Envision NCW09-18, NCS09-18, NCE09-18 Installation Manual

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Page 1

CONSOLE

Geothermal/Water Source Heat Pumps

• R-410A Refrigerant

• 0.75-1.5 Ton Single Speed

Installation Information

Water Piping Connections

Electrical

Startup Procedures

Troubleshooting

Preventive Maintenance

Envision Console Installation Manual

IM1010CNA 03/14

Page 2

Table of Contents

Model Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

General Installation Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

Installation Steps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-15

System Cleaning and Flushing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Open Loop Ground Water Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Electrical Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Auxiliary Heat Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Blower Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

ENVISION CONSOLE INSTALLATION MANUAL

Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-26

Envision Console Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-36

Unit Startup Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Unit Startup Checklist/Unit Startup Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

Unit Operating Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

Unit Operating Limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

Startup/Troubleshooting Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

Revision Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

Page 3

ENVISION CONSOLE INSTALLATION MANUAL

NC S 09 L 0 1 1 C

4-5 6 7 8 9 10

Vintage

B – PSC Blower & Aluminum Air Coil C – ECM Blower & Aluminum Air Coil

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

Auxiliary Electric

Heat

N – None B – 1.0kW (09-12) C – 2.0kW (09-12) D – 3.0kW (15-18)

Motorized Outside Air Dam

per

(Field Installed)

N – None M – Motorized Damper

Water Coil Option

Thermostat Control

Rev.:

31-2

N B 5 SS

12 13 14

15-16

Model Nomenclature

Model

NC – Envision Series Console

Cabinet Configuration

C – Chassis Only

W – Chassis with Cabinet S – Chassis Slope Top

E – Chassis with Extended 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

NOTES: Chassis only available with left piping option. FX10 option is only available with remote wall-mounted thermostat control.

Voltage Availability

Voltage

115/60/1

09 12 15 18

••

208-230/60/1 ••• •

265/60/1 ••• •

Model

1/20/14

C – Copper N - CuproNickel

1 – Unit Mounted T-Stat 2 – Remote Wall-Mounted T-Stat

02 March 2014D

Page 4

General Installation Information

ENVISION 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.

Refrigerant Systems

To maintain sealed circuit integrity, do not install service gauges unless unit opertion 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 therefrigerant charge may be necessary.

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.

Page 5

ENVISION CONSOLE INSTALLATION MANUAL

Dimensional Data - Flat Top Cabinet

NCW09-18

@756B@3BC@<

@3;=D3>:/AB71AB@7> 4@=;0@=93<B/0/<2 @3>:/13=<0@=93< 3253=4:35/AA6=E<

B=>

47:B3@0@/193B 47:B3@0@/193B

23B/7:0

BE7AB3FB3<232B/0 0/19/<24=@B6C<B7: B/00@3/9A=44 =<:G0@3/9=44 B/0A/;3A723/A 5@7::3:72/AA6=E<

4@=<B

0 5

23B/7:0

BE7AB3FB3<232 B/00/19/<2 4=@B6C<B7: B/00@3/9A=44 =<:G0@3/9=44 B/0A/;3A723/A 5@7::3:72/AA6=E<

:34B@3BC@<

@3;=D3>:/AB71AB@7> 4@=;0@=93<B/0/<2 @3>:/13=<0@=93< 3253=4:35/AA6=E<

Flat Top

Configuration

09-12

15-18

in. 45.0 10.8 25.7 9.2 35.0 6.1 2.3 44.1 10.3 4.3

cm. 114.3 27.3 65.2 23.4 88.9 15.6 5.8 112.0 26.0 10.9

in. 50.0 12.3 25.7 9.2 35.0 6.1 3.3 49.1 11.8 4.3

cm. 127.0 31.1 65.2 23.4 88.9 15.6 8.3 124.7 29.8 10.9

Overall Cabinet

AB C D E F GHI J

Width Depth Height Gr i l l e Li d

Grille

Length

Grille

Width

Page 6

Dimensional Data - Slope Top Cabinet

NCS09-18

ENVISION CONSOLE INSTALLATION MANUAL

@756B@3BC@<

@3;=D3>:/AB71AB@7> 4@=;0@=93<B/0/<2 @3>:/13=<0@=93< 3253=4:35/AA6=E<

47:B3@0@/193B

23B/7:/

BE7AB3FB3<232B/0 0/19/<24=@B6C<B7: B/00@3/9A=44 =<:G0@3/9=44 B/0A/;3A723/A 5@7::3:72/AA6=E<

:34B@3BC@<

B=>

4@=<B

0 5

47:B3@0@/193B

23B/7:0

BE7AB3FB3<232B/0 0/19/<24=@B6C<B7: B/00@3/9A=44 =<:G0@3/9=44 B/0A/;3A723/A 5@7::3:72/AA6=E<

@3;=D3>:/AB71AB@7> 4@=;0@=93<B/0/<2 @3>:/13=<0@=93< 3253=4:35/AA6=E<

Slope Top

Configuration

09-12

15-18

in. 45.0 11.1 28.6 9.2 35.0 6.1 2.8 44.1 10.3 4.3

cm. 114.3 28.2 72.6 23.4 88.9 15.6 7.2 112.0 26.0 10.9

in. 50.0 12.6 29.1 9.2 35.0 6.1 2.5 49.1 11.8 4.3

cm. 127.0 32.0 73.9 23.4 88.9 15.6 6.4 124.7 29.8 10.9

Over all Cabi net

AB C D E F GHI J

Width Depth Hei ght Gril l e Li d

Grille

Length

Grille

Width

Page 7

ENVISION CONSOLE INSTALLATION MANUAL

Dimensional Data - Extended Slope Top Cabinet

NCE09-18

@756B@3BC@< B=>

2 3

4@=<B

@3;=D3>:/AB71AB@7> 4@=;0@=93<B/0/<2 @3>:/13=<0@=93< 3253=4:35/AA6=E<

23B/7:/

BE7AB3FB3<232B/0 0/19/<24=@B6C<B7: B/00@3/9A=44 =<:G0@3/9=44 B/0A/;3A723/A 5@7::3:72/AA6=E<

:34B@3BC@<

0 5

47:B3@0@/193B47:B3@0@/193B

23B/7:0

BE7AB3FB3<232B/0 0/19/<24=@B6C<B7: B/00@3/9A=44 =<:G0@3/9=44 B/0A/;3A723/A 5@7::3:72/AA6=E<

@3;=D3>:/AB71AB@7> 4@=;0@=93<B/0/<2 @3>:/13=<0@=93< 3253=4:35/AA6=E<

Ext. Slope Top Configuration

09-12

15-18

in. 50.0 12.6 29.1 9.2 35.0 6.1 2.4 49.1 12.0 4.3

cm. 127.0 32.0 73.9 23.4 88.9 15.6 6.1 124.7 30.5 10.9

in. 55.0 12.6 29.1 9.2 35.0 6.1 2.5 54.1 11.8 4.3

cm. 139.7 32.0 73.9 23.4 88.9 15.6 6.4 137.4 29.8 10.9

Over all Cabi net

AB C D E F GHI J

Width Depth Hei ght Grill e Li d

Grille

Length

Grille

Width

Page 8

ENVISION CONSOLE INSTALLATION MANUAL

Dimensional Data - Right Return Controls Detail

1=<B@=:>/<3: @3;=D34=@/113AA B=1=<B@=:0=F

4/<=>B7=<AE7B16

3:31B@7163/B;=23 <=@;/:0=7:3@:3AA AE7B16=>B7=</:

2/;>3@=<=44AE7B16

1=;>@3AA=@ /113AA>/<3: @3;=D324=@ 1:/@7BG 0=B6A723A

=>B7=</:0/19>:/B3 @3?C7@324=@ 2/;>3@7<AB/::/B7=<

47:B3@

6/<2G0=F

=>B7=</: 4CA32 <=<4CA32 27A1=<<31B

:=ED=:B/53 B3@;7</:A 4F@3;=B3E/:: AB/B=>B7=<A=<:G

1=<23<A/B3 2@/7<1=<<31B7=<

=>B7=</: 0/::D/:D3A

=>B7=</: 6=A397BA

=CBA723/7@ 2/;>3@=>B7=< 473:27<AB/::32

Page 9

ENVISION CONSOLE INSTALLATION MANUAL

Dimensional Data - Right Return Chassis

Data = inches (cm)

9.38

(23.8)

COMPRESSOR

ACCESS PANEL

WATER OUT 1/2˝ FPT

Models 09-12

CONTROL PANEL

WATER IN 1/2˝ FPT

25.25 (64.1)

21.4

(54.4)

20.0

(50.8)

37.88 (96.2)

28.5

(72.4)

BLOWER ACCESS PANEL

FILTER

10.31 (26.2)

4.5

(11.4)

0.86 (2.2)

2.0

(5.1)

1.0

(2.5)

1.78

(4.5)

11.0

(27.9)

4.37

(11.1)

1.5

(3.8)

1.5

(3.8)

8.88

(22.6)

COMPRESSOR

ACCESS PANEL

WATER OUT 1/2˝ FPT

WATER IN 1/2˝ FPT

25.25 (64.1)

20.6

(52.3)

Models 15-18

42.88

(108.9)

CONTROL PANEL

BLOWER ACCESS PANEL

FILTER

11.75

(29.8)

4.5

(11.4)

0.86 (2.2)

2.0

(5.1)

19.5

(49.5)

34.0

(86.4)

1.0

(2.5)

12.0

(30.5)

4.32

(11.0)

1.5

(3.8)

1.5

(3.8)

5.5

(14.0)

9.25

(23.5)

2.75 (7.0)

43.37

(110.2)

28.0

(71.1)

OPTIONAL BACK PLATE

13.9

(35.3)

0.66

DAMPER OPENING

(1.7)

CONDENSATE DRAIN CONNECTION

12.03 (30.6)

COMPRESSOR

ACCESS PANEL

1.64

(4.2)

19.83 (50.4)

25.65 (65.2)

CONDENSATE DRAIN CONNECTION

48.25

(122.6)

33.0

(83.8)

1.62 (4.1)

OPTIONAL BACK PLATE

25.80 (65.5)

20.0

12.18

(30.9)

(50.8)

5.4

(13.7)

11.78 (29.9)

2.75 (7.0)

13.9

(35.3)

0.83 (2.1)

DAMPER OPENING

COMPRESSOR

ACCESS PANEL

Page 10

ENVISION CONSOLE INSTALLATION MANUAL

Dimensional Data - Left Return Controls Detail

:=ED=:B/53 B3@;7</:A 4F@3;=B3E/:: AB/B=>B7=<A=<:G

=>B7=</: 4CA32 <=<4CA32 27A1=<<31B

=>B7=</: 0/::D/:D3A

=>B7=</: 6=A397BA

1=;>@3AA=@ /113AA>/<3: @3;=D324=@ 1:/@7BG 0=B6A723A

1=<B@=:>/<3: @3;=D34=@/113AA B=1=<B@=:0=F

2/;>3@=<=44AE7B16

3:31B@7163/B;=23 <=@;/:0=7:3@:3AA AE7B16=>B7=</:

4/<=>B7=<AE7B16

=>B7=</: 3:31B@7163/B

6/<2G0=F

47:B3@

1=<23<A/B3 2@/7<1=<<31B7=<

=>B7=</:0/19>:/B3 @3?C7@324=@ 2/;>3@7<AB/::/B7=<

=CBA723/7@ 2/;>3@=>B7=< 473:27<AB/::32

Page 11

ENVISION CONSOLE INSTALLATION MANUAL

Dimensional Data - Left Return Chassis

Data = inches (cm)

1.50 (3.8)

4.37

(11.1)

Models 09-12

BLOWER ACCESS PANEL

FILTER

WATER OUT 1/2˝ FPT

WATER IN 1/2˝ FPT

25.25

(64.1)

21.4

(54.4)

20.0

(50.8)

28.5

(72.4)

0.86 (2.2)

(5.1)

2.0

37.88 (96.2)

CONTROL PANEL

10.31 (26.2)

4.5

(11.4)

9.38

(23.8)

COMPRESSOR

ACCESS PANEL

1.00 (2.5)

1.78

(4.5)

11.0

(27.9)

1.50 (3.8)

4.32

(11.0)

Models 15-18

WATER OUT 1/2˝ FPT

WATER IN 1/2˝ FPT

25.25 (64.1)

20.6

(52.3)

42.88

(108.9)

34.0

(86.4)

CONTROL PANEL

BLOWER ACCESS PANEL

FILTER

0.86 (2.2)

2.0

(5.1)

19.5

(49.5)

11.75 (26.2)

4.5

(11.4)

8.88

(22.6)

COMPRESSOR ACCESS PANEL

1.00

(2.5)

12.0

(30.5)

25.65

(65.1)

19.83

(50.4)

1.62 (4.1)

12.03 (30.5)

COMPRESSOR

ACCESS PANEL

2.75 (7.0)

0.66

(1.7)

CONDENSATE DRAIN CONNECTION

43.37

(110.2)

28.00 (71.1)

OPTIONAL BACK PLATE

13.90

(35.3)

DAMPER OPENING

9.25

(23.5)

5.50

(14.0)

25.80 (65.5)

COMPRESSOR

ACCESS PANEL

20.0

(50.8)

1.62 (4.1)

12.18 (30.9)

CONDENSATE DRAIN CONNECTION

OPTIONAL BACK PLATE

2.75

(7.0)

0.83

(2.1)

48.25

(122.6)

13.90 (35.3)

33.0

(83.8)

11.78 (29.9)

DAMPER OPENING

5.50

(14.0)

Page 12

ENVISION 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 and Motorized Outside Air Damper

• Mark and cut wall penetrations for field fabricated outside air duct sleeve.

