WaterFurnace Envision Low Sill User Manual

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LOW SILL CONSOLE
• R-410A Refrigerant
• 0.75-1.5 Ton Single Speed
Installation Information
Water Piping Connections
Electrical
Startup Procedures
Troubleshooting
Preventive Maintenance
Envision Low Sill Console Installation Manual
IM1012CNA 03/14
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Table of Contents
Model Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
General Installation Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Installation Steps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-14
System Cleaning and Flushing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Open Loop Ground Water Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Water Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Electrical Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Blower Performance Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-25
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26-34
Unit Startup Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Unit Startup Checklist/Unit Startup Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Operating Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Compressor and Thermistor Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Refrigerant Circuit Guideline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Heat of Extraction/Rejection Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Reference Calculations and Legend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Startup/Troubleshooting Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Revision Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
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ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
LC S 09 L 0 1 1 C
4-5 6 7 8 9 10
Vintage
* - Factory Use Only
Non-Standard Option Details
SS – Standard Option
Air Coil/Insulation
Option
5 – AlumiSeal
TM
/Extended Range
8 – No Coating/Standard Range
Sound Kit
A – None B – Blanket
Future Option
N
– None
Future Option
N – None
Water Coil Option
Thermostat Control
Rev.:
N
11
31-2
N B 5 SS
12 13 14
15-16
*
17

Model Nomenclature

Model
LC – Envision Series Low-Sill Console
Cabinet Configuration
C – Chassis Only
W – Chassis with Cabinet S – Chassis Slope Top
Unit Capacity
09, 12, 15, 18
Piping Option
L – Left R - Right
Voltage
0 – 208-230/60/1 2 – 265/60/1 9 – 115/60/1 (09 & 12)
Unit Control
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.
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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.
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ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Dimensional Data - Flat Top Cabinet

LCW09-18
Right Hand Cabinet
TOP
D E
Left Hand Cabinet
F
Flat Top
Configuration
09-12
15-18
A
FRONT
Right return cabinet shown in dimensional views
Overall Cabinet
ABCDE FG
Width Depth Height
in. 45.1 10.8 22.5 9.2 35.0 6.1 2.3
cm. 114.6 27.4 57.2 23.4 88.9 15.6 5.8
in. 50.0 12.8 22.5 9.2 35.0 6.1 3.3
cm. 127.0 32.4 57.2 23.4 88.9 15.6 8.3
Grille
Lid
Grille
Length
Grille
Grille
Width
B
G
C
SIDE
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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
D E
A
C
H
FRONT
Right return cabinet shown in dimensional views
Overall Cabinet
ABCDEFGH
Width Depth Height
in. 45.1 10.8 24.0 9.2 35.0 6.1 2.0 22.4
cm. 114.6 27.4 61.0 23.4 88.9 15.6 5.1 56.9
in. 50.0 12.8 24.0 9.2 35.0 6.1 2.0 22.5
cm. 127.0 32.4 61.0 23.4 88.9 15.6 5.1 57.2
Grille
Lid
Grille
Length
Grille
Grille
Width
80°
B
G
SIDE
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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 PANEL COMPRESSOR
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
33.6 9.1
1.5
1.5
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ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Dimensional Data - Controls Detail: Flat Top Chassis

Left Return Right 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
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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/Speeds PSC 2 Speeds N/A
Blower Motor - hp [W] PSC 1/16 [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]
Air Coil Number of Rows 3 3 4 4
Filter Standard - Throwaway, in [mm]
Weight - Packaged, lb [kg] 200 [91] 205 [93] 215 [98] 220 [100]
[m2] 1.2 [0.114] 1.2 [0.114] 1.7 [0.16] 1.7 [0.16]
3-Spd
ECM
3-Spd
ECM
3-Spd
ECM
09 12 15 18
N/A 3 Speeds
N/A 1/4 [186] 1/4 [186]
N/A
5.75 x 5.50
[146 x 140]
8 x 22
[203 x 559]
23 x 9.6
[584 x 244]
5.75 x 5.50 [146 x 140]
[203 x 559]
[584 x 244]
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ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Installation Steps

