30 m)
35’
(11 m)
20’
(6 m)
3/8" 5/8"
24 3/8" 3/4"
30 3/8" 3/4"
36 3/8" 3/4"
P-trap installation
A P-trap is recommended when the•
suction riser is equal to or greater than
show in Figure 14, Page 11 and Table 1,
Page 11.
When the condenser is installed above the•
air handler, the P-trap will help the return
of oil back to the compressor.
P-trap placement (seeFigure 14 Table 1,
Page 11 for dimensions H& P)
A P-trap may be fabricated using (2) street•
elbows and (2) regular elbow.
A prefabricated trap may be purchased•
from a wholesaler or distributor however
the trap should be shallow as with the (3)
elbow conguration.
Each elbow is approximately 2 equivalent•
feet.
One P-trap is equal to approximately•
12 equivalent feet.
P-traps are not required at the foot of the•
hot gas risers due to increased oil ow at
higher temperatures.

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Refrigerant Piping (continued)
Clean ends of tubingFigure 15
Wet rag “heat shield over valvesFigure 16
S2CG
S2CG
S1CG
S1CG
Shown
Shown
Make a shield to protect paintFigure 17
S1CG
S1CG
Shown
Shown
S2CG
S2CG
Shown
Shown
CAUTION
Avoid piping on wet and rainy days.•
Use only clean, refrigeration-grade•
copper tubing.
Use tubing benders to guard against•
kinking.
Be certain no burrs remain on the•
  ings.
Cap ends of lines until ready for con-•
nections.
Be certain that plastic end caps remain•
in place when inserting through wall
openings.
Insulate the suction line.•
Isolate tubing from transmiing vibra-•
tion to the building or unit and avoid
contact with sharp edges.
Wrap refrigeration valves with a wet•
rag “heat sink” to protect valves while
brazing. (See Figure 16, Page 12.)
Refrigerant piping
Clean the ends of tubing and insert into1.
  ings (Figure 15).
Protect valves by wrapping with a wet rag2.
“heat sink” before brazing (Figure 16).
Use a shield to protect the paint as shown3.
in Figure 17. (e shield can be made
from scrap metal.)
Braze tubing into ings.4.
Install all panels removed to this point.5.
Panels are required for proper air ow.

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Refrigerant Processing
Charging the unit
Aach manifold set, vacuum pump, &1.
Micron Gauge. (Figure 18).
Evacuate line to 500 microns or less to2.
ensure all moisture has been removed and
there are no leaks (Figure 19).
Once certain of a good evacuation and3.
leak free joints, back-seat the valves
(counter-clockwise) to open and allow
factory charge to ll lines and indoor unit
(Figure 20, pg. 13).
NOTICE
Refer to refrigerant charge table for speci-
ed charge.
Charge to proper weight, charge based4.
on feet of interconnect (see tables on
page 15). Only add/remove 410A in
liquid form.
Refer to charts beginning on5. page 17 to
“ne tune” the refrigerant charge to meet
your conditions.
CAUTION
All systems require eld charge adjust-
ments. Refer to the “Refrigerant Charge
Tables” for proper weight charge and
to the supplied “Single-zone Operation
Charts” for proper system pressures and
temperature at dierent outdoor condi-
tions. Superheat should be used for nal
system charge.
CAUTION
Charging should be done with a dial-a-
charge or weighed in with a scale.
When charging and checking pressures/
temperatures on system supplied with
Low Ambient Option, the fan cycle
switch should be jumpered out of the
circuit temporarily to obtain accurate
data.
Manifold set connections at unitFigure 18
S1CG
S1CG
Shown
Shown
Manifold set up for evacuationFigure 19
A
A
B
B
C
C
S1CG
S1CG
Shown
Shown
ManifoldA Vacuum pumpB
Micron gageC
ChargingFigure 20
S2CG
S2CG
S1CG
S1CG
Refrigerant
Refrigerant
S1CG
S1CG
Shown
Shown

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Refrigerant Processing (continued)
WARNING
It is illegal to discharge refrigerant into
the atmosphere. Use proper reclaiming
methods & equipment when installing
or servicing this unit.
The units are delivered pre-charged with
refrigerant for the condenser coil and the air
handler. Charging of the eld installed piping
is required. Refer to the refrigerant charge
table for the proper amount to be added for
the applications interconnect piping. Unit
service valves are solid brass, for sweat con-
nections.
CAUTION
Pressure test all eld installed piping
with nitrogen. Using a suitable vacuum
pump, evacuate the tubing and indoor
unit to 500 microns or less, with service
valves remaining front seated (closed).
Before releasing the refrigerant from the
condenser, be sure the manifold gauge
set is closed so as not to lose vacuum
when shuing down the pump.
Release refrigerant from the condensing
unit by back seating the service valve. Al-
len wrenches are used to open the valve.
Replace valve caps. DO NOT back seat
the valves past the snap anges that hold
the valve core in place.
NOTICE
e following air handlers are equivalent
in electrical specications and system
combinations.
WLH09 = UNH09
WLH12 = UNH12
WLH24 = UNH24
WLC30 = UNC30
WLC36 = UNC36

