Econar FC3 Series User manual

Installation
and
Operating Instructions
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TABLE OF CONTENTS
Section Title Page
L Introduction to ECONAR Heat Pumps
Unit L ocati on/lVlounting
Duct System/Blower
II.
ur.
IV.
v.
vr.
vII.
,
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4
Circulating Fump
A. Circulation Fluid
Condensate Drain
Electrical Service
24Yolt Control Circuit
A. Transformer
B. Thermostat
C. Internal Controls
1) Blower Operation
2) Circulating Pump Operation
3) Electric Resistance Operation
V[I. Startup .. .... 6
IX. Service 6
A. Filter
B. Preseasonlnspection
X. Thermostat Operation 7
XI. Troubleshooting Guide For Unit Operation 7
XII. Additional Figures and Tables.
XI[. Performance Data. ...... 12
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5
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I. INTRODUCTION TO
ECONAR HEAT PUMPS
ECONAR Energy Systems, Corp. has been producing
geothermal heat pumps in Minnesota for over fifteen
years. The cold winter climate has driven the design of
ECONAR Energy System's heating and cooling
equipment to what is known as a "Cold Climate"
geothermal heat pump. This cold climate technology
focuses on maximizing the energy savings available in
heating dominated regions without sacrificing comfort.
Extremely efficient cooling, dehumidification and
optional domestic hot water heating are also provided in
one neatly packaged system.
This guide discusses ECONAR's line of Hydronic Fan
Coils, which are connected to a hydronic heat pump in
order to circulate heated and chilled water through a heat
exchanger, and then blow air across the heat exchanger in
order to heat or cool a space.
Safety and comfort are both inherent to, and designed into
ECONAR Energy System's geothermal heat pumps.
Since the system runs completely on electrical energy,
your entire home can have the safety ofbeing gas free.
The best engineering and quality control is built into
every ECONAR heat pump built. Proper application and
correct installation will assure excellent performance and
customer satisfaction.
ECONAR's commitment to quality is written on the side
of every heat pump we build. Throughout the building
process the technicians that build each unit sign their
names to the quality assurance label after completing their
inspections. As a final quality test, every unit goes
through a frrll run test where the performance and
operation is verified in both the heating and cooling
modes. No other manufacturer goes as far as to run a full
performance check to assure system quality.
x* IMPORTANT**
Service of this equipment can be hazardous due to 230
volt electrical energy. Only trained or qualified service
personnel should install, repair or service this equipment.
I Warning - Turn off the main switches before
performing service or maintenance to this unit. Electrical
shock can cause personal injury. The installer is
responsible to see that all local electrical, plumbing,
heating and air conditioning codes are followed.
Locate the unit in an indoor area where the ambient
temperature will remain above 45"F. Servicing of the fan
coil is done primarily from the front. Rear access is
desirable and should be provided when possible. A field
installed drain pan is required under the entire unit where
accidental water discharge could damage surrounding
floors, walls or ceilings.
VCAUTION -Do not tip units on their side during
transportation or installation, or severe internal damage
may occur.
The fan coil unit can be mounted either vertically (up
flow) or horizontally. A stand is required under units that
are installed vertically. This is to ensure enough
clearance for the extemal condensate trap (see section V).
Water supply pumps should not be hard plumbed directly
to the unit with copper pipe; this could transfer vibration
from the water pump, causing a resonating sound. Hard
plumbing could also transfer vibration noise from the unit
through the piping to the living space.
Refer to the Installation and Operating Instructions of the
Hydronic heat pump for examples of plumbing diagrams.
e'Note: Keep all doors and screws installed on unit
while moving unit and installing ductwork. This will help
ensure that the unit stays square, allowing for easier
removal of doors after the ductwork is attached.
VCAUTION - Before driving screws into the cabinet,
check on the inside of the unit to be sure the screw will
not hit electrical or water lines.
III. DUCT SYSTEM/BLOWER
For the duct system, metal ductwork should be used.
Flexible connectors are required for discharge and return
air duct connections on a metal duct system. For
acceptable duct sizes, see Table 1.
If the duct system is installed in an uninsulated space, the
metal ductwork should be insulated on the outside to
prevent heat loss and to absorb noise.
If the unit is connected to existing ductwork, this
ductwork must have the capacity to handle the air volume
supplied by the fan coil. Undersized ductwork will cause
noisy operation and poor operating efficiencies due to
lack of airflow.
The Hydronic Fan Coils come standard with a 230 Volt
three-speed blower. For maximum airflow, the blower
should be on high speed. Moving the wire on the fan
terminal strip changes the fan speed.
An optional variable speed ECM blower is available.
This blower changes speeds depending on what the
thermostat is calling for. If the thermostat is calling for
only the FAN to operate, the blower will put out a low
amount of airflow in cubic feet per minute (CFM). This
low CFM output will gently circulate air throughout the
2
II. I]NIT LOCATION/
MOUNTING
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house, eliminating hot or cold spots, and actually reducing
the need for mechanical heating and cooling at certain
times of the year. The blower can supply this minimal
CFM output with a very 1ow electrical usage.
When the thermostat calls for frst stage heating or
cooling, the fan slowly begins to increase speed. Because
of the slow ramping of the blower speed, full speed on
frst stage may not be achieved until nearly four minutes
have elapsed from the initial call. This enables the blower
to have very quiet starts, and helps minimize cold blasts
of air in the winter. It also provides increased
dehumidification in the suiltmer and warmer, more
comfortable discharge air in the winter. When the
thermostat calls for second stage heating, it will bring the
fan speed up to high speed. The speeds of the ECM
blower are factory programmed, but can be changed +/-
107o using the Adjust tap found in the electrical box.