Step 1: Unpack Equipment and Inspect for Damage
Step 2: Determine Equipment Location
• 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
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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
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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.
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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
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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.
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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.
Material Copper 90/10 Cupronickel 316 Stainless Steel
pH Acidity/Alkalinity
Scaling
Corrosion
Iron Fouling
(Biological Growth)
Erosion
NOTES: Grains = ppm divided by 17
mg/L is equivalent to ppm
Calcium and
Magnesium Carbonate
Hydrogen Sulfide
Chlorine Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm
Chlorides Less than 20 ppm Less than 125 ppm Less than 300 ppm
Carbon Dioxide Less than 50 ppm 10 - 50 ppm 10 - 50 ppm
Ammonia Less than 2 ppm Less than 2 ppm Less than 20 ppm
Ammonia Chloride Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm
Ammonia Nitrate Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm
Ammonia Hydroxide Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm
Ammonia Sulfate Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm
Total Dissolved Solids (TDS) Less than 1000 ppm 1000 - 1500 ppm 1000 - 1500 ppm
LSI Index +0.5 to -0.5 +0.5 to -0.5 +0.5 to -0.5
Iron, FE
Bacterial Iron Potential
Iron Oxide
Suspended Solids
Threshold Velocity
(Fresh Water)
Less than 0.5 ppm (rotten egg
Sulfates Less than 125 ppm Less than 125 ppm Less 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 - 9 7 - 9 7 - 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 ppm Less 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 only 6/10/13
Rated
Voltage
115/60/1 104/127 12.5 8.0 50.0 1.5 9.5 11.5 15
208-230/60/1 187/253 6.4 4.1 21.0 0.6 4.7 5.7 10/15
265/60/1 238/292 6.7 4.3 22.0 0.6 4.9 6.0 10/15
115/60/1 104/127 14.8 9.5 50.0 1.5 11.0 13.4 20
208-230/60/1 187/253 7.7 4.9 25.0 0.6 5.5 6.7 10/15
265/60/1 238/292 7.0 4.5 22.0 0.6 5.1 6.2 10/15
208-230/60/1 187/253 9.2 5.9 29.0 2.6 8.5 10.0 15
265/60/1 238/292 7.8 5.0 28.0 2.5 7.5 8.7 10/15
208-230/60/1 187/253 10.4 6.7 33.5 2.6 9.3 11.0 15
265/60/1 238/292 8.7 5.6 28.0 2.5 8.1 9.5 15
Voltage
Min/Max
MCC RLA LRA
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 Speed High Speed
260 300
300 340
375 450
450 600
CFM
18
Page 19