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S1CG/S1HG refrigerant charge tableTable 2
Condenser Air handler
pairing
Line charge
per foot
Factory
charge Condenser Air handler pairing
Line charge
per foot
Factory
charge
S1CG9 CAH09 .25 oz/ft
(23 g/m) 39.5 S1HG9
WLH09/UNH09
.25 oz/ft
(23 g/m) 51.3
S1CG2 CAH12 .25 oz/ft
(23 g/m) 33.75 S1HG2
WLH12/UNH12
.25 oz/ft
(23 g/m) 45.75
S1CG8 CAH24 .64 oz/ft
(59 g/m) 65.25 S1HG8
WLH24/UNH24
.64 oz/ft
(59 g/m) 63.0
S1CG4 CAH24 .64 oz/ft
(59 g/m) 63.0 S1HG4
WLH24/UNH24
.64 oz/ft
(59 g/m) 74.0
S1CG3 CAC36 .64 oz/ft
(59 g/m) 97.5 S1HG9 CAH09 .25 oz/ft
(23 g/m) 51.3
S1CG6 CAC36 .64 oz/ft
(59 g/m) 80.0 S1HG2 CAH12 .25 oz/ft
(23 g/m) 45.75
S1CG9 WLH09/UNH09 .25 oz/ft
(23 g/m) 39.5 S1HG8 CAH24 .64 oz/ft
(59 g/m) 63.0
S1CG2 WLH12/UNH12 .25 oz/ft
(23 g/m) 33.75 S1HG4 CAH24 .64 oz/ft
(59 g/m) 74.0
S1CG8 WLH24/UNH24 .64 oz/ft
(59 g/m) 65.25
S1CG4 WLH24/UNH24 .64 oz/ft
(59 g/m) 63.0
S1CG3 WLC30/UNC30 .64 oz/ft
(59 g/m) 97.5
Refrigerant Processing (continued)
NOTICE – to find charge adjustment
To nd the charge adjustment and system charge for any air handler and tubing1.
length:
Line Adjustment = (Line Charge/FT) x Line Length
System Total = Factory Charge + Line Adjustment
Round to the nearest ounce and allow for gauges and hoses.2.

S1CG/S1HG
S
in
g
le-Zone, S2CG/S2H
G
Dual-Zone
•
I
nstallation,
Op
eration and Maintenance Manual •
Comfort where it counts 16 P/N 240007754, Rev. C [3/19/2010]
S2CG/S2HG refrigerant charge tableTable 3
Condenser Air handler
pairing
Line charge
per foot
Factory
charge Condenser Air handler pairing
Line charge
per foot
Factory
charge
S2CG99 (2) WLHG09 .25 oz/ft
(23 g/m) 44/44 S2HG99 (2) WLHG09 .25 oz/ft
(23 g/m) 44/44
S2CG22 (2) WLHG12 .25 oz/ft
(23 g/m) 39/39 S2HG22 (2) WLHG12 .25 oz/ft
(23 g/m) 39/39
S2CG92 WLHG09+WLHG12 .25 oz/ft
(23 g/m) 44/39 S2HG92 WLHG09+WLHG12 .25 oz/ft
(23 g/m) 44/39
S2CG99 UNHG09 .25 oz/ft
(23 g/m) 44/44 S2HG99 UNHG09 .25 oz/ft
(23 g/m) 44/44
S2CG22 UNHG12 .25 oz/ft
(23 g/m) 39/39 S2HG22 UNHG12 .25 oz/ft
(23 g/m) 39/39
S2CG92 UNHG09+UNHG12
.25 oz/ft
(23 g/m) 40/39
S2HG92 UNHG09+UNHG12
.25 oz/ft
(23 g/m) 44/39
NOTICE – to find charge adjustment
To nd the charge adjustment and system charge for any air handler and tubing1.
length:
Line Adjustment = (Line Charge/FT) x Line Length
System Total = Factory Charge + Line Adjustment
Round to the nearest ounce and allow for gauges and hoses.2.
Refrigerant Processing (continued)

S1CG/S1HG
S
in
g
le-Zone, S2CG/S2H
G
Dual-Zone
•
I
nstallation,
Op
eration and Maintenance Manual •
P/N 240007754, Rev. C [3/19/2010] 17 Made in the USA
5
15
25
35
90
110
130
150
170
250
310
370
430
490
550
65 75 85 95 105 115
Outdoor Temp (
°F)
Note: Minimum compressor superheat 5
°F
Compressor Superheat (
°F)
Low Pressure (psig)
High Pressure (psig)
Cooling Cycle
Model S1CG9000 & S1HG9000
with EMI's-WLH09 & UNH09 (R-410A Ref.)
Room Temp (
°F)
Relative Humidity 50%
85 °F
80 °F
75 °F
5
15
25
35
90
110
130
150
170
250
310
370
430
490
550
65 75 85 95 105 115
Outdoor Temp (
°F)
Note: Minimum compressor superheat 5
°F
Compressor Superheat (
°F)
Low Pressure (psig)
High Pressure (psig)
Cooling Cycle
Model S1CG9000 & S1HG9000
with EMI's-CAHG09 (R-410A Ref.)
Room Temp (
°F)
Relative Humidity 50%
85 °F
80 °F
75 °F
Single-zone Operation Charts
NOTICE
Performance data listed in this manual is subject to change without notice. For the most current
unit/system performance data, please refer to the ECR International listing of certied products
in the AHRI directory, at www.ahridirectory.org.