• Align mounting holes with backplate and attach with screws supplied.

Figure 1

1=<A=:3 1/07<3 B 0/19 >:/B3 =>B7=</:

4CA323:31B@71/: 27A1=<<31 B=>B7=</:

E/::>3<3B@/B7=< 4=@E/B3@1=<<31B7=<

4:==@>3<3B@/B7=< 4=@E/B3 @1=<<31 B7 =<

E/B3@ 7<

E/B3@ =CB

>B>:C5A =>B7=</:

0/: :D/:D3 A =>B7=</:

=>B7=</:6 =A3A

;=B=@7H32 2/; >3@ =>3<7<5

;=B=@7H32 2/; >3@ =>B7=</:

1=<A=:3 16/AA7A

1=<23<A/B 3 2@/7< :=1/B7=<

1=<A=:3 1/07<3 B

Page 13

ENVISION 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

1=<A=:3 1/07<3 B

E/B 3@1= <<31 B7=<A

1=<A=:3 16/AA7A

4CA323 :3 1B@7 1/: 27A1=<<3 1B =>B7=</:

"D /113AA=@G

#Þ f &Þ/@3 / />>=F  Þ 4@=;32 53 =416/AA7A !Þ4@=;4:==@

B/@53B/@3/4=@ E/::>3<3B@/B7=<

B/@53B/@3/4=@ 4:==@>3<3B@/B7=<

1/07<3 B3FB3<2A B=B67A>=7<B

#Þf&Þ/@3//>>=F Þ 4@=;3253=416/AA7A Þ4@=;4@=<B3253 =41/07<3 B

3:31 B@71/: 8C<1B7=<0=F

1=<23<A/B 3 2@/7< :=1/B7=<

&Þ

#Þ

Page 14

ENVISION 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. Motorized Outside Air Damper - Locate the “damper on/damper off” damper switch within the electrical compartment of the chassis and set to desired position. Emergency Electrical Heat - Locate the “electric heat/normal/boilerless” control switch within the electrical compartment of the chassis and set to desired position.

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 15

ENVISION 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.

Figure 3

Top view

Side view

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.)

Figure 4

Depends on Cabinet Size

Page 16

System Cleaning and Flushing

ENVISION 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.

Insure 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 17

ENVISION 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. Insure 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 micron size

7 - 9 7 - 9 7 - 9

(Total Hardness)

less than 350 ppm

< 0.2 ppm < 0.2 ppm < 0.2 ppm

< 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 18

ENVISION 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

connections or 24 VAC for activation

Field

Connections

24 VAC

COMMON

COMPRESSOR

REVERSING

VALVE

FAN

LOCKOUT

SIGNAL

SHUTDOWN

NIGHT

SETBACK

LOAD SHED

Connections

Unit

Red

Black

Yellow

Orange

Green

Brown

Blue

Violet

Pink

Page 19

ENVISION CONSOLE INSTALLATION MANUAL

Electrical Data

ECM Motor

Model

HACR circuit breaker in USA only

Rated

Voltage

115/60/1 104/127 12.5 8.0 50.0 4.25 12.3 14.3 20

208-230/60/1 187/253 6.4 4.1 21.0 2.6 6.7 7.7 10/15

265/60/1 238/292 6.7 4.3 22.0 2.5 6.8 7.9 10/15

115/60/1 104/127 14.8 9.5 50.0 4.25 13.8 16.1 25

208-230/60/1 187/253 7.7 4.9 25.0 2.6 7.5 8.8 10/15

265/60/1 238/292 7.0 4.5 22.0 2.5 7.0 8.1 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 8.8 10/15

208-230/60/1 187/253 10.4 6.7 33.5 2.6 9.3 10.9 15

265/60/1 238/292 8.7 5.6 28.0 2.5 8.1 9.5 15

Voltage

Min/Max

Compressor

MCC RLA LRA

Fan

Motor

FLA

Total

Unit FLA

Min

Circ

Amp

Max Fuse/ HACR

1/20/14

PSC Motors

Model

HACR circuit breaker in USA only 1/20/14

Rated

Voltage

115/60/1 104/127 12.5 8.0 50.0 0.92 8.9 10.9 25

208-230/60/1 187/253 6.4 4.1 21.0 0.50 4.6 5.6 10/15

265/60/1 238/292 6.7 4.3 22.0 0.50 4.8 5.9 10/15

115/60/1 104/127 14.8 9.5 50.0 0.92 10.4 12.8 30

208-230/60/1 187/253 7.7 4.9 25.0 0.50 5.4 6.6 10/15

265/60/1 238/292 7.0 4.5 22.0 0.50 5.0 6.1 10/15

208-230/60/1 187/253 9.2 5.9 29.0 0.69 6.6 8.1 10/15

265/60/1 238/292 7.8 5.0 28.0 0.65 5.7 6.9 10/15

208-230/60/1 187/253 10.4 6.7 33.5 0.69 7.4 9.1 15

265/60/1 238/292 8.7 5.6 28.0 0.65 6.3 7.7 10/15

Voltage

Min/Max

Compressor

MCC RLA LRA

Fan

Motor

FLA

Total

Unit

FLA

Min

Circ

Amp

Max Fuse/ HACR

Page 20

Auxiliary Heat Ratings

ECM Motors

ENVISION CONSOLE INSTALLATION MANUAL

Model

09-12

(1 kW)

09-12

(2 kW)

15-18

(3 kW)

Always refer to unit nameplate data prior to installation. 10/5/10

Rated

Voltage

208/60/1 197/254 818 2.45 3.93 6.4 8.0 10 230/60/1 197/254 1000 2.60 4.35 7.0 8.7 15

265/60/1 239/291 1000 2.50 3.77 6.3 7.8 10

208/60/1 197/254 1636 2.45 7.86 10.3 12.9 20 230/60/1 197/254 2000 2.60 8.70 11.3 14.1 25

265/60/1 239/292 2000 2.50 7.55 10.1 12.6 20

208/60/1 197/254 2454 2.45 11.80 14.3 17.8 30 230/60/1 197/254 3000 2.60 13.04 15.6 19.6 35

265/60/1 239/292 3000 2.50 11.32 13.8 17.3 30

Voltage

Min./Max.