Wiring Schematics

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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
Red Blk
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
Quick connect terminal Wire nut
CC - Compressor Contactor DT - Damper Terminal Block FS - Freeze Sensin
h Pressure Switch
HP - Hi
Device
LP - Low Pressure Switch PB - Power Block RB - Blower Rela RSR – Remote Start/Stop Rela RV - Reversing Valve Coil ST - Enterin
Air Temperature Sensor
L1
Wiring lu
Ground
Relay Contacts ­N.O., N.C.
HP
Switch - Hi
LP
Switch - Low Pressure Rela
Capacitor Thermistor
T
Temperature Switch
coil
h Pressure
Notes:
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
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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
&ĂŶDŽĚĞ^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
ůĞĐƚƌŽŶŝĐd,ZDK^dd
,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
Red Blk
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.
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)
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
High Low
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
Fan Fan 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
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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
ůĞĐƚƌŽŶŝĐd,ZDK^dd
,ĞĂƚ
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
SHUT
DOWN
Yellow
Red (19
Not Used
Black (27
NOTE 1
Red 208V
Blue 230V/265V
Transformer
Yellow Black/White
Black
31
RB
Fan Fan 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
Red Blk
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
High Low
LC15 Orange Brown LC18 Brown/White Orange
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
High Low
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
LC15 Orange Brow n LC18 Brown/White Orange
High Lo w
Page 25
Wiring Schematics cont.
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)
A
(
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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
30 seconds 30 seconds 2 minutes (for first fault only, 0 sec after)
2 minutes (for first fault only, 0 sec after) 5 minutes
Test 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 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
LED Normal 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
loop<=15°F, well<=30°F)
Diagnostic Modes
SW1-4 Off, SW2 Off
Not Used Not Used Not Used
SW2 in the Off position
Inputs
Y G O
ES
Outputs
SW1-4 Off, SW2 On
Compressor
Not Used Not Used Not Used
SW2 in the On position
Blower
O
ES
Versatec Logic Board Physical Layout
Blower Blower COM
CC
Blower Relay
CCG
C C
R R
P3
P1
RCYOGLOES
Microprocessor
Logic Control
17P529A01
CC Relay
SW1
Logic Board DIP Switch Settings
Switch OFF ON
Test Mode - Selected timings sped up to
SW1 - 1
facilitate troubleshooting Loop - Closed loop freeze sensing
SW1 - 2
setting (15°F) Commercial - Enables NS features when
SW1 - 3
TA32U02 thermostat is used IO Display* - Enables Input/Output display
SW1 - 4
on external LED board* Split Mode – Dual-Speed-Compressor
SW1 - 5
and with No blower OFF* - Normal or Input display mode
SW2
activated
* Refer to LED Display Mode table for position of SW1-4 and SW2
Normal Mode - Standard timin Well - Open loop freeze sensing setting
(30°F) Normal - Standard thermostat operation
Normal* - Unit status display Normal - Single-Speed Compressor
with blower ON* - Current fault or Output display
mode activated
6
1
7
2
P2
8
3
9
4
10
5
s
Operational Logic Table
Mode
Blower G ON
25
Inputs Blower Comp RV
Ht
Y,O
Y
ON ON
ON ON
OFF
OFF
ON
OFF
Page 26
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Controls