S1CG/S1HG
S
in
g
le-Zone, S2CG/S2H
G
Dual-Zone
•
I
nstallation,
Op
eration and Maintenance Manual •
Comfort where it counts 18 P/N 240007754, Rev. C [3/19/2010]
5
15
25
35
90
110
130
150
170
250
310
370
430
490
550
65 75 85 95 105 115
Outdoor Temp (
°F)
Note: Minimum compressor superheat 5
°F
Compressor Superheat (
°F)
Low Pressure (psig)
High Pressure (psig)
Cooling Cycle
Model S1CG2000 & S1HG2000
with EMI's-WLHG12 &UNHG12 (R-410A Ref.)
Room Temp (
°F)
Relative Humidity 50%
85 °F
80 °F
75 °F
5
15
25
35
90
110
130
150
170
250
310
370
430
490
550
65 75 85 95 105 115
Outdoor Temp (
°F)
Note: Minimum compressor superheat 5
°F
Compressor Superheat (
°F)
Low Pressure (psig)
High Pressure (psig)
Cooling Cycle
Model S1CG2000 & S1HG2000
with EMI's-CAHG12 (R-410A Ref.)
Room Temp (
°F)
Relative Humidity 50%
85 °F
80 °F
75 °F
Single-zone Operation Charts (continued)
NOTICE
Performance data listed in this manual is subject to change without notice. For the most current
unit/system performance data, please refer to the ECR International listing of certied products
in the AHRI directory, at www.ahridirectory.org.

S1CG/S1HG
S
in
g
le-Zone, S2CG/S2H
G
Dual-Zone
•
I
nstallation,
Op
eration and Maintenance Manual •
P/N 240007754, Rev. C [3/19/2010] 19 Made in the USA
5
15
25
35
90
110
130
150
170
250
310
370
430
490
550
65 75 85 95 105 115
Outdoor Temp (
°F)
Note: Minimum compressor superheat 5
°F
Compressor Superheat (
°F)
Low Pressure (psig)
High Pressure (psig)
Cooling Cycle
Model S1CG8000 &S1HG8000
with EMI's-WLHG24 &UNHG24 (R-410A Ref.)
Room Temp (
°F)
Relative Humidity 50%
85 °F
80 °F
75 °F
5
15
25
35
90
110
130
150
170
250
310
370
430
490
550
65 75 85 95 105 115
Outdoor Temp (
°F)
Note: Minimum compressor superheat 5
°F
Compressor Superheat (
°F)
Low Pressure (psig)
High Pressure (psig)
Cooling Cycle
Model S1CG8000 & S1HG8000
with EMI's-CAHG24 (R-410A Ref.)
Room Temp (
°F)
Relative Humidity 50%
85 °F
80 °F
75 °F
Single-zone Operation Charts (continued)
NOTICE
Performance data listed in this manual is subject to change without notice. For the most current
unit/system performance data, please refer to the ECR International listing of certied products
in the AHRI directory, at www.ahridirectory.org.

S1CG/S1HG
S
in
g
le-Zone, S2CG/S2H
G
Dual-Zone
•
I
nstallation,
Op
eration and Maintenance Manual •
Comfort where it counts 20 P/N 240007754, Rev. C [3/19/2010]
5
15
25
35
90
110
130
150
170
250
310
370
430
490
550
65 75 85 95 105 115
Outdoor Temp (
°F)
Note: Minimum compressor superheat 5
°F
Compressor Superheat (
°F)
Low Pressure (psig)
High Pressure (psig)
Cooling Cycle
Model S1CG4000 &S1HG4000
with EMI's-WLHG24 & UNHG24 (R-410A Ref.)
Room Temp (
°F)
Relative Humidity 50%
85 °F
80 °F
75 °F
5
15
25
35
90
110
130
150
170
250
310
370
430
490
550
65 75 85 95 105 115
Outdoor Temp (
°F)
Note: Minimum compressor superheat 5
°F
Compressor Superheat (
°F)
Low Pressure (psig)
High Pressure (psig)
Cooling Cycle
Model S1CG4000 & S1HG4000
with EMI's- CAHG24 (R-410A Ref.)
Room Temp (
°F)
Relative Humidity 50%
85 °F
80 °F
75 °F
Single-zone Operation Charts (continued)
NOTICE
Performance data listed in this manual is subject to change without notice. For the most current
unit/system performance data, please refer to the ECR International listing of certied products
in the AHRI directory, at www.ahridirectory.org.