Water Furnace 7 Series User manual

IM2703SN 08/20
Installation Information
Water Piping Connections
Hot Water Generator Connections
Electrical
Startup Procedures
Troubleshooting
Preventive Maintenance
7 Series 700R11 Installation Manual
Indoor Split Geothermal Heat Pump
• R-410A Refrigerant
• 033, 042, 050 ton Variable Speed
700R11

7 SERIES 700A11 INSTALLATION MANUAL
Table of Contents
Model Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
General Installation Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Water Quality Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Flow Centers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Closed Loop Ground Water Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Open Loop- Well Water Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Hot Water Generator Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Electrical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Air Handler General Installation Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Refrigeration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Line Set Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Electronic Thermostat Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Air Handler Electrical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Dimensional Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
The Aurora™ Advanced VS Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Operation Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Wiring Schematics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Pressure/Temperature Conversion Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Pressure Drop/Thermistor Resistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
Antifreeze Corrections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Correction Factor Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Compressor Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Refrigerant Circuit Guideline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Heat of Extraction/Rejection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Operating Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Air Handler EA Corrections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
SVH Blower Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Unit Start Up (NVZ Compressor Section). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Unit Start Up (SVH Air Handler Section) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Reference Calculations and Legend. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Preventive Maintenance and Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Service Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

4
7 SERIES 700R11 INSTALLATION MANUAL
Unit Nomenclature (Compressor Section)
Unit Nomenclature (Air Handler)
N V Z 042 * 1 1 0 C N N 0 K
1234-6789101112131415
Model
N –7Series
Compressor
V –Variable Speed
Cabinet Configuration
Z –Indoor Split
Unit Capacity2
033, 042, 050
Vintage
* – Factory Use Only
Voltage
1 – 208-230/60/1
Hot Water Generation
0 – None
1 – Hot Water Generation with Factory Installed Pump
Future Option
N –None
Controls
K –Aurora Variable Speed Control
w/ Full Monitoring
M –Aurora Variable Speed Control
w/ Full Monitoring and
UPC1
Future Options
0 – None
Future Options
N –None
Future Options
N –None
Water Coax Option
C –Copper
N –CuproNickel
Future Option
0 - None
Rev.: 4/2/20
N
16
Notes:
1UPC is not compatible with Symphony or IntelliZone2
2Compressor section must be matched with identical
model SVH air handler section. See Compatibility Table.
SVH 042 *00 2 C 1
1-3 4-6 7 8-9 10 11
Model
SVH – Series Air Handler
Unit Capacity2
Refrigeration (DX)
033 MBTUH
042 MBTUH
050 MBTUH1
Vintage
* = Factory Use Only
Electric Heat
00 – None
10 – 10kW (033 – 050 only) No Breakers
15 – 15kW (042 – 050 only) with Breakers
20 – 20kW (050only) with Breakers
Build
1 – WF
Position
1 – Multi-position3
Options
S –Standard
U –UPC4
Voltage
1-208-230/60/1
Air Coil
R –Refrigerant
Controls/ Motor
C –Aurora AHB/ Variable Speed ECM
Expansion Valve
2 – EEV
Rev.: 4/2/20
R
12
1
14
S
15 16
1
13
3- To fi el d co nve rt t he SVH t o bo t tomf lo w air d is ch ar ge. Th e S A HBC K ki t mu st b e or de red separ ate ly .
1- Air flow on the 050 unit in the horizontal configurationsshould be limited to 1900 cfm in coolingmode, or
condensate blow off may occur.
2- Compressor section must be matched with identical model SVH air handler section. See Compatibility Table
Notes:
4- UPC is not compatible with Symphony or IntelliZone2.

5
7 SERIES 700R11 INSTALLATION MANUAL
General Installation Information
Compatibility
The 7 Series Split uses a communicating control and the
system has been designed as a matched set, compressor
section to air handler section (see table). The 7 Series NVZ
compressor section is not compatible with the SAH air
handler or any other air handler except for the SVH. The SVH
is not compatible with any other compressor section other
than the mated NVZ.
Initial Inspection
When the equipment is received, all items should be care-
fully checked against the bill of lading to be sure all crates
and cartons have been received. Examine units for shipping
damage, removing the units from the packaging if neces-
sary. Units in question should also be internally inspected.
If any damage is noted, the carrier should make the proper
notation on the delivery receipt, acknowledging the dam-
age.
WARNING: Before performing service or main-
tenance operations on a system, turn off main
power switches to the indoor unit. If applicable,
turn off the accessory heater power switch. Elec-
trical shock could cause personal injury.
WARNING: This appliance is not intended for
use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack
of experience or knowledge, unless they have
been given supervision or instruction concerning
use of the appliance by a person responsible
for their safety. CHILDREN SHOULD BE
SUPERVISED TO ENSURE THAT THEY DO NOT
PLAY WITH THE APPLIANCE.
Safety Instructions
Installing and servicing heating and air conditioning
equipment can be hazardous due to system pressure and
electrical components. Only trained and qualified service
personnel should install, repair or service heating and air
conditioning equipment. Untrained personnel can perform
the basic maintenance functions of cleaning coils and
cleaning and replacing filters. All other operations should be
performed by trained service personnel. When working on
heating and air conditioning equipment, observe precautions
in the literature, tags and labels attached to the unit and
other safety precautions that may apply, such as the
following safety measures:
• Follow all safety codes.
• Wear safety glasses and work gloves.
• Use a quenching cloth for brazing operations.
• Have a fire extinguisher available for all brazing operations.
Moving and Storage
Move units in the normal “up” orientation. Units may be
moved and stored per the information on the packaging.
Do not stack more than three units in total height. Do not
attempt to move units while stacked. When the equipment
is received, all items should be carefully checked against
the bill of lading to be sure all crates and cartons have been
received. Examine units for shipping damage, removing
the units from the packaging if necessary. Units in question
should also be internally inspected. If any damage is noted,
the carrier should make the proper notation on the delivery
receipt, acknowledging the damage.
Figure 1: Typical Split System Application with Remote Blower Coil
Disconnect
Thermostat Wire
From Air Handler
Vibration Absorbing Pad or Air Pad
P/T Plugs
Water Out
Water In
Lineset To Air Handler
Insulated Suction Line
Supply
Duct
Wire To
Thermostat
Return
Duct
Condensate Drain
(must be trapped)
To Drain
Remote Air Handler
(Maximum Recommended Distance is
80' Between Units)
DHW In
DHW Out
Air Handler
7 Series
Indoor Split
Model
Rated
Airflow
(CFM)
Electric
Heat
(kW)
SVH033**2CR1S11 NVZ033 1200 10
SVH042**2CR1S11 NVZ042 1500 10, 15
SVH050**2CR1S11 NVZ050 1800 10, 15, 20
1/29/2020