Heater

Element

Watts

Fan

Motor

FLA

Heater

Element

FLA

Total

Unit FLA

Min.

Circuit

Amp.

Max.

Fuse/

Brkr.

PSC Motors

Model

09-12

(1 kW)

09-12

(2 kW)

15-18

(3 kW)

Rated

Voltage

208/60/1 197/254 818 0.50 3.93 4.4 5.5 10 230/60/1 197/254 1000 0.50 4.35 4.9 6.1 10

265/60/1 239/291 1000 0.50 3.77 4.3 5.3 10 208/60/1 197/254 1636 0.50 7.86 8.4 10.5 15 230/60/1 197/254 2000 0.50 8.70 9.2 11.5 20

265/60/1 239/292 2000 0.50 7.55 8.1 10.1 15 208/60/1 197/254 2454 0.69 11.80 12.5 15.6 25 230/60/1 197/254 3000 0.69 13.04 13.7 17.2 30

265/60/1 239/292 3000 0.65 11.32 12.0 15.0 25

Voltage

Min./Max.

Heater

Element

Watts

Fan

Motor

FLA

Heater

Element

FLA

Total

Unit FLA

Min.

Circuit

Amp.

Max.

Fuse/

Brkr.

10/5/10

Blower Performance Data

PSC Motors

Model

09 300 350

12 300 350 15 450 500 18 450 500

Factory settings are in Bold

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]). Then for velocities of 200 fpm reduce the static capability by 0.03 in. wg, 300 fpm by

0.08 in. wg, 400 fpm by 0.12in. wg. and 500 fpm by 0.16 in. wg.

Low Speed High Speed

CFM

ECM Motors

Model

09 300 325 400

12 300 325 400 15 350 450 600 18 350 450 600

Low Speed Medium Speed High Speed

CFM

Page 21

ENVISION CONSOLE INSTALLATION MANUAL

Wiring Schematics

CCM - ELECTRONIC THERMOSTAT 208-230-265/60/1

Compressor

Grn

Electro nic THER MOSTAT

Shu t d o wn

Overide

Red (30)

A Heat

B Cool

Black (2 9)

Yellow (13)

PSC

Fan

Motor

Wht

White (28)

PUT

Brn

Cap

High

Low

DOWN

Ther

mistor

24 V AC

SHUT

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

Black (2 5)

Black

Red (11)

Black (1 2)

Black

Blue

Handi - Box

Blk/Wh t (24 )

24 V Accessory

Ground

HP HP CC CG LO R CLP LPY

Lug

HP HP CC CG LO R CLP LPY

White (34)

Damper

Motor

Red Blk

Tan (33)

Whit e ( 28 )

Aut o

Fan

Black

Red (15)

Red (16)

Black (2 7)

Brown (26)

Red (19)

Yellow (10)

Fan Mode Sw

Continuous

Red (17)

Red

Yellow (13)

Orange (14) Orange (21)

Blue (T6)

Yellow (13)

24VAC

Shutdown

Cycled

Red (19)

Black (1 2 )

Black (2 2 )

Whit e (18 )

Whit e ( 20 )

Not Used

Green (00)

Brown (26 )

Black

NOTE 1

Blue 230V 265V

Transformer

NOTE 2

NOTE 3

Black (3 1 )

Red

208V

Yellow Black/White

Violet (5)

Violet (4)

Red (32)

24V

Black/White (1) Red (2) Brown ( 3 ) Violet (4) Violet (5) Black (6 ) Black (7 ) Blue (8)

Blue (9) Yell ow (1 0)

Blue/Wht (36)

Blk/ W ht (2 3)

Unit

Power Supply

208- 230 /60/1 or

265-277/60/1

TEST

COMPRESSOR

CONTROL MODULE

Damper Sw ON

OFF

Blue/Wht (35)

Factory low voltage wiring Factory line voltage wiring

Field low voltage wiring Field line voltage wiring

Quick connect terminal

Wire n u t

CC -Compressor Contactor DT - Dam per Term inal Bloc k FS -Freeze Sensing Device HP -High Pressure Switch LP -Low P res s ur e Sw it c h PB - Power Block RB - Blower Relay RV -Rev ers ing V alve C oil ST -Ent er ing A ir Temper at ur e S ens or

Legend

Switch - High Pressure

Switch -Low Pressure

Relay coil

Capacitor

Thermistor

Temperatur e S wit c h

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 f or L ockout.

3. Optional field installed freeze sensing device.

6/10/08

Field wire lug

Eart h Ground Relay Contac ts -

N.O., N.C.

132

Polarized c onnec t or

Page 22

ENVISION CONSOLE INSTALLATION MANUAL

High Lo w NC*09 Oran ge Brown NC*12 Brown/White Orange NC*15 Oran ge Brown NC*18 Brown/White Orange

Blower Setti ngs

Wiring Schematics, cont.

CCM w/ECM - ELECTRONIC THERMOSTAT 208-230-265/60/1

ECM

Shut down

Note 4

Overide

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

SHUT

DOWN

Black (25)

Mode Switch

Auto

Fan

Black

Red

Black (12)

Red (11)

Orange

Red

Red (15)

Red (16)

Red (19)

Red (17)

Yellow (13)

Orange (14)

Blue (T6)

24VAC

Shutdown

Yellow (13)

Red

Black

Black (27)

Brown (26)

Yellow (10)

Fan Mode Sw

Continuous

Cycled

White (18)

White (20)

Orange (21)

Not Used

Compressor

Blue

Handi - Box

Blk/Wht (24)

24 V Accessory

R C

Ground

Lug

R C

White (34)

Damper

Motor

Red Blk

Tan (33)

Red (19)

Black (12)

Black (22)

Green (00)

Brown (26)

Black

Blue 230V 265V

Transformer

NOTE 2

NOTE 3

NOTE 1

Violet (5)

Violet (4)

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)

Blue/Wht (36)

Blk/Wht (23)

Unit

Power Supply

208-230/60/1 or

265-277/60/1

TEST

COMPRESSOR

CONTROL MODULE

Damper Switch

OFF

Blue/Wht (35)

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

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.

