Envision Peripherals Water Furnace Im1609 08 Users Manual

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Envision Console Installation Manual

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

IM1609 10/08

ENVISION CONSOLE INSTALLATION MANUAL

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
Auxiliary Heat Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  18
Unit Electrical Data  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Fan Performance Table  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-24
Envision Console Controls  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-39
Unit Startup Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Unit Startup Checklist/Unit Startup Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Unit Operating Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Unit Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Startup/Troubleshooting Form  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Replacement Procedures  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

2

ENVISION CONSOLE INSTALLATION MANUAL

CONSOLES

Model Nomenclature
1-2
NC

3
C

4-5
09

6
L

7
0

8
1

9
1

10
C

11
N

Family
NC = Envision Console

12
N

13
A

14
1

15-16 17
SS
A
Vintage
A = Current
Non-Standard Option Details
SS = Standard Option

Cabinet Configuration
C = Chassis Only
W = Chassis with Cabinet
S = Chassis with Slope Top
E = Chassis with Extended Slope Top
Unit Capacity
MBTUH @ 86 oF EWT
09, 12, 15, 18

Air Coil / Insulation Options
1 = Formishield / Extended Range
2 = Formishield / Standard Range
3 = No Coating / Extended Range
4 = No Coating / Standard Range

Piping Option
L = Left
R= Right (N/A with chassis only)

Sound Kit
A = None
B = Blanket

Voltage
0 = 208-230/60/1
2 = 265/60/1

Auxilliary Electric heat
N = None
C = 2.0 kW (09-12)*
D = 3.0 kW (15-18)*

Unit Control
1 = CCM
2 = Versatec
4 = FX10 std. no communication - (only w/ t-stat control option 2)
5 = FX10 w/Open N2 Com Card - (only w/ t-stat control option 2)
6 = FX10 w/Lonworks Com Card - (only w/ t-stat control option 2)
7 = FX10 w/BacNet Com Card - (only w/ t-stat control option 2)

Motorized Oustide Air Damper (Field Installed)
N = None
M = Motorized Damper
Coax Options
C = Copper
N = Cupronickel

Thermostat Control
1 = Unit mounted t-stat
2 = Remote wall-mounted t-stat

3

ENVISION CONSOLE INSTALLATION MANUAL

General Installation Information
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.

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.

	

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

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

Water Piping
The proper water flow must be provided to each unit whenever the unit operates. To assure proper flow, use pressure/
temperature ports to determine the flow rate. These ports
should be located at the supply and return water connections on the unit. The proper flow rate cannot be accurately
set without measuring the water pressure drop through the
refrigerant-to-water heat exchanger.
All source water connections on commercial units are fittings that accept a male pipe thread (MPT). Insert the connectors by hand, then tighten the fitting with a wrench to
provide a leakproof joint. When connecting to an open loop
(groundwater) system, thread any copper MPT fitting into
the connector and tighten in the same manner as described
above.

4

ENVISION CONSOLE INSTALLATION MANUAL

Dimensional Data - Flat Top Cabinet
NCW09-18

@756B@3BC@<

:34B@3BC@<
B=>

4

2

/

3

0
5

/

0

47:B3@0@/193B

47:B3@0@/193B
1

8
6

23B/7:0

7

23B/7:0

4@=:/AB71AB@7>
4@=;0@=93<B/0/<2
@3>:/13=<0@=93<
3253=4:35/AA6=E<

@3;=D3>:/AB71AB@7>
4@=;0@=93<B/0/<2
@3>:/13=<0@=93<
3253=4:35/AA6=E<

Overall Cabinet

Flat Top
Configuration
09-12
15-18

in.
cm.
in.
cm.

