WaterFurnace Envision Low Sill User Manual

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Page 1

LOW SILL CONSOLE

Geothermal/Water Source Heat Pump

• 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

Page 2

Page 3

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

Page 4

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

/Extended Range

8 – No Coating/Standard Range

Sound Kit

A – None B – Blanket

Future Option

– None

Future Option

N – None

Water Coil Option

Thermostat Control

Rev.:

31-2

N B 5 SS

12 13 14

15-16

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.

Page 5

General Installation Information

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Safety Considerations

WARNING: Before performing service or maintenance operations on a system, turn off main power switches to the indoor unit. If applicable, turn off the accessory heater power switch. Electrical shock could cause personal injury.

Installing and servicing heating and air conditioning equipment can be hazardous due to system pressure and electrical components. Only trained and qualified service personnel should install, repair or service heating and air conditioning equipment. Untrained personnel can perform the basic maintenance functions of cleaning coils and cleaning and replacing filters. All other operations should be performed by trained service personnel. When working on heating and air conditioning equipment, observe precautions in the literature, tags and labels attached to the unit and other safety precautions that may apply.

Follow all safety codes. Wear safety glasses and work gloves. Use a quenching cloth for brazing operations and have a fire extinguisher available.

Moving and Storage

Move units in the normal “up” orientation. Do not stack units. When the equipment is received, all items should be carefully checked against the bill of lading to be sure all crates and cartons have been received. Examine units for shipping damage, removing the units from the packaging if necessary. Units in question should also be internally inspected. If any damage is noted, the carrier should make the proper notation on the delivery receipt, acknowledging the damage.

Water Piping

The proper water flow must be provided to each unit whenever the unit operates. To assure proper flow, use pressure/temperature ports to determine the flow rate. These ports should be located at the supply and return water connections on the unit. The proper flow rate cannot be accurately set without measuring the water pressure drop through the refrigerant-to-water heat exchanger.

All source water connections on commercial units are fittings that accept a male pipe thread (MPT). Insert the connectors by hand, then tighten the fitting with a wrench to provide a leakproof joint. When connecting to an open loop (groundwater) system, thread any copper MPT fitting into the connector and tighten in the same manner as described above.

Refrigerant Systems

To maintain sealed circuit integrity, do not install service gauges unless unit operation appears abnormal. Compare the change in temperature on the air side as well as the water side to the Unit Operating Parameters tables. If the unit’s performance is not within the ranges listed, and the airflow and water flow are known to be correct, gauges should then be installed and superheat and subcooling numbers calculated. If superheat and subcooling are outside recommended ranges, an adjustment to the refrigerant charge may be necessary.

Page 6

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Dimensional Data - Flat Top Cabinet

LCW09-18

Right Hand Cabinet

TOP

D E

Left Hand Cabinet

Flat Top

Configuration

09-12

15-18

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

Width

SIDE

Page 7

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Dimensional Data - Slope Top Cabinet

LCS09-18

TOP

Left Hand CabinetRight Hand Cabinet

Slope Top

Configuration

09-12

15-18

D E

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

Width

80°

SIDE

Page 8

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Dimensional Data - Chassis

LCC09-12

WATER OUT

1/2 in. FPT

WATER IN

1/2 in. FPT

LCC15-18

21.7

17.6

9.5

10.2

2.1

0.8

2.1

8.6

CONDENSATE DRAIN CONNECTION

2.1

1.5

2.1

25.4 AIR FLOW

26.3

BLOWER ACCESS 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

Page 9

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

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)

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

Page 10

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Physical Data

8 x 22

23 x 9.6

Console

[203 x 762]

[813 x 244]

6.0 x 6.5

[152 x 165]

8 x 30

32 x 9.6

6.0 x 6.5

[152 x 165]

N/A

8 x 30

[203 x 762]

32 x 9.6

[813 x 244]

12/13/13

Model

Compressor (1 each) Rotary

Factory Charge R-410A, oz [kg] 27 [0.77] 27 [0.77] 36 [1.02] 34 [1.0]

Blower Motor & Blower

Blower Motor Type/Speeds

Blower Motor - hp [W]

Blower Wheel Size (Dia x W), in. [mm]

Blower Motor Type/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]

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]

Page 11

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

Page 12

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Installation Steps cont.

Step 4: Provide Water and Condensate Drain Connections

• A two-pipe reverse return piping configuration is recommended as it equalizes the piping circuit lengths and delivers even water flow to each unit. A direct return piping configuration may be used, but it may be difficult to achieve and maintain proper water flow to the units.

• An air vent must be installed in the water distribution system.

• The supply and return water piping should be run through the wall or floor penetration and terminate with a ball valve. The piping material used must comply with all local codes.

• Refer to: System Cleaning and Flushing procedures.

Pipe Locations

Figure 2

Console Cabinet

Console Chassis

Water Connections

Fused Electrical

Disconnect (Optional

Wall Mounted)

24V Accessory

Target Area for

Wall Penetration

5 in. x 8 in. Area Approx.

1/2 in. from Edge of

Chassis 3 in. from Floor

Cabinet Extends

to this Point

5 in. x 8 in. Area Approx.

1/2 in. from Edge of

Chassis 1 in. from Front

Edge of Cabinet

Electrical

Junction

Box

Condensate Drain Location

Target Area for Floor Penetration

Page 13

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Installation Steps cont.

Step 5: Provide Line Voltage Wiring

• Check unit data plate located on control side of chassis for ampacity and fuse size.

• Remove electrical knockouts from chassis backplate.

• Run line voltage wiring through knockout and secure wiring to backplate or disconnect.

Step 6: Chassis Installation

• Level and secure backplate to wall.

• Position the chassis against back plate. Drive (2) screws through holes in lip of backplate into top flange of chassis.

Step 7: Final Electrical Connection

• Install flexible electrical conduit between the backplate or electrical disconnect and the unit mounted junction box.

• Make final wiring connections in disconnect and junction box, taking care to replace all covers when done. Wiring must conform to NEC and/or all local codes. Refer to Electrical Data.

NOTE: It is necessary to make final wiring connections prior to securing unit chassis to back plate on right-hand piping models with electrical disconnect.

Step 8: Final Water Connection

• For ease of installation and sound attenuation, high pressure (recommended) flexible hoses with a swivel fitting should be provided. Apply Teflon® tape or sealant compound to threaded hose fittings.

• Combination shut-off/balancing valves should be installed on both the supply and return water lines of the unit.

• Flow control valves should be installed on the water discharge line.

• It is recommended that P/T ports be installed on the supply and return water lines.

Step 9: Set Unit Controls

• Locate the “continuous fan/cycle fan” switch within the electrical compartment of the chassis and set to desired position. (Remote wall thermostat units do not use this optional switch.)

• Optional Control SettingsRemote Thermostat - Run low voltage wiring from unit to the desired thermostat location. Mount and wire thermostat according to manufacturer’s recommendations.

Step 10: Secure the Cabinet Cover

• Position and lower cabinet over unit chassis. Apply pressure to the front of the cabinet to ensure that the back lip of the

cabinet hooks over the tabs provided on the backplate.

• Secure cabinet to chassis with mounting screws provided.

Step 11: Perform Final Unit Check

• Measure the pressure drop across the water coil and monitor water or air temperatures in both heating and cooling

modes. The measured values should fall within the acceptable ranges shown in the Startup Performance table.

Page 14

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Installation Steps cont.

Field Converting Console

Chassis is normally configured with controls on right end and piping on left end (see Figure 3 top view). In this position panel number 1 would be positioned against wall or back plate. Unit may also be turned 180° against wall or back plate. In this position controls will be on left end and piping on right end panel number 2 would be positioned against wall or back plate. Chassis must be enclosed with an approved cabinet enclosure.

1. Remove 4 screws from front kick panel on cabinet.

2. Remove cabinet from chassis by lifting and sliding cabinet straight up.

3. Remove grille assembly from cabinet by removing 4 screws from brackets located on the bottom of the grille and door assemblies.

4. Replace grille/door assemblies into cabinet repositioning pieces 1, 2, and 3 into the locations directly opposite the original positions. Secure by replacing mounting brackets. (Note: Be sure that louvers on the grille assembly are facing the proper direction when replacing the grille section.)

5. Replace grille/frame assembly into cabinet, and secure by replacing mounting brackets.

6. Replace cabinet by sliding it down over the top of the chassis.

7. Remove tab on leg that extends into return air opening. When the grille side of the cabinet is flat against chassis there will be 4 holes that line up in the leg section. Only use 1 hole for alignment for opposite side of grille. (Note: The tab can be removed by twisting back and forth until it breaks off.)