Control General Description Application Display/Interface Protocol Thermostat Options
CCM Control The CCM (Compressor control
Versatec Control The Versatec Control is a
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
None Unit Mounted Digital
None Unit Mounted Digital
Dial Thermostat
Remote Mounted Standard Thermostat
Dial Thermostat
Remote Mounted Standard Thermostat
FX10 The FX10 microprocessor control
FX10 w/ N2 FX10 Control functions as both
FX10 w/ LonWorks FX10 Control functions as both
FX10 w/ BACnet FX10 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.
Standalone Remote Mounted
Johnson Controls N2 network
LonWorks Remote 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.
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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.
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ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Controls cont.
Control Tables for Optional Versatec Microprocessor
Logic Board DIP Switch Settings
Switch OFF ON
SW1 - 1
SW1 - 2
SW1 - 3
SW1 - 4
SW1 - 5
Normal Control Timing Operational 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 troubleshooting Normal - Standard timings
Loop - Closed loop freeze detection setting (15°F) Well - Open loop freeze detection setting (30°F)
Commercial - Enables NS features when TA32U02 thermostat is used Normal - Standard thermostat operation
IO Display* - Enables Input/Output display on external LED board Normal* - Unit status display
Configures board for 2-speed compressor without blower Configures 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
Mode Inputs Blower Comp RV
Htg
Clg
Blower
Y ON ON OFF
Y,OONONON
G ON OFF OFF
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 overflow Y Compressor
FD thermistor (loop <15°F, well <30°F) G Blower
High pressure >600 psi O O
Low pressure <40 psi ES ES
Not used Not Used Not Used
Not used Not Used Not Used
Not used Not used Not used
SW2 in the On position Off position On 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
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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
Low pressure fault ...............................................................30 seconds
Freeze detection fault ...........................................................30 seconds
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ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Controls cont.
Condensate overflow fault ...............................................30 seconds
Low pressure fault bypass ................................................... 2 minutes
Freeze detection fault bypass ............................................ 2 minutes
Optional FX10 Microprocessor and BAS Interface
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
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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 Name Input Output Name Output
Zone Temp 1 AI 1 Fan Enable BO1 Relative Humidity Input AI 2 Comp – Low Capacity BO2 Condensate Level AI 3 Reversing Valve BO3 Universal Temp Input AI 4 Comp – Full Capacity BO4 Water Coil Low Temperature Limit AI 5 Network Output/EH Output BO5 Warm/Cool Adjust and Temp Occ AI 6 Alarm BO6
Accessory 1 Output BO7 Occupied BI 1 Accessory 2 Output BO8 Emergency Shutdown BI 2 Network Controlled Output B09 Stage 1 Low Pressure BI 3 Network Viewable Input 1 BI 4 ECM2 Fan PWM1 Water Coil Low Temp Limit Set Point BI 5 Network Controlled Output PWM2 Network Viewable Input 2 BI 6 Thermostat Y1 BI 7 Thermostat Y2 BI 8 Thermostat O BI 9 Thermostat G B10 Stage 1 High Pressure BI11 Compressor Proving BI12
XP10 Expansion Card Input Name Input Output Name Output
Unused AI 1 Unused BO 1 Unused AI 2 Unused BO 2 Unused AI 3 Unused BO 3 Unused AI 4 Unused BO 4
Control Accessories
Zone Sensors
• TAXXJ02 Room Command Module
• TAXXA04 LCD Room Command Module
• A99 Sensor
MUI (LCD User interface) for diagnostics and commissioning.
• MUIK3 - Panel Mount, Portable
• MUIK4 - Wall Mount
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Controls cont.
FX10 User Interface (MUI) Physical Layout
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Power LED
Alarm LED
Up Arrow Right 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 Arrow Down 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
Outputs Settings
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
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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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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.
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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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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
1.5 100 - 115 170 - 190 17 - 26 10 - 14 18 - 22 20 - 30
3.0 115 - 125 150 - 170 20 - 29 7 - 11 8 - 10 20 - 30
1.5 133 - 148 225 - 245 8 - 11 7 - 11 18 - 22 20 - 30
3.0 129 - 144 185 - 205 8 - 11 6 - 10 8 - 10 20 - 30
1.5 139 - 154 300 - 320 6 - 10 6 - 10 18 - 22 18 - 26
3.0 137 - 152 250 - 270 6 - 10 6 - 10 8 - 10 18 - 26
1.5 143 - 158 360 - 380 6 - 10 6 - 10 18 - 22 18 - 26
3.0 141 - 156 330 - 350 6 - 10 6 - 10 8 - 10 18 - 26
2.3 143 - 158 360 - 380 6 - 10 6 - 10 18 - 22 18 - 22
3.0 141 - 156 440 - 460 6 - 10 6 - 10 8 - 10 18 - 22
Water Flow
gpm/ton
1.5 73 - 79 305 - 330 7 - 13 7 - 11 7 -10 20 - 26
3.0 79 - 85 315 - 345 7 - 13 7 - 11 3 - 6 20 - 26
1.5 103 - 109 330 - 370 7 - 13 7 - 11 8 - 11 22 - 32
3.0 115 - 130 350 - 380 7 - 13 7 - 11 4 - 7 22 - 32
1.5 145 - 155 375 - 410 7 - 13 7 - 11 11 - 14 28 - 38
3.0 155 - 165 415 - 435 10 - 14 7 - 11 7 - 10 35 - 45
1.5 170 - 185 435 - 470 11 - 18 7 - 11 8 - 11 42 - 50
3.0 174 - 190 465 - 500 11 - 18 7 - 11 8 - 11 42 - 50
2.3
3.0
Suction Pressure
psig
Suction Pressure
psig
Discharge
Pressure psig
Discharge
Pressure psig
Superheat Subcooling
Superheat Subcooling
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 Air 45 7.2 45 7.2 Rated Ambient Air 80 26.7 70 21.1 Max. Ambient Air 100 37.8 85 29.4 Min. Entering Air 50 10.0 40 4.4 Rated Entering Air db/wb 80.6/66.2 27/19 68 20.0 Max. Entering Air db/wb 110/83 43/28.3 80 26.7
Water Limits
Min. Entering Water 30 -1.1 20 -6.7 Normal Entering Water 50-110 10-43.3 30-70 -1.1 Max. Entering Water 120 48.9 90 32.2
Cooling Heating
(°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.
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ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Pressure Drop