Field wire lug

Earth Ground

Relay Contacts N.O., N.C.

132

Polarized connector

Page 23

ENVISION CONSOLE INSTALLATION MANUAL

Wiring Schematics cont.

CCM w/EH - ELECTRONIC THERMOSTAT

Blue

PSC

Fan

Motor

Grn

Red (30)

Black (29 )

Shut do wn

Brn

Wht

Cap

Whit e ( 28)

High

Low

Yell ow (4 4) Yell ow (1 3)

Elec t ronic THERMOSTAT

A Heat

Overide

B Cool

White

T2 T1

Black

Red (11)

Black (12 )

Black

Red (19)

Aut o

Fan

Red (17)

Red

Black

Yellow (13)

Orange (14)

Blue (T6)

24VAC

Shutdown

Red (15)

Red (16)

Black (25)

Whit e (18 ) Red (17) Red (11)

Ther

PUT

mistor

24 V AC

SHUT

DOWN

Tan (41)Blue (40)

White

Black (27)

Brown (26)

Continuous

Fan Mode Sw

Cycled

208-230-265/60/1

Compressor

Handi -Box

NOTE 1

Blk/ W ht (2 3)

24 V Accessor y

Ground

Lug

Red

208V

Transf ormer

HP HP CC CG LO R CLP LPY

Blk /W ht (2 4)

Damper

Motor

24V

HP HP CC CG LO R CLP LPY

Blue (38)

Black (37 )

Whit e ( 34)

Blue

Red Blk

Tan (33)

Brown (26 )

Blue (40) Whit e (28 )

Tan ( 4 1 )

Red (19)

Black (1 2 ) Black (2 2 )

Brown (43)

Whit e (18)

Whit e (20 )

Yellow (44)

Orange (21)

NOTE 4

Gray (42 )

Normal

Blue (T 6 )

C D

Green (00)

NOTE 3

NOTE 2

Black (31 )

Red (32)

Black

Blue 230V 265V

Yellow

Black/White

Black/White (1) Red (2) Brown (3) Violet (4) Violet (5) Black (6 )

Black (7 ) Blue (8)

Blue (9) Yellow (10)

Violet (4) Red (39)

Viol et (5 )

Blue/Wht (36) Blue/Wht (35)

Unit

Power Supply

208-230/60/1 or

265-277/60/1

TEST

COM PRESSOR

CONTROL MODULE

Damper Sw

OFF

Factory low voltage wiring Factory line voltage wiring

Field low voltage wiring Field line voltage wiring

Quick connect terminal

Wire n u t

AQ - A quas t at CC - Com pr es s or C ont ac t or DT -D am per Term inal B lock E1 - Electric Heat Relay EH - Electric Heat Contact or FS - Freez e S ens ing Devic e HP - High Pressure Swit ch LP - Low Pressure Swit ch PB - Power Block RB - Blower Relay RV - Reversing Valve Coil ST - E ntering Air Temper at ur e S ens or

Legend

Field wire lug Eart h Ground Relay Contact s -

N.O., N.C.

132

Polarized c onnect or

Switch - High Pressure

Switch -Low Pressure

Relay coil

Capacitor

Thermistor

Temperatur e S wit c h

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. Optional field installed aquastat.

6/10/08

Page 24

Wiring Schematics cont.

Legend for Schematic [A]

Blower of f delay Com pres s or on delay Short cycle delay Minimum compressor on time High pres s ure f ault rec ognit ion delay Low pres s ure f ault rec ognit ion delay Freez e s ens ing f ault rec ognit ion delay Condens at e ov erf low f ault rec ognit ion delay Low pres s ure f ault by pas s delay Freez e s ens ing f ault by pas s delay Mot oriz ed v alv e delay Random s t art delay

Norm al C ont rol T im ing T able

30 seconds 10 seconds 5 minutes 60 sec onds (except f or f ault c ondit ion )

Less than 1 second 30 seconds 30 seconds 30 sec onds 2 minut es 2 minutes 90 sec onds 0 -25 seconds

ENVISION CONSOLE INSTALLATION MANUAL

208-230-265/60/1VERSATEC CONTROL - EH & REMOTE WALL THERMOSTAT

Versa t e c Logic Board P hysical Lay out

FAN FANCOM

CC Relay

CCG

Fan R e la y C C

R R

5 sec onds 2 sec onds 15 sec onds 5 sec onds (except f or f ault c ondit ion ) Less t han 1 second 30 seconds 30 seconds 30 seconds 0 sec onds 0 sec onds 90 seconds 0 sec onds

LED D is play M ode T able

Tes t C ont rol T im ing T able

LED Normal Display Mode

Drain

Wat e r Flo w

High Pres s

Low Pres s

Air Flow Status DHW Limit HWD

LED

Drain Wat e r Flo w High Press

Low Pres s Air Flow

Status DHW Limit HWD

*Flashing Status light indicates microprocessor is functioning properly. Solid "on" indicates a micro

SW1 - # 4 On, SW2 Off Drain pan over f low loc kout

FS ther m istor (loop < 15° F, well < 30° F ) lock out High press ure > 600 P S I loc kout Low press ur e < 40 PSI loc k out Not us ed Micr opr oces s or m alf unc t ion * Not Used SW 2 stat us (Off =down pos it ion, On= up pos it ion )

Current Faul t Status

SW1- # 4 On, SW2 On Drain pan over f low FS ther m istor (loop High press ure >600 PS I Low press ur e < 40 P S I Not us ed Not us ed Not us ed SW2 in the On position

rocessor malfunctio n.

< 15°F, well <30°F )

Diagnostic Modes

Inputs

SW1-#4 Off , SW2 Off

Not Used

Off position

Outp uts

SW1-#4 Off, SW2 On Y G O

ES NS LS

Compressor

Not Used On position

FAN

ES NS LS

RCYOGLOESNSLS

Microprocessor

Logic Cont rol

17P529A01

SW1

Logic Board D I P Sw it c h Set t ings

Switch OFF ON

Test - Selected timings sped up to facilitate

SW1 - 1

troubleshooting

Loop - Closed loop freeze sensing setting (15°F)

SW1 - 2

Enables NS features

SW1 - 3

IO Display * - Enabl es Input/Output display on external

SW1 - 4

LED board*

SW1 - 5

Motorized Valve - 1.5 minute compressor on delay

OFF * - Normal or Input display mode activated

SW2

*Refer to LED Display Mode table for position of SW1-4 and SW2

Normal - Standard timings

Well - Open loop freeze sensing setting (30°F)

Normal - Standard thermostat operation

Normal * - Unit status display

Normal - Standard delay on call from compressor used

ON * - Current fault or Output display mode activated

Operational Logic T able

Mode

Htg Clg

Fan G ON

Inputs Fan Comp RV

Y,O

ON ON

OFF

Page 25

ENVISION CONSOLE INSTALLATION MANUAL

Wiring Schematics cont.