6
7 SERIES 700R11 INSTALLATION MANUAL
General Installation Information cont.
Locking
Ring
Stainless
Steel
Snap Ring
Gasket
Support
Sleeve
Gasket
Material
Figure 2: Swivel Connections
Clearances
Clearances must be taken into consideration, and provided
for as follows:
• Refrigerant piping and connections - minimum
12” recommended.
• Maintenance and servicing access - minimum 24”
from front of unit recommended for blower
motor/coil replacement.
• Condensate drain lines routed to clear filter
and panel access.
• Filter removal - minimum 24” recommended.
Compressor Section Location
NOTE: Prior to setting the unit in place, remove and discard
the compressor shipping bolt located at the front of the
compressor mounting bracket.
Locate the compressor section in an indoor area, minimum
ambient of 45°F and maximum ambient of 100°F. Installing
the compressor section in an attic is not approved and could
result in loss of warranty. Installation is not recommended
in areas with excessive dirt and debris as this may be drawn
into the VS drive causing overheating of the VS drive. Loca-
tion should have enough space for service personnel to
perform maintenance or repair. Provide sufficient room to
make water, electrical and duct connection(s). If the unit is
located in a confined space, such as a closet, provisions must
be made for return air to freely enter the space by means
of a louvered door, etc. Any access panel screws that would
be difficult to remove after the unit is installed should be
removed prior to setting the unit.
When utilizing an existing line set, only flushing compounds
that vaporize should be used; which means they are pack-
aged in a pressurized disposable cylinder. It is preferable to
use a flushing agent that removes oil, water, and acid, plus,
is biodegradeable and non-toxic. The flushing agent should
be safe to use with both HCFC and HFC refrigerants. Once
a flushing agent has been selected, follow the instructions
provided with the product.
The first step should be purging the lines with nitrogen.
Purging with nitrogen first will remove some of the particu-
late and residual oil which will allow the flushing agent to
work better. Never blow the flushing agent through a com-
pressor, filter drier, or EEV as it will cause the components to
fail.
When flushing is complete and the final system is assembled,
an acid check should be preformed on the system. Acid test
kits are available from most HVACR distributors.
Connection to Air Coil
Figure 1 illustrates a typical 7 Series Split installation. Refer-
ence the Line Set Sizes table for typical line set diameters
and maximum length. Line sets over 80 feet are not recom-
mended. Longer line sets will significantly reduce capac-
ity and efficiency of the system. If the line set is kinked or
deformed and cannot be reformed, the bad section of pipe
should be replaced. A restricted line set will affect unit
performance. As in all R-410A equipment, a reversible liquid
line filter drier is required to ensure all moisture is removed
from the system. This drier should be replaced whenever
“breaking into” the system for service. All line sets should be
insulated with a minimum of 1/2 in. closed cell insulation. All
exterior insulation should be painted with UV resistant paint
or covering to ensure long insulation life.