Model GPM
1.2 1.0 0.9 0.8 0.7 0.6
09
12
15
18
1.8 2.3 2.2 2.0 1.9 1.8
2.5 3.8 3.7 3.5 3.3 3.1
1.5 0.9 0.8 0.7 0.6 0.5
2.3 1.7 1.5 1.4 1.3 1.1
3.5 3.0 2.7 2.5 2.4 2.2
2.0 1.7 1.6 1.5 1.4 1.3
3.0 3.3 3.2 3.0 2.9 2.8
4.5 5.7 5.5 5.3 5.1 4.9
3.0 1.7 1.6 1.5 1.4 1.3
4.0 4.1 4.0 3.9 3.7 3.6
5.5 7.9 7.6 7.4 7.2 6.9
30°F 50°F 70°F 90°F 110°F
Pressure Drop (psi)
6/10/13

Compressor and Thermistor Resistance

Compressor Resistance
Model
09
12 15 18
115/60/1 208-230/60/1 265/60/1
Run Start Run Start Run Start
0.77 - 0.89 1.79 - 2.05 3.65 - 4.19 3.75 - 4.31 3.73 - 4.27 4.45 - 5.13
0.77 - 0.89 1.79 - 2.05 3.35 - 3.85 2.80 - 3.22 3.73 - 4.27 4.45 - 5.13
2.74 - 3.16 2.60 - 3.00 3.03 - 3.49 2.39 - 2.75
2.24 - 2.58 2.84 - 3.26 3.03 - 3.49 2.39 - 2.75 6/10/13
Thermistor Resistance
Thermistor
Temperature (°F)
5 75757-70117 746-770
14 57392-53234 775-803 23 43865-40771 808-836 32 33809-31487 841-869
41 26269-24513 875-903 50 20570-19230 910-938 59 16226-15196 946-974 68 12889-12093 981-1013 77 10310-9688 1019-1051 86 8300-7812 1058-1090 95 6723-6337 1097-1129
104 5480-5172 1137-1169
113 4490-4246 1179-1211
122 3700-3504 1221-1253
131 3067-2907 1261-1297
140 2554-2424 1305-1341 149 2149-2019 1350-1386
Microprocessor
Resistance (Ohms)
FX10
Resistance (Ohms)
7/ 6/ 1 0
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Refrigerant Circuit Guideline

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Symptom
Under Charged System (Possible Leak) Low Low Low High Low Low Low Over Charged System High High High Normal High Normal/Low Normal Low Air Flow Heating High High High High/Normal Low High Low Low Air Flow Cooling Low Low Low Low/Normal High High Low Low Water Flow Heating Low/Normal Low/Normal Low Low High Low High Low Water Flow Cooling High High High High Low Low High High Air Flow Heating Low Low Low Low High Low Low High Air Flow Cooling Low High Normal High Low Low Normal High Water Flow Heating Normal Low Normal High Normal Normal Low High Water Flow Cooling Low Low Low Low High Normal Low Low Indoor Air Temperature Heating Low Low Low Normal High Normal Normal/High Low Indoor Air Temperature Cooling Low Low Low Normal/Low High Low Low High Indoor Air Temperature Heating High High High Normal/High Normal/Low Low Normal High Indoor Air Temperature Cooling High High High High Low Low High Restricted TXV (Check Service Advisory) High Low Normal/Low High High Low Low Insufficient Compressor (Possible Bad Valves) Low High Low High Normal/High Low Low TXV - Bulb Loss of Charge Low Low Low High High Low Low Scaled Coaxial Heat Exchanger Heating Low Low Low Normal/Low High Low Low Scaled Coaxial Heat Exchanger Cooling High High High Normal/Low Low Low Low Restricted Filter Drier Check temperature difference (delta T) across filter drier.
Head
Pressure
Suction
Pressure
Compressor
Amp Draw
Superheat Subcooling
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