The ECM blower also provides internal circuitry that will
try to maintain the setpoint CFM when changes occur in
the external static pressure, such as the filter getting dfuty
over time. The motor does this by increasing its torque
output to compensate for external resistance changes.
For blower data and factory settings, see Tables 2 and 3.
eNote: The blower will not operate properly if
ductwork is not attached. The ductwork supplies static
pressure to give the blower motor a load to work against.
Blower motors may overheat if run for an extended period
of time without ductwork attached.
Table 1 - Duct Chart
Tables to water per 100' of duct. At these duct design conditions, along with the pressure drop through the filter,
the total design extemal static pressure is 0.20 inches of water. Normal airflow at 0.20 inches of water should then be used for these calculations.
Table 2 - Fan Performance Data
*Denotes Factory Setting
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4' 4x4
54x5,4x6
64x8,4x6
74x10, 5x8, 6x6
8" 5x10, 6x8, 4x74,7x7
9" 6x10, 8x8,4x16
10" 6x14, 8x10,7x12
10" 6x20. 6x16.9x10
12. 6x18, 10x10,9x12 10" 4x20,7x10,6x12, 8x9
12 6x20,8x14,9x12, 10x11 10" 5x20, 6x16,9x10, 8x12
10' 10x10,6x18, 8x72,7x14
12" 6x20,7x18, 8x16, 10x12
12" 8x1 8, 9x15, 10x14, 12x12
t4" 10x18,12x14,8x24
16" 10x20, 12x18, 14x15
16" 70x25, 12x20, 14xl8, 15xl6
18" 10x30, 15x18, 14x20
20" 10x35, 15x20, 16x19, 12x30, 14x25
20" 10x40, 12x30, 15x25. 18x20
22" 10x45, 15x28, 78x22, 20x2O
Low
Medium*
Hieh
965
1120
1455
960
1090
1385
955
1070
1340
950
1050
1295
935
1020
1245
900
975
1 180
830
900
1085
585
610
760
Low
Medium*
High
1265
1370
1720
1250
1350
1670
1235
13 15
1620
1215
t290
1570
1 185
1255
1520
I 150
1220
1460
1 110
1175
1400
995
1060
1260
Low
Medium
Hig[*
1600
1730
1795
1565
1700
r760
t525
I 665
1725
1485
t620
1680
1435
1570
1630
1385
1515
1570
1330
t455
1505
1210
1310
1360
485 1 100 t2t0
680 1550 1705
790 1800 1920
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Table 3 - Fan Performance Data
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200
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300
350
400
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1600
1800
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IV. CIRCULATING PUMP
Hydronic circulator pumps transfer the energy supplied
by ECONAR's hydronic heat pumps to the fan coil.
When selecting a circulator, be sure to select a quiet
operating pump with the ability to supply the required
flow rate at the systempressure drop. The circulator
supplying the fan coil should be placed in the water
supply line into the unit to provide the best pump
performance.
Small Grundfos pumps (230 VAC) can be used as
circulator pumps. These pumps are impedance protected
and do not require additional fusing if powered directly
from the fan coil, since the fan coil is rated to accept up to
a 1/3 horsepower circulator. ff impedance protected
pumps are not used, inline fiises should be supplied
according to code.
Circulating pumps must be sized to provide the required
water flow to the fan coil at its corresponding pressure
drop. This pressure drop can be calculated from the total
pressure drop through the piping, added to the pressure
drop ofthe fan coil. The pressure drops ofthe fan coil
units are listed in Table 7, located on Page 11. This table
can be used for sizing the circulating pump between the
fan coil and a storage tank. Also, Table 4 shows flow
rates and pressure drops for typical installations, although,
the flow rate can be designed at different rates for
dffierent applications.
Table 4 - Circulator
This table represents the pump sizing required to supply
the fan coil's typical flow rate at the pressure drop ofthe
fan coil and 30 feet of 3/4" type K copper tubing or
combination of elbows and pipe.
A common problem with circulator pumps is trapped air
in the system. This air accumulates in the suction port of
the circulator causing cavitation in the pump, which leads
to premature pump failure and noisy operation. The air
can be eliminated by completely purging the system or by
placing an air separator in the plumbing lines.
The entire system must be purged of air during initial
installation and pressurized to a l0-25 psi static pressure
to avoid air entering the system. This initial static
pressure may fluctuate when going from the heating to
cooling modes but should always remain above zero. If a
leak in the system allows the static pressure to drop, (he
leak must be repaired to assure proper system operation.
Air continually entering the loop can cause corrosion,
bacteria, or pump cavitation.
A. Circulation Fluid
The fluid circulating through the fan coil unit is the
transfer medium for the heating and cooling being
supplied to the conditioned space. Selection ofthis fluid
is very important. Water is the most readily available
fluid but has the drawback of expansion during freezing
which can damage the system. System operation in the
cooling mode provides the opportunity for freezing the
circulating fluid.
Antifreeze must be used whenever the possibility of
freezing exists from the environment or fTom use of the
unit in the cooling mode. A propylene glycol based
artifreeze (readily available through HVAC wholesalers)
and water solution is recommended. Methanol based
antifreeze is not recommended for use on any hydronic
system where heat is being added to the system for
structural heating purposes. Freeze protection for the
hydronic side fluid down to 20"F (20Vo propylene glycol
by volume in water) is recommended for most indoor
applications (see Chart 1).
The water being added to the system should have 100-
PPM grain hardness or less. Ifpoor water conditions
exist on the site, softened water is recommended, or
acceptable water should be brought in. Bacteria or algae
growth in the water is a possibility, especially bacteria or
algae that thrive at the particular temperatures produced in
the heating system. This growth can cause buildup on
heat exchanger surfaces, reducing the efficiency of the
system. Adding a gallon of bleach or boiler system
conditioner can reduce the possibility of growth and clean
up visual flow meters and other components in the
system.
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Chart I -Propylene Glycol/Water Solution Freeze Point
V. CONDENSATE DRAIN
Condensate traps must be installed on every fan coil unit.
Whether the unit is mounted vertically or horizontally, the
unit must be level in order for the condensate to flow to
the drain.
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The condensate line as it leaves the U bend of the
condensate trap must be at least 3" below the base of the
heat pump. This requires the U bend to be 6" below the
unit to give the upward portion of the U bend a 3" lift.
The condensate trap should be vented after the U bend.
The condensate line should be pitched away from the unit
a miaimum of 1/8" per foot. ff the unit produces an odor
in the cooling mode, the condensate trap or line may be
plugged, or the unit may not be leveled properly. Bleach
may be poured down the condensate drain in the fan coil
to kill any bacterial gowth ilr the condensate line.
A stand may be required underneath the fan coil, since
placing the unit directly on the floor would not allow for
the 6" drop of the condensate trap. Vented condensate
traps are necessary to break the negative pressure in the
air chamber and allow the condensate to flow. Construct
condensate ffaps to the following diagram.
Frn Coil bde Air var 3/4" Minimum
dimctu
6" Drop
minimu 3" Ri&
Figure 1- Condensate Drain
VI. ELECTRICAL SERVICE
The main electrical service must be protected by a fuse or
circuit breaker, and be capable ofproviding the amperes
required by the unit at nameplate voltage. All wiring
shall comply with the national electrical code and/or any
local codes that may apply. Access to the line voltage
connection is gained through the knockouts provided on
either side of the fan coil next to the front corner. Route
EMT or flexible conduit with appropriate 3-conductor
wire to the contactor.
&WARNING - The unit must be properlv eroundedlt
VII. 24YOLT CONTROL
CIRCUIT
The wiring diagrams in Figures 2 ard3 shows the low
voltage controls ofthe fan coil. This section will break
down the three basic components of the low voltage
circuit; transformer, thermostat, and internal controls.
A. Transformer
Electrical diagrams are provided in Figures 2 and3 and
on the electrical box cover panel of the Hydronic Fan
Coil. An internal 24-volt,55 VA transformer is provided
to operate all conftol features of the heat pump. Table 5
shows the transformer usage for the fan coils.
If any system's external controls require more than the
VA available for external use from the transformer. a
separate transformer must be used. The fan coil's
Table 5 - Transformer
transformer can generally power simple external control
systems consisting of a few relays or a zone valve
(depending, of course, on the VA draw of the
components). On more complicated control systems the
transformers capacity is used up very quickly.
eNote: For units operating on 208V electrical service,
the transformer must be switched to the correct lead (see
electrical diagram - Figures 2 and 3). Units are factory
shipped with the transformer set for 240V service.
Operating a unit on 208V with the transformer set to
240V will cause the unit to operate with lower than
normal control voltages.
B. Thermostat
A2-heatll-cool thermostat is recommended for proper
operation of the hydronic fan coil. Six-wire thermostat
cable is required for proper operation of the thermostat.
Consult the instructions in the thermostat box for proper
mounting and thermostat operation.
V CAUTION- miswiring of control voltage on system
controls can result in fuse or transformer burnout.
cNote: If a single thermostat controls multiple heat
pumps, the control wiring of the heat pumps must be
isolated from each other. This will prevent the fan coils
from receiving high voltage through the common wiring
if it is turned off at the circuit breaker for service.
Power is supplied to the thermostat by connecting the R
and X (or C) terminals to the fan coil terminal strip. The
blower is controlled through the G terminal and will
operate continuously in the FAN ON position or when the
circulating pump is running in the FAN AUTO position.
The Y terminal energizes the circulating pump to run the
fan coil in heating or cooling.
Ifsecond stage heating (e.g. electronic resistance strip
heat) is used, its control wiring is connected to X and W2
on the fan coil terminal strip. Fan interlock relays are not
required since the thermostat energizes the blower
whenever the second stage is calling. W2 on the terminal
strip is wired directly to second stage heating on the
thermostat. In the event of a fan coil shutdown, switching
the thermostat to emergency heat energizes the E
terminal, which runs the blower and second stage heater
but does not energize the circulating pump. The
thermostat will indicate whenever second stage heating is
energized. These wiring connections are listed in Table 6.
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Table 6 -Connections
Use of a programmable setback thermostat in conjunction
with a fan coil and a second stage backup electric
resistance heater has the potential to cause inefficiency.
The energy savings supplied by night setback could be
less than the energy used by the electric elements if they
operate in the morning to warm the space to the daytime
temperature setting. Second stage usage should be
monitored and setbacks adjusted to maximize energy
savings of the entire system.
eNote: If the thermostat is provided by others and is
equipped with an anticipator, it should be set to its highest
setting to avoid interfering with heat pump operation.
The anticipator has the effect of reducing system capacity
by restricting run time.
C. Internal Controls
The fan coil receives a signal from the thermostat and
initiates the correct sequence ofoperation for the internal
components. The intemal controls performs the following
functions:
1) Blower Operation
2) Circulating Pump Operation
3) Electric Resistance Operation
1. Blower Operation
A signal on the G terminal from the thermostat to the fan
coil will energize the blower. If the fan coil has the
standard 3-speed PSC blower motor, the blower relay will
energize. If the unit has the variable speed ECM blower,
the blower will start on low speed
2. Circulating Pump Operation
A Yl signal from the thermostat will ask the fan coil to
initiate heating or cooling. The circulating pump relay is
then energized in order to start flow of the heated or
chilled water. This circulating pump relay stays on until
the thermostat is satisfied.
3. Electric Resistance Operation
A W2 signal from the thermostat will energize the second
stage electric resistance elements. On units with factory
installed electric resistance, this is 5kW of electric
resistance. This will run in addition to the circulating
pump.
If the thermostat is placed in the Emergency Heat mode, a
call for heating will send the E and W2 signals from the
thermostat, which will energize l0 kW of the factory
installed electric elements. When the unit is in the
Emergency Heat mode, the circulating pump will not
operate.
V[I. STARTUP
Before applying power to the heat pump, check the
following items:
- Water supply plumbing to the fan coil is
completed and operating. Make sure all valves are
open and air has been purged. Never operate the
system without water flow.
- All construction dust has been cleaned up and all
sheet-rocking is completed. Construction dust,
especially sheet-rock dust, can plug the air coil and
block airflow. Make sure the filter is clean before
starting the unit.
- Low voltage wiring of the thermostat and any
additional control wiring is complete. Set thermostat
to the "OFF'position.
- All high voltage wiring is correct including fuses,
breakers, and wire sizes.
You may now apply power to the unit.
- Place the thermostat in the "FAN ON" position. The
blower should start immediately. Check airflow at
the registers to make sure that they are open and that
air is being distributed throughout the house. When
airflow has been checked, move the thermostat to the
"FAN AUTO" position. The blower should stop.
The following steps will assure that your system is
operating properly.
- Turn the thermostat up to its highest temperature
setting. Place the thermostat to the "HEAT" position.
The blower and circulating pump will start
immediately.
- Next, turn the thermostat down to its lowest setting.
Place the thermostat in the "COOL" position. The
blower and circulating pump will start immediately"
- Set the thermostat for normal operation.
- Instruct the owner on correct operation of the
thermostat and fan coil. The unit is now operational,
IX. SERVICE
Regular service to the fan coil unit is very limited. The
biggest factor is changing the air filter. Setting up regular
service checkups with your ECONAR dealer could be
considered.
A. Filter
The fan coil unit is equipped with a disposable air filter.
This filter should normally be replaced once a month
during normal usage. During extreme usage or if system
performance has decreased, the filter should be replaced
more often.
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A dirry filter will reduce the airflow to fhe system. This
decrease in airflow will reduce the efficiency and comfort
level of the system.
If another filter is used in place of the factory specified
filter, it should also be cleaned or replaced in a timely
manner. Be careful in selecting optional filters so that
excessive external resistance to airflow is not induced.
B. Preseason Inspection
Before each season, the air coil, drain pan, and condensate
drain should be inspected and cleaned as follows:
- Turn offcircuit breakers.
- Remove access panels.
- Clean air coil by vacuuming it',^rith a soft-brush
attachment.
- Remove any foreign matter from the drain pan.
- Flush pan and drain tube with clear water.
- Replace access panels and return power to the unit.
X. THERMOSTAT
OPERATION
This section covers basic operation of the standard 2-heat
l-cool thermostat that ECONAR carries. This thermostat
is ECONAR part number 70-2002, Honeywell part
number T85 I I G. If your thermostat is a different style,
please refer to the instructions supplied with that
thermostat-
The settings of the thermostat are controlled with the
"System", "Fan" , "i" , up key, and down key buttons. The
System and Fan buttons are located behind the flip-down
panel.
By pressing the "System" button, you can contol the
mode that the thermostat operates in. The five system
settings are:
L Em. Heat - Controls backup heating. In this mode,
the circulating pump is locked out, and only the
backup heating elements (if installed) operate.
2" Heat - Controls normal heating operation.
3. Off- Both heating and cooling are off.
4. Cool - Controls normal cooling operation.
5. Auto - The thermostat automatically changes
between heating and cooling operation, depending
on the indoor temperature.
Note: When the thermostat is set to Auto, there must be
at least a 2oF difference between the Heating setpoint
temperature and the Cooling setpoint temperature.
The 'Fan" button conffols the operation of the heat
pump's blower" The Fan button has two settings:
1. On - The blower operates continuously.
2. Auto - The blower operates with either a heating or
cooling call.
By pressing the "i", or information, key, you can cycle
through your temperature setpoints. If you wish to
change a temperature setting, press either the up key or
down key when the appropriate mode is displayed. For
example, you wish to change the heating setpoint from
68oF to 70oF. Push the "i" key until the heating setpoint
appears on the LCD display. Then, press the up key until
the desired setpoint is reached. The thermostat will
automatically switch back to the room temperature
display after a few seconds.
Ifyou have additional questions about your thermostat,
please see the installation manual that was sent with the
thermostat.
I
XI. TROUBLESHOOTING GUIDE FOR UNIT OPERATION
Blown Fuse/Tripped
Circuit Breaker Replace fuse or reset circuit breaker. (Check for correct size fuse and
circuit breaker.)
Broken or Loose Wires Replace or tighten the wires
Voltage Supply Low If voltage is below minimum voltage on data plate, contact local power
company.
Low Voltage Circuit Check24 volt transformer for burnout or voltase less than 18 volts.
Thermostat Set thermostat on "Cool" and lowest temperature setting, unit should run.
Set thermostat on "Heat" and highest temperature setting, unit should run.