8. Remove plastic strip from tab and replace on rough edge that the tab was removed from.

9. Replace screws in font kick panel to secure cabinet to chassis.

10. Mount filter bracket in designated opening area. (Note: The filter bracket will only fit in one direction if cabinet is installed properly.)

LEFT RETURN

RIGHT RETURN

Page 15

System Cleaning and Flushing

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Cleaning and Flushing

Prior to start up of any heat pump, the water circulating system must be cleaned and flushed of all dirt and debris.

If the system is equipped with water shutoff valves, the supply and return runouts must be connected together at each unit location (This will prevent the introduction of dirt into the unit, see Figure 7). The system should be filled at the water make-up connection with all air vents open. After filling, vents should be closed.

The contractor should start the main circulator with the pressure reducing valve makeup open. Vents should be checked in sequence to bleed off any trapped air and to verify circulation through all components of the system.

As water circulates through the system, the contractor should check and repair any leaks found in the piping system. Drain(s) at the lowest point(s) in the system should be opened for initial flush and blowdown, making sure water fill valves are set at the same rate. Check the pressure gauge at the pump suction and manually adjust the make-up water valve to hold the same positive pressure both before and after opening the drain valves. Flushing should continue for at least two hours, or longer if required, until drain water is clean and clear.

The supplemental heater and/or circulator pump, if used, should be shut off. All drains and vents should be opened to completely drain the system. Short-circuited supply and return runouts should now be connected to the unit supply and return connections.

Figure 7: Flushing with Water Shutoff Valve Equipped Systems

Return Runout

Supply Runout

Mains

Rubber Hose

Runouts Initially Connected Together

Refill the system with clean water. Test the system water for acidity and treat as required to leave the water slightly alkaline (pH 7.5 to 8.5). The specified percentage of antifreeze may also be added at this time. Use commercial grade antifreeze designed for HVAC systems only. Environol™ brand antifreeze is recommended..

Once the system has been filled with clean water and antifreeze (if used), precautions should be taken to protect the system from dirty water conditions. Dirty water will result in system-wide degradation of performance, and solids may clog valves, strainers, flow regulators, etc. Additionally, the heat exchanger may become clogged which reduces compressor service life and can cause premature unit failure.

In boiler/tower application, set the loop control panel set points to desired temperatures. Supply power to all motors and start the circulating pumps. After full flow has been established through all components including the heat rejector (regardless of season), air vented and loop temperatures stabilized, each of the units will be ready for check, test and start up and for air and water balancing.

Ground Source Loop System Checkout

Once piping is completed between the unit pumping system and ground loop, final purging and charging of the loop is needed. A high pressure pump is needed to achieve adequate flow velocity in the loop to purge air and dirt particles from the loop itself. Antifreeze solution is used in most areas to prevent freezing. Flush the system adequately to remove as much air as possible; then pressurize the loop to a static pressure of 40-50 psi (summer) or 50-75 psi (winter). This is normally adequate for good system operation. Loop static pressure may decrease soon after initial installation, due to pipe expansion and loop temperature change. Running the unit for at least 30 minutes after the system has been completely purged of air will allow for the “break-in” period. It may be necessary to adjust static loop pressure (by adding water) after the unit has run for the first time. Loop static pressure will also fluctuate with the seasons. Pressures will be higher in the winter months than during the cooling season. This fluctuation is normal and should be considered when charging the system initially.

Ensure the pump provides adequate flow through the unit by checking pressure drop across the heat exchanger. Usually 2.25-3.0 gpm of flow per ton of cooling capacity is recommended in earth loop applications.

Page 16

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Open Loop Ground Water Systems

Always maintain water pressure in the heat exchanger by placing water control valves at the outlet of the unit to prevent mineral precipitation. Use a closed, bladder-type expansion tank to minimize mineral formation due to air exposure. Ensure proper water flow through the unit by checking pressure drop across the heat exchanger and comparing it to the figures in unit capacity data tables in the specification catalog. 1.5-2 gpm of flow per ton of cooling capacity is recommended in open loop applications.

Discharge water from the unit is not contaminated in any manner and can be disposed of in various ways, depending on local codes, i.e. recharge well, storm sewer, drain field, adjacent stream or pond, etc. Most local codes forbid the use of sanitary sewer for disposal. Consult your local building and zoning departments to assure compliance in your area.

Note: For open loop/groundwater systems or systems that do not contain an antifreeze solution, set SW1-Switch #2 to the “WELL” position mended to eliminate water hammer.

Water Quality

In ground water situations where scaling could be heavy or where biological growth such as iron bacteria will be present, a closed loop system is recommended. The heat exchanger coils in ground water systems may, over a period of time, lose heat exchange capabilities due to a buildup of mineral deposits inside. These can be cleaned, but only by a qualified service mechanic, as special solutions and pumping equipment are required. Desuperheater coils can likewise become scaled and possibly plugged. In areas with extremely hard water, the owner should be informed that the heat exchanger may require occasional flushing.

(Refer to the Dip Switch Field Selection table). Slow opening/closing solenoid valves (type VM) are recom-

Units with cupronickel heat exchangers are recommended for open loop applications due to the increased resistance to build-up and corrosion, along with reduced wear caused by acid cleaning.

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

+ (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

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

Unit

Red

Black

Yellow

Orange

Green

Brown

Blue

Page 18

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Electrical Data

Model

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

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

Page 19

Wiring Schematics

)

CCM with Remote Thermostat - 208-230-265/60/1

PSC

Blower

CRY1OGLS

Terminal Board

X2 X1 W1

Grn

Red (30

Motor

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

Orange (21

PB-2

Yellow

Orange

Green

Yellow (10

Black (22

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Compressor

Blue

Handi - Box

24V

Black/White

Ground

R C

Lug

24 V Supply for Start/

TEST

COMPRESSOR

CONTROL MODULE

NOTE 3

Stop Signal

Violet (4)

Red

Brown Black

Tan (33)

Violet (5

Red Blk

NOTE 2

Green (00

Black (31)

Red (32

Black

Blue 230V 265V

NOTE 1

208V

Transformer

NOTE 3

RSR

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

RSR

Unit

Pink

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

Wiring lu

Ground

Relay Contacts N.O., N.C.

Switch - Hi

Switch - Low Pressure Rela

Capacitor Thermistor

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

Page 20

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

)

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

PUT

Black (25

DŽĚĞ^ǁŝƚĐŚ

ƵƚŽ

Fan

Black

Red

Black (12

Red (11

Orange

Red

Red (15

Red (16

Red (19

Z

Red (17

Yellow (13

Orange (14

Blue (T6

^ŚƵƚĚŽǁŶ

Yellow (13

24VAC

Black (27

Brown (26

Yellow (10

ŽŶƟŶƵŽƵƐ

&ĂŶDŽĚĞ^ǁ

Cycled

White (20

Orange (21

Not Used

White (18

Z

Shut down

Overide

Grn

Black (29

Red (30

Yellow (13

ůĞĐƚƌŽŶŝĐd,ZDK^dd

,ĞĂƚ

ŽŽů

Blue

Tan (33)

White (28

Black (22

Compressor

Red (19

Black (12

Black (22

Red Blk

Green (00

Brown (26

Black

Blue 230V 265V

dƌĂŶƐĨŽƌŵĞƌ

NOTE 2

NOTE 3

NOTE 1

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

Unit

Power Supply

Lug

R C

208-230/60/1 or

265-277/60/1

TEST

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

Field wire lu Earth Ground Relay Contacts -

N.O., N.C.

132

Polarized Connector

Switch - High Pressure

Switch - Low Pressure Rela

Capacitor Thermistor

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.

)

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Versatec with Remote Thermostat - 208-230-265/60/1

Compressor

PSC

Blower Speed

Switch

Blowe Moto

Grn

Black (29)

Red (30

High Low

Black (25

White (28

Brn

Brn/Wht

Cap

NOTE 3

Blue

Tan (36

White (28

Black (27

Red 208V

Red

Blue 230V/265V

Transformer

Black

Handi - Box

T1T2

L1L2

Black (31

Red (32)

Black

Brown (26

24V

White (20

Black/White

Green (00

Yellow

Unit

Power Suppl

Red

Black

208-230/60/1 or

265-277/60/1

Black (22

Fan Fan COM

CPU

ESLOGOYCR

Green

Brown

Yellow

Oran

P2 1

Black

Blue

Blue 3 8 4

Orange 9

Orange 5

Yellow

SW1

Off

Test / Normal

Loop / Well

Com T-Stat / Normal

Inputs / Normal

9876543

Blue

Split Mode / Normal

White

Not Used

Yellow

Brown

Ground

Orange (21

CCG

NOTE 1

Black/

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

Field wire lu

low voltage wirin

Relay ContactsN.O., N.C.

Thermistor

Rela

coil

NOTE 2

Switch - Hi

h pressure

Switch - Low pressure

132

Polarized connector

Condensate Overflow

CRY1OGLS

Terminal Board

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

Page 22

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

)

Wiring Schematics cont.

Versatec with Unit Mounted Thermostat - 208-230-265/60/1

Compressor

Black

Red

T1T2

L1L2

Black (31

Red (32

Blower Speed

Switch

Grn

Black (29)

High

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

Shut down

Overide

Red

Black (25

ůĞĐƚƌŽŶŝĐd,ZDK^dd

,ĞĂƚ

dϭ

dϮ

dϯ

dϰ

dϱ

dϲ

ŽŽů

Mode Switch

Black

Red

Black (12

Red (11

Orange

Fan Mode Switch

Cycled

ŽŶƟŶƵŽƵƐ

Red

Red (15

Red (16

ƵƚŽ

Fan

Yellow (13

Orange (14

Blue (T6

Green

24VAC

Shutdown

NOTE 3

Yellow (13

Red (11

White (18

Red (17

Ther

PUT

mistor

24 V AC

dϯ

dϭ

dϮ

dϰ

dϲ

dϱ

SHUT

DOWN

Yellow

Red (19

Not Used

Black (27

NOTE 1

Red 208V

Blue 230V/265V

Transformer

Yellow Black/White

Black

Fan Fan COM

CPU

Black (22

ESLOGOYCR

Black (12)

Off

1 2 3 4 5

SW1

Test / Normal Loop / Well Com T-Stat / Normal Inputs / Normal Split Mode / Normal

Black

Blue

Blue 3 8

Orange

9 5

Yellow

Brown

9876543

24V

Brown (26)

White (20

Black/White

Green (00

Yellow

Red (19

Orange (21

CCG

Green

Yellow

Orange

NOTE 2

Brown

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

Ground

Relay Contacts N.O., N.C.

Switch - Hi

Switch - Low Pressure Rela

Capacitor Thermistor

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

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

ECM Motor

ECM Motor Module

Grn

Brown

Orange

Brown/Whtite

Yellow (13)

Electronic THERMOSTAT

A Heat

B Cool

PUT

Fan Switch

High

Low

White (18) Red (17) Red (11)

Ther

mistor

24 V AC

SHUT

DOWN

Black (25)

Mode Switch

Auto

Fan

Black

Red

Black (12)

Red (11)

Orange

Red

Red (15)

Red (16)

Red (19)

Red

Black

Red (17)

Yellow (13)

Orange (14)

Blue (T6)

24VAC

Shutdown

Yellow (13)

Black (27)

Brown (26)

Yellow (10)

Continuous

Fan Mode Sw

Cycled

Brown (26)

Compressor

Blue

Handi - Box

Ground

R C

Lug

R C

Red Blk

Tan (33)

Black

Blue 230V 265V

Red (19)

Black (12)

Black (22)

White (18)

White (20)

Not Used

Orange (21)

Green (34)

NOTE 3

NOTE 1

Transformer

NOTE 2

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

TEST

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

Field wire lug Earth Ground Relay Contacts -

N.O., N.C.

132

Polarized connector

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

AIC

LC1

LC2

Black (111) Black (310)

PB2

Molex

Plug

NOTE 2

Black (31)

Fan Speed

NOTE 3

Switch

NOTE 4

Note 6

Not Used

Motor

Module

Grn

Brown

Orange

High Low

Green (17) Orange (19) Red (120) Yellow (21)

CP/FP

Gray (26)

ECM

Brown/Whtite

DF/AP

Orange (30)

Brown (1) Brown (2)

White (5)

Wht/Blu (6)

Blk (128)

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

23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38

39 40 41

J10

42 43 44 45 46 47 48

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

4 2

A21A12

A23

Compressor

Blu

Handi - Box

Ground

Lug

BlkRed

Tan

Unit Power Supply 208-230/60/1 or

265/60/1

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

Blk/Wht

Yellow

Black/White

White

Orange

Black

Red

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

Blk/Wht (36)

D09

D08

D07

A33

D06

D05

D04

D03

D02

3 2

D01

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

Relay coil

Open Jumper

Closed Jumper

Legend

Switch - High pressure

Switch - Low pressure

Polarized connector

Condensate Overflow

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.

gClg

)

(

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

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

*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

Outputs

SW1-4 Off, SW2 On

Compressor

Not Used Not Used Not Used

SW2 in the On position

Blower

Versatec Logic Board Physical Layout

Blower Blower COM

Blower Relay

CCG

C C

R R

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

Operational Logic Table

Mode

Blower G ON

Inputs Blower Comp RV

Y,O

ON 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

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 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.

Page 27

Controls cont.

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

The user selects either “Heat/Cool” or “Fan Only” on the mode switch, then either “High” or “Low” at the blower speed switch. The temperature can be controlled by rotating the thermostat control knob.

Unit Mounted Control

The “Fan Only” setting provides constant blower operation.

In the “Heat” mode, a call for heat by the thermostat closes the compressor contactor contacts, energizing the compressor, which will run until the thermostat is satisfied.

In the “Cool” mode, a call for cooling by the thermostat energizes the reversing valve and closes the compressor contactor contacts, energizing the compressor, which will run until the thermostat is satisfied.

Component Sequencing Delays

Components are sequenced and delayed for optimum unit performance.

Emergency Shutdown

A grounded signal to common or connecting 24 VAC to the ES terminal places the controller into the emergency shutdown mode. The compressor and blower operation are suspended while in the emergency shutdown mode.

Condensate Overflow Protection

The board incorporates an impedance liquid sensor at the top of the condensate drain pan. Upon a continuous 30-second sensing of the condensate, the cooling operation of the unit is suspended.

Safety Controls

The microprocessor board receives separate signals from a high pressure switch for safety, a low pressure switch to prevent loss of refrigerant charge and a low suction temperature thermistor for freeze detection. Upon a continuous 30-second measurement of the fault (immediate for high pressure), compressor operation is stopped.

If either the low or high pressure safety switches are opened, the compressor and reversing valve are disabled by the lockout relay. Unit operation will resume only after the voltage to the unit is interrupted or the mode switch is placed in the “Off” position.

Optional Versatec Microprocessor Control Features

The Versatec microprocessor board provides control of the entire unit as well as outputs for status modes, faults and diagnostics. The control system is a microprocessorbased control board that is located in the unit control box. This feature is available for either unit mounted controls or optional remote wall mounted thermostat. A 9-pin low voltage terminal strip provides all necessary terminals for the wall mounted thermostat.

Startup

The unit will not operate until all the inputs and safety controls are checked for normal operating conditions.

Fault Retry

All faults are retried twice before finally locking the unit out to prevent nuisance service calls.

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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

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

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

0 seconds

15 seconds

5 minutes

SW1 - #4 Off, SW2 Off

Inputs

Outputs

SW1 - #4 Off, SW2 On

Page 29

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.

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

Page 31

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

Page 33

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

Page 35

Unit Startup Notes

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Electrical Disconnect

Optional field installed console disconnect provides a permanent electrical connection to the main electrical supply branch. Wiring between the disconnect and the unit chassis is field supplied and allows the electrical power source to the chassis to be interrupted for unit servicing.

Non-Fused

Constructed of heavy gauge galvanized steel, the rocker style disconnect switch provides reliable electrical control. Wiring pigtails, using 12-gauge wires, are factory installed to simplify field wiring.

Fused

Similar in construction to the non-fused electrical disconnect. The fused disconnect is available in five models with equipment rated fuses to provide additional circuit protection. The fuses are panel mounted to allow easy inspection and removal without removing the cover on the disconnect. CFD-10 - 10 amp rated fuse CFD-12 - 12 amp rated fuse CFD-15 - 15 amp rated fuse CFD-20 - 20 amp rated fuse CFD-25 - 25 amp rated fuse

Hydronic Loop Controller for Boiler/Tower Installations

The hydronic loop controller is a microprocessor based control panel for control of water loop heat rejector (tower), heat supplier (boiler), and/or water well pumps and circulation pumps. Includes audible and visual alarms, temperature indication, and add-on options of low switches, remote alarm sensor wells and pump alternator.

Page 36

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Unit Startup Checklist/Unit Startup Steps

Before Powering Unit, Check The Following:

• High voltage is correct and matches nameplate.

• Fuses, breakers and wire size correct.

• Low voltage wiring complete.

• Piping completed and water system cleaned and flushed.

• Air is purged from closed loop system.

• Isolation valves are open, water control valves or loop pumps wired.