7
7 SERIES 700R11 INSTALLATION MANUAL
General Installation Information cont.
Water Quality Guidelines
It
i
s
th
e respons
ibilit
y o
f
th
e sys
t
em
d
es
i
gner an
d
i
ns
t
a
lli
ng
contractor to ensure that acceptable water quality is
present and that all applicable codes have been met in
these installations. Failure to adhere to the guidelines in
the water quality table could result in loss of warranty.
In ground water situations where scaling could be heavy
or where biological growth such as iron bacteria will be
present, a closed loop system is recommended. The heat
exchanger coils in ground water systems may, over a period
of time, lose heat exchange capabilities due to a buildup
of mineral deposits inside. These can be cleaned, but only
by a qualified service mechanic, as special solutions and
pumping equipment are required. Hot water generator coils
can likewise become scaled and possibly plugged. In areas
with extremely hard water, the owner should be informed
that the heat exchanger may require occasional flushing.
Heat pumps with cupronickel heat exchangers are recom-
mended for open loop applications due to the increased
resistance to build-up and corrosion, along with reduced
wear caused by acid cleaning.
Water Treatment
Do not use untreated or improperly treated water. Equip-
ment damage may occur. The use of improperly treated
or untreated water in this equipment may result in scaling,
erosion, corrosion, algae or slime. Purchase of a pre-mix
antifreeze could significantly improve system reliability if
the water quality is controlled and there are additives in the
mixture to inhibit corrosion. There are many examples of
such fluids on the market today such as Environol™ 1000
(
pre-m
i
x e
th
ano
l)
, an
d
o
th
ers.
Th
e serv
i
ces o
f
a qua
lifi
e
d
water treatment specialist should be engaged to determine
what treatment, if any, is required. The product warranty
specifically excludes liability for corrosion, erosion or dete-
rioration of equipment.
The heat exchangers and water lines in the units are cop-
per or cupronickel tube. There may be other materials in
the buildings piping system that the designer may need to
take into consideration when deciding the parameters of
the water quality. If antifreeze or water treatment solution is
to be used, the designer should confirm it does not have a
detrimental effect on the materials in the system.
Contaminated Water
In applications where the water quality cannot be held to
prescribed limits, the use of a secondary heat exchanger is
recommended to separate the unit from the contaminated
water. The table outlines the water quality guidelines for
unit heat exchangers. If these conditions are exceeded, a
secondary heat exchanger is required. Failure to supply a
secondary heat exchanger where needed will result in a
warranty exclusion for primary heat exchanger corrosion or
failure.
Low Water Coil Limit
Set the freeze sensing switch SW2-1 on the Aurora Base
Control (ABC) printed circuit board for applications us-
ing a closed loop antifreeze solution to “LOOP” (15°F). On
applications using an open loop/ground water system (or
closed loop no antifreeze), set this dip switch to “WELL”
(30°F), the factory default setting. (Refer to the DIP Switch
Settings table in the Aurora Control section.)
Water Piping
The proper water flow must be provided to each unit
whenever the unit operates. To assure proper flow, read the
flow from the on-board water flow meter or use pressure/
temperature ports to determine the flow rate. These ports
should be located at the supply and return water connec-
tions on the unit. The proper flow rate cannot be accurately
set without reading the flow from the on-board flow meter
or measuring the water pressure drop through the refriger-
ant-to-water heat exchanger.
All source water connections are swivel piping fittings (see
Figure 2) that accept 1 in. male pipe threads (MPT).
The swivel connector has a rubber gasket seal similar to
a rubber hose gasket, which when mated to the flush end
of any 1 in. threaded pipe provides a leak-free seal without
the need for thread sealing tape or compound. Check to
ensure that the rubber seal is in the swivel connector prior
to attempting any connection. The rubber seals are shipped
attached to the waterline. To make the connection to a
ground loop system, mate the brass connector (supplied
in CK4LI connector kit) against the rubber gasket in the
swivel connector and thread the female locking ring onto
the pipe threads, while maintaining the brass connector in
the desired direction. Tighten the connectors by hand, then
gently snug the fitting with pliers to provide a leak-proof
joint. When connecting to an open loop (ground water)
system, thread the 1 in. MPT fitting (SCH80 PVC or copper)
into the swivel connector and tighten in the same manner
as noted above. The open and closed loop piping system
should include pressure/temperature taps for serviceability.
Never use flexible hoses smaller than 1 in. inside diameter
on the unit. Limit hose length to 10 ft. per connection.
Check carefully for water leaks.

8
7 SERIES 700R11 INSTALLATION MANUAL
Flow Centers
Pressurized Flow Centers:
• Part numbers: FC1-GL, FC2-GL, FC1-FPT, FC2-
FPT,FCV1B-GL, FCV2B-GL
• Used with one or multiple heat pumps on a single
loop (need to follow installation manual and install
check valves)
• Fixed speed and variable speed pumping available,
although variable speed pumping is recommended
with the 7 Series
• Small footprint for mounting location flexibility.
• Can be mounted in several orientations (see flow
center manual for acceptable orientations)
• Injection molded and insulated cabinet
• Brass 3-way valves
• Standard hose kits available
Non-Pressurized Flow Center:
• Part numbers: FC1-GLNP, FC2-GLNP, FCV1B-GLNPP,
FCV2B-GLNPP
• Used with a single heat pump on a single loop (or
two units if using pump sharing feature). Multiple
units cannot be installed in parallel with multiple heat
pumps on the same loop.
• Fixed speed and variable speed pumping available,
although variable speed pumping is recommended
with the 7 Series
• Floor mounted (larger footprint than pressurized flow
centers)
• Design allows for air and debris separation, and easy
fluid checking or addition
• Insulated plastic cabinet
• Composite 3-way valves
• GLNPP flow centers use standard hose kit
Non-Pressurized Dual Circuit Flow
Centers:
• Part numbers: FC3-GLNPD, FC4-GLNPD, FCV2AB-
GLNPD, FCV2BB-GLNPD, FCV3CB-GLNPD, FCV4AB-
GLNPD
• Designed for applications with two geothermal heat
pumps by eliminating the need for T’s, additional
piping, check valves, and pump sharing wiring.
• Multiple pump configurations (fixed and variable
speed) to match your flow requirements.
• Multiple pump configurations (fixed speed and
variable speed pumping available) although variable
speed pumping is recommended with the 7 Series
• Insulated sheet metal cabinet
• Brass and composite 3-way valves
• Design allows for air and debris separation, and easy
fluid checking or addition
• Floor mounted (larger footprint than pressurized flow
centers)
• Standard hose kits available
Material Copper 90/10 Cupronickel 316 Stainless Steel
pH Acidity/Alkalinity 7 - 9 7 - 9 7 - 9
Scaling Calcium and
Magnesium Carbonate
(Total Hardness)
less than 350 ppm
(Total Hardness)
less than 350 ppm
(Total Hardness)
less than 350 ppm
Corrosion
Hydrogen Sulfide Less than 0.5 ppm (rotten egg
smell appears at 0.5 ppm) 10 - 50 ppm Less than 1 ppm
Sulfates Less than 125 ppm Less than 125 ppm Less than 200 ppm
Chlorine Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm
Chlorides Less than 20 ppm Less than 125 ppm Less than 300 ppm
Carbon Dioxide Less than 50 ppm 10 - 50 ppm 10 - 50 ppm
Ammonia Less than 2 ppm Less than 2 ppm Less than 20 ppm
Ammonia Chloride Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm
Ammonia Nitrate Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm
Ammonia Hydroxide Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm
Ammonia Sulfate Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm
Total Dissolved Solids (TDS) Less than 1000 ppm 1000 - 1500 ppm 1000 - 1500 ppm
LSI Index +0.5 to -0.5 +0.5 to -0.5 +0.5 to -0.5
Iron Fouling
(Biological Growth)
Iron, FE2+ (Ferrous)
Bacterial Iron Potential < 0.2 ppm < 0.2 ppm < 0.2 ppm
Iron Oxide Less than 1 ppm, above this
level deposition will occur
Less than 1 ppm, above this
level deposition will occur
Less than 1 ppm, above this
level deposition will occur
Erosion
Suspended Solids Less than 10 ppm and filtered
for max. of 600 micron size
Less than 10 ppm and filtered
for max. of 600 micron size
Less than 10 ppm and filtered
for max. of 600 micron size
Threshold Velocity
(Fresh Water) < 6 ft/sec < 6 ft/sec < 6 ft/sec
NOTES: Grains = ppm divided by 17
mg/L is equivalent to ppm
2/22/12
Water Quality Guidelines cont.