If unit does not run in both cases, the thermostat could be wired
incorrectly or be faulty. To prove faulty or miswired thermostat,
disconnect thermostat wires at the unit and jumper between "R", "Y",
and "G" terminals and unit should run. Replace thermostat with correct
thermostat only.
Entire unit does
not run
Interruptible Power Check incoming supply voltage.
7

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Thermostat Check setting, calibration, and wiring. ff thermostat has an anticipator,
set it at 1.0 or I .2.
Wiring Check for loose or broken wires
Blown Fuse Replace fuse or reset circuit breaker. (Check for correct size fuse or
circuit breaker.)
Voltage Supply Low If voltage is below minimum voltage specified on the data plate, contact
local power company.
Low Voltage Circuit Check24 volt transformer for burnout or voltage less than l8 volts.
With a voltmeter, check signal from thermostat at Y to X
Blower motor
runs but
circulating pump
does not
Pump Relay Faulty Circulating Pump Relay
Thermostat The differential is set too close to the thermostat. Readjust heat anticipator
to 1.0 or 1.2.
Thermostat Improperly located thermostat (e.g. near kirchen), inaccurately sensing the
comfort level in the living area.
Unit Short
Cycles
Wiring and Conrols Loose wiring connections, or control contactor defective.
Water Lack of sufficient pressure, temperature, and/or quantity of water,
Unit Undersized Recalculate heat gains or losses for space to be conditioned. Ifexcessive,
rectify by adding insulation, shading, etc.
Loss of Conditioned Air
by Leaks Check for leaks in ductwork or introduction of ambient air through doors
and windows.
Thermostat Improperly located thermostat (e.g. near kitchen), inaccurately sensing the
comfort level in the living area. Check anticipator setting.
Insufficient
cooling or
heating.
Airflow Lack of adequate airflow or improper distribution of air. Check the motor
speed or duct sizing. Check the filter, it should be inspected every month
and changed if dirty. Remove or add resistance accordingly.
Thermostat Improperly Set Check if thermostat is set at correct temperature.
Defective Thermostat Check thermostat operation. Replace if found defective.
Incorrect Wiring Check for broken, loose, or incorrect wires.
unit will nor
operate on
"heating" Blower Motor Defective Check blower motor in one of the other switch positions. If it does not
operate, check for open overload. If overload is open and motor is not
overheated, replace it.
Blower and Blower Motor Blower wheel hitting the casing. Adjust for clearance and alignment.
Bent blower, check and replace if damaged. Loose blower wheel on
shaft, check and tighten. Defective bearings, check and replace.
Rattles and Vibrations Check for loose screws, panels, or internal components. Tighten and
secure. Copper piping could be hitting the metal surfaces. Carefully
readjust by bending slightly.
Noisy
Operation Water and Airborne Noises Undersized ductwork will cause high airflow velocities and noisy
operation. Excessive water through the fan coil heat exchanger will cause
a squealing sound. Check the water flow to ensure adequate flow for
good operation, while eliminating the noise.
Unit Not Lrvel Level unitWater drips
from unit Condensate Drain Line
Kinked or Plugged Clean condensate drain.
8
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XII. ADDITIONAL FIGURES AND TABLES
FCx.1.s0
EcoMl Hydrcntc Fin Coll
Eltrtrtcrl Dtogril
t* A 9.01 80.0042
-
Facttry girlng
- - Field llrlnr
-
tllgh yo'ltal. z{lvlc
-
Lry voltrgE 2lvrt
Instrll Juplr
f.6 Yl to II P8
ltEmstat
EC0tiuR Pirt
Urt r 70-200, r-1 Fil
I'btor -'l
I
I
trfi}IO
18 Blmr Relay
M Pra n l.y
8F Fil BlD.k
BP Pw tlocl
PB tlwr P'lug
lI tlldr 11tr'it
E1.2 EIEtdc Elmms
rtltltt Pg
ttrl tllt BF
EIE Elmr
Caprctt6
2tBtz40 tx
zaY 'Irmr
ilt
ltydrmlc P|ID
lNHPru
230 Uolts
RP
llt I
9EC0MR Elstric.l Bq
8lE
Iu] Thlte
BIE HF xLl
209.40
Yrt
Si ngle
Phu.
E2 ' t.8 [12
{+150/200
crilnd
(.
9
Figure 2 - Wiring Diagram, Fan Coil Unit (FCx-1-xx0)
ECoMR Slld€.In [eats
optlff.l (FCx.x.IEr)

L
L
L
I
2
DC
BLOiES
TfIUR
5
Install Jm
fH Yl to ln
--1
Thetmtat
tdltt l P.rt
lrbcr 70.2002
FCx.I.uv
tc()lqn Hrdfontc Fan CotI
E'l*trlcal fiagu
R* A 9.04 m'00,13
-
Ftatofy It.tE
- - Fi.ld Ylrl,ig
-
High lblt.Oi 2tlovlc
-
til yotrogc Z4UE
1
R
ilt 8C BC +
toi
A8C Rld
B'a
RP
--ut
8tfiEi DTOB COilTROL I{IRES
1 . B'lue
? . Ihlre
3-Blre
4 ' Grafined
5 ' Xh'it€/R.d
7 . oranse
U " tlhltr,rSlE
l3 . Block
14 . Brun/BIE
15 . Srcn
2m't210 VX,
2+1 Tran3
LEEIIO
RP Prp klay
tP PE Slocf
HL Hlci l-idr
E1.2 Electrtc Etffits
BlfrEfi SPEO sETTlt{iS
A - Futuru Ue
E-Fcs
c.FCA
D-FT3
+ - Increr* CFl| Dy 10,
. - occrce CFx by 101
EC(IIAX ElEtrrc.l Eox
Hydrcnic PUD
lll Ip H
230 Yolts
EIc
Hhl tE
qF
150/200
EA
El . 4.8 kI El ue
Blrct fl11
2W.AO
vrc
Slnel e
Phase
Gmund {rF
LFigure 3 - Wiring Diagram, Fan Coil Unit (FCx-l-xxV)
10
I
R

t.3
2.2 1.2
J.J 2.0 1.6
4.6 2.9 2.0
6.3 4.O 2.6
8.4 5.2 J.J
10.9 6.7 4.3
t3.9 8.4 5.4
17.6 t0.4 6.7
2r.8 12.7 8.1
26.8 15.5 9.8
Table 7 -Water Side Pressure Drop
t0.3" t2
T
HEnteliry \Yater (3/4' FPT)
If,aving 'lvater (3/4' FPT).
Conderoale Drain (3/4" MPI)
Filter (l5"x25"x1")
H = 47.5" for FC3 and FC4
H = 54.5" for FC5
21.U'
t2.6"
26.1"
17.5" 2.1"
4.r'
Figure 4 -Dimensions
I
11
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6
7
8
10
11
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X[I. PERFORMANCE DATA
LFC3 Heating Data
70oF Entering Air Temperature
95 15,900 17,800 20,500 18,800 21,100 22,r00
100 18,200 21,000 23,700 2r,700 25.000 26,700
105 20,500 24.300 27,000 24,600 29,000 31,300
110 22.900 27,500 30,200 27,600 33.000 35,900
115 25,2N 30,800 33,s00 30,500 37,ON 40,600
120 27,500 34,000 36,700 33,400 41,000 45,200
130 32,200 40,500 43,300 39,300 49,000 54,400
140 36,800 47,000 49,900 45,100 57,000 63,700
41,500 53,500 56,300 51,000 64,940 72,900
r,60 46,100 60,000 63,800 56,900 72,919 82,200
L
9.7 6.6 5.5 tt.4 7.8 5.8
tr.2 7.9 6.4 t3.4 9.3 7.2
12.8 9.2 7.3 1s"3 10.9 8.5
110 14.4 10.5 8.2 17.3 72.5 9.8
115 15.9 11.8 9.2 19.2 14.1 1 l.l
r20 17.4 13. I10.1 21.2 t5.7 12.4
130 20.6 15.7 12.0 25.1 18.9 15. I
140 23.6 18.3 13.8 29.0 22.1 tt.7
1.s0 26.8 20.9 15.7 32.9 25.3 20.4
160 29.8 23.5 17.8 36.8 28.5 23.0
95 15.1 16.9 19.5 t2.8 t4.3 15.0
100 17.3 20.0 22.6 t4.7 t7.0 18.1
105 19.5 23.1 25.7 16.7 19.7 2t.2
110 21.8 26.2 28.7 18.7 22.4 24.4
11"5 24.0 29.3 31.9 20.7 25.1 27.5
120 26.2 32.4 34.9 22.7 27.8 30.7
130 30.7 38.6 4t.2 26.7 33.2 36.9
140 3s.0 44.7 47.4 30.6 38.7 43.2
150 39.5 50.9 53.6 34.6 44.1 49.5
160 43.9 57.1 60.7 38.6 49.5 55.8
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105
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FC3 Cooling Data
80"F WB/67'F DB Entering Air Temperature
15,300 17,100 18,900 t7,600 20,100 23,500
18,400 20,100 22.400 21,400 23,900 27,700
21.400 23,000 26,000 25,100 27,700 31,900
24,500 26,000 295N 28,800 31,500 36,r00
27,600 29,000 33,000 32,500 35,300 40,400
10,700 12,3ffi 13,600 t2,700 t4,600 t7,200
12,800 t4,zffi 15,900 15,100 17,100 20,000
22,900
14,900 t6,2N 18,100 17,600 19,700
16,900 18,100 20,400 20,100 22,200 25,700
28,500
19,000 20,100 22,700 22,600 24,800
8.7 7.2
11.1 7.4 5.8 t2.8
13.1 8.6 6.8 15.3 10.2 8.4
9.7 7.8 17.8 1r.7 9.6 15.1 10.8
7',t.2 10.9 8.8 20.3 13.2
19.3 t2.l 9.8 22.7 14.8 t2.0
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70.2 tt.7 12.9 8.6 9.9 tt.7
15.1 t0.2 11.6 \3.6
12.2 13.5 15.5
t4.2 15.4 t7.2 11.9 13.4
r7.2 t9.4 t3.6 15.1 17.4 16.1 79.3
18.1 L9.t 21.6 15.3 16.8
73.2
69.9 7t.9 72.0 72.2 72.6
69.6 70.6 7t.0 70.6 7t.5 72.2
69.6 70.4 69.6 70.1 7t.t 77.8
69.0 69.6 69.2 69.8 70.5 71.2
68.8 69.5 70.3 70.5 68.8 69.3
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LFC4 Heating Data
70oF Entering Air Temperature
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19,600 22,500 24,300 22,500 ?4,000 28,200
23,600 26,6W 28,800 27,200 28,800 33,200
27,500 30,800 33,4N 31,800 33,600 38,100
31,500 35,000 37,900 36,400 38,300 43,100
35,500 39,100 42,500 41,100 43,100 48,100
39,400 43,300 47,000 45,700 47,900 53,100
47,300 51,600 56,100 54,900 57,400 63,100
55,200 59,900 65,200 64,200 67.000 73,100
63,100 68,200 74,300 73,500 76,600 83,000
71,100 76,5ffi 83,400 82,700 86,100 93,000
7.1 5.9 5.0 8.0 6.1 5.7
8.1 7.O 6.0 9.9 7.5 6.8
10.2 8.2 7.0 tr.7 8.9 7.9
11.8 9.4 8.0 t3.6 10.2 9.0
t3.4 10.6 9.0 15.4 lt.6 10.1
15.0 1 1.8 10.0 17.3 13.0 tt.2
18.1 14.2 t2.0 21.0 75.7 13.5
2t.3 16.6 74.1 24.7 18.4 t5.7
24.5 18.9 16.1 28.4 21.2 r7.9
27.7 2t.3 18.1 32.1 23.9 20.1
'es :l A.q 16.6 17.9 12.6 13.5 15.8
1oo | fi.+ 19.6 2r.2 15.3 16.2 18.6
105 :l zo.z 22.7 24.6 17.8 18.9 21.4
110 | ZZ.z 25.8 2',l.9 20.4 21.5 24.2
115 | ZA.r 28.8 31.3 23.7 a/1 a 27.0
r2o I zs.o 31.9 34.6 25.6 26.9 29.8
130 I :+.S 38.0 41.3 30.8 32.2 35.4
| +o.o 44.1 48.0 36.0 37.6 4t.0
1s0 | +e .+ 50.2 54.7 41.2 43.0 46.6
160 I Sz.Z 56.3 61.4 46.4 48.3 52.2
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110
115
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130
140
150
160
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105
110
115
:120
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140
150
160
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FC4 Cooling Data
80oF WB/67.F DB Entering Air Temperature
18,800 23,400 23.70027,800 26,500 30,800
23,200 27,600 31,700 28,300 30,800 35,300
27,600 31,800 35,600 33,000 35,000 39,800
40 32,000 36,100 39,400 37,600 39,300 44,300
36,400 40,300 43,300 42,200 43,600 48,800
13,200 16,300 19.500 16,900 18,900 21,900
50 16,200 19,200 22,000 20,200 21.800 25,000
45 19,300 22,000 24,600 23,400 24,800 28,100
40 22,400 24,900 27,t00 26,600 27,700 3t,200
27,800 29,700 29,900 30,700 34,300
35 25,400
i
55 7.2 6.6 10.5 8.3 7.4 8.2
50 10.0 8.4 7.4 12.3 9.5 8.4
45 Lt.7 9.6 8.3 14.2 10.7 9.4
9.1 16.0 tt.9 10.413.5 10.8
35 15.3 12.0 10.0 t7.9 t3.2 tl.4
9.7 12.0 14.4 9.5 10.6 t2.3
50 11.9 t4.t 16.2 1 1.3 t2.2 14.0
13.1 t3.9 15.8
45 t4.2 t6.2 18.1
40 16.5 18.3 19.9 14.9 15.5 17.5
21.9 16.8 17.2 19.2
35 r 8.7 20.5
7 t.3 7t.t
55 70.2 69.7 70.1 71.3
69.8 69.6 69.4 7t.4 70.8 70.8
45 69.9 69.2 69.t 70.9 70.9 70.6
40 70.0 69.0 68.8 70.7 70.5 70.4
69.8 69.0 68.6 70.9 70.4 70.3
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tFC5 Heating Data
70oF Entering Air Ternperature
'95 31,300 33,100 34,900 31,700 33.300 35.200
,100 36,600 39,000 41,400 37,300 39,500 41,900
105 41,800 44,800 47,800 42,800 45,600 48,704
110 47,t00 50,700 54,300 48,400 51,800 55,400
115 52,400 56.s00 60,700 54,000 57,900 62,r00
u0 57,600 62,400 67,100 59,500 64,000 68,900
130 68,100 74,t00 80,000 70,600 76,300 82,400
140 78,700 85,800 92,900 81,700 88,600 95,900
150 99,200 97,500 105,800 92,900 100,900 109,300
1.60 99,700 109,200 118,700 104,000 1r3,200 t22,800
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95 1) 6.2 5.4 7.3 6.1 5.4
8.6 7.3 6.5 8.7 7.4 6.6
9.9 8.5 7.77.6 10.1 8.6
tt.2 9.7 8.7 11.5 9.8 8.8
t2.5 10.8 9.99.7 12.9 I l.l
120 13.8 t2.0 10.8 t4.2 t2.3 11.1
1.30 r6.4 14.4 12.9 17.0 14.7 13.3
15.6
140 19.1 t6.7 15.1 19.8 17.2
150 21.',] 19.0 t7.2 22.6 19.7 17.8
160 24.3 2t.4 t9.4 25.4 22.1 20.0
95 18.2 t9.2 20.3 16.6 t7.4 18.4
22.0
100 21.3 'r1 -t 24.0 19.5 20.7 25.5
105 24.3 26.O 27.8 22.4 23.9
110 27.4 29.5 3 1.5 25.4 27.1 29.0
l.t 5 30.4 32.8 35.3 28.3 30.3 32.5
120 33.5 36.2 39.0 31.2 33.5 36.1
43.2
130 39.6 43.0 46.s 37.0 40.0
140 45.7 49,8 54.0 42.8 46.4 50.2
1.50 51.8 s6.6 61.5 48.7 52.9 57.3
L60 57.9 63.4 69.0 54.5 59.3 64.3
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FC5 Cooling Data
80'F WB/67"F DB Entering Air Temperature
28,100 31,100 33,100 29,700 32,t00 34.100
34,300 37,500 39,700 36,000 38.600 40,900
40,400 43.900 46,300 42.400 45,200 47,700
46,500 50,200 52,900 48,700 51,800 54,500
52,700 56.600 59,400 55,000 58,400 61,300
22,700 21,300 22,700 24,tW19,600 21,300 28.70023,700 25,600 27,200 25,500 27,100
27,800 29,900 31,700 29,700 31,600 33,400
31,900 34.200 36,200 33,900 36,000 38,100
42,700
36,000 38,500 40,700 38,200 40,500
7.6 6.6 5.9 8.1 6.9 6.1
9.1 7.9 7.0 9.6 8.2 7.2
10.6 9.2 8.1 tr.2 9.6 8.4
t2.2 10.5 9.2 12.8 10.9 9.5
t3.7 lt.7 10.3 t4.4 t2.2 10.6
I_-:...
11.0 1 1.8 12.5 tt.4 t2.4 t3.2
13.8 t4.9 15.8 t3.2 14.0 74.9
16.1 t7.4 18.4 15.4 16.4 t7.3
18.5 t9.9 27.0 t7.6 18.6 t9.7
20.9 22.4 23.6 19.8 2t.0 22.t
69.8 68.5 68.6 71.7 70.7 70.7
69.t 68.3 68.5 70.8 70.2 70.2
70.0 69.9 70.0 68.8 68.1 68.5
68.6 68.1 68.4 69.6 69.5 69.9
69.5 69.3 69.768.3 68.0 68.5
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GeoSourcet 2000, DualTEK, Vara,
Vara 2 Plusr*,Invisions, and Ultra Heat Pumps
USA and Canada
Re sidential and Limite d Commercial Warranty * *
Residential Applications Onlyz AII Parts - 2 Years
Years I through 2, ECONAR Energy Systems Corp. will provide a free replacement part upon prepaid return of all defective parts, F.O.B.
Appleton, MN for any part which fails to function properly due to defective material, or workmanship. * During this period, ECONAR will
cover cost of labor for the replacement parts found to be defective; not to exceed ECONAR's published Labor Rate Schedule.
. Refrigeration Components - 5 Years
Yean 3 through 5, ECONAR will provide a free relacement part F"O.B. upon prepaid return of defective parts, F.O.B. Appleton, MN for
any compressor, or refrigeration components (parts only***) which fails to function properly due to defective material or workmanship.
Heat Exchangers - Lifetime
ECONAR will provide a free replacement internal heat exchanger (i.e. water to refrigerant, refrigerant to air) upon prepaid retum of
defective part F.O.B. Appleton, MN (parts only) for the lifetime of the heat pump.
Commercial Applications Onlyz AII Parts - L Year
**First year, ECONAR will provide a ftee replacement upon prepaid retum of all defective parts, F.O.B. Appleton, MN for any part which
fails to function properly due to defective material or workmanship. During this period, ECONAR will cover the cost of labor for the
replacement of parts found to be defective; not to exceed ECONAR's published Labor Schedule.
Refrigeration Components - 5 Years
Years 2 through 5, ECONAR will provide a free replacement part upon prepaid return F.O.B. Appleton, MN for any compressor, or
refrigerant component (parts only) which fails to function properly due to defective material, or workmanship.
AII Applications:
Limitations:
e Begins the date of original purchase as recorded by ECONAR with the retum of the warranty registration card. (If warranty card is not
submitted, warranty begins the date of original manufacture based on serial number).
r Applies to original installation and normal use ofthe heat pump only and does not include any other component ofa system as a whole.
o Al1 ECONAR labeled and manufactured accessories carry a2 year part warranty for residential duty and 1 year for commerical duty. All
other accessories carry the manufacturers warranty only. Labor is excluded on all accessories.
o Service must be performed by an ECONAR authorized service person.
. Replacement parts shall be warranted for 90 days. After the 90 days, the parts will be covered by the remaining wiuranty of the unit.
r Under no circumstances will ECONAR be liable for incidental, or consequential expenses, losses or damages.
Owners Responsibilites:
o Return warranty card to activate warranty coverage. See form#90-0147
r Provide normal care and Maintenance.
o Make products accessible for service.
Warranty is Void if:
r Data label is defaced, or removed.
r Product has defect, or damage due to product alterations, connection to an improper electric supply, shipping and handling, accident, fire,
flood, lightning, act of God, or other conditions beyond the control of ECONAR.
. Products are not installed in accordance with ECONAR instructions and specifications.
. Products which have defects, or insufficient performance as a result ofinsufficient or incorrect installations, poor water supply, design, or
the improper application of products. (This would include a freeze rupture)
o Products are installed, or operate in a corrosive environment causing deterioration ofmetal parts.
Warranty Performance:
o The installing contractor will provide the warranty service for the owner. Ifthe installing contractoris not available, contact:
ECONAR Energy Systems, Corp., Customer Support, at 33 West Veunr, Appleton, MN 56208 or call toll free 1-800-4-ECONAR.
*Determination of the defect is the sole discretion of ECONAR Energy Systems, Corp.
* *Limited Commercial Warranty covers all non-residential applications.
***Energy Star rated products include parts and labor
This warranty supersedes any and all previously written or implied waranty documentation. @ECONAR Energy Systems Corporation 12103
L

\_:
L
ColdClimate ru Geothermal Heat Pump s
19230 Evans Street (Hwy 169)
Elk River, MN 55330
USA
1-800-4-ECONAR
www.econar.com
\_
90-1052 Rev.5-05 O ECONAR Energy Systems Corp.