Schematic [A]

Black

PSC

Fan

Motor

Low

White (28)

Brn/Wht

Brn

Cap

LS2

White

T2 T1

Blue (40)

LS1

White

Tan ( 4 1)

Fan Speed

Switch

Grn

Black(29)

High

Red (30)

208-230-265/60/1VERSATEC CONTROL - EH & REMOTE WALL THERMOSTAT

Compressor

Blu

Tan ( 3 6)

T2 T1

Red

Blk

L1L2

Black (3 1 )

Red (32)

Handi - B ox

Ground

Lug

Unit Power Supply 208-230/60/1 or

265-277/60/1

Red

Black (2 5 )

DAMPER M ODE

Damper

Motor

White (34)

Red 208V

Transf ormer

24V

Yellow

FAN

Black/ White

R R

C C

Green (00)

Black (47)1 Black (4 6 )

6 2

Blue (45)

Blue (44 )

Brown(43)

Orange (42)

4 9

Orange (41)

Yellow Yellow

HP LP CO

Gray (42 )

RV FS

Off

Blue/Wht (35)

Blue/Wht (36)

Brown (43)

Red(19)

Red (39)

Blue (38 )

Black(27)

Black (2 2 )

COM

Black (37 )

CCG

CPU

SW1

OnOff

Test / Nor mal

Loop / Well

Inputs / Normal

Ou tp u ts / No r ma l

Motorized Valve / No rm a l

Blue 265V

Blue 230V

FAN

NOTE 5

Black Com

Orange (21)

LSNSESLOGOYCR

Red

Bl ack

Yellow

Orange

Pink

Bl ue

Violet

Brown

Green

White

Relay ContactsN.O., N.C.

Thermistor

Re lay coil

Factory low voltage wiring Factory line voltage wiring Field low voltage wiring Field line voltage wiring

DC voltage PCB traces Internal junction Quick connect terminal

Wire nut

Field wire lug Ground

Black/ White

NOTE 2

Black/ White

Legend

132

Legend

Switch - High pressure

Switch -Low pressure

Polarized connector

Condensate Overflow

CRY1OGLS

X2 X1 W1

Terminal Board

AQ – Aquastat

CC – Compres s or Contactor CO – Condensate Overflow DT – Damper Terminal Block E1 – Electric Heat Relay EH – Electric Heat Contactor

ES – Emergency Shutdown

FS – Freeze Se nsing Device HP – Hig h Pressure Sw itch LP – Low Pressure Switch LS – Loadshed MV – Motorized Valve NS – Night Setback RB – Blower Power Relay RV – Reversing Valve Coil SW1 – D IP Swit c h #1

NOTE 1

NOTE 3

Notes: 1 -Requires common connection or 24 VAC for

activation. 2 -When field installed 24VAC motorized

valve is used, connect to C and Y or SV terminals. 3 -Optional field installed aquastat for use with single heat

4 -Check installlation wiring information for specific thermostat hookup instructions.

5 -Switch blue and red wires for 208V operation.

97P786-04 6/10/08

Page 26

ENVISION CONSOLE INSTALLATION MANUAL

Wiring Schematics cont.

FX10 - EH 208-230-265/60/1

Compressor

Handi - B ox

Red

MEHS

Red (20)

Black

Yellow

Ground

PB1

L1 L2

Lug

BlkRed

Tan

Black

Yell ow (3 3)

Molex Plug

Black (1)

Black (111)

Black (310)

Yellow (9)

Orange (7)

Black (6 )

Black (5 )

Blue (4)

Gray (3)

Black (2)

Black

(12)

Yellow (16)

16 15

13 12

9 8 7

6 5 4

3 2 1

Blue 240V

277V

NOTE 1

Red 208V

Blk

Power S upply 208-230/60/1 or

265-277/60/1

Blk/Wht

White

Blk/Wht

Unit

Transf ormer

Yellow

Blk

Orange

EHC

NOTE 5

24VAC

24V COM

Alarm

Acc 1

Acc 2

Fan

Rev Valve

Comp

Setpoint Shift

AI Com

Room Sens or

Sensor Com

Tem p Oc c

AIC

LC1

LC2

Black (11 1 ) Black (31 0 )

PB2

Molex

Plug

NOTE 2

Black (3 1)

Fan Spe e d

NOTE 3

Switch

NOTE 4

Grn

Blk

Red

High Low

Org/Wht (12)

Green (17)

Orange (19)

Red (120)

Yellow ( 21)

CP/FP

Gray (26 )

PSC Fan

Motor

DF/AP

Brown (1)

Brown (2)

Wht /B lu ( 6)

Blk/Red (9)

Blu/ W h t (10 )

Org/Bck (11)

Gry /Wht (1 4 )

Black (6 )

Black (2 2 ) Violet (23) Red (24)

Blue (27)Blue (32 )

Pink (28)

Blk /W ht (2 9) Orange (30)

Brn

Red (120)

White (5)

Brn/Wht

11K

Cap

White

Blue

Blu

EHC

Black(121)

Yellow (35)

A33

White

LS2

Black (515)

Blk/ W ht (3 6)

TAN

BLUE

Black (1 31 )

Black (3 4 )

D09

D08

D07

D06

D05 D04

D03

D02

D01

LS1

White

T2 T1

Black

5VDC

AI3

AI5

AI4

AI6 +

AI2 +

5VDC

AI1

36 37 38

39 40 41

J10

42 43 44 45 46 47 48

49 50 51 52 53 54 55 56

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

A21A12

A23

Black

Black (6 )

Gree n ( 37)

24VAC

24VAC Com

GROUND

A14

A24

A34

A25 A2 2

A32

A31A35

A13

A11

A15

Johnson FX-10

Factory low voltage wiring Factory line voltage wiring

Field low voltage wiring

Field line voltage wiring Field Zone Sensor Wiring

Internal junction

Quick conn ect t ermina l

Wire nut

Field wire lug

Ground

Relay Contacts-

N.O., N.C.