9
7 SERIES 700R11 INSTALLATION MANUAL
Figure 4: Typical Split System Application Closed Loop - Earth Coupled
Closed Loop - Ground Source Systems
NOTE: For closed loop systems with antifreeze protection,
set SW2-1 to the 15˚F (LOOP) position. (Refer to the DIP
Switch Settings table in the Aurora Control section.)
Once piping is completed between the unit, pumps and
the ground loop (see figure below), final purging and
charging of the loop is required. A flush cart (or a 1.5 HP
pump minimum) is needed to achieve adequate flow
velocity in the loop to purge air and dirt particles from
the loop itself. Antifreeze solution is used in most areas to
prevent freezing. Flush the system adequately to remove
as much air as possible then pressurize the loop to a static
pressure of 40-50 psi (summer) or 50-75 psi (winter). This
is normally adequate for good system operation. Loop static
pressure will fluctuate with the seasons. Pressures will be
higher in the winter months than during the cooling season.
This fluctuation is normal and should be considered when
initially charging the system.
NOTE: Additional information can be found in Flow
Center installation manual and Flush Cart manual.
NO
TE
:
Additi
o
nal inf
o
rmati
o
n
c
an
Ce
nt
e
r installati
o
n manual and Flu
s
Vibration Absorbing Pad or Air Pad P/T Plugs
Water Out
Water In
DHW In
DHW Out
Disconnect
Thermostat Wire
From Air Handler
Lineset
To Air
Handler
Insulated
Flow Center
Electrical Supply
GeoLink
FCV2B-GL
Flow Center
To Loop
Rubber Hose Connector
Kit CK4LI or CK4L-GLI
After pressurization, be sure to turn the venting (burping)
screw in the center of the pump two (2) turns open (water
will drip out), wait until all air is purged from the pump,
then tighten the plug. Ensure that the loop pumps provide
adequate flow through the unit(s) by checking the pressure
drop across the heat exchanger and comparing it to the unit
capacity data in this catalog. 2.5 to 3 gpm of flow per ton of
cooling capacity is recommended in earth loop applications.

10
7 SERIES 700R11 INSTALLATION MANUAL
Closed Loop - Ground Source Systems cont.
Figure 5a: Primary/Secondary Hook-up
7 Series to
Electromechanical Units
To Electromechanical Unit
7 Series to
Envision Units
Envision Unit #2
7 Series Unit #1 7 Series Unit #1 7 Series Unit #1
7 Series Unit #2
7 Series to
7 Series Units
CS
VSSLOSLI
OUTIN C C
VSSLOSLI
OUTIN C C
With pump
wired to
Unit 2
With pump
wired to Unit 1
VSSLOSLI
OUTIN C C
Shut
Down CC
SL1
In
SL1
Out
With pump
wired to
Unit 1
With pump
wired to
Unit 2
VSSLOSLI
OUTIN C C
Multiple Units on One Flow Center
When two units are connected to one loop pumping sys-
tem, pump control is automatically achieved by connecting
the SL terminals on connector P2 in both units with 2-wire
thermostat wire. These terminals are polarity dependant (see
Figure 5a). The loop pump(s) may be powered from either
unit, whichever is more convenient. If either unit calls, the loop
pump(s) will automatically start. The use of two units on one
flow center is generally limited to a total of 20 gpm capacity.
It is recommended that water solenoid valves be installed on
heat pumps that share a flow center. This is to allow water
flow through only the heat pump that has a demand. Circu-
lating fluid through a heat exchanger of a system that is not
operating could be detrimental to the long term reliability of
the compressor.
Figure 6: Primary/Secondary Hook-up
7 Series to
Electromechanical Units
To Electromechanical Unit
7 Series to
Envision Units
Envision Unit #2
7 Series Unit #1 7 Series Unit #1 7 Series Unit #1
5 or 7 Series Unit #2
7 Series to
5 or 7 Series Units
CS
With pump
wired to
Unit 2
With pump
wired to Unit 1 With pump
wired to
Unit 1
With pump
wired to
Unit 2
Shut
Down CC
SL1
In
SL1
Out
VSPUMPSLAVE
OUTIN C C 12
VSPUMPSLAVE
OUTIN C C 12
VSPUMPSLAVE
OUTIN C C 12
VSPUMPSLAVE
OUTIN C C 12
Variable Speed Pump Setup
When using a variable speed pump flow center (FCV
type) the use of an AID Tool will be necessary to adjust
minimum and maximum flow rates. The factory default is:
minimum=50% and maximum=100% speed levels. See the
7 Series Variable Speed Pump Setup and Modulating Water
Valve Setup instructions within the Unit Startup section
which is located in the back of this manual. Always ensure
that there is adequate flow for the heat pump. See Recom-
mended Minimum/Maximum Flow Rates table.
NOTE: When sharing a flow center, the variable speed heat
pump should be the primary unit. When two variable speed
heat pumps share a flow center, the larger capacity heat
pump should be the primary unit.
Recommended Minimum/Maximum Flow Rates
Model
and Size
Closed Loop Open Loop
Min. Flow Rate Max. Flow Rate Min. Flow Rate Max. Flow Rate
GPM GPM GPM GPM
033 5.0 12.0 5.0 8.0
042 5.0 15.0 5.0 10.0
050 5.0 18.0 5.0 12.0
3/18/2020