Model gpm
1.2 6.2 8.1 10.6 12.9 12.1 11.8
09
12
15
18
Data provided in MBtu/h 6/10/13
1.8 5.0 6.6 8.5 10.8 13.9 13.1 12.4 11.7 10.9
2.5 5.0 6.9 9.0 10.9 14.0 13.4 12.6 11.8 11.0
1.5 7.8 10.1 12.4 15.2 14.4 13.9
2.3 6.3 8.1 10.4 12.6 16.3 15.4 14.6 13.9 12.9
3.5 6.2 8.6 10.9 12.8 16.3 15.8 14.9 14.0 13.0
2.0 10.3 12.4 16.4 19.7 18.2 19.9
3.0 8.8 10.7 12.9 16.7 19.4 19.8 18.2 20.0 18.7
4.5 7.4 11.3 13.7 17.0 19.5 19.9 18.2 20.2 18.9
3.0 12.0 15.2 17.6 23.8 22.0 20.7
4.0 9.5 12.2 15.5 17.9 23.4 23.9 21.9 20.7 19.4
5.5 8.5 12.6 16.0 18.2 23.5 23.9 21.9 20.9 19.5
30°F 50°F 70°F 90°F 30°F 50°F 70°F 90°F 110°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
PSI PSI
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
PSI PSI
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.
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Service Parts

Compressor 115/60/1 34P590-09 34P591-09 N/A N/A
Compressor 208-230/60/1 34P590-01 34P591-01 34P592-01 34P593-01
Compressor 265/60/1 34P590-02 34P591-02 34P592-02 34P593-02
Run Capacitor 115/60/1 16P002D36 16P002D36 N/A N/A
Run Capacitor 208-230/60/1 16P002D17 16P002D18 16P002D19 16P002D19
Compressor
Run Capacitor 265/60/1 16P002D27 16P002D27 16P002D30 16P002D30
Sound Jacket 92P504A01
PSC Motor 115/60/1 14P506-03 N/A
PSC Motor 208-230/60/1 14P506-02 N/A
PSC Motor 265/60/1 14P506-02 N/A
Blower Housing 53P518-02 N/A
Blower Capacitor 208-230/60/1 16P002D10 N/A
PSC Motor & Blower
Blower Capacitor 265/60/1 16P002D37 N/A
ECM Motor 115/208-230/265/60/1 N/A 14P550-01
ECM
ECM Motor Module 115/208-230/265/60/1 N/A 17P577-01
Blower
Motor &
Blower Housing N/A 53P514B01
Air Coil 61P714-41 61P724-41
Coax 62P558-03 62P559-03 62P560-01
TXV 33P605-09 33P605-08
Reversing Valve 33P502-05
Components
Refrigeration
Filter Drier 36P500B01
CCM Board 17P535-03
Versatec Controller 17P529A01
Controls
Contactor 13P004A03
ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Low Sill Consoles
09 12 15 18
Transformer 208-230/60/1 15P514-01
Transformer 265/60/1 15P515-01
Transformer
High Pressure Switch 35P506B02
Low Pressure Switch 35P506B01
Safeties
Sensors &
Part numbers subject to change 12/13/2013
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ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Notes
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ENVISION LOW SILL CONSOLE INSTALLATION MANUAL
Revision Guide
Pages: Description: Date: By:
All Updated with All-Aluminum Air Coils 03 Mar 2014 DS
All Added 15 & 18 Models 09 Oct 2013 DS
45 Added Revision Table 09 Oct 2013 DS
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Manufactured by WaterFurnace International, Inc. 9000 Conservation Way Fort Wayne, IN 46809 www.waterfurnace.com
Product: Envision Series Low Sill Console Type: Geothermal/Water Source Heat Pump Size: 0.75-1.0 Ton
IM1010CNA 03/14
© 2014 WaterFurnace International, Inc., 9000 Conservation Way, Fort Wayne, IN 46809-9794. WaterFurnace has a policy of continual product research and development and
reserves the right to change design and specifi cations without notice.
Document: Installation Manual
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