• Condensate line open and correctly pitched.

• Transformer switched to 208V if applicable.

• Dip switches are set correctly, if applicable.

• Blower rotates freely

• Air filter is clean and in position.

• Service/access panels are in place.

• Return air temperature is between 50-80°F heating and 60-95°F cooling.

• Check air coil cleanliness to ensure optimum performance. Clean as needed according to maintenance guidelines. To obtain maximum performance the air coil should be cleaned before startup. A 10-percent solution of dishwasher detergent and water is recommended for both sides of coil, a thorough water rinse should follow.

Startup Steps

Note: Complete the Equipment Start-Up/Commissioning Check Sheet during this procedure. Refer to thermostat operating instructions and complete the startup procedure.

1. Initiate a control signal to energize the blower motor. Check blower operation.

2. Initiate a control signal to place the unit in the cooling mode. Cooling setpoint must be set below room temperature.

3. Be sure that the compressor and water control valve or loop pump(s) are activated.

4. Verify that the water flow rate is correct by measuring the pressure drop through the heat exchanger using the P/T plugs and comparing to unit capacity data in specification catalog.

5. Check the temperature of both the supply and discharge water (Refer to Unit Operating Parameters tables).

6. Check for an air temperature drop of 15°F to 25°F across the air coil, depending on the fan speed and entering water temperature.

7. Adjust the cooling setpoint above the room temperature and verify that the compressor and water valve or loop pumps deactivate.

8. Initiate a control signal to place the unit in the heating mode. Heating set point must be set above room temperature.

9. Check the temperature of both the supply and discharge water (Refer to Unit Operating Parameters tables).

10. Check for an air temperature rise of 20°F to 35°F across the air coil, depending on the fan speed and entering water temperature.

11. Adjust the heating setpoint below room temperature and verify that the compressor and water valve or loop pump deactivate.

12. During all testing, check for excessive vibration, noise or water leaks. Correct or repair as required.

13. Set system to desired normal operating mode and set temperature to maintain desired comfort level.

14. Instruct the owner/operator in the proper operation of the thermostat and system maintenance.

Note: Be certain to fill out and forward all warranty registration papers.

Page 37

Operating Parameters

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Entering Water

Temp °F

110

Entering Water

Temp °F

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

Cooling

Water Temp Rise °FAir Temp Drop

°F DB

Heating

Water Temp Drop °FAir Temp Rise

°F DB

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.

Page 38

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Pressure Drop

Model GPM

1.2 1.0 0.9 0.8 0.7 0.6

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

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

Page 39

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

Page 40

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

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 -

gpm x 500

Cooling Calculations:

LWT = EWT +

gpm x 500

LAT = EAT +

TH = HC + HWC

cfm x 1.08

LAT(DB) = EAT(DB) -

LC = TC - SC

S/T =

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

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

Page 41

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

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

PSI PSI

BRINE IN

Loop: Open

COAX

SOURCE

BRINE OUT

PSI

°F

Closed

SAT °F=

SUCTION

COMPRESSOR

REVERSING

VALVE

°F°F

DISCHARGE

PSI = SAT F

Superheat Subcooling

Page 42

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Preventive Maintenance

Water Coil Maintenance

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.

Page 43

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

Page 44

ENVISION LOW SILL CONSOLE INSTALLATION MANUAL

Notes

Page 45

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

Page 46

Page 47

Page 48

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

reserves the right to change design and speciﬁ cations without notice.

Document: Installation Manual

WaterFurnace Envision Low Sill User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Model Nomenclature

General Installation Information

Dimensional Data - Flat Top Cabinet

Dimensional Data - Slope Top Cabinet

Dimensional Data - Chassis

Dimensional Data - Controls Detail: Flat Top Chassis

Dimensional Data - Controls Detail: Flat Top Chassis

Physical Data

Installation Steps

System Cleaning and Flushing

Open Loop Ground Water Systems

Water Quality

Electrical Connections

Electrical Data

Blower Performance Data

Wiring Schematics

Controls

Unit Startup Notes

Unit Startup Checklist/Unit Startup Steps

Operating Parameters

Operating Limits

Pressure Drop

Compressor and Thermistor Resistance

Refrigerant Circuit Guideline

Heat of Extraction/Rejection Data

Reference Calculations

Legend

Startup/Troubleshooting Form

Preventive Maintenance

Replacement Procedures

Service Parts