1 – CCM
2 – Versatec Microprocessor
4 – FX10 Std. w/o Communication
5 – FX10 w/Open N2 Com Card
6 – FX10 w/Lonworks Com Card
7 – FX10 w/BacNet Com Card
C – Copper
N - CuproNickel
1 – Unit Mounted T-Stat
2 – Remote Wall-Mounted T-Stat
02 March 2014D
NOTES: Chassis only available with left piping option.
FX10 option is only available with remote wall-mounted thermostat control.
09-12 only available with PSC blower.
15-18 only available with 3-Speed ECM blower.
4
Page 5
General Installation Information
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Safety Considerations
WARNING: Before performing service or
maintenance operations on a system, turn off main
power switches to the indoor unit. If applicable,
turn off the accessory heater power switch.
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 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.
Follow all safety codes. Wear safety glasses and work
gloves. Use a quenching cloth for brazing operations and
have a fire extinguisher available.
Moving and Storage
Move units in the normal “up” orientation. Do not stack
units. 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.
Water Piping
The proper water flow must be provided to each unit
whenever the unit operates. To assure proper flow, use
pressure/temperature ports to determine the flow rate.
These ports should be located at the supply and return
water connections on the unit. The proper flow rate cannot
be accurately set without measuring the water pressure
drop through the refrigerant-to-water heat exchanger.
All source water connections on commercial units are
fittings that accept a male pipe thread (MPT). Insert the
connectors by hand, then tighten the fitting with a wrench
to provide a leakproof joint. When connecting to an open
loop (groundwater) system, thread any copper MPT fitting
into the connector and tighten in the same manner as
described above.
Refrigerant Systems
To maintain sealed circuit integrity, do not install service
gauges unless unit operation appears abnormal. Compare
the change in temperature on the air side as well as the
water side to the Unit Operating Parameters tables. If the
unit’s performance is not within the ranges listed, and the
airflow and water flow are known to be correct, gauges
should then be installed and superheat and subcooling
numbers calculated. If superheat and subcooling are outside
recommended ranges, an adjustment to the refrigerant
charge may be necessary.
5
Page 6
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Dimensional Data - Flat Top Cabinet
LCW09-18
Right Hand Cabinet
TOP
DE
Left Hand Cabinet
F
Flat Top
Configuration
09-12
15-18
A
FRONT
Right return cabinet shown in dimensional views
Overall Cabinet
ABCDE FG
WidthDepthHeight
in.45.110.822.59.235.06.12.3
cm.114.627.457.223.488.915.65.8
in.50.012.822.59.235.06.13.3
cm.127.032.457.223.488.915.68.3
Grille
Lid
Grille
Length
Grille
Grille
Width
B
G
C
SIDE
6
Page 7
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Dimensional Data - Slope Top Cabinet
LCS09-18
TOP
Left Hand CabinetRight Hand Cabinet
F
Slope Top
Configuration
09-12
15-18
DE
A
C
H
FRONT
Right return cabinet shown in dimensional views
Overall Cabinet
ABCDEFGH
WidthDepthHeight
in.45.110.824.09.235.06.12.022.4
cm.114.627.461.023.488.915.65.156.9
in.50.012.824.09.235.06.12.022.5
cm.127.032.461.023.488.915.65.157.2
Grille
Lid
Grille
Length
Grille
Grille
Width
80°
B
G
SIDE
7
Page 8
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Dimensional Data - Chassis
LCC09-12
WATER OUT
1/2 in. FPT
WATER IN
1/2 in. FPT
LCC15-18
21.7
17.6
9.5
10.2
2.1
0.8
2.1
8.6
CONDENSATE
DRAIN CONNECTION
2.1
1.5
2.1
25.4 AIR FLOW
26.3
BLOWER ACCESS PANELCOMPRESSOR
38.4
12.0
ACCESS PANEL
21.7
17.6
9.6
1.0
12.1
2.10
WATER OUT
1/2 in. FPT
WATER IN
1/2 in. FPT
2.1
8.6
33.1 AIR FLOW
42.7
33.69.1
1.5
1.5
8
Page 9
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Dimensional Data - Controls Detail: Flat Top Chassis
Left ReturnRight Return
Wall Mount For Chassis
w/Flat T op Cabinets
Blower Option Switch
Control Panel
(Remove For Access
To Control Box)
Control Panel (Remove For
Access To Control Box)
Blower Option Switch
Handy Box
Optional
Fused/
Non-fused
Disconnect
Optional
Ball Valves
Optional
Hose Kits
Air Filter
Air Filter
Dimensional Data - Controls Detail: Flat Top Chassis
Wall Mount For Chassis
w/Flat T op Cabinets
Handy Box
Optional
Fused/
Non-fused
Disconnect
Optional
Ball Valves
Optional
Hose Kits
Optional
Fused/
Non-fused
Disconnect
Optional
Hose Kits
Wall Mount
Attached to Unit
Optional
Ball Valves
Control Panel (Remove For
Access To Control Box)
Air Filter
Handy Box
Blower Option Switch
(On Side Panel)
Blower Option Switch
(On Side Panel)
Control Panel (Remove For
Access To Control Box)
Air Filter
Handy Box
Optional
Ball Valves
Wall Mount
Attached to Unit
Optional
Hose Kits
Optional
Fused/
Non-fused
Disconnect
9
Page 10
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Physical Data
8 x 22
23 x 9.6
Console
[203 x 762]
[813 x 244]
6.0 x 6.5
[152 x 165]
8 x 30
32 x 9.6
6.0 x 6.5
[152 x 165]
N/A
8 x 30
[203 x 762]
32 x 9.6
[813 x 244]
12/13/13
Model
Compressor (1 each)Rotary
Factory Charge R-410A, oz [kg] 27 [0.77]27 [0.77]36 [1.02]34 [1.0]
Blower Motor & Blower
Blower Motor Type/Speeds
Blower Motor - hp [W]
Blower Wheel Size (Dia x W), in. [mm]
Blower Motor Type/SpeedsPSC 2 SpeedsN/A
Blower Motor - hp [W]PSC1/16 [44.7]1/16 [44.7]N/A
Blower Wheel Size (Dia x W), in. [mm] PSC
Coax and Water Piping
Water Connection Size - FPT - in [mm]1/2 [12.7]1/2 [12.7]1/2 [12.7]1/2 [12.7]
Coax & Piping Water Volume - gal [l]0.15 [0.6]0.18 [0.7]0.15 [0.6]0.18 [0.7]
Air Coil
Air Coil Dimensions (H x W), in. [mm]
2
Air Coil Total Face Area, ft
Air Coil Tube Size, in [mm]3/8 [9.5]3/8 [9.5]3/8 [9.5]3/8 [9.5]
• Choose level flooring surface (Correctable with shims. Do not pitch towards drain.)
• Location of wall support and fasteners required to secure chassis backplate.
• Easy access for both installation and service.
• Consider availability and ease of wiring, water piping and condensate drain.
• No obstructions to block airflow in front of the unit.
Step 3: Mark Unit Position
• Ensure that floor is level. If shims are required, make sure that the entire compressor compartment area is uniformly
shimmed and that the backplate mounting height is increased by the thickness of the shims used.
• Position backplate in desired equipment location. To further reduce the operating sound level of the unit, 1/8-inch thick
rubber matting may be placed under the chassis to eliminate vibration on hard flooring surfaces. (Make sure back plate
is level).
• Mark and cut floor or wall penetrations for electrical wiring, water and condensate piping.
Optional Electrical Disconnect
• Mark and cut wall penetrations for field fabricated outside air duct sleeve.
• Align mounting holes with backplate and attach with screws supplied.
Figure 1
Fused Electrical
Disconnect (Optional)
Wall Penetration
for Water Connection
Floor Penetration for
Water Connection
Wall Mount for Chassis
w/Flat Top Cabinets
19.0
Centered
w/ Cabinet
Water Out
P/T Plugs (Optional)
Water In
Ball Valves
(Optional)
Optional Hoses
Condensate
Drain Location
Low Sill
Chassis
Low Sill Flat
Top Cabinet
11
Page 12
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Installation Steps cont.
Step 4: Provide Water and Condensate Drain Connections
• A two-pipe reverse return piping configuration is recommended as it equalizes the piping circuit lengths and delivers
even water flow to each unit. A direct return piping configuration may be used, but it may be difficult to achieve and
maintain proper water flow to the units.
• An air vent must be installed in the water distribution system.
• The supply and return water piping should be run through the wall or floor penetration and terminate with a ball valve.
The piping material used must comply with all local codes.
• Refer to: System Cleaning and Flushing procedures.
Pipe Locations
Figure 2
Console Cabinet
Console Chassis
Water Connections
Fused Electrical
Disconnect (Optional
Wall Mounted)
24V Accessory
Target Area for
Wall Penetration
5 in. x 8 in. Area Approx.
1/2 in. from Edge of
Chassis 3 in. from Floor
Cabinet Extends
to this Point
5 in. x 8 in. Area Approx.
1/2 in. from Edge of
Chassis 1 in. from Front
Edge of Cabinet
Electrical
Junction
Box
Condensate
Drain
Location
Target Area
for Floor
Penetration
12
Page 13
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Installation Steps cont.
Step 5: Provide Line Voltage Wiring
• Check unit data plate located on control side of chassis for ampacity and fuse size.
• Remove electrical knockouts from chassis backplate.
• Run line voltage wiring through knockout and secure wiring to backplate or disconnect.
Step 6: Chassis Installation
• Level and secure backplate to wall.
• Position the chassis against back plate. Drive (2) screws through holes in lip of backplate into top flange of chassis.
Step 7: Final Electrical Connection
• Install flexible electrical conduit between the backplate or electrical disconnect and the unit mounted junction box.
• Make final wiring connections in disconnect and junction box, taking care to replace all covers when done. Wiring must
conform to NEC and/or all local codes. Refer to Electrical Data.
NOTE: It is necessary to make final wiring connections prior to securing unit chassis to back plate on right-hand piping
models with electrical disconnect.
Step 8: Final Water Connection
• For ease of installation and sound attenuation, high pressure (recommended) flexible hoses with a swivel fitting should
be provided. Apply Teflon® tape or sealant compound to threaded hose fittings.
• Combination shut-off/balancing valves should be installed on both the supply and return water lines of the unit.
• Flow control valves should be installed on the water discharge line.
• It is recommended that P/T ports be installed on the supply and return water lines.
Step 9: Set Unit Controls
• Locate the “continuous fan/cycle fan” switch within the electrical compartment of the chassis and set to desired position.
(Remote wall thermostat units do not use this optional switch.)
• Optional Control SettingsRemote Thermostat - Run low voltage wiring from unit to the desired thermostat location.
Mount and wire thermostat according to manufacturer’s recommendations.
Step 10: Secure the Cabinet Cover
• Position and lower cabinet over unit chassis. Apply pressure to the front of the cabinet to ensure that the back lip of the
cabinet hooks over the tabs provided on the backplate.
• Secure cabinet to chassis with mounting screws provided.
Step 11: Perform Final Unit Check
• Measure the pressure drop across the water coil and monitor water or air temperatures in both heating and cooling
modes. The measured values should fall within the acceptable ranges shown in the Startup Performance table.
13
Page 14
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Installation Steps cont.
Field Converting Console
Chassis is normally configured with controls on right end and piping on left end (see Figure 3 top view). In this position
panel number 1 would be positioned against wall or back plate. Unit may also be turned 180° against wall or back plate. In
this position controls will be on left end and piping on right end panel number 2 would be positioned against wall or back
plate. Chassis must be enclosed with an approved cabinet enclosure.
1. Remove 4 screws from front kick panel on cabinet.
2. Remove cabinet from chassis by lifting and sliding
cabinet straight up.
3. Remove grille assembly from cabinet by removing 4
screws from brackets located on the bottom of the grille
and door assemblies.
4. Replace grille/door assemblies into cabinet
repositioning pieces 1, 2, and 3 into the locations directly
opposite the original positions. Secure by replacing
mounting brackets. (Note: Be sure that louvers on the
grille assembly are facing the proper direction when
replacing the grille section.)
5. Replace grille/frame assembly into cabinet, and secure
by replacing mounting brackets.
6. Replace cabinet by sliding it down over the top of the
chassis.
7. Remove tab on leg that extends into return air opening.
When the grille side of the cabinet is flat against chassis
there will be 4 holes that line up in the leg section. Only
use 1 hole for alignment for opposite side of grille. (Note:
The tab can be removed by twisting back and forth until
it breaks off.)
8. Remove plastic strip from tab and replace on rough
edge that the tab was removed from.
9. Replace screws in font kick panel to secure cabinet to
chassis.
10. Mount filter bracket in designated opening area. (Note:
The filter bracket will only fit in one direction if cabinet
is installed properly.)
6
7
2
3
1
4
5
2
3
6
7
5
5
4
LEFT RETURN
5
1
RIGHT RETURN
14
Page 15
System Cleaning and Flushing
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Cleaning and Flushing
Prior to start up of any heat pump, the water circulating system must
be cleaned and flushed of all dirt and debris.
If the system is equipped with water shutoff valves, the supply and
return runouts must be connected together at each unit location (This
will prevent the introduction of dirt into the unit, see Figure 7). The
system should be filled at the water make-up connection with all air
vents open. After filling, vents should be closed.
The contractor should start the main circulator with the pressure
reducing valve makeup open. Vents should be checked in sequence
to bleed off any trapped air and to verify circulation through all
components of the system.
As water circulates through the system, the contractor should check
and repair any leaks found in the piping system. Drain(s) at the
lowest point(s) in the system should be opened for initial flush and blowdown, making sure water fill valves are set at the
same rate. Check the pressure gauge at the pump suction and manually adjust the make-up water valve to hold the same
positive pressure both before and after opening the drain valves. Flushing should continue for at least two hours, or longer
if required, until drain water is clean and clear.
The supplemental heater and/or circulator pump, if used, should be shut off. All drains and vents should be opened to
completely drain the system. Short-circuited supply and return runouts should now be connected to the unit supply and
return connections.
Figure 7: Flushing with Water
Shutoff Valve Equipped Systems
Return Runout
Supply Runout
Mains
Rubber Hose
Runouts Initially
Connected Together
Refill the system with clean water. Test the system water for acidity and treat as required to leave the water slightly alkaline
(pH 7.5 to 8.5). The specified percentage of antifreeze may also be added at this time. Use commercial grade antifreeze
designed for HVAC systems only. Environol™ brand antifreeze is recommended..
Once the system has been filled with clean water and antifreeze (if used), precautions should be taken to protect the
system from dirty water conditions. Dirty water will result in system-wide degradation of performance, and solids may clog
valves, strainers, flow regulators, etc. Additionally, the heat exchanger may become clogged which reduces compressor
service life and can cause premature unit failure.
In boiler/tower application, set the loop control panel set points to desired temperatures. Supply power to all motors
and start the circulating pumps. After full flow has been established through all components including the heat rejector
(regardless of season), air vented and loop temperatures stabilized, each of the units will be ready for check, test and start
up and for air and water balancing.
Ground Source Loop System Checkout
Once piping is completed between the unit pumping system and ground loop, final purging and charging of the loop is
needed. A high pressure pump 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 may decrease soon after initial installation, due to pipe
expansion and loop temperature change. Running the unit for at least 30 minutes after the system has been completely
purged of air will allow for the “break-in” period. It may be necessary to adjust static loop pressure (by adding water) after
the unit has run for the first time. Loop static pressure will also 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 charging the
system initially.
Ensure the pump provides adequate flow through the unit by checking pressure drop across the heat exchanger.
Usually 2.25-3.0 gpm of flow per ton of cooling capacity is recommended in earth loop applications.
15
Page 16
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Open Loop Ground Water Systems
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 SW1-Switch #2 to the
“WELL” position
mended to eliminate water hammer.
Water Quality
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. Desuperheater 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.
(Refer to the Dip Switch Field Selection table). Slow opening/closing solenoid valves (type VM) are recom-
Units with cupronickel heat exchangers are recommended for open loop applications due to the increased resistance to
build-up and corrosion, along with reduced wear caused by acid cleaning.
AmmoniaLess than 2 ppmLess than 2 ppmLess than 20 ppm
Ammonia ChlorideLess than 0.5 ppmLess than 0.5 ppmLess than 0.5 ppm
Ammonia NitrateLess than 0.5 ppmLess than 0.5 ppmLess than 0.5 ppm
Ammonia HydroxideLess than 0.5 ppmLess than 0.5 ppmLess than 0.5 ppm
Ammonia SulfateLess than 0.5 ppmLess than 0.5 ppmLess than 0.5 ppm
Total Dissolved Solids (TDS)Less than 1000 ppm1000 - 1500 ppm1000 - 1500 ppm
LSI Index+0.5 to -0.5+0.5 to -0.5+0.5 to -0.5
Iron, FE
Bacterial Iron Potential
Iron Oxide
Suspended Solids
Threshold Velocity
(Fresh Water)
Less than 0.5 ppm (rotten egg
SulfatesLess than 125 ppmLess than 125 ppmLess than 200 ppm
2
+ (Ferrous)
smell appears at 0.5 ppm)
Less than 1 ppm, above this
level deposition will occur
Less than 10 ppm and filtered
for max. of 600 mic
7 - 97 - 97 - 9
(Total Hardness)
less than 350 ppm
< 0.2 ppm< 0.2 ppm< 0.2 ppm
ron size
< 6 ft/sec< 6 ft/sec< 6 ft/sec
(Total Hardness)
less than 350 ppm
10 - 50 ppmLess than 1 ppm
Less than 1 ppm, above this
level deposition will occur
Less than 10 ppm and filtered
for max. of 600 micron size
(Total Hardness)
less than 350 ppm
Less than 1 ppm, above this
level deposition will occur
Less than 10 ppm and filtered
for max. of 600 micron size
2/22/12
16
Page 17
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Electrical Connections
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.
208 Volt Operation
All Envision Series 208/230 units are factory wired for 230 volt operation. For 208 volt operation, the red and blue
transformer wires must be switched.
Microprocessor Remote Thermostat Wiring
Figure 5
Requires common
connection or 24
VAC for activation
Field
Connections
24 VAC
COMMON
COMPRESSOR
REVERSING
VALVE
FAN
LOCKOUT
SIGNAL
SHUTDOWN
Connections
TB
R
C
Y
O
G
L
S
X2
X1
W2
Unit
Red
Black
Yellow
Orange
Green
Brown
Blue
17
Page 18
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Electrical Data
Model
09
12
15
18
HACR circuit breaker in USA only6/10/13
Rated
Voltage
115/60/1104/12712.58.050.01.59.511.515
208-230/60/1187/2536.44.121.00.64.75.710/15
265/60/1238/2926.74.322.00.64.96.010/15
115/60/1104/12714.89.550.01.511.013.420
208-230/60/1187/2537.74.925.00.65.56.710/15
265/60/1238/2927.04.522.00.65.16.210/15
208-230/60/1187/2539.25.929.02.68.510.015
265/60/1238/2927.85.028.02.57.58.710/15
208-230/60/1187/25310.46.733.52.69.311.015
265/60/1238/2928.75.628.02.58.19.515
Voltage
Min/Max
MCCRLALRA
Compressor
Blower
Motor
FLA
Total
Unit
FLA
Min
Circ
Amp
Max
Fuse/
HACR
Blower Performance Data
Model
09
12
15
18
Air fl ow values are with dry coil and standard fi lter.
For wet coil performance, fi rst calculate the face velocity of the air coil
(face velocity (fpm) = airfl ow (cfm) / face area (sq ft))
Low SpeedHigh Speed
260300
300340
375450
450600
CFM
18
Page 19
Wiring Schematics
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)
g
g
y
g
y
g
y
)
)
CCM with Remote Thermostat - 208-230-265/60/1
PSC
Blower
CRY1OGLS
Terminal Board
X2 X1 W1
Grn
Red (30
Motor
HL
Black (29
Wht
Blower Switch
Red
Black
Yellow
Orange
Green
Brown
Pink
White
Brn
Cap
High
Low
Not Used
Black (25)
White (28)
Black (27
Brown (26
4
2
RB
5
Orange (21
PB-2
1
2
Yellow
Orange
Green
Yellow (10
RV
13
RB
Black (22
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Compressor
C
S
Blue
Handi - Box
24V
Black/White
C
R
LO
CG
CC
HP
HP
LP
LP
Ground
R C
LO
CG
CC
HP
HP
LP
LP
Lug
24 V Supply for Start/
TEST
PIN
COMPRESSOR
CONTROL MODULE
NOTE 3
Stop Signal
Violet (4)
Red
Brown
Black
CC
Tan (33)
T2
Violet (5
R
RedBlk
L2
NOTE 2
T1
CC
L1
Green (00
FS
Black (31)
Red (32
Black
Blue
230V
265V
PB
1
2
3
HP
LP
NOTE 1
208V
Transformer
NOTE 3
RSR
45
Black/White (1
Red (2
Brown (3
Violet (4)
Violet (5
Black (6
Black (7)
Blue (8)
Blue (9
Yellow (10
Red
Yellow
Power Supply
208-230/60/1 or
265-277/60/1
31
RSR
Unit
G
Pink
Legend
Legend
Factory low voltage wirin
Factor
line voltage wirin
Factory low voltage wirin
Factory line voltage wirin
1. Switch Red and Blue wires for 208 volt operation.
2. Terminal C of the 24V PB is used as “L” output for
Brown wire 3 for Lockout.
3. When installed, 24VAC connection for remote
start/stop controller option.
97P827-01 6/24/11
19
Page 20
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
r
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y
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Y
Y
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)
)
A
)
)
)
)
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)
)
)
)
)
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)
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y
)
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Wiring Schematics cont.
CCM with Unit Mounted Thermostat - 208-230-265/60/1
PSC
Blower
Moto
Brn
Wht
Cap
White (28
ůŽǁĞƌ^ǁŝƚĐŚ
High
Low
White (18
Red (17
Red (11
mistor
SHUT
DOWN
Ther
24 V
C
T3
T1
T2
T4
T6
T5
IN
PUT
T3
Black (25
DŽĚĞ^ǁŝƚĐŚ
4
6
1
ƵƚŽ
Fan
3
Black
Black
Red
Black (12
Red (11
Orange
5
Red
2
Red (15
Red (16
4
ST
Red (19
T
Z
Red (17
Yellow (13
Orange (14
Blue (T6
^ŚƵƚĚŽǁŶ
Yellow (13
2
5
24VAC
Black (27
Brown (26
Yellow (10
ŽŶƟŶƵŽƵƐ
&ĂŶDŽĚĞ^ǁ
Cycled
Zs
White (20
Orange (21
Not Used
White (18
1
Z
Shut down
Overide
J1
Grn
HL
Black (29
Red (30
Yellow (13
ůĞĐƚƌŽŶŝĐd,ZDK^dd
,ĞĂƚ
T1
T2
T4
T5
T6
ŽŽů
3
Blue
Tan (33)
White (28
Black (22
Compressor
S
T2
Red (19
Black (12
Black (22
R
RedBlk
L2
CC
C
T1
L1
Green (00
PB
1
2
3
Brown (26
Black
Blue
230V
265V
dƌĂŶƐĨŽƌŵĞƌ
NOTE 2
CC
&^
NOTE 3
NOTE 1
HP
LP
Black (31
Red
208V
Yellow
Red (32
24V
Black/White
Black/White (1
Red (2
Brown (3
Violet (4
Violet (5
Black (6
Black (7
Blue (8
Blue (9
Yellow (10
Handi - Box
Ground
C
R
LO
CG
CC
HP
HP
LP
LP
Unit
Power Supply
Lug
R C
LO
CG
CC
HP
HP
LP
LP
208-230/60/1 or
265-277/60/1
G
TEST
PIN
COMPRESSOR
CONTROL MODULE
Legend
Factory low voltage wirin
line voltage wirin
Factor
Field low voltage wirin
Field line voltage wirin
Quick connect terminal
Wire nut
CC - Compressor Contactor
DT - Damper Terminal Block
FS - Freeze Sensing Device
HP - High Pressure Switch
LP - Low Pressure Switch
PB - Power Block
RB - Blower Rela
RV - Reversing Valve Coil
ST - Enterin
Air Temperature Sensor
L1
Field wire lu
Earth Ground
Relay Contacts -
N.O., N.C.
132
P
Polarized
Connector
20
HP
Switch - High Pressure
LP
Switch - Low Pressure
Rela
Capacitor
Thermistor
T
Temperature Switch
coil
Notes:
1. Switch Red and Blue wires for 208 volt operation.
2. Terminal C of 24 V PB is used as “L”output for
Brown wire 3 for Lockout.
3. Optional field installed freeze sensing device.
97P827-02 7/14/11
Page 21
Wiring Schematics cont.
y
g
y
g
g
g
g
g
g
r
r
g
y
)
)
)
)
)
)
)
)
)
)
)
)
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Versatec with Remote Thermostat - 208-230-265/60/1
Compressor
PSC
Blower Speed
Switch
Blowe
Moto
Grn
HL
Black (29)
Red (30
HighLow
Black (25
White (28
4
Brn
Brn/Wht
Cap
RB
NOTE 3
2
Blue
Tan (36
White (28
Black (27
Red 208V
S
R
Red
Blue 230V/265V
Transformer
C
Black
Handi - Box
T1T2
CC
L1L2
Black (31
Red (32)
CC
Black
Brown (26
24V
White (20
Black/White
Green (00
Yellow
Unit
Power Suppl
P3
2
Red
Black
208-230/60/1 or
265-277/60/1
G
31
RB
Black (22
FanFan COM
CPU
ESLOGOYCR
e
Green
Brown
Yellow
Oran
P2
1
Black
6
Black
2
Blue
7
Blue
3
8
4
Orange
9
Orange
5
Yellow
10
SW1
Off
On
1
Test / Normal
2
Loop / Well
3
Com T-Stat / Normal
4
Inputs / Normal
5
9876543
Blue
Split Mode / Normal
White
Not Used
Yellow
Brown
HP
LP
CO
RV
T
FS
Ground
Lu
Orange (21
CC
CCG
C
C
R
R
1
P1
NOTE 1
Black/
Black/
White
White
Factor
Factory line voltage wirin
Field low voltage wirin
Field line voltage wirin
DC voltage PCB traces
Internal junction
Quick connect terminal
Wire nut
L1
Field wire lu
low voltage wirin
Relay ContactsN.O., N.C.
Thermistor
T
Rela
coil
MV
NOTE 2
Switch - Hi
h pressure
Switch - Low pressure
132
P
Polarized connector
Condensate Overflow
CRY1OGLS
Terminal Board
Legend
Legend
CC – Compressor Contactor
CO – Condensate Overflow
DT – Damper Terminal Block
ES – Emergency Shutdown
FS – Freeze Sensing Device
HP – High Pressure Switch
LP – Low Pressure Switch
MV – Motorized Valve
RB – Blower Power Relay
RV – Reversing Valve Coil
SW1 – DIP Switch #1
X2 X1 W1
Notes:
1 - Requires common connection or 24 VAC for activation.
2 - When field installed 24VAC motorized valve is used,
connect to C and Y.
3 - Switch blue and red wires for 208V operation.
Ground
97P828-01 6/24/11
21
Page 22
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
r
r
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)
)
)
g
g
g
g
g
g
y
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
Wiring Schematics cont.
Versatec with Unit Mounted Thermostat - 208-230-265/60/1
Compressor
C
S
R
Black
Red
T1T2
CC
L1L2
Black (31
Red (32
Blower Speed
Switch
Grn
Black (29)
High
HL
Red (30
PSC
Blowe
Moto
Low
White (28
Blue
Brn/Wht
Brn
Cap
Tan (33)
White (28
Handi - Box
Ground
Lug
Unit
Power Supply
208-230/60/1 or
265-277/60/1
G
Shut down
Overide
Red
Black (25
ůĞĐƚƌŽŶŝĐd,ZDK^dd
,ĞĂƚ
dϭ
dϮ
dϯ
dϰ
dϱ
dϲ
ŽŽů
J1
RB
2
4
Mode Switch
Black
Black
Red
Black (12
Red (11
Orange
4
6
1
3
Fan Mode Switch
Cycled
ŽŶƟŶƵŽƵƐ
ST
T
Red
Red (15
Red (16
ƵƚŽ
Fan
5
2
Yellow (13
Orange (14
Blue (T6
Green
24VAC
Shutdown
NOTE 3
Yellow (13
Red (11
White (18
Red (17
Ther
IN
PUT
mistor
24 V
AC
dϯ
dϭ
dϮ
dϰ
dϲ
dϱ
SHUT
DOWN
Yellow
Red (19
Not Used
Black (27
NOTE 1
Red 208V
Blue 230V/265V
Transformer
Yellow Black/White
Black
31
RB
FanFan COM
CPU
2
Black (22
ESLOGOYCR
Black (12)
Off
1
2
3
4
5
SW1
On
Test / Normal
Loop / Well
Com T-Stat / Normal
Inputs / Normal
Split Mode / Normal
P2
1
Black
6
Black
2
Blue
7
Blue
3
8
Orange
4
Orange
9
5
Yellow
Yellow
10
Brown
HP
LP
CO
RV
T
FS
9876543
CC
24V
Brown (26)
White (20
Black/White
Green (00
Yellow
Red (19
Orange (21
CC
CCG
C
C
R
R
P3
1
P1
Green
Yellow
1
Orange
2
NOTE 2
Brown
PB
Legend
Legend
Factory low voltage wirin
Factory line voltage wirin
Factory low voltage wirin
Factory line voltage wirin
Quick connect terminal
Wire nut
CC - Compressor contactor
CO - Condensate overflow
FS - Freeze sensing device
HP - High pressure switch
LP - Low pressure switch
RB - Blower power relay
RV - Reversing Valve coil
SW1 - DIP switch #1
ES - Emergency Shutdown
Wiring lu
L1
Ground
Relay Contacts N.O., N.C.
HP
Switch - Hi
LP
Switch - Low Pressure
Rela
Capacitor
Thermistor
T
coil
h Pressure
Notes:
1. Switch Red and Blue wires for 208 volt operation.
2. Terminal 2 of the 24V PB is used as “L” output
for Brown wire 3 for Lockout.
3. When installed, 24VAC connection for remote
start/stop controller option.
Temperature Switch
97P828-03 7/14/11
22
Page 23
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Wiring Schematics cont.
CCM with ECM and Unit Mounted Thermostat - 208-230-265/60/1
Note 4
Shut down
Overide
J1
ECM
Motor
ECM
Motor
Module
Grn
Brown
Orange
Brown/Whtite
Yellow (13)
Electronic THERMOSTAT
A Heat
T1
T2
T3
T4
T5
T6
B Cool
IN
PUT
Fan Switch
High
Low
White (18)
Red (17)
Red (11)
Ther
mistor
24 V
AC
T3
T1
T2
T4
T6
T5
SHUT
DOWN
Black (25)
Mode Switch
4
6
1
Auto
Fan
3
Black
Black
Red
Black (12)
Red (11)
Orange
5
2
Red
Red (15)
Red (16)
4
ST
T
Red (19)
RB
Red
Black
Red (17)
Yellow (13)
Orange (14)
Blue (T6)
24VAC
Shutdown
Yellow (13)
2
5
Black (27)
Brown (26)
Yellow (10)
Continuous
Fan Mode Sw
Cycled
Brown (26)
Compressor
C
S
Blue
Handi - Box
Ground
R C
LO
CG
CC
HP
HP
LP
LP
Y
Lug
R C
LO
CG
CC
HP
HP
LP
LP
Y
R
RedBlk
Tan (33)
T1
T2
CC
L1
L2
Black
Blue
230V
265V
PB
Red (19)
Black (12)
Black (22)
Black (22)
White (18)
1
3
White (20)
RV
Not Used
RB
Orange (21)
1
2
3
Green (34)
NOTE 3
NOTE 1
Transformer
NOTE 2
CC
FS
HP
LP
Black (31)
Red (32)
Red
208V
Yellow
24V
Black/White
Black/White (1)
Red (2)
Brown (3)
Violet (4)
Violet (5)
Black (6)
Black (7)
Blue (8)
Blue (9)
Yellow (10)
Unit
Power Supply
208-230/60/1 or
265-277/60/1
G
TEST
PIN
COMPRESSOR
CONTROL MODULE
Blower Seƫngs
HighLow
LC15OrangeBrown
LC18Brown/WhiteOrange
Factory low voltage wiring
Factory line voltage wiring
Field low voltage wiring
Field line voltage wiring
Quick connect terminal
Wire nut
CC - Compressor Contactor
DT - Damper Terminal Block
FS - Freeze Sensing Device
HP - High Pressure Switch
LP - Low Pressure Switch
PB - Power Block
RB - Blower Relay
RV - Reversing Valve Coil
ST - Entering Air Temperature Sensor
Legend
L1
Field wire lug
Earth Ground
Relay Contacts -
N.O., N.C.
132
P
Polarized connector
23
HP
LP
T
Switch - High Pressure
Switch - Low Pressure
Relay coil
Capacitor
Thermistor
Temperature Switch
Notes:
1. Switch Red and Blue wires for 208 volt
operation
2. Terminal C of 24 V PB is used as “L”
output for Brown wire 3 for Lockout.
3. Optional field installed freeze sensing device.
4. Factory wired. Refer to blower table settings.
Page 24
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Wiring Schematics cont.
FX10 with ECM and Unit Mounted Thermostat - 208-230-265/60/1
NOTE 5
24VAC
24V COM
Alarm
Acc 1
Acc 2
Fan
Rev Valve
Comp
Setpoint Shift
AI Com
Room Sensor
Sensor Com
Temp Occ
TB
R
C
L
X1
X2
G
O
Y1
SS
AIC
RS
SC
TO
LC1
LC2
Black (111)
Black (310)
PB2
L2
L1
Molex
Plug
NOTE 2
Black (31)
Fan Speed
NOTE 3
Switch
NOTE 4
Note 6
Not Used
Motor
Module
Grn
Brown
Orange
HighLow
FS
DA
Green (17)
Orange (19)
Red (120)
Yellow (21)
CP/FP
Gray (26)
ES
OS
ECM
Brown/Whtite
CO
DF/AP
LP
Orange (30)
Brown (1)
Brown (2)
White (5)
T
Wht/Blu (6)
Blk (128)
T
Blk/Red (129)
Blu/Wht (10)
Org/Bck (11)
Org/Wht (12)
Gry/Wht (14)
Black (6)
Black (22)
Violet (23)
Red (24)
Blue (27)Blue
Pink (28)
Blk/Wht (29)
11K
ECM
Motor
Gray/White
J8
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
J2
39
40
41
J10
42
43
44
45
46
47
48
J9
49
50
51
52
53
54
55
56
5VDC
AI3
+
AI5
+
AI4
+
AI6
+
-
AI2
+
5VDC
-
AI1
+
LED
5VDC
PWM2
PWM2 Com
PWM1
24VAC Com
DI12
DI11
DI10
DI9
DI8
DI7
DI 3/4/5/6/ Com
DI6
DI5
DI4
DI3
DI2
9VDC
DI1
RB
4 2
A21A12
A23
Compressor
S
Blu
C
Handi - Box
Ground
Lug
R
BlkRed
Tan
T1
T2
Unit
Power Supply
208-230/60/1 or
265/60/1
G
CC
L2
L1
Molex
Black
White
Black
Blue 240V
265V
NOTE 1
Red 208V
Transformer
Green
PB1
Plug
Red (20)
Black (1)
Yellow (16)
Black
(12)
Black (111)
Black (310)
Yellow (9)
Orange (7)
Black (6)
Black (5)
Blue (4)
Gray (3)
Black (2)
L1
L2
Not Used
HP
RB
Blk/Wht
Yellow
Black/White
White
RV
Orange
CC
31
Black
Red
Black
Black
Yellow (33)
Black/White (34)
Black (131)
Black (515)
Black(121)
Black (6)
Yellow (35)
Green (37)
24VAC
24VAC Com
GROUND
A34
A24
A14
A35
A25
A31
A32
A22
A13
A11
A15
Johnson FX-10
J7
Blk/Wht (36)
20
19
D09
18
D08
17
16
15
D07
A33
14
13
D06
12
11
D05
D04
10
9
8
7
D03
6
5
D02
4
3
2
D01
1
L1
Ground
Factory low voltage wiring
Factory line voltage wiring
Field low voltage wiring
Field line voltage wiring
Field Zone Sensor Wiring
Internal junction
Quick connect terminal
Wire nut
Field wire lug
Relay Contacts-
N.O., N.C.
Thermistor - Johnson Control
T
Relay coil
Open Jumper
Closed Jumper
P
3
2
Legend
Switch - High pressure
Switch - Low pressure
Polarized connector
1
Condensate Overflow
24
CC - Compressor Contactor
CO - Condensate Overflow
CP/FP - Compressor Proving/Fan Proving
DA - Discharge Air Temperature
DF/AP - Dirty Filter/Air Proving
ES - Emergency Shutdown
FS - Freeze Sensing Device
HP - High Pressure Switch
LP - Low Pressure Switch
OS - Occupied Switch
RB - Blower Power Replay
RV - Reversing Valve Coil
TB - Terminal Block
Notes:
1 - Switch Blue and Red wires for 208V operation
2 - Disconnect for 15 degree freeze sensing
3 - Acc 1 output is cycled with the compressor.
4 - Acc 2 output is cycled with the fan.
5 - R, C, Y1, O, and G inputs are for use with a wall mounted
thermostat.
6 - Factory wired. Refer to blower table settings.
Blowe r Seƫngs
LC15OrangeBrow n
LC18Brown/WhiteOrange
HighLo w
Page 25
Wiring Schematics cont.
gClg
)
A
(
g
A
g
Versatec Control Board
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Normal Mode Control Timing Table
Blower off delay
Compressor on delay
Compressor short cycle delay
Minimum compressor on time
High pressure fault recognition delay
Low pressure fault recognition delay
Freeze sensing fault recognition delay
Condensate overflow fault recognition delay
Low pressure fault bypass delay
Freeze sensing fault bypass delay
Power on delay
30 seconds
10 seconds
5 minutes
2 minutes (except for fault condition)
Less than 1 second
30 seconds
Blower off delay
Compressor on delay
Compressor short cycle delay
Minimum compressor on time
High pressure fault recognition delay
Low pressure fault recognition delay
Freeze sensing fault recognition delay
Condensate overflow fault recognition delay
Low pressure fault bypass delay
Freeze sensing fault bypass delay
Power on delay
Fault off time
5 seconds
2 seconds
15 seconds
5 seconds (except for fault condition)
Less than 1 second
30 seconds
30 seconds
30 seconds
0 seconds
0 seconds
15 seconds
5 minutes
LED Display Mode Table
LEDNormal Display Mode
SW1-4 On, SW2 Off
Drain pan overflow lockout
Drain
Water Flow
Water Flow
*Flashing Status light indicates microprocessor is functioning properly. Solid "on" indicates a
microprocessor malfunction.
FS thermistor (loop<=15°F, well<=30°F) lockout
High pressure lockout
High Press
Low pressure lockout
Low Press
Not used
ir Flow
Microprocessor malfunction*
Status
Not Used
DHW Limit
SW2 status (Off=down position,On=up position
HWD
LED
Drain
h Press
Hi
Low Press
ir Flow
Status
DHW Limit
HWD
Current Fault Status
SW1-4 On, SW2 On
Drain pan overflow
FS thermistor
High pressure
Low pressure
Not used
Not used
Not used
SW2 in the On position
module) is a more reliable
replacement for electro-mechanical
control applications. It features a
small microprocessor board that
handles the lockout function of
the unit. A second microprocessor
handles the unit mounted
thermostat for maintaining accurate
room temperature.
microprocessor based board that
adds the features of emergency
shutdown (ES), water freeze
detection (FD) and condensate
overfl ow (CO). The Versatec
Control also features Optional Field
servicing LEDs for mode, Fault and
diagnostic indication.
Residential and commercial
applications requiring minimal
but reliable controls. Includes
Random Start, High and low
pressure switches and auto
changeover capability.
Residential and commercial
applications requiring more
controls features than CCM and
Includes Random Start, High
and low pressure switches,
auto changeover capability,
emergency shutdown (ES),
water freeze detection (FD),
and condensate overfl ow (CO).
Dial thermostat with Hi
and Low blower speeds,
and auto changeover
or continuous blower
selection switches.
Optional fi eld
servicing LED board
for mode, fault and
diagnostic indication
NoneUnit Mounted Digital
NoneUnit Mounted Digital
Dial Thermostat
Remote Mounted
Standard Thermostat
Dial Thermostat
Remote Mounted
Standard Thermostat
FX10The FX10 microprocessor control
FX10 w/ N2FX10 Control functions as both
FX10 w/ LonWorksFX10 Control functions as both
FX10 w/ BACnetFX10 Control functions as both
is self contained control featuring
LP, LOC, HP, LWT, and condensate
overfl ow fault modes can be
displayed on BAS system. Optional
handheld Medium User Interface
(MUI) Control can be used for
additional setup or servicing.
Program customization is possible.
This control is suited for both
single and dual capacity
compressors as well as PSC and
ECM2.3 blower motors.
unitary heat pump control and DDC
communication, therefore detail
operational and fault information
is available to BAS. Other features
are same as FX10 with addition of
Johnson Controls N2 compatibility.
unitary heat pump control and DDC
communication, therefore detail
operational and fault information is
available to BAS. Other features are
same as FX10 with addition of
LonWorks compatibility.
unitary heat pump control and DDC
communication, therefore detail
operational and fault information
is available to BAS. Other features
are same as FX10 with addition of
BACnet compatibility.
Commercial applications
using single and dual capacity
compressors with either PSC or
ECM2.3 blower motors. Also
suitable for multi-compressor
products. Cannot be integrated
with centralized building
automation systems.
Software can be customized for
specifi c projects.
Same as FX10 with Johnson
Controls N2
BAS compatibility.
Same as FX10 with LonWorks
BAS compatibility.
Same as FX10 with BACnet
BAS compatibility.
Due to communication speed,
no more than 30 units should
be connected to a single trunk
of the network.
Optional Medium User
Interface (MUI) can be
used as a fi eld
service tool.
Optional Medium User
Interface (MUI) can be
used as a
fi eld service tool.
Optional Medium User
Interface (MUI) can be
used as a fi eld
service tool.
Optional Medium User
Interface (MUI) can be
mounted or used as a ield
service tool.
StandaloneRemote Mounted
Johnson
Controls
N2 network
LonWorksRemote Mounted
BACnet - MS/
TP (19,200
Baud Rate)
Standard Thermostat
Remote
Mounted Sensor
Remote Mounted
Standard Thermostat
Remote
Mounted Sensor
Standard Thermostat
Remote
Mounted Sensor
Remote Mounted
Standard Thermostat
Remote Mounted Sensor
Standard CCM Control Features
Compressor control module (CCM) controls are standard on
the Envision Series Low Sill Console heat pump. This control
features unit mounted thermostat and switches,
Features of the standard control are:
• Easy to understand color coded thermostat
adjustment markings.
• Large, rocker type mode and blower switches.
• Internally mounted blower switch to choose cycled or
constant blower operation.
• High pressure and low pressure safety controls to
protect the unit components.
• Lockout circuit to shut down unit operation upon receipt
of a fault indicator from the safety controls.
• A 24 volt control circuit allows for safe and
easy diagnosis.
26
Page 27
Controls cont.
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
The user selects either “Heat/Cool” or “Fan Only” on the
mode switch, then either “High” or “Low” at the blower
speed switch. The temperature can be controlled by
rotating the thermostat control knob.
Unit Mounted Control
The “Fan Only” setting provides constant blower operation.
In the “Heat” mode, a call for heat by the thermostat
closes the compressor contactor contacts, energizing the
compressor, which will run until the thermostat is satisfied.
In the “Cool” mode, a call for cooling by the
thermostat energizes the reversing valve and closes
the compressor contactor contacts, energizing the
compressor, which will run until the thermostat is satisfied.
Component Sequencing Delays
Components are sequenced and delayed for optimum
unit performance.
Emergency Shutdown
A grounded signal to common or connecting 24 VAC to
the ES terminal places the controller into the emergency
shutdown mode. The compressor and blower operation are
suspended while in the emergency shutdown mode.
Condensate Overflow Protection
The board incorporates an impedance liquid sensor at
the top of the condensate drain pan. Upon a continuous
30-second sensing of the condensate, the cooling
operation of the unit is suspended.
Safety Controls
The microprocessor board receives separate signals from
a high pressure switch for safety, a low pressure switch
to prevent loss of refrigerant charge and a low suction
temperature thermistor for freeze detection. Upon a
continuous 30-second measurement of the fault (immediate
for high pressure), compressor operation is stopped.
If either the low or high pressure safety switches are
opened, the compressor and reversing valve are disabled
by the lockout relay. Unit operation will resume only after
the voltage to the unit is interrupted or the mode switch is
placed in the “Off” position.
Optional Versatec Microprocessor
Control Features
The Versatec microprocessor board provides control of
the entire unit as well as outputs for status modes, faults
and diagnostics. The control system is a microprocessorbased control board that is located in the unit control box.
This feature is available for either unit mounted controls
or optional remote wall mounted thermostat. A 9-pin low
voltage terminal strip provides all necessary terminals for
the wall mounted thermostat.
Startup
The unit will not operate until all the inputs and safety
controls are checked for normal operating conditions.
Fault Retry
All faults are retried twice before finally locking the unit
out to prevent nuisance service calls.
27
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ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Controls cont.
Control Tables for Optional Versatec Microprocessor
Logic Board DIP Switch Settings
SwitchOFFON
SW1 - 1
SW1 - 2
SW1 - 3
SW1 - 4
SW1 - 5
Normal Control TimingOperational Logic
Blower off delay
Compressor on delay
Short cycle delay
Minimum compressor on time
High pressure fault recognition delay
Low pressure fault recognition delay
Freeze detection fault recognition delay
Condensate overflow fault recognition delay
Low pressure fault bypass delay
Freeze detection fault bypass delay
Power on delay
Test - Selected timings sped up to facilitate troubleshootingNormal - Standard timings
Commercial - Enables NS features when TA32U02 thermostat is usedNormal - Standard thermostat operation
IO Display* - Enables Input/Output display on external LED boardNormal* - Unit status display
Configures board for 2-speed compressor without blowerConfigures board for 2-speed compressor with blower
30 seconds
10 seconds
5 minutes
2 minutes (except for fault condition)
Less than 1 second
30 seconds
30 seconds
30 seconds
2 minutes
2 minutes
5 minutes
ModeInputsBlowerCompRV
Htg
Clg
Blower
YONONOFF
Y,OONONON
GONOFFOFF
Test Control Timing
Blower off delay
Compressor on delay
Short cycle delay
Minimum compressor on time
High pressure fault recognition delay
Low pressure fault recognition delay
Freeze detection fault recognition delay
Condensate overflow fault recognition delay
Low pressure fault bypass delay
Freeze detection fault bypass delay
Power on delay
Fault off time
Diagnostic Modes
LED
Drain
Water Flow
High Press
Low Press
Air Flow
Status
DHW Limit
HWD
Current Fault Status
SW1 - #4 On, SW2 On
Drain pan overflowYCompressor
FD thermistor (loop <15°F, well <30°F)GBlower
High pressure >600 psiOO
Low pressure <40 psiESES
Not usedNot UsedNot Used
Not usedNot UsedNot Used
Not usedNot usedNot used
SW2 in the On positionOff positionOn position
5 seconds
2 seconds
15 seconds
5 seconds (except for fault condition)
Less than 1 second
30 seconds
30 seconds
30 seconds
0 seconds
0 seconds
15 seconds
5 minutes
SW1 - #4 Off, SW2 Off
Inputs
Outputs
SW1 - #4 Off, SW2 On
28
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Controls cont.
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Optional FX10 Control
Main FX 10 Board
The optional FX10 control provides unparalleled capability
in several areas including performance monitoring, zoning,
humidity, energy management, and service diagnosis, and
then communicates it all thru standard DDC protocols like
N2, Lon and BACnet (MS/TP @ 19,200 Baud rate).
The most unique feature is integrating the FX10 into the
Envision series as both the heat pump and DDC controller
providing both a cost advantage and providing features
not typically found on WLHP controls. This integration
allows heat pump monitoring sensors, status and service
diagnosis faults to be communicated thru the DDC direct
to the building automation system (BAS), giving building
supervisors detailed and accurate information on every
piece of equipment without removing an access panel.
FX10 Advanced Control Overview
The Johnson Controls FX10 board is specifically designed
for commercial heat pumps and provides control of the
entire unit as well as input ports for Open N2, LonTalk,
BACnet (MS/TP @ 19,200 Baud rate) communication
protocols as well as an input port for a user interface. The
user interface is an accessory item that can be used to aid
in diagnostics and unit setup. A 16-pin low voltage terminal
board provides terminals for common field connections. The
FX10 Control provides:
• Operational sequencing
• High and low-pressure switch monitoring
• General lockout
• Freeze detection
• Condensate overflow sensing
• Lockout mode control
• Emergency shutdown mode
• Random start and short cycle protection
Short Cycle Protection
Allows a minimum compressor “off” time of four minutes
and a minimum “on” time of two minutes.
Random Start
A delay of 1 to 120 seconds is generated after each powerup to prevent simultaneous startup of all units within a
building after the release from an unoccupied cycle or
power loss.
Emergency Shutdown
A field-applied dry contact can be used to place the control
into emergency shutdown mode. During this mode, all
outputs on the board are disabled.
Freeze Detection Limit
Field selectable for 15° or 30°F (-9° or -1°C)
Installation Options
• Standalone controlled by standard room thermostat
• Standalone with a Zone Temperature Sensor (must
have user interface to change set points beyond the
allowed +/- 5°F)
• Integrated into BAS by adding communication module
Accessory Outputs
Quantity 2. One cycled with blower, other with compressor.
User Interface
4 x 20 backlit LCD.
Optional Plug-in Communication Modules (compatible with standard BAS protocols)
• Open N2
• LonTalk
• BACnet (MS/TP @ 19,200 Baud rate)
Display
Requires DLI Card/Kit. Up to 2 displays, either 1 local and
1 remote, or 2 remote. (A 2-display configuration requires
identical displays.) Local display can be up to 3 meters
from the controller, power supply, and data communication.
Remote display can be up to 300 meters from the
controller. Remote display must be independently powered
with data communication done via 3 pole shielded cable.
Control Timing & Fault Recognition Delays
Lead compressor “ON” delay ..........................................90 seconds
(not applicable for single compressor models)
Minimum compressor “ON” time ...................................... 2 minutes
(except for fault condition)
Short cycle delay ..................................................................... 5 minutes
Random start delay ....................................................... 0-120 seconds
High pressure fault ................................................................. <1 second
The FX10 is a microprocessor based control that not
only monitors and controls the heat pump but also can
communicate any of this information back to the building
automation system (BAS). This means that not only does
the control monitor the heat pump at the unit you can also
monitor and control many the features over the BAS. This
clearly puts the FX10 in a class of its own.
The control will enumerate all fault conditions (HP, LP, CO,
LOC, and Freeze Detection) over a BAS as well as display
them on a medium user interface (MUI). HP, LP, CO and
Freeze Detection faults can all be reset over a BAS. A
Loss Of Charge fault can not be reset or bypassed until
the problem has been corrected. A MUI is invaluable as a
service tool for the building service team.
The unit can be commanded to run by a typical heat
pump thermostat or run based on heating and cooling
set points supplied by a BAS. The control board is wired
with quick connect harnesses for easy field change out
of a bad control board. An alarm history can be viewed
through the MUI and will be held in memory until the unit is
power cycled. Relative humidity can be read by a 0-5VDC
humidity sensor that is displayed over the network.
The FX10 control has unused analog and digital inputs
for field installed items such as air temperature, water
temperature, CO
unused binary and PWM outputs that can be commanded
over the BAS for field use. An optional Medium User
Interface (MUI) for control setup and advanced diagnostics
is available with some mounting kits, MUIK3 - Panel mount
version and the MUIK4 - Wall mount version.
2
or current status switches. The control has
Zone Sensors
There are two options for zone sensors that can be used
with the FX10 control. Both sensors use a Johnson controls
A99 positive temperature coefficient type sensor. The
TAXXJ02 has a set point adjustment now which will give
the end user a +/- 5°F adjustment from the set point as
well as a push button that can be used for temporary
occupancy. The control leaves the factory set to operate
with a TAXXJ02 sensor and can be changed to read the
TAXXA04 sensor through a building automation system or
with a user interface.
Standard Features
• Anti Short Cycle
• High Pressure Protection
• Low Pressure Protection
• Freeze Detection
• Loss Of Charge Detection
• Random Start
• Display for diagnostics
• Reset Lockout at disconnect or through BAS
• 2 Accessory outputs
• Optional BAS add-on controls
DDC Operation and Connection
Other optional network protocol boards that can be added
to the FX10 are:
• Johnson Control N2
• LonWorks
• BACnet
- MS/TP @ 19,200 Baud rate
- Limit devices to 30 on a single trunk line.
Control and Safety Feature Details
Emergency Shutdown
The emergency shutdown mode can be activated by a
command from a facility management system or a closed
contact on BI-2. The default state for the emergency
shutdown data point is off. When the emergency shutdown
mode is activated, all outputs will be turned off immediately
and will remain off until the emergency shutdown mode is
de-activated. The first time the compressor starts after the
emergency shutdown mode has been de-activated, there
will be a random start delay present.
Lockout Mode
Lockout mode can be activated by any of the following
fault signals: refrigerant system high pressure, refrigerant
system low pressure, freeze detection, and condensate
overflow. When any valid fault signal remains continuously
active for the length of its recognition delay, the controller
will go into fault retry mode, which will turn off the
compressor. After the Compressor short cycle delay, the
compressor will attempt to operate once again. If three
30
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Controls cont.
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
consecutive faults occur in 60 minutes during a single
heating or cooling demand, the unit will go into lockout
mode, turning off the compressor, and enabling the alarm
output until the controller is reset. If the control faults
due to the low pressure input (BI-3) being open during
the pre-compressor startup check, the control will go into
lockout mode immediately, disabling the compressor from
starting and enabling the alarm output (BO-6). The lockout
condition can be reset by powering down the controller, by
a command from the BAS, or by the holding the ESC and
Return keys on the MUI for 5 seconds.
Freeze Detection Limit (AI-5)
The freeze detection limit sensor will monitor the liquid
refrigerant temperature entering the water coil in the
heating mode. If the temperature drops below the freeze
detection limit trip point for the recognition delay period,
the condition will be recognized as a fault. The freeze
detection limit trip point will be factory set for 30°F and
will be field selectable for 15°F by removing a jumper wire
on BI-5. The freeze detection limit fault condition will be
bypassed 2 minutes at normal compressor startup, to allow
the refrigeration circuit to stabilize. If the freeze detection
limit sensor becomes unreliable at any time compressor
operation will immediately be suspended until the problem
is corrected. This should be displayed as an alarm on the
BAS and the MUI. This alarm will be reported a “Water Low
Temp Limit” fault.
The condensate will be subjected to a (30) second
lockout delay which requires that the fault be sensed for a
continuous (30) seconds before suspending unit operation.
Alarm Output (BO-6)
The alarm output will be enabled when the control is in the
lockout mode and will be disabled when the lockout is reset.
Test Mode
Raising the zone temperature input (AI-1) reading to 180–
220°F or by holding the ESC and down arrow keys on the MUI
for 5 seconds will put the control into test mode. In test mode
the random start delay and the compressor fixed on delay
time will both be shortened to 5 seconds and the reversing
valve will be allowed to cycle with out shutting down the
compressor. If an MUI is connected to the control LED 8 will
flash and the words “Test Mode Enabled” will be shown on
the LCD display when the control is in test mode. Test mode
will be disabled after a power cycle, 30 minute timeout, or by
holding the ESC and Up arrow keys on the MUI.
Sequence of Operation
Power Fail Restart
When the controller is first powered up, the outputs will
be disabled for a random start delay. The delay is provided
to prevent simultaneous starting of multiple heat pumps.
Once the timer expires, the controller will operate normally.
High Pressure (BI-11)
The high-pressure switch shall be a normally closed (NC)
switch that monitors the systems refrigerant pressure. If
the input senses the high-pressure switch is open it must
disable the compressor output immediately and count the
fault. The compressor minimum on time does not apply if
the high-pressure switch opens. The compressor will not
restart until the compressor short cycle time delay has
been satisfied.
Low Pressure (BI-3)
The low-pressure switch shall be a normally closed (NC)
switch that monitors the systems refrigerant pressure. The
input shall be checked 15 seconds before compressor start
up to be sure the pressure switch is closed and then ignored
for the first 2 minutes after the compressor output (BO-2) is
enabled. If the switch is open continuously for (30) seconds
during compressor operation the compressor output (BO-2)
will be disabled. The compressor will not restart until the
compressor short cycle time delay has been satisfied.
Condensate Overflow
The condensate overflow sensing circuit will monitor
the condensate level as a resistance input to AI-3. If
the condensate water level rises resulting in the input
resistance rising above the set point for the recognition
delay period, the condition will be recognized as a fault.
Random Start Delay
This delay will be used after every power failure, as well as
the first time the compressor is started after the control
exits the unoccupied mode or the emergency shutdown
mode. The delay should not be less than 1 second and not
longer than 120 seconds. If the control is in test mode the
random start delay will be shortened to 5 seconds.
Compressor Fixed On Delay Time
The Compressor Fixed On Delay Time will ensure that the
compressor output (B02) is not enabled for (90) seconds
after the control receives a call to start the compressor.
This delay is adjustable from 30 – 300 seconds over a BAS
or a MUI. If the control is in test mode the Compressor
Fixed On Delay Timer will be shortened to 5 seconds.
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ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Controls cont.
Compressor Minimum On Delay
The compressor minimum on delay will ensure that the
compressor output is enabled for a minimum of (2)
minute each time the compressor output is enabled. This
will apply in every instance except in the event the high
pressure switch is tripped or emergency shutdown then the
compressor output will be disable immediately.
Compressor Short Cycle Delay Time
The compressor short cycle time delay will ensure
that the compressor output will not be enabled for a
minimum of (5) minutes after it is disabled. This allows
for the system refrigerant pressures to equalize after the
compressor is disabled.
Heating Cycle
On a call for heating, the blower enable output and
accessory output 2 will turn on immediately after the
random start delay timer has been satisfied. If the
compressor short cycle time delay has been satisfied,
the compressor will turn on after the blower enable and
accessory output 2 are on and the fixed compressor start
delay timers have been satisfied.
Cooling Cycle
On a call for cooling, the blower enable output and
accessory output 2 will turn on immediately after the
random start delay timer has been satisfied. If the
compressor short cycle time delay has been satisfied,
the compressor will turn on after the blower enable and
accessory output 2 are on and the fixed compressor start
delay timers have been satisfied.
MUI Alarm History Reporting
If a fault occurs the fault will be recorded in history for
display on the medium user interface in the History Menu.
Each fault type will be displayed in the history menu with
a number between 0 and 3. A reading of 3+ will mean
that fault has occurred more than three times in the past.
The history menu can be cleared with a power cycle only.
Alarm date and time are not included in the history.
Inputs and Outputs Configuration
Field Selectable Options
Freeze Detection Limit Set Point (BI-5)
The freeze detection limit set point input allows you to
adjust the freeze detection limit set point (AI-5). When the
jumper is installed on BI-5 (Wire #24) the freeze detection
limit set point is factory set for 30°F. When the jumper on
BI-5 (Wire #24) is removed the freeze detection limit set
point will be 15°F.
Accessory Outputs (BO-7 and BO-8)
Accessory Output 1 will be energized 90 seconds prior to
the compressor output being energized. Accessory Output
2 will be energized with the fan output (BO-1). When
the corresponding compressor output is turned off the
accessory output will be deactivated immediately. These
outputs are selectable for normally open or normally closed
operation through the Medium User interface or through
the Building Automation System.
SINGLE and DUAL STAGE WATER-TO-AIR
Input NameInput Output NameOutput
Zone Temp 1AI 1 Fan EnableBO1
Relative Humidity InputAI 2 Comp – Low CapacityBO2
Condensate LevelAI 3 Reversing Valve BO3
Universal Temp InputAI 4 Comp – Full CapacityBO4
Water Coil Low Temperature LimitAI 5 Network Output/EH OutputBO5
Warm/Cool Adjust and Temp OccAI 6 AlarmBO6
MUI (LCD User interface) for diagnostics
and commissioning.
• MUIK3 - Panel Mount, Portable
• MUIK4 - Wall Mount
32
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Controls cont.
FX10 User Interface (MUI) Physical Layout
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Power LED
Alarm LED
Up ArrowRight Arrow
LED 1
LED 4
LED 8
Alarm LED - Indicates a Lock-Out or a bad Freeze Sensor
Power LED - Shows FX processor is operational
LED 1 - Flashing shows Compressor 1 running
Left ArrowDown Arrow
LED 3 - On shows Fan running
LED 4 - On shows Reversing Valve in cool
LED 8 - Flashing shows unit in ‘Test’ Mode
LED 2 - Flashing shows Full Capacity Compressor running
MUI Menu Navigation for Single Compressor - Envision Water-to-Air
Escape (ESC)
Button
Return Button
Info Status Temps Outputs Settings Maint Alarms Alm-History
Info
WFI
Envision Series
PROFXENV-XX
3/8/07
Status
Run Mode Auto
Eff Occup’y Occ
Y1 Input OFF
Y2 Input OFF
G Input OFF
O Input OFF
Occ Input Occ
Temp Occ Inp OFF
Condensate NML
Emg Input Run
Lo Press ON
Hi Press ON
Rndm Tmr 0
BI-4 Input OFF
Welcom e
Temps
Zone Temp 77.2 ºF
Dis Air Temp 51.0 ºF
Eff Clg Setpt 70.0°F
Eff Htg Setpt 66.0°F
Water Coil 77.8°F
Low WC Limit 30.0°F
Humidity 56.7 %RH
WarmCool AI 14.6
WarmCoolAdj 0.2
OutputsSettings
nvoFanStatus ON
CmpCmd Status OFF
Cmp Capacity OFF
Rev Valve Heat
X1 Output OFF
X2 Output OFF
PWMOut 98%
BO5 OFF
BO9 OFF
AO2 Output 0%
Unit of Measure F
Occ Clg Setpt 73.9 ºF
Occ Htg Setpt 69.9 ºF
Unocc Clg 84.0 ºF
Unocc Htg 60.0 ºF
DeHumSetpt 0%
SensorSelect TAXXJ02
33
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ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Controls cont.
MUI Menu Navigation for Single Compressor - Envision Water-to-Air
Alarms
ALARM SUMMARY
^/High Pressure
Maintenance
MinClgSetpt 60.0 ºF
MaxHtgSetpt 89.9 ºF
W Coil LoLim1 30.0 ºF
W Coil LoLim2 15.0 ºF
TmpOccTime 120 min
Rev Vl v Default Heati n g
BO5 Mode Network
CompStrtDly 90 sec
SpaceT Offset -1 ºF
DehumEnaDis Dis
Acc1 Action On Comp
Acc2 A ction On Fan
Alm-History
Alarm #Events
Condensate 0
Hi Pressure 0
Low Pressure 0
Low Temp 0
Bad Sensor 0
Press right arrow key
one time from
Maintenance Menu
NOTE: This FX10 application implements an alarm history which is reset
only by cycling power. This his tory shows on the Alm -History page. Any
alarm showing 4+ events has occurred more than 4 times.
Alarm lock-outs
Return keys simultaneously for a minimum of 15 seconds, or by
commanding the nviAlarmReset over the BAS network.
Test mode
for a minimum of 15 seconds and releasing. Test mode times out after 30
minutes, and may also be ended by pressing ‘ESC’ and Up Arrow
simultaneously and releasing. Test Mode bypas ses the O n Delay (90 sec)
and Random Start timers for quicker troubleshooting. It also allows cycling
the reversing valve without compressor shutdown.
ECM
SW1 OFF
SW2 OFF
SW3 ON
SW4 OFF
SW5 OFF
SW6 OFF
SW7 ON
SW8 OFF
SW9 OFF
SW10 ON
SW11 OFF
SW12 OFF
No more than three
speeds should be “ON”
at one time
are reset by cyc ling power, by pressing the “ESC” and
is enabled by holdi ng the ‘Esc’ and Down Arrow simultaneously
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Page 35
Unit Startup Notes
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Electrical Disconnect
Optional field installed console disconnect provides a
permanent electrical connection to the main electrical
supply branch. Wiring between the disconnect and the
unit chassis is field supplied and allows the electrical power
source to the chassis to be interrupted for unit servicing.
Non-Fused
Constructed of heavy gauge galvanized steel, the
rocker style disconnect switch provides reliable
electrical control. Wiring pigtails, using 12-gauge wires,
are factory installed to simplify field wiring.
Fused
Similar in construction to the non-fused electrical
disconnect. The fused disconnect is available in
five models with equipment rated fuses to provide
additional circuit protection. The fuses are panel
mounted to allow easy inspection and removal without
removing the cover on the disconnect.
CFD-10 - 10 amp rated fuse
CFD-12 - 12 amp rated fuse
CFD-15 - 15 amp rated fuse
CFD-20 - 20 amp rated fuse
CFD-25 - 25 amp rated fuse
Hydronic Loop Controller for
Boiler/Tower Installations
The hydronic loop controller is a microprocessor based
control panel for control of water loop heat rejector
(tower), heat supplier (boiler), and/or water well pumps
and circulation pumps. Includes audible and visual alarms,
temperature indication, and add-on options of low switches,
remote alarm sensor wells and pump alternator.
35
Page 36
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Unit Startup Checklist/Unit Startup Steps
Before Powering Unit, Check The Following:
• High voltage is correct and matches nameplate.
• Fuses, breakers and wire size correct.
• Low voltage wiring complete.
• Piping completed and water system cleaned and flushed.
• Air is purged from closed loop system.
• Isolation valves are open, water control valves or loop pumps wired.
• Condensate line open and correctly pitched.
• Transformer switched to 208V if applicable.
• Dip switches are set correctly, if applicable.
• Blower rotates freely
• Air filter is clean and in position.
• Service/access panels are in place.
• Return air temperature is between 50-80°F heating and 60-95°F cooling.
• Check air coil cleanliness to ensure optimum performance. Clean as needed according to maintenance guidelines. To
obtain maximum performance the air coil should be cleaned before startup. A 10-percent solution of dishwasher
detergent and water is recommended for both sides of coil, a thorough water rinse should follow.
Startup Steps
Note: Complete the Equipment Start-Up/Commissioning Check Sheet during this procedure. Refer to thermostat
operating instructions and complete the startup procedure.
1. Initiate a control signal to energize the blower motor. Check blower operation.
2. Initiate a control signal to place the unit in the cooling mode. Cooling setpoint must be set below room temperature.
3. Be sure that the compressor and water control valve or loop pump(s) are activated.
4. Verify that the water flow rate is correct by measuring the pressure drop through the heat exchanger using the P/T
plugs and comparing to unit capacity data in specification catalog.
5. Check the temperature of both the supply and discharge water (Refer to Unit Operating Parameters tables).
6. Check for an air temperature drop of 15°F to 25°F across the air coil, depending on the fan speed and entering
water temperature.
7. Adjust the cooling setpoint above the room temperature and verify that the compressor and water valve or loop
pumps deactivate.
8. Initiate a control signal to place the unit in the heating mode. Heating set point must be set above room temperature.
9. Check the temperature of both the supply and discharge water (Refer to Unit Operating Parameters tables).
10. Check for an air temperature rise of 20°F to 35°F across the air coil, depending on the fan speed and entering
water temperature.
11. Adjust the heating setpoint below room temperature and verify that the compressor and water valve or loop
pump deactivate.
12. During all testing, check for excessive vibration, noise or water leaks. Correct or repair as required.
13. Set system to desired normal operating mode and set temperature to maintain desired comfort level.
14. Instruct the owner/operator in the proper operation of the thermostat and system maintenance.
Note: Be certain to fill out and forward all warranty registration papers.
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Page 37
Operating Parameters
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Entering Water
Temp °F
30
50
70
90
110
Entering Water
Temp °F
30
50
70
90
110
NOTES: Cooling performance based on entering air temperatures of 80°F DB, 67°F WB.6/20/11
Heating performance based on entering air temperature of 70°F DB.
Water Flow
gpm/ton
1.5100 - 115170 - 19017 - 2610 - 1418 - 2220 - 30
3.0115 - 125150 - 17020 - 297 - 118 - 1020 - 30
1.5133 - 148225 - 2458 - 117 - 1118 - 2220 - 30
3.0129 - 144185 - 2058 - 116 - 108 - 1020 - 30
1.5139 - 154300 - 3206 - 106 - 1018 - 2218 - 26
3.0137 - 152250 - 2706 - 106 - 108 - 1018 - 26
1.5143 - 158360 - 3806 - 106 - 1018 - 2218 - 26
3.0141 - 156330 - 3506 - 106 - 108 - 1018 - 26
2.3143 - 158360 - 3806 - 106 - 1018 - 2218 - 22
3.0141 - 156440 - 4606 - 106 - 108 - 1018 - 22
Water Flow
gpm/ton
1.573 - 79305 - 3307 - 137 - 117 -1020 - 26
3.079 - 85315 - 3457 - 137 - 113 - 620 - 26
1.5103 - 109330 - 3707 - 13 7 - 118 - 1122 - 32
3.0115 - 130350 - 3807 - 137 - 114 - 722 - 32
1.5145 - 155375 - 4107 - 137 - 1111 - 1428 - 38
3.0155 - 165415 - 43510 - 147 - 117 - 1035 - 45
1.5170 - 185435 - 47011 - 187 - 118 - 1142 - 50
3.0174 - 190 465 - 50011 - 187 - 118 - 1142 - 50
2.3
3.0
Suction Pressure
psig
Suction Pressure
psig
Discharge
Pressure psig
Discharge
Pressure psig
SuperheatSubcooling
SuperheatSubcooling
Cooling
Water Temp Rise °FAir Temp Drop
°F DB
Heating
Water Temp Drop °FAir Temp Rise
°F DB
Operating Limits
Operating Limits
Air Limits
Min. Ambient Air457.2457.2
Rated Ambient Air8026.77021.1
Max. Ambient Air10037.88529.4
Min. Entering Air5010.0404.4
Rated Entering Air db/wb 80.6/66.227/196820.0
Max. Entering Air db/wb110/8343/28.38026.7
Water Limits
Min. Entering Water30-1.120-6.7
Normal Entering Water50-11010-43.330-70-1.1
Max. Entering Water12048.99032.2
CoolingHeating
(°F)(°C)(°F)(°C)
NOTE: Minimum/maximum limits are only for start-up conditions, and
are meant for bringing the space up to occupancy temperature. Units
are not designed to operate at the minimum/maximum conditions on
a regular basis. The operating limits are dependant upon three primary
factors: 1) water temperature, 2) return air temperature, and 3) ambient
temperature. When any of the factors are at the minimum or maximum
levels, the other two factors must be at the normal level for proper and
reliable unit operation.
Under Charged System (Possible Leak)LowLowLowHighLowLowLow
Over Charged SystemHighHighHighNormalHighNormal/LowNormal
Low Air Flow HeatingHighHighHighHigh/NormalLowHighLow
Low Air Flow CoolingLowLowLowLow/NormalHighHighLow
Low Water Flow HeatingLow/Normal Low/NormalLowLowHighLowHigh
Low Water Flow CoolingHighHighHighHighLowLowHigh
High Air Flow HeatingLowLowLowLowHighLowLow
High Air Flow CoolingLowHighNormalHighLowLowNormal
High Water Flow HeatingNormalLowNormalHighNormalNormalLow
High Water Flow CoolingLowLowLowLowHighNormalLow
Low Indoor Air Temperature HeatingLowLowLowNormalHighNormalNormal/High
Low Indoor Air Temperature CoolingLowLowLowNormal/LowHighLowLow
High Indoor Air Temperature HeatingHigh HighHighNormal/High Normal/LowLowNormal
High Indoor Air Temperature CoolingHighHighHighHighLowLowHigh
Restricted TXV (Check Service Advisory)HighLowNormal/LowHighHighLowLow
Insufficient Compressor (Possible Bad Valves)LowHighLowHighNormal/HighLowLow
TXV - Bulb Loss of ChargeLowLowLowHighHighLowLow
Scaled Coaxial Heat Exchanger HeatingLowLowLowNormal/LowHighLowLow
Scaled Coaxial Heat Exchanger CoolingHighHighHighNormal/LowLowLowLow
Restricted Filter DrierCheck temperature difference (delta T) across filter drier.
Head
Pressure
Suction
Pressure
Compressor
Amp Draw
SuperheatSubcooling
Air Temp.
Differential
Water Temp.
Differential
7/ 6/ 1 0
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ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Heat of Extraction/Rejection Data
Modelgpm
1.26.28.110.612.912.111.8
09
12
15
18
Data provided in MBtu/h6/10/13
1.85.06.68.510.813.913.112.411.710.9
2.55.06.99.010.914.013.412.611.811.0
1.57.810.112.415.214.413.9
2.36.38.110.412.616.315.414.613.912.9
3.56.28.610.912.816.315.814.914.013.0
2.010.312.416.419.718.219.9
3.08.810.712.916.719.419.818.220.018.7
4.57.411.313.717.019.519.918.220.218.9
3.012.015.217.623.822.020.7
4.09.512.215.517.923.423.921.920.719.4
5.58.512.616.018.223.523.921.920.919.5
30°F50°F70°F90°F30°F50°F70°F90°F110°F
Heat of Extraction (HE)Heat of Rejection (HR)
Reference Calculations
Heating Calculations:
LWT = EWT -
HE
gpm x 500
Cooling Calculations:
LWT = EWT +
HR
gpm x 500
LAT = EAT +
TH = HC + HWC
HC
cfm x 1.08
LAT(DB) = EAT(DB) -
LC = TC - SC
SC
S/T =
TC
cfm x 1.08
Legend
ABBREVIATIONS AND DEFINITIONS:
cfm = airflow, cubic feet/minute
EWT = entering water temperature, Fahrenheit
gpm = water flow in gallons/minute
WPD = water pressure drop, psi and feet of water
EAT = entering air temperature, Fahrenheit
(dry bulb/wet bulb)
HC = air heating capacity, MBtu/h
TC = total cooling capacity, MBtu/h
SC = sensible cooling capacity, MBtu/h
KW = total power unit input, kilowatts
HR = total heat of rejection, MBtu/h
SC
HE = total heat of extraction, MBtu/h
HWC = hot water generator capacity, MBtu/h
EER = Energy Efficient Ratio
= Btu output/Watt input
COP = Coefficient of Performance
= Btu output/Btu input
LWT = leaving water temperature, °F
LAT = leaving air temperature, °F
TH = total heating capacity, MBtu/h
LC = latent cooling capacity, MBtu/h
S/T = sensible to total cooling ratio
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DEALER:
PHONE #: DATE:
PROBLEM:
MODEL #:
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
SERIAL #:
COOLING CYCLE ANALYSIS
Unit Amp Draw:
°F
AIR
COIL
°F
Line Voltage:
EXPANSION
VALVE
LIQUID LINE
°F
PSIPSI
BRINE IN
Loop:Open
COAX
SOURCE
BRINE OUT
Startup/Troubleshooting Form
PSI
°F
Closed
REVERSING
VALVE
PSI =SAT F
°F°F
SAT °F=
SUCTION
COMPRESSOR
DISCHARGE
°
F
Superheat
Subcooling
°
Heat of Extraction/Rejection = GPM x 500 (485 for water/antifreeze) x ∆T
Note: DO NOT hook up pressure gauges unless there appears to be a performance problem.
HEATING CYCLE ANALYSIS
Unit Amp Draw:
°F
AIR
COIL
°F
Line Voltage:
°
LIQUID LINE
EXPANSION
VALVE
F
PSIPSI
BRINE IN
Loop:Open
COAX
SOURCE
BRINE OUT
PSI
°F
Closed
SAT °F=
SUCTION
COMPRESSOR
REVERSING
VALVE
°F°F
DISCHARGE
°
F
PSI =SAT F
Superheat
Subcooling
°
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ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Preventive Maintenance
Water Coil Maintenance
1.
Keep all air out of the water. An open loop system
should be checked to ensure that the well head is not
allowing air to infiltrate the water line. Lines should
always be airtight.
2. Keep the system under pressure at all times. It is
recommended in open loop systems that the water
control valve be placed in the discharge line to prevent
loss of pressure during off cycles. Closed loop systems
must have positive static pressure.
Note: On open loop systems, if the installation is in an area
with a known high mineral content (125 PPM or greater) in
the water, it is best to establish with the owner a periodic
maintenance schedule so the coil can be checked regularly.
Should periodic coil cleaning be necessary, use standard
coil cleaning procedures which are compatible with either
the cupronickel or copper water lines. Generally, the more
water flowing through the unit the less chance for scaling.
Other Maintenance
Filters
Filters must be clean to obtain maximum performance.
They should be inspected monthly under normal operating
conditions and be replaced when necessary. Units should
never be operated without a filter.
Condensate Drain
In areas where airborne bacteria produce a slime in the
drain pan, it may be necessary to treat chemically to
minimize the problem. The condensate drain can pick up lint
and dirt, especially with dirty filters. Inspect twice a year to
avoid the possibility of overflow.
Blower Motors
Blower motors are equipped with sealed ball bearings and
require no periodic oiling.
Air Coil
The air coil must be cleaned to obtain maximum
performance. Check once a year under normal operating
conditions and, if dirty, brush or vacuum (with a brush
attachment) clean. Care must be taken not to damage the
aluminum fins while cleaning.
CAUTION: Fin edges are sharp.
Replacement Procedures
Obtaining Parts
When ordering service or replacement parts, refer to the
model number and serial number of the unit as stamped
on the serial plate attached to the unit. If replacement
parts are required, mention the date of installation of the
unit and the date of failure, along with an explanation of
the malfunctions and a description of the replacement
parts required.
In-Warranty Material Return
Material may not be returned except by permission of authorized warranty personnel. Contact your local distributor
for warranty return authorization and assistance.