Thermistor -Johnson Control

Re lay coil

Open Jumper

Closed Jumper

Legend

Switch -High pressure

Switch - Low pressure

Polarized con n ector

132

Condensate Overflow

CC - Compressor Contactor CO - Condensat e Overf low CP/FP - Compressor Proving/Fan Prov ing DA -Disc har ge A ir Temper ature DF/AP - Dirty Filter /Air P r ov ing EHC - Electric Heat Contactor EHR - Electric Heat Relay ES - Emergency Shutdown FS - Freez e S ens ing Devic e HP -H igh P r es s u re S wit ch LP - Low Pressure Switch MEHS - M anual E H S wit c h OS - Occupied Switch RB -Blower P ower Replay RV -Rev ers ing V alve Coil TB - Terminal Block

Notes:

1 -Switch Blue and Red wires for 208V operation 2 -Disconnect for 15 degree freeze protection 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.

6/10/08

Page 27

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls

Control General Description Application Display/Interface Protocol Thermostat Options

CCM Control The CCM (Compressor control 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 microporcessor handles the unit mounted thermostat for maintaining accurate room temperature.

Versatec Control The Versatec Control is a

microprocessor based board that adds the features of emergency shutdown (ES), night setback (NS), water freeze sensing (FS), Load Shed (LS) and condensate overﬂ ow (CO). The Versatec Control also features Optional Field servicing LED's 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), night setback (NS), load shed (LS), water freeze sensing (FS), and condensate overﬂ ow (CO).

Dial thermostat with Hi and Low fan speeds, and auto changeover or cont fan selection switches.

Optional ﬁ eld servicing LED board for mode, fault and diagnostic indication

None Unit Mounted Digital

Dial Thermostat

Remote Mounted Standard Thermostat

None Unit Mounted Digital

Dial Thermostat

Remote Mounted Standard Thermostat

FX10 The FX10 microprocessor control 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 ECM fan motors.

FX10 w/ N2 FX10 Control functions as both 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.

FX10 w/ LonWorks FX10 Control functions as both 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.

FX10 w/ BACnet FX10 Control functions as both 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 ECM fan 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 40 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 ﬁ eld 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 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 fan switches.

• Internally mounted fan switch to choose cycled or constant fan 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 28

Envision Console Controls cont.

ENVISION CONSOLE INSTALLATION MANUAL

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

Figure 6: Unit Mounted Control

The “Fan Only” setting provides constant fan 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.

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.

Component Sequencing Delays

Components are sequenced and delayed for optimum unit performance.

Short Cycle Protection and Random Start

The control allows a minimum on or off time of 5 minutes for short cycle protection. A random time delay of 0 to 30 seconds is generated after each power-up to prevent simultaneous start up of all units within a building after the release from an unoccupied cycle or power loss.

The emergency electric heat operation in the “Heat/Cool” mode is subject to the setting of the internally mounted mode switch. The optional, factory installed electric heat will operate when the internally mounted mode switch is in the “Emergency Heat” mode. In the “Heat” mode, a call for heating energizes the fan and electric heater contactor, energizing the electric heat elements and fan, which will run until the thermostat is satisfied. When the internally mounted mode switch is in the “Normal/Boilerless” mode the unit operates in its normal “Heat/Cool” operation, unless there is an aquastat controller. When the normally open circuit of the aquastat closes and the unit is in the heating mode, it will switch to the “Emergency Heat” condition until the thermostat is satisfied or the aquastat opens restarting the compressor.

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.

If the electric heat limit switches are opened, the electric heat is disabled.

Night Setback

A grounded signal to common or connecting 24 VAC to the NS terminal will initiate the night setback mode.

Load Shed

A grounded signal to common or connecting 24 VAC to the LS terminal places the controller into the load shed mode. The compressor will become disabled and the fan will start upon a thermostat call for heating or cooling.

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 fan 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 30second 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

Page 29

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls cont.

prevent loss of refrigerant charge and a low suction temperature thermistor for freeze sensing. Upon a continuous

30-second measurement of the fault (immediate for high pressure), compressor operation is stopped.

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

Miniumum 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

Test - Selected timings sped up to facilitate troubleshooting Normal - Standard timings

Loop - Closed loop freeze sensing setting (15°F) Well - Open loop freeze sensing 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 fan Configures board for 2-speed compressor with fan

30 seconds

10 seconds

5 minutes

2 minutes (except for fault condition)

Less than 1 second

30 seconds

2 minutes

5 minutes

Mode Inputs Fan Comp RV

Htg

Clg

Fan

YONONOFF

Y,OONONON

G ON OFF OFF

Test Control Timing

Blower off delay

Compressor on delay

Short cycle delay

Miniumum 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

0 seconds

15 seconds

5 minutes

Diagnostic Modes

LED

Drain Drain pan overflow Y Compressor

Water Flow FS thermistor (loop <15°F, well <30°F) G FAN

High Press High pressure >600 PSI O O

Low Press Low pressure <40 PSI ES ES

Air Flow Not used NS NS

Status Not used LS LS

DHW Limit Not used Not used Not used

HWD SW2 in the On position Off position On position

Current Fault Status

SW1 - #4 On, SW2 On

Inputs

SW1 - #4 Off, SW2 Off

Outputs

SW1 - #4 Off, SW2 On

Page 30

Envision Console Controls cont.

ENVISION 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.

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.

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.

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.

Page 31

ENVISION CONSOLE INSTALLATION MANUAL

system (BAS). This means that not o

Envision Console Controls cont.

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

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

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. If you are using an ECM2.3 blower motor the control can enable dehumidification mode based on a set point in the control. The dehumidification set point itself can also be changed over a BAS or with a MUI. Dehumidification mode can also be enabled by the BAS. Because the FX10 is not factory configured to read CO application assistance.

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, MUIK1 - Panel mount version and the MUIK2-Wall mount version.

levels, contact the factory for

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 TAXXA01 sensor through a building automation system or with a user interface.

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. All ECM2.3 variable blower speed settings can be changed over a BAS or with a MUI. The control has an input programmed to enable field installed emergency heat in the event that the compressor is locked out. This input can also be commanded on from a BAS as needed. An alarm history can be viewed through the

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.

Page 32

Envision Console Controls cont.

ENVISION CONSOLE INSTALLATION MANUAL

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 consecutive faults occur in 60 minutes during a single heating or cooling demand, the unit will go into lockout mode, turning off the compressor, enabling the alarm output, and setting the blower back to low speed operation 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 compressor output immediately and count the fault. The compressor minimum on time does not apply if the highpressure 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. 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

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

Page 33

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls cont.

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.

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.

Auxiliary heat output can be controlled over the BAS.