11
7 SERIES 700R11 INSTALLATION MANUAL
Figure 6: Typical Split System Application Open Loop -
Well Water
Open Loop - Well Water Systems
Typical open loop piping is shown below. Always maintain
water pressure in the heat exchanger by placing water
control valves at the outlet of the unit to prevent mineral
precipitation. Use a closed, bladder-type expansion tank
to minimize mineral formation due to air exposure. Ensure
proper water flow through the unit by checking pressure
drop across the heat exchanger and comparing it to the
figures in unit capacity data tables in the specification
catalog. 1.5-2 gpm of flow per ton of cooling capacity is
recommended in open loop applications.
Discharge water from the unit is not contaminated in any
manner and can be disposed of in various ways, depending
on local codes, i.e. recharge well, storm sewer, drain field,
adjacent stream or pond, etc. Most local codes forbid
the use of sanitary sewer for disposal. Consult your local
building and zoning departments to assure compliance in
your area.
NOTE: For open loop/groundwater systems or systems
that do not contain an antifreeze solution, set SW2-Switch
#1 to the 30°F (WELL) position. (Refer to the DIP Switch
Settings table in the Aurora Control section.) Slow opening/
closing solenoid valves (type V or VM) are recommended
to eliminate water hammer.
Vibration Absorbing Pad or Air Pad P/T Plugs
Disconnect
Thermostat Wire
From Air Handler
Boiler Drains for
System Flushing
Water Solenoid
Control Valve
Rubber Bladder
Pressure Tank
Lineset
To Air Handler
Flow
Regulator
Shut-Off Valves
Water Out
Water In
From W ell
Figure 9d: Open Loop Solenoid Valve Connection Option
Typical quick operating external 24V water solenoid valve
(type PPV100 or BPV100) wiring.
NOTE: SW2-4 and SW2-5 should be “OFF” to cycle with the compressor.
Acc Com
Acc NC
Acc NO
1
2
3
C
R
P1
P2
SV
Solenoid
Valve
ABC Board
Figure 9a: Modulating Water Valve Connection Option
Typical 0-10VDC modulating water valve.
Figure 9b: Open Loop Solenoid Valve Connection Option
Typical slow operating external 24V water solenoid valve
(type V) wiring.
C
R
Acc Com
ACC NC
Acc NO
C
W/Y
(Type V)
V100FPT
ABC Board
Note: SW2-4 should be ‘ON’ and SW2-5 should be ‘OFF’.
Figure 9c: Wiring diagram for dual water valve
installations, one type V slow operating solenoid and one
BPV100/PPV100 quick operating solenoid.
C
W/Y
CCG or CC GND
CC
CC
U
SV CC2 or CCHI
Logic Board
Taco Valve
V100FPT
(Type V)
BPV/PPV
Solenoid
Compressor
Contactor
Coil
VS
GN D
24 VA C
0-10DC
1
2
3
R
C
ABC BO ARD
AXB BOARD
MODULATING VALVE
1
2
Red
White
Green
NO TE : 13

12
7 SERIES 700R11 INSTALLATION MANUAL
Figure 9: Hot Water Generator Installation in
Preheat Tank
Figure 8: Typical Hot Water Generator Installation
The heat reclaiming hot water generator coil is vented
double-wall copper construction and is suitable for potable
water. To maximize the benefits of the hot water generator
a minimum 50-gallon water heater is recommended. For
higher demand applications, use an 80-gallon water heater
or two 50-gallon water heaters connected in a series as
shown below. Two tanks plumbed in series is recommended
to maximize the hot water generator capability. A geo
storage tank should not be used in this application unless
it is plumbed in a series with an electric water heater. The
geo storage tank is equipped with a single 4500 Watt
element and will not be able to provide adequate water
heating if used as a standalone water heater. Electric water
heaters are recommended. Make sure all local electrical
and plumbing codes are followed when installing a hot
water generator. Residential units with hot water generators
contain an internal circulator and fittings. A water softener is
recommended for hard water applications (greater than 10
grains or 170 ppm total hardness).
NOTE: Using a preheat tank, as shown in Figure 9, will
maximize hot water generator capabilities.
Water Tank Preparation
To install a unit with hot water generator, follow these
installation guidelines.
1. Turn off the power to the water heater.
2. Attach a water hose to the water tank drain
connection and run the other end of the hose to an
open drain or outdoors.
3. Close the cold water inlet valve to the water heater tank.
4. Drain the tank by opening the valve on the bottom
of the tank, then open the pressure relief valve or hot
water faucet.
5. Flush the tank by opening the cold water inlet valve to
the water heater to free the tank of sediments. Close
when draining water is clear.
6. Disconnect the garden hose and remove the drain
valve from the water heater.
7. Refer to Plumbing Installation and Hot Water
Generator Startup.
CAUTION: Elements will burn out if energized dry.
Hot Water Generator Connections
Drain Valve
In
P/T Relief
Va l v e
Cold
Water In
Hot
Water Out
HWG
Water In
HWG
Water Out
Venting Waste Valve
or Vent Coupling
Ý[Ý[ÝWHH
Drain Valve Drain Valve
In
P/T Relief
Valve
Venting Waste Valve
or Vent Coupling
HWG
HWG
Ý[Ý[ÝWHH
Water In
Hot
Water Out
Cold
Water In
Water Out
P/T Relief
Valve
Note: This is the preferred configuration as it maximizes hot
water generator capability.

13
7 SERIES 700R11 INSTALLATION MANUAL
Plumbing Installation
1. Inspect the dip tube in the water heater cold inlet
for a check valve. If a check valve is present it must
be removed or damage to the hot water generator
circulator will occur.
2. Remove drain valve and fitting.
3. Thread the 3/4-inch NPT x 3-1/2-inch brass nipple into
the water heater drain port.
4. Attach the center port of the 3/4-inch FPT tee to the
opposite end of the brass nipple.
5. Attach the 1/2-inch copper to 3/4-inch NPT adaptor to
the side of the tee closest to the unit.
6. Install the drain valve on the tee opposite the adaptor.
7. Run interconnecting tubing from the tee to hot water
generator water out.
8. Cut the cold water “IN” line going to the water heater.
9. Insert the reducing solder tee in line with cold water
“IN” line as shown.
10.
Run interconnecting copper tubing between the unit hot
water generator water “IN” and the tee (1/2-inch nominal).
The recommended maximum distance is 50 feet.
11. To prevent air entrapment in the system, install a vent
coupling at the highest point of the interconnecting lines.
12. Insulate all exposed surfaces of both connecting water
lines with 3/8-inch wall closed cell insulation.
NOTE: All plumbing and piping connections must comply
with local plumbing codes.
Hot Water Generator Connections cont.
Hot Water Generator Switch
The hot water generator switch is taped in the disabled
position at the factory.
Hot Water Generator Startup
1. Turn the hot water generator switch to the “ON”
position. The hot water generator switch will allow the
hot water generator pump to be enabled or disabled by
the service technician or homeowner.
2. Close the drain valve to the water heater.
3. Open the cold water supply to the tank.
4. Open a hot water faucet in the building to bleed air from
the system. Close when full.
5. Open the pressure relief valve to bleed any remaining air
from the tank, then close.
6. If so equipped, turn the venting (burping) screw in the
center of the pump two (2) turns open (water will drip
out), wait until all air is purged from the pump, then
tighten the plug. Use vent couplings to bleed air from
the lines.
7. Carefully inspect all plumbing for water leaks and
correct as required.
8. Before restoring electrical supply to the water heater,
adjust the temperature setting on the tank.
• On tanks with both upper and lower elements,
the lower element should be turned down to
the lowest setting, approximately 100°F. The
upper element should be adjusted to 120°F to
130°F. Depending upon the specific needs of
the customer, you may want to adjust the upper
element differently.
• On tanks with a single element, lower the
thermostat setting to 120°F.
9. After the thermostat(s) is adjusted, replace the access
cover and restore electrical supply to the water heater.
10.Make sure that any valves in the hot water generator
water circulating circuit are open.
11. Turn on the unit to first stage heating.
12. Use an AID Tool to enable HWG and select the desired
water heating set point. Selectable set points are 100°F
– 140°F in 5°F increments (default 130°F). From the Main
Menu of the AID Tool select Setup, then AXB Setup.
13. The hot water generator pump should be running. When
the pump is first started, turn the venting (burping)
screw (if equipped) in the center of the pump two (2)
turns open until water dribbles out, then replace. Allow
the pump to run for at least five minutes to ensure that
water has filled the circulator properly. Be sure the
switch for the hot water generator pump switch is “ON”.
14. The temperature difference between the water entering
and leaving the hot water generator should be 5°F to
15°F. The water flow should be approximately 0.4 gpm
per ton of nominal cooling.
15. Allow the unit to heat water for 15 to 20 minutes to be
sure operation is normal.
CAUTION: Never operate the HWG circulating
pump while dry. If the unit is placed in operation
before the hot water generator piping is
connected, be sure that the pump switch is set
to the OFF position.

14
7 SERIES 700R11 INSTALLATION MANUAL
General
Be sure the available power is the same voltage and phase
as that shown on the unit serial plate. Line and low voltage
wiring must be done in accordance with local codes or
the National Electric Code, whichever is applicable. The
compressor has no internal overload. The circuit breaker in
the control box is the overload protection for the drive and
the compressor. Bypassing the circuit breaker could result
in damage to the compressor and voiding the warranty.
Unit Power Connection
Connect the incoming line voltage wires to L1 and L2 of
the contactor as shown in Figure 13c for single-phase unit.
Consult the Unit Electrical Data in this manual for correct
fuse sizes.
Open lower front access panel. Remove ground fastener
from bottom of control box (Figure 13b). Swing open
control box (Figure 13a). Insert power wires through
knockouts on lower left side of cabinet. Route wires
through left side of control box and connect to contactor
and ground (Figure 13c). Close control box and replace
grounding fastener before unit startup.
Ground Fastener
must be installed for
proper unit ground
Wire Insert
Location
Figure 13c:
Line Voltage 208-230/60/1 control box
Figure 13b:
Wire access (control box closed)
Figure 13a:
Wire access (control box open)
Electrical Information
Accessory Relay
A set of “dry” contacts has been provided to control
accessory devices, such as water solenoid valves on open
loop installations, electronic air cleaners, humidifiers, etc.
This relay contact should be used only with 24 volt signals
and not line voltage power. The relay has both normally
open and normally closed contacts and can operate with
either the blower or the compressor. Use DIP switch SW2-
4 and 5 to cycle the relay with blower, compressor, or
control a slow opening water valve. The relay contacts are
available on terminals #1 and #3 for normally closed, and
on terminals #2 and #3 for normally open on P2.
A second configurable accessory relay is provided on the
AXB board. When powering high VA draw components
such as electronic air cleaners or VM type open loop water
valves, R should be taken ‘pre-fuse’ from the ‘R’ quick
connect on the ABC board and not the ‘post-fuse’ ‘R’
terminal on the thermostat connection. If not, blown ABC
fuses might result.
208 Volt Operation
All 208/230 units are factory wired for 230 volt operation.
For 208 volt operation, the red and blue transformer wires
must be switched on terminal strip PS.
L1
L2
PB1
CB
L1
L2
Compressor
Drive
Overload
CAUTION: Frequent cycling of power to the drive
can damage the drive! Wait at least 5 minutes
between cycles (connecting and disconnecting
power to the drive).

15
7 SERIES 700R11 INSTALLATION MANUAL
Variable Speed Flow Center
Single Pump Variable Speed Flow Center
If a variable speed single pump flow center is used, the flow center will come with two red and one green wires for the
high voltage wiring. The variable speed pump MUST be powered at all times and therefore MUST be wired to the “L” side
of electrical system or damage to the pump will occur (pump cannot be powered from “T” side of compressor contactor).
Connect the red HIGH VOLTAGE wires to L1 and L2 on the AXB, connect the green GROUND wire to the ground lug, as
shown in figure 4a. Follow all electrical and local codes for wiring.
The variable speed UPMXL 25-124 pump also requires a low voltage signal to operate properly, if the low voltage signal isn’t
present the pump will run at 100%. Route the low voltage harness connected to the pump to the AXB screw terminals on
P2 and P3 connectors per diagram 4b.
Both the low and high voltage harnesses are labeled. The pump will be automatically cycled as required either by the unit
or by a signal from another unit sharing the same flow center. Pumps are protected by circuit breakers as shown on the unit
schematic.
Figure 4b: Single VS Pump Low Voltage Wiring
Electrical Information cont.
Figure 4a: Single VS Pump High Voltage Wiring
gg ggg
Aurora AXB™
Aurora AXB
Note: Aurora AXB must be used to control
the UPMXL 25-124 pump.

16
7 SERIES 700R11 INSTALLATION MANUAL
Electrical Information cont.
Variable Speed Flow Center cont.
Two Pump Variable Speed Flow Center
If a variable speed two pump flow center is used, the flow center will come with four red and two green wires for the high
voltage wiring. The second set of (2) red and (1) green wires is provided for installation flexibility. The variable speed pump
MUST be powered at all times and therefore MUST be wired to the “L” side of electrical system or damage to the pump will
occur (pump cannot be powered from “T” side of compressor contactor). The UPMXL 25-124 pump has screw terminals for
the high voltage connection. Connect the red HIGH VOLTAGE wires to L1 and L2 on the AXB, connect the green GROUND
wire to the ground lug, as shown in figure 4d. Follow all electrical and local codes for wiring.
The variable speed UPMXL 25-124 pump also requires a low voltage signal to operate properly, if the low voltage signal
isn’t present the pump will run at 100%. Route the low voltage harness connected to the right hand pump to the AXB screw
terminals on P2 and P3 connectors. Route the low voltage harness connected to the left hand pump to the AXB screw
terminals on P2 and P3 connector per figure 4c. The black wire on the left hand pump will have a label on it that reads “DO
NO CONNECT THIS WIRE. ONLY ONE VS PUMP FEEDBACK SIGNAL CAN BE CONNECTED TO AXB BOARD”.
Both the low and high voltage harnesses are labeled. The pump will be automatically cycled as required either by the unit
or by a signal from another unit sharing the same flow center. Pumps are protected by circuit breakers as shown on the unit
schematic.
NOTE: Both pumps will speed up and slow down together.

17
7 SERIES 700R11 INSTALLATION MANUAL
Electrical Information cont.
Figure 4c: Two VS Pump Low Voltage Wiring
Figure 4d: Two VS Pump High Voltage Wiring
Variable Speed Units cont.
Two Pump Variable Speed Flow Center cont.
The use of the black wire on the left hand pump is ONLY to be connected for troubleshooting of the pumps. The left hand
pump will have a closed end splice connector crimped to the black wire. Cut the closed end splice connector off and strip
the wire. During troubleshooting remove the black wire from the right hand pump from the AXB P3 VS DATA S screw
terminal and connect the black wire from the left hand pump to the same location. After the troubleshooting is complete
remove the black wire from the left hand pump and connect the black wire from the right hand pump.
Place electrical tape or wire nut on the left hand pump black wire. The two pump variable speed flow center cannot have
each UPMXL 25-124 pump wired to two separate heat pumps otherwise damage to the pumps will occur (unless it’s an NPD
Series flow center).
Aurora AXB
Aurora AXB
Note: Aurora AXB must be used to control
the UPMXL 25-124 pump.

18
7 SERIES 700R11 INSTALLATION MANUAL
Electrical Information cont.
Pump Power Wiring
See Figure 14 for electrical connections from control box
to pumps.
FC1/FC2 style flow centers with fixed speed pumps
connect to PB1 in the control box. If using a variable speed
pump it should be connected to L1 and L2 on the AXB.
Variable speed pump flow centers are recommended for
use with the 7 Series so the water flow is adjusted along
with the compressor speed. Using fixed speed pumps
with the 7 Series will cost considerably more to operate
than variable speed pumps and may cause system faults
because the flow isn’t being adjusted as it needs in certain
operating conditions.
Figure 14: Pump Wiring 208-230/60/1
(Optional)
External Loop Pump(s)
(ex. UP26-99)
208-230/60/1
1/2 hp Max
(Highly Recommended)
External Loop Pump(s)
(ex. UP26-99)
208-230/60/1
1/2 hp Max
L1
L2
PB1
CB Wire Nuts
Red
Red

19
7 SERIES 700R11 INSTALLATION MANUAL
Safety Considerations
Warning: Before performing service or maintenance
operations on a system, turn off main power switches to
the equipment. Electrical shock could cause personal
injury.
Installing and servicing heating and air conditioning
equipment can be hazardous due to system pressure and
electrical components. Only trained and qualified service
personnel should install, repair or service heating and air
conditioning equipment. Untrained personnel can perform
the basic maintenance functions of cleaning coils and
cleaning and replacing filters. All other operations should
be performed by trained service personnel. When work-
ing on heating and air conditioning equipment, observe
precautions in the literature, tags and labels attached to the
unit and other safety precautions that may apply. Follow
all safety codes. Wear safety glasses and work gloves. Use
a quenching cloth for brazing operations and have a fire
extinguisher available.
Note: Local codes and regulations take precedent over
any recommendations by the manufacturer. In addition to
conforming to manufacturer’s and local municipal building
codes, the equipment should also be installed in accor-
dance with the National Electric Code and National Fire
Protection Agency recommendations.
Moving and Storage
If the equipment is not needed for immediate installation it
should be left in its shipping carton and stored in a clean,
dry area. Units must only be stored or moved in the normal
“up” orientation.
Unit Location
Locate the unit in an indoor area that allows for easy
removal of the filter and access panels (the air handler
units are not approved for outdoor installation). Location
should have enough space for service personnel to perform
maintenance or repair. Provide sufficient room to make
refrigerant, electrical and duct connections. If the unit is
located in a confined space, such as a closet, provisions
must be made for return air to freely enter the space by
means of a louvered door, etc. The air handler section may
be installed on any level surface strong enough to sup-
port its weight. When installed in a closet or on a stand, it
should be mounted on vibration absorbing material slightly
larger than the base to minimize vibration transmission to
the building structure.
When installed in an attic or above a drop ceiling, the
installation must conform to all local codes. If the unit is
suspended and installed in the horizontal position, the en-
tire length of the unit should be supported. If the applica-
tion requires the air handler to be installed above a finished
space then the unit should be set in a full size secondary
drain pan. In this case the secondary drain pan should be
set on top of a vibration absorbing mesh. The secondary
drain pan is usually placed on a plywood base.
A secondary drain pan should be used when equipment is
installed over a finished living area to provide protection
from water damage in case of plugging of the air handler
primary drain line. The secondary drain line should termi-
nate somewhere that is easily visible by the homeowner. Be
certain to show the homeowner the termination location of
the secondary drain line and to explain its purpose.
Duct System
Many of the problems encountered with heating and
cooling systems can be linked to improperly designed or
installed duct systems. It is therefore highly important for
a successfully operating system that the duct system be
designed and installed properly.
The duct system should be sized to handle the design air-
flow quietly and efficiently. To maximize sound attenuation
of the unit blower, the supply and return plenums should
include an internal duct liner of fiberglass or constructed
of ductboard for the first few feet. On systems employing
a metal duct system, canvas connectors should be used
between the unit and the ductwork. If air noise or exces-
sive airflow is a problem, the blower speed can be changed.
When installing a central air return grille in or near the
living space, it is recommended to design the ductwork so
that the grille is not in direct line with the return opening in
the air handler. One or two elbows will also assure a quieter
installation and system. Application of the unit to un-insu-
lated metal ductwork in an unconditioned space will cause
poor unit performance and allow condensation to form on
the duct and possibly cause damage to the structure.
If the unit is connected to existing ductwork, check the
duct system to ensure that it has the capacity to accom-
modate the air required for the unit application. If the duct
is too small, as in the replacement of heating only systems,
larger ductwork should be installed. All existing ductwork
should be checked for leaks and repaired as necessary.
Air Handler General Installation Information
Air Handler Sizing Selection
Air Handler 7 Series
Indoor Split Model
Rated Airflow
(CFM)
Electric Heat
(kW)
SVH033**2CR1S11 NVZ033 1200 10
SVH042**2CR1S11 NVZ042 1500 10, 15
SVH050**2CR1S11 NVZ050 1800 10, 15, 20
1/29/2020

20
7 SERIES 700R11 INSTALLATION MANUAL
Air Handler General Installation Information cont.
Condensate Deflector Shield
A condensate deflector shield comes attached to the
vertical A-coil drain pan. If the unit is being installed in
either the top flow or bottom flow configuration, no change
is necessary.
If the air handler is being installed in either horizontal
position, the condensate deflector shield will need to be
removed from the vertical pan and placed on the horizontal
pan. Remove the condensate deflector shield and the
S-clips that attach it to the vertical pan. Reposition the
condensate deflector shield and S-clips on the horizontal
drain pan.
The condensate sensor bracket will also need to be moved
and attached to the horizontal pan.
Note: Condensate deflector shield should be installed in
the S-clip section which is inside the drain pan edge.
Return Duct Attachment & Component Location
Condensate Deflector on Horizontal Drain Pan Edge FIGURE 6: S-Clip Installation
FRONT VIEW
BLOWER COMPARTMENT
VERTICAL DRAIN PAN
CONDENSATE
DEFLECTOR
CONDENSATE
SENSOR BRACKET
REFRIGERANT LINE
CONNECTIONS
SECONDARY DRAIN
UPFLOW 3/4" THREADED
WHEN ATTACHING DUCT WORK WITH SCREWS -
KEEP SCREWS WITHIN 5/8" OF SIDES AND BACK OF
AIR HANDLER. MAXIMUM LENGTH OF SCREW 3/4".
COIL COMPARTMENT
(Access panel removed)
HORIZONTAL DRAIN PAN
HORIZONTAL
SECONDARY DRAIN
HORIZONTAL
PRIMARY DRAIN
ALTERNATE DRAIN
CONNECTIONS
UPFLOW
FILTER DOOR
DUCT SHOULD BE
TAPED TO CABINET
FRONT BRACKET
(NO SCREWS) RETURN AIR
DUCT
PRIMARY DRAIN UPFLOW
3/4" THREADED
DUCT WORK MAY BE
FASTENED CAUTIOUSLY
WITH SCREWS TO THE
SIDES AND REAR OF UNIT
SIDE VIEW
YBE
A
D
E
O
OW
E
E
D
)
AL
CO
U
P
FI
DU
TAP
F
A
C
T
T
S-CLIPS ON HORIZONTAL PAN
CONDENSATE
DEFLECTOR
CONDENSATE
SENSOR BRACKET
FEEDER
TUBES
S-CLIP
DRAIN
PAN
WALL
CONDENSATE
DEFLECTOR
CON
DE
W