A

B

C

D

Width Depth Height Grille Lid
45.0
114.3
50.0
127.0

10.8
27.3
12.3
31.1

25.7
65.2
25.7
65.2

9.2
23.4
9.2
23.4

5

E

F

Grille
Length
35.0
88.9
35.0
88.9

Grille
Width
6.1
15.6
6.1
15.6

G

H

I

2.3 44.1 10.3
5.8 112.0 26.0
3.3 49.1 11.8
8.3 124.7 29.8

J

4.3
10.9
4.3
10.9

ENVISION CONSOLE INSTALLATION MANUAL

Dimensional Data - Slope Top Cabinet
NCS09-18

@756B@3BC@<

:34B@3BC@<
B=>

4

2

3
0
5

/

/

0
47:B3@0@/193B

47:B3@0@/193B

1

23B/7:/

23B/7:0

8

BE7AB3FB3<232B/0
0/19/<24=@B6C:/AB71AB@7>
4@=;0@=93<B/0/<2
@3>:/13=<0@=93<
3253=4:35/AA6=E<

@3;=D3>:/AB71AB@7>
4@=;0@=93<B/0/<2
@3>:/13=<0@=93<
3253=4:35/AA6=E<

Slope Top
Configuration

Overall Cabinet
A

B

C

D

Width Depth Height Grille Lid

E
Grille
Length

F
Grille
Width

G

H

I

J

09-12

in.
cm.

45.0 11.1
114.3 28.2

28.6
72.6

9.2
23.4

35.0
88.9

6.1
15.6

2.8 44.1 10.3
7.2 112.0 26.0

4.3
10.9

15-18

in.
cm.

50.0 12.6
127.0 32.0

29.1
73.9

9.2
23.4

35.0
88.9

6.1
15.6

2.5 49.1 11.8
6.4 124.7 29.8

4.3
10.9

6

ENVISION CONSOLE INSTALLATION MANUAL

Dimensional Data - Extended Slope Top Cabinet
NCE09-18

@756B@3BC@<

B=>

:34B@3BC@<

4

2

3

0
5

/

47:B3@0@/193B

/

47:B3@0@/193B

1

0

8
7

6

23B/7:/
BE7AB3FB3<232B/0
0/19/<24=@B6C:/AB71AB@7>
4@=;0@=93<B/0/<2
@3>:/13=<0@=93<
3253=4:35/AA6=E<

@3;=D3>:/AB71AB@7>
4@=;0@=93<B/0/<2
@3>:/13=<0@=93<
3253=4:35/AA6=E<

Ext. Slope Top
Configuration

Overall Cabinet
A

B

C

D

09-12

in.
cm.

50.0 12.6
127.0 32.0

29.1
73.9

9.2
23.4

E
Grille
Length
35.0
88.9

15-18

in.
cm.

55.0 12.6
139.7 32.0

29.1
73.9

9.2
23.4

35.0
88.9

Width Depth Height Grille Lid

7

F
Grille
Width
6.1
15.6

G

H

I

J

2.4 49.1 12.0
6.1 124.7 30.5

4.3
10.9

6.1
15.6

2.5 54.1 11.8
6.4 137.4 29.8

4.3
10.9

ENVISION CONSOLE INSTALLATION MANUAL

Dimensional Data - Right Return Controls Detail
6/<2G0=F

1=/<3:
@3;=D34=@/113AA
B=1=B7=B7=<AE7B16
3:31B@7163/B;=23
<=@;/:0=7:3@:3AA
AE7B16=>B7=B7=3@=<=44AE7B16

1=<23@3AA=@
/113AA>/<3:
@3;=D324=@
1:/@7BG
0=B6A723A

=>B7=B7=:/B3
@3?C7@324=@
2/;>3@73@=>B7=<
473:27B7=/<3:

<1#&
" &&
&'

&&&
 $

&#
% "

1=/<3:

!"
&$"

#
!&

#
!&

0:=E3@/113AA>/<3:

0:=E3@/113AA>/<3:

1=;>@3AA=@
/113AA>/<3:

1=;>@3AA=@
/113AA>/<3:

#
!&

#
!&

"!%


"!


47:B3@

47:B3@

!
 $ 
"#
"

E/B3@=CB Þ4>B
E/B3@7< Þ4>B

%#
 '&
"#
"

E/B3@=CB Þ4>B


 #

E/B3@7< Þ4>B

&$
  


 #

&$
  


#


#
%&
"#

# #
$"

# #
$"

"
#""

$
# !

#&

'#
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 %'

1=<23B7=:/B3

=>B7=:/B3
#$#
$# 

#&
$##

'&!
#"
' #
 !#

##
"

%#
%

!'
!#!

$$
%


#&
%&
 ''

 !
!$

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

#"
!%

1=;>@3AA=@
/113AA>/<3:

9

%#
%

!'
!#!

&!
 

 &
!'

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

1=;>@3AA=@
/113AA>/<3:

ENVISION CONSOLE INSTALLATION MANUAL

Dimensional Data - Left Return Controls Detail
1=/<3:
@3;=D34=@/113AA
B=1=3@=<=44AE7B16

:=ED=:B/53
B3@;7B7=B7=B7=B7=B7=<AE7B16

=>B7=@3AA=@
/113AA>/<3:
@3;=D324=@
1:/@7BG
0=B6A723A

=>B7=B7=:/B3
@3?C7@324=@
2/;>3@73@=>B7=<
473:27/<3:

" &&
&'

&&&
 $

1=/<3:

#
!&

#
!&

#
!&

#
!&

0:=E3@/113AA>/<3:

0:=E3@/113AA>/<3:

1=;>@3AA=@
/113AA>/<3:

1=;>@3AA=@
/113AA>/<3:

"!%


"!

47:B3@

47:B3@

!
 $ 

%#
 $ 

"#
"

E/B3@=CB Þ4>B

E/B3@=CB Þ4>B


 #

E/B3@7< Þ4>B

"#
"

E/B3@7< Þ4>B

&$
  


 #

&$
  


#


#

# #
$"

# #
$"

%&
"#

"
#""

$
# !

#&

'#
"'#

 %'

 
!#

1=<23B7=:/B3

=>B7=:/B3

#$#
$#

#&
$##

'&!
#"


#&

 !
!#

1=;>@3AA=@
/113AA>/<3:

%#
%

$$
%

!'
!#!

' #
 !#

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

 &
!'

##
"

1=;>@3AA=@
/113AA>/<3:

11

%#
%

&!
 

!'
!#!

%&
 ''

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

##
"

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

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

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

E/B3@
7<
4:==@>3<3B@/B7=<
4=@E/B3@1=<<31B7=<

E/B3@
=CB
>B>:C5A
=>B7=B7=B7=B7=>=F Þ
4@=;3253=416/AA7A
!Þ4@=;4:==@

B/@53B/@3/4=@
E/::>3<3B@/B7=<

B/@53B/@3/4=@
4:==@>3<3B@/B7=<
1=<23=7>=F Þ
4@=;3253=416/AA7A
Þ4@=;4@=600 PSI lockout

Low Press

Low pressure < 40 PSI lockout

Air Flow

Not used

Status

Microprocessor malfunction*

DHW Limit

Not Used

HWD

SW2 status (Off = down position, On = up position)

LED

Current Fault Status

Drain
Water Flow
High Press
Low Press
Air Flow
Status
DHW Limit
HWD

SW1- #4 On, SW2 On
Drain pan overflow
FS thermistor (loop <15°F, well <30°F)
High pressure > 600 PSI
Low pressure < 40 PSI
Not used
Not used
Not used
SW2 in the On position

Diagnostic Modes
Inputs
SW1- #4 Off, SW2 Off
Y
G
O
ES
NS
LS
Not Used
Off position

2

P2

3
4
5

SW1

Microprocessor
Logic Control
17P529A01

P1
R

C

Y

Switch

SW1 - #4 On, SW2 Off
Water Flow

10

1

O

G

LO

ES

NS

LS

Logic Board DIP Switch Settings

Normal Display Mode

Drain

9

P3

LED Display Mode Table
LED

FANCOM

CC

OFF

ON

SW1 - 1

Test - Selected timings sped up to facilitate
troubleshooting

Normal - Standard timings

SW1 - 2

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

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

SW1 - 3

Enables NS features

Normal - Standard thermostat operation

SW1 - 4

IO Display * - Enables Input/Output display on external
LED board*

Normal * - Unit status display

SW1 - 5

Motorized Valve - 1.5 minute compressor on delay

Normal - Standard delay on call from
compressor used

OFF * - Normal or Input display mode activated

ON * - Current fault or Output display
mode activated

SW2

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

Outputs
SW1- # 4 Off, SW2 On
Compressor
FAN
O
ES
NS
LS
Not Used
On position

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

22

Mode
Htg
Clg
Fan

Operational Logic Table
Inputs
Fan
Comp
ON
ON
Y
ON
ON
Y,O
G
ON
OFF

RV
OFF
ON
OFF

Microprocessor – with Remote Wall Stat & Electric Heat

ENVISION CONSOLE INSTALLATION MANUAL

Wiring Schematic
VERSATEC CONTROL - EH & REMOTE WALL THERMOSTAT
Black
Schematic [A]
PSC
Fan
Motor

208-230-265/60/1
Compressor
Blu

Brn/Wht

Grn

Brn

LS2

S

C

Cap

White

Red

White

Ground
Lug

Blk

T1
EH

Black(29)

L2

White (28)

Red (30)

T2

T1

L1

Blue (40)

CC
L2

Tan (41)

L1

Low

High

Red (32)

Red(25)
Black

RB
4

Black (31)

Transformer

Black Com

Black(27)

2

NOTE 5
Blue 265V
Blue 230V

24V

Red 208V

Yellow
DAMPER MODE
Off

1

RB

3

Black (22)

Orange (21)

FAN

FAN
COM

On
Blue/Wht (35)

Black/White
Damper
Motor

DT

D

CC

R

Red(19)

R

Blue/Wht (36)
White (34)
5

CC

EH

C

Black (37)
2

Brown (43)

CCG

4

Red (39)

C

E1

Green (00)
P2

CPU

Blue (38)

1
6
2
7
3
8
4
9
5
10

SW1
Off
1
2
3
4
5

On
Test / Normal
Loop / Well
Inputs / Normal
Outputs / Normal
Motorized Valve/ Normal

Black (47)
Black (46)
Blue (45 )
Blue (44)
Brown(43)
Orange (42)
Orange (41 )
Yellow
Yellow

HP
LP
CO

Gray (42)

RV
T

FS

P1

Pink

Bl ue

Violet

Brown

Green

Orange

Yellow

Red

R C Y O G LO ES NS LS

Bl ack

Fan Speed
Switch

T2

L

G

Handi - Box

Tan (36)
H

Unit
Power Supply
208-230 /60/1 or
265-277/60/1

R

LS1

White

E1

NOTE 1
Black/
White

Black/
White

R C Y1 O G L S X2 X1 W1

MV

NOTE 3
AQ

Terminal Board

NOTE 2

Legend
Legend
Relay ContactsN.O., N.C.

Switch - High pressure
Switch - Low pressure

T

Thermistor
P

1

Relay coil

3
2

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

Polarized connector

Wire nut
L1

Condensate Overflow
Field wire lug
Ground

AQ – Aquastat
CC – Compressor Contactor
CO – Condensate Overflow
DT – Damper Terminal Block
E1 – Electric Heat Relay
EH – Electric Heat Contactor
ES – Emergency Shutdown
FS – Freeze Sensing Device
HP – High Pressure Switch
LP – Low Pressure Switch
LS – Loadshed
MV – Motorized Valve
NS – Night Setback
RB – Blower Power Relay
RV – Reversing Valve Coil
SW1 – DIP Switch #1

Notes:
1 - Requires common connection or24 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 for208V operation.

97P786-04

23

6/10/08

Console Unit – Wiring Schematic 208-230-265/60/1
FX10 – with Electric Heat

97PXXX -XX

ENVISION CONSOLE INSTALLATION MANUAL

Wiring Schematic
FX10 - EH

208-230-265/60/1
Compressor

Blue

S
PSC
Fan
Motor

Fan Speed
Switch

Blk

T2

T1
L1

L2

G

Handi - Box

T2

T1

L2

L1

CC

EHC

Red

High

Blk

White

White

L

Red
Tan

LS2

LS1

Cap
H

Ground
Lug

R

Brn/Wht

Grn
Brn

Unit
Power Supply
208-230/60/1 or
265-277/60/1

C

Blu

Low

Black
TAN
White

RB

Red
Black

BLUE

Black

Blue 240V
277V

Black

NOTE 1

Black(121)

Black(6)

Red (120)

Yellow (35)

Black(515)

Black (131)

Black (34)

Red 208V

Yellow (33)

Transformer
Blk/Wht (36)

PB1
Molex
Plug

Green (37)

Blk/Wht

L1
L2

FS

R
24V COM

Brown (2)

25

T White (5)
Wht/Blu (6)

26

T

DA

C
Alarm

AI5
+

27

Blk/Red (9)

29

AI2
+

32
Blu/Wht (10) 33
34

SS

39
40

AI Com
AIC
Room Sensor

J2

RS
Sensor Com
DF/AP
Gry/Wht (14)

TO

Black (6)
LC1

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

LC2
Black (111)

Yellow (21)

42

D05

11

D04

10

Black (310 )

9

Yellow (9)

PWM1
J10

24VAC Com

43

DI12

44

DI11

45
46

DI10
DI9

47

DI8

48

DI7

Johnson FX-10

NOTE 2

L1

Gray (26 )

Black (22)

49

Violet (23)
Red (24 )

50

J9

51

Black (6)

5

Black (5)

4

Blue (4)

HP
CC
Blk/Wht

DI6
DI5
DI4

Blue (27)

ES

Pink (28 )

54

Blk/Wht (29)
Orange (30)

55

DI2
9VDC

OS

56

DI1

LP

RV

Orange (7)

DI 3/4 /5/6/ Com

52
53

Blue (32)

Blk

White

Orange

D02

CP/FP

7

6

Black(31)

L2

Black (111 )

8
D03

Black (310)
PB2

Black
(12)

PWM2

A15

SC
Temp Occ

13
12

PWM2 Com

41

Yellow (16)

15

A11
A13
A23

Setpoint Shift

Black (1)

14
D06

A31

5VDC

A32

38

A22

Y1

LED

A21

Comp

AI1
+

37

A35

Org/Wht (12)

O

A25

Rev Valve

Yellow

Yellow

16
D07

5VDC

35
36

A12

Org/Bck (11)

G

18

A33

X2
Fan

D08

A34

NOTE 4

A24

X1
Acc2

A14

31

Acc 1

19

17

AI6
+

30

D09

MEHS

Red (20)

AI4
+

28

NOTE 3

L

AI3
+

24

GROUND

CO

20

5VDC
24VAC Com

NOTE 5
TB
24VAC

11 K

Brown (1)

J8

24VAC

Molex
Plug

23

DI3

D01

3

Gray (3)

2

Black (2 )

RB

Blk

EHC

1

J7

Legend
Factory low voltage wiring
Factory line voltage wiring
Field low voltage wiring
Field line voltage wiring
Field Zone Sensor Wiring
Internal junction

T

Switch - High pressure

Thermistor - Johnson Control

Open Jumper

Field wire lug

Closed Jumper

1

Wire nut

Polarized connector
P

3

Relay coil

Switch - Low pressure

2

Quick connect terminal

Relay ContactsN.O., N.C.

Condensate Overflow
L1

Ground

CC - Compressor Contactor
CO - Condensate Overflow
CP/FP - Compressor Proving/Fan Proving
DA - Discharge Air Temperature
DF/AP - Dirty Filter/Air Proving
EHC - Electric Heat Contactor
EHR - Electric Heat Relay
ES - Emergency Shutdown
FS - Freeze Sensing Device
HP - High Pressure Switch
LP - Low Pressure Switch
MEHS- Manual EH Switch
OS - Occupied Switch
RB - Blower Power Replay
RV - Reversing Valve Coil
TB - Terminal Block

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

24

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls
Control

General Description

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.

Residential and commercial
applications requiring minimal but
reliable controls. Includes Random
Start, High and low pressure
switches and auto changeover
capability.

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 overflow (CO). The
Versatec Control also features Optional
Field servicing LED's for mode, Fault
and diagnostic indication.

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 overflow (CO).

Optional field servicing LED
board for mode, fault and
diagnostic indication

The FX10 microprocessor control is self
contained control featuring LP, LOC,
HP, LWT, and condensate overflow
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.

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 specific projects.

Optional Medium User
Interface (MUI) can be
used as a
field service tool.

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.

Same as FX10 with Johnson
Controls N2 BAS compatibility.

Optional Medium User
Interface (MUI) can be
used as a
field service tool.

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.

Same as FX10 with LonWorks BAS
compatibility.

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.

Same as FX10 with BACnet BAS
compatibility.

Versatec Control

FX10

FX10 w/ N2

FX10 w/ LonWorks

FX10 w/ BACnet

Application

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

Protocol
None

Thermostat Options
Unit Mounted Digital
Dial Thermostat

Remote Mounted
Standard Thermostat
None

Unit Mounted Digital
Dial Thermostat

Remote Mounted
Standard Thermostat

Standalone

Unit Mounted Digital
Dial Sensor
Remote Mounted
Standard Thermostat
Remote Mounted
Sensor

Johnson
Controls
N2 network

Unit Mounted Digital
Dial Sensor
Remote Mounted
Standard Thermostat
Remote Mounted
Sensor

Optional Medium User
Interface (MUI) can be
used as a
field service tool.

LonWorks

Unit Mounted Digital
Dial Sensor
Remote Mounted
Standard Thermostat
Remote Mounted
Sensor

Due to communication speed,
no more than 40 units should
be connected to a single trunk
of the network.

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.

•	
	
•	
	
•	
	
•	
	

25

Optional Medium User Interface (MUI) can be mounted
or used as a
field service tool.

BACnet - MS/
TP
(19,200 Baud
Rate)

Unit Mounted Digital
Dial Sensor
Remote Mounted
Standard Thermostat
Remote Mounted
Sensor

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.

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls
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

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.
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.
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.

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.

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
26

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls
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

Test - Selected timings sped up to facilitate troubleshooting

Normal - Standard timings

SW1 - 2

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

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

SW1 - 3

Commercial - Enables NS features when TA32U02 thermostat is used

Normal - Standard thermostat operation

SW1 - 4

IO Display* - Enables Input/Output display on external LED board

Normal* - Unit status display

SW1 - 5

Configures board for 2-speed compressor without fan

Configures board for 2-speed compressor with fan

Normal Control Timing

Operational Logic

Blower off delay

30 seconds

Mode

Inputs

Fan

Comp

RV

Compressor on delay

10 seconds

Htg

Y

ON

ON

OFF

Short cycle delay

5 minutes

Clg

Y,O

ON

ON

ON

Miniumum compressor on time

2 minutes (except for fault condition)

Fan

G

ON

OFF

OFF

High pressure fault recognition delay

Less than 1 second

low pressure fault recognition delay

30 seconds

Freeze sensing fault recognition delay

30 seconds

Condensate overflow fault recognition delay

30 seconds

Low pressure fault bypass delay

2 minutes

Freeze sensing fault bypass delay

2 minutes

Power on delay

5 minutes

Test Control Timing
Blower off delay

5 seconds

Compressor on delay

2 seconds

Short cycle delay

15 seconds

Miniumum compressor on time

5 seconds (except for fault condition)

High pressure fault recognition delay

Less than 1 second

low pressure fault recognition delay

30 seconds

Freeze sensing fault recognition delay

30 seconds

Condensate overflow fault recognition delay

30 seconds

Low pressure fault bypass delay

0 seconds

Freeze sensing fault bypass delay

0 seconds

Power on delay

15 seconds

Fault off time

5 minutes

Diagnostic Modes
LED

Current Fault Status

Inputs

Outputs

SW1 - #4 On, SW2 On

SW1 - #4 Off, SW2 Off

SW1 - #4 Off, SW2 On

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

HWD

SW2 in the On position

27

Not used

Not used

Off position

On position

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls
Optional FX10 Control

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.

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.

Water Coil Low Temperature (Freeze Sensing) 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 fan, 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
•	 Water Coil Low Temperature (Freeze Sensing)
•	 Condensate overflow sensing
•	 Lockout mode control
•	 Emergency shutdown mode
•	 Random start and short cycle protection

Short Cycle Protection

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.

Allows a minimum compressor “off” time of four minutes
and a minimum “on” time of two minutes.

28

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls
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
Water coil low temperature (freeze sensing) fault........30 seconds
Condensate overflow fault................................................30 seconds
Low pressure fault bypass.................................................... 2 minutes
Water coil low temperature (freeze sensing)
fault bypass........................................................................... 2 minutes
Notes: Refer to Submittal Data SD1981, Application
Guide AGFX10, or BACnet Protocol Implementation 	
Conformance Statement for more information.

Optional FX10 Microprocessor
and BAS Interface

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 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 ECM
fan 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
CO2 levels, contact the factory for application assistance.
The FX10 control has unused analog and digital inputs for
field installed items such as air temperature, water temperature, CO2 or current status switches. The control has
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.

Zone Sensors

The FX10 is a microprocessor based control that not only
monitors and controls the heat pump but also can communicate any of this information back to the building
automation system (BAS). This means that not only does
the control monitor the heat pump at the unit you can also
monitor and control many the features over the BAS. This
clearly puts the FX10 in a class of its own.
The control will enumerate all fault conditions (HP, LP, CO,
LOC, and Water Coil Low Temp (Freeze Sensing)) over a
BAS as well as display them on a medium user interface
(MUI). HP, LP, CO and Water Coil Low Temp (Freeze Sensing) 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.

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.

Standard Features
•	
•	
•	
•	
•	
•	
•	
•	
•	
•	

Anti Short Cycle
High Pressure Protection
Low Pressure Protection
Water Coil Low Temperature (Freeze Sensing)
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 & Connection
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 ECM variable fan speed settings

Other optional network protocol boards that can be added
to the FX10 are:
•	 Johnson Control N2
•	 LonWorks
•	 BACnet
29

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls
	 - MS/TP @ 19,200 Baud rate
	 - Limit devices to 40 on a single trunk line.

Control and Safety Feature Details
Emergency Shutdown
The emergency shutdown mode can be activated by a
command from a facility management system or a closed
contact on BI-2. The default state for the emergency shutdown data point is off. When the emergency shutdown
mode is activated, all outputs will be turned off immediately and will remain off until the emergency shutdown mode
is de-activated. The first time the compressor starts after
the emergency shutdown mode has been de-activated,
there will be a random start delay present.

Lockout Mode
Lockout mode can be activated by any of the following
fault signals: refrigerant system high pressure, refrigerant
system low pressure, water coil low temperature (freeze
sensing), 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 fan 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.

Water Coil Low Temp (Freeze Sensing) Limit (AI-5)
The water coil low temperature (freeze sensing) limit sensor will monitor the liquid refrigerant temperature entering the water coil in the heating mode. If the temperature
drops below the water coil low temperature (freeze sensing) limit trip point for the recognition delay period, the
condition will be recognized as a fault. The water coil low
temperature (freeze sensing) 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 water coil low temperature
(freeze sensing) limit fault condition will be bypassed 2
minutes at normal compressor startup, to allow the refrigeration circuit to stabilize. If the water coil low temperature
(freeze sensing) 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.

High Pressure (BI-11)
The high-pressure switch shall be a normally closed (NC)
switch that monitors the systems refrigerant pressure. If
the input senses the high-pressure switch is open it must
disable the compressor output immediately and count the
fault. The compressor minimum on time does not apply if
the high-pressure switch opens. The compressor will not
restart until the compressor short cycle time delay has
been satisfied.

Low Pressure (BI-3)
The low-pressure switch shall be a normally closed (NC)
switch that monitors the systems refrigerant pressure. The
input shall be checked 15 seconds before compressor start
up to be sure the pressure switch is closed and then ignored
for the first 2 minutes after the compressor output (BO-2) is
enabled. If the switch is open continuously for (30) seconds
during compressor operation the compressor output (BO-2)
will be disabled. The compressor will not restart until the
compressor short cycle time delay has been satisfied.

Condensate Overflow
The condensate overflow sensing circuit will monitor the
condensate level as a resistance input to AI-3. If the condensate water level rises resulting in the input resistance
rising above the set point for the recognition delay period,
the condition will be recognized as a fault. 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.
30

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls
Random Start Delay

in medium speed and will operate in high speed when
the compressor is operating at full capacity.

This delay will be used after every power failure, as well as
the first time the compressor is started after the control
exits the unoccupied mode or the emergency shutdown
mode. The delay should not be less than 1 second and not
longer than 120 seconds. If the control is in test mode the
random start delay will be shortened to 5 seconds.

Thermostat Control Mode
In thermostat mode the compressor will be cycled
based on Y1 and Y2 calls from a room thermostat.
When the control receives a Y1 command (BI-7) from
the thermostat the low capacity compressor output
(BO2) will be enabled and the ECM2 blower will operate in medium speed. When the control receives a Y2
command (BI-8) from the thermostat the full capacity compressor output will be enabled and the ECM2
blower will operate in high speed. During the heating
cycle the reversing valve will be commanded into the
off position.

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.

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.

Compressor Short Cycle Delay Time

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. During low capacity
compressor operation the ECM2 blower will operate
in medium speed and will operate in high speed when
the compressor is operating at full capacity.

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.

Thermostat Control Mode
In thermostat mode the compressor will be cycled
based on Y1 and Y2 calls from a room thermostat.
When the control receives a Y1 command (BI-7) from
the thermostat the low capacity compressor output
(BO2) will be enabled and the ECM2 blower will operate in medium speed. When the control receives a Y2
command (BI-8) from the thermostat the full capacity compressor output will be enabled and the ECM2
blower will operate in high speed. During the cooling
cycle the reversing valve will be commanded into the
“ON” position.

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. During low capacity
compressor operation the ECM2 blower will operate

31

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls
ECM2 Blower Operation

Inputs & Outputs Configuration

Fan speeds will be selected through the user interface or
the facility management system. There will be a total of 12
speeds selectable with only three being selected at any
one time. The lowest numbered speed selection set to ON
will select the low-speed fan setting, the middle selection
set to ON will select the medium-speed fan setting and
the highest selection set to ON will select the high-speed
fan setting. If all selections are set to OFF the software
shall select speed setting 10 for low-speed, 11 for mediumspeed, and will select speed setting 12 for high speed. If
only one selection is set to ON, that selection will set the
low-speed fan setting, the medium-speed setting will be 11,
and the high-speed setting will be speed 12. The maximum
low-speed setting will be speed 10 and the minimum highspeed setting will be speed 3. In addition there is a low limit
setting in the software to prevent the ECM2 fan speed from
being set below acceptable limits for each unit size.

Field Selectable Options

ECM2 Fan air flow “Soft Switch Settings”
A set of 12 “soft switches” accessible through the user
interface or building automation system are used to select
the three fan speed settings for the ECM2 fan motor.
The 12 soft switches work in exactly the same way as the
hardware switches used on the Premier control (Refer to
Fan Performance Data - ECM2 Motor for proper settings).
No more than three soft switches may be set to the “ON”
position. The first “ON” switch (the lowest number switch)
determines the “low speed fan” setting. The second determines the “medium speed fan” setting, and the third
determines the “high speed fan” setting.

Water Coil Low Temp (Freeze Sensing) Limit Set Point (BI-5)
The water coil low temperature (freeze sensing) limit set
point input allows you to adjust the water coil low temperature (freeze sensing) limit set point (AI-5). When the
jumper is installed on BI-5 (Wire #24) the water coil low
temperature (freeze sensing) limit set point is factory set
for 30°F. When the jumper on BI-5 (Wire #24) is removed
the water coil low temperature (freeze sensing) 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.

Control Accessories
Zone Sensors
•	 TAXXJ02 Room Command Module
•	 TAXXA01 LCD Room Command Module
•	 A99 Sensor
MUI (LCD User interface) for diagnostics
and commissioning.
•	 MUIK1 - Panel Mount, Portable
•	 MUIK2 - Wall Mount

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 fan proving input BI-6 (Fan 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 fan
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.

SINGLE and DUAL STAGE WATER-TO-AIR

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.

32

Input Name
Zone Temp 1
Relative Humidity Input
Condensate Level
Universal Temp Input
Water Coil Low Temperature Limit
Warm/Cool Adjust and Temp Occ

Input
AI 1
AI 2
AI 3
AI 4
AI 5
AI 6

Occupied
Emergency Shutdown
Stage 1 Low Pressure
Network Viewable Input 1
Water Coil Low Temp Limit Set Point
Network Viewable Input 2
Thermostat Y1
Thermostat Y2
Thermostat O
Thermostat G
Stage 1 High Pressure
Compressor Proving
XP10 Expansion Card
Input Name
Unused
Unused
Unused
Unused

BI 1
BI 2
BI 3
BI 4
BI 5
BI 6
BI 7
BI 8
BI 9
B10
BI11
BI12
Input
AI 1
AI 2
AI 3
AI 4

Output Name
Fan Enable
Comp – Low Capacity
Reversing Valve
Comp – Full Capacity
Network Output/EH Output
Alarm
Accessory 1 Output