Set Point Control Mode

In set point control mode the reversing valve output will be disabled. As the temperature drops below the heating set point and begins to operate in the heating proportional band, the low capacity compressor output (BO-2) will be enabled. A PI loop in the programming of the control will determine when the full capacity compressor output (BO-4) is to be enabled. The compressor must be operating in low capacity for a minimum of 30 seconds before the full capacity compressor output can be enabled.

Thermostat Control Mode

In thermostat mode the compressor will be cycled based on Y1 calls from a room thermostat. When the control receives a Y1 command (BI-7) from the thermostat, the compressor output (BO2) will be

enabled. During the heating cycle the reversing valve will be commanded into the off position.

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.

Set Point Control Mode

In set point control mode the reversing valve output will be enabled. As the temperature falls below the cooling set point and begins to operate in the cooling proportional band, the low capacity compressor output (BO-2) will be enabled. A PI loop in the programming of the control will determine when the full capacity compressor output (BO-4) is to be enabled. The compressor must be operating in low capacity for a minimum of 30 seconds before the full capacity compressor output can be enabled.

Thermostat Control Mode

In thermostat mode the compressor will be cycled based on Y1 calls from a room thermostat. When the control receives a Y1 command (BI-7) from the thermostat, the compressor output (BO2) will be enabled. During the cooling cycle the reversing valve will be commanded into the “ON” position.

Emergency Heat/Network Enabled Output (BO5)

This output is set from the factory to enable/disable emergency heat. If a problem occurs with the unit resulting in the compressor being locked out in heating mode, the control will automatically enable this output to turn on field installed electric heat. This output is interlocked with the blower proving input BI-6 (Blower proving sensors must be field supplied and installed). BI-6 must be connected to PB2 position 3 (see unit schematic) in the field if no blower proving sensor is desired. There is a configurable parameter available through a BAS network that must be enabled if this output is to be commanded over the BAS network.

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.

Page 34

Envision Console Controls cont.

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.

ENVISION CONSOLE INSTALLATION MANUAL

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

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

Accessory 1 Output BO7

Control Accessories

Zone Sensors

• TAXXJ02 Room Command Module

• TAXXA01 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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ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls cont.

FX10 User Interface (MUI) Physical Layout

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

Welcome

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

Page 36

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console 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 applicati on implements an alarm history which is reset only by cycling power. This history 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 bypasses the On 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 37

ENVISION CONSOLE INSTALLATION MANUAL

Unit Startup Notes

Emergency Electric Resistance Heat

A factory-installed emergency electric heater package is available. Rated for 2,000 watts on models NC09 through NC12 and 3,000 watts on models NC15 through NC18. The heater package consists of ni-cad elements, ceramic insulators, and thermal limit switches. A concealed, chassis mounted rocker switch controls the heater mode operation and allows the field installation of an aquastat for boilerless unit operation.

Electrical Disconnect

Field installed on the optional chassis back plate, the 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.

Motorized Outside Air Damper

A field installed motorized outside air damper is available to allow the introduction of fresh air into the conditioned space through an outside vent. The damper motor is powered by 24 volts with a spring-close design in the event of a power failure. The damper blade and housing are constructed of aluminum for corrosion resistance and the blade includes a neoprene gasket to prevent air infiltration during off cycles. The damper assembly is installed on the optional chassis back plate and a two-wire low voltage connection simplifies wiring. A concealed, chassis mounted rocker switch allows the damper to be disabled

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ENVISION 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 50-80ºF heating and 60-95ºF cooling.

• Check air coil cleanliness to insure 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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ENVISION CONSOLE INSTALLATION MANUAL

Unit Operating Parameters

Single Speed Models

Entering

Water Temp

°F

Water Flow

GPM/Ton

Suction

Pressure

PSIG

Discharge

Pressure

PSIG

09-18

Superheat

09-18

Subcooling

1.5 127 - 144 205 - 225 5 - 10 10 - 14 18 - 22 18 - 22

3.0 120 - 140 185 - 205 7 - 15 5 - 10 8 - 10 18 - 22

1.5 139 - 154 280 - 300 8 - 11 8 -12 18 - 22 18 - 22

3.0 137 - 152 250 - 270 9 - 12 7 - 11 8 - 10 18 - 22

1.5 143 - 158 360 - 380 8 - 11 9 - 13 18 - 22 16 - 20

3.0 141 - 156 330 - 350 9 - 12 8 - 12 8 - 10 16 - 20

Heating

Cooling

Entering

Water Temp

°F

Water Flow

GPM/Ton

Suction

Pressure

PSIG

Discharge

Pressure

PSIG

09-18

Superheat

09-18

Subcooling

1.5 73 - 79 279 - 304 7 - 13 2 - 6 7 -10 18 - 24

3.0 79 - 85 285 - 310 8 - 14 2 - 6 3 - 6 20 - 26

1.5 103 - 109 308 - 333 8 - 12 4 - 8 8 - 11 20 - 26

3.0 110 - 116 315 - 340 9 - 13 4 - 8 4 - 7 22 - 28

1.5 140 - 146 330 - 365 10 - 14 7 - 11 11 - 14 26 - 32

3.0 146 - 153 340 - 375 10 - 14 7 - 11 7 - 10 28 - 34

Note: Cooling performance based on entering air temperatures of 80º F DB, 67º F WB. Heating performance based on entering air temperature of 70º F DB.

Water Temp

Rise °F

Water

Temp Drop

°F

Air Temp

Drop °F DB

Air Temp

Rise °F DB

Unit 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

Notes:

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.

Cooling Heating

(°F) (°C) (°F) (°C)

Page 40

DEALER: PHONE #: DATE: PROBLEM: MODEL #:

ENVISION 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 41

ENVISION 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

Pressure Drop (psi)

30°F 50°F 70°F 90°F 110°F

12/14/09

Page 42

Preventive Maintenance

ENVISION CONSOLE INSTALLATION MANUAL

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.

Page 43

ENVISION CONSOLE INSTALLATION MANUAL

Notes

Page 44

ENVISION CONSOLE INSTALLATION MANUAL

Revision Guide

Pages: Description: Date: By:

All Updated With Aluminum Air Coils 02 Mar 2014 DS

44 Added Revision Guide 02 Mar 2014 DS

Page 45

Manufactured by WaterFurnace International, Inc. 9000 Conservation Way Fort Wayne, IN 46809 www.waterfurnace.com

IM1010CNA 03/14

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

Product: Envision Series Console Type: Geothermal/Water Source Heat Pumps Size: 0.75-1.5 Ton Document: Installation Manual

Envision NCW09-18, NCS09-18, NCE09-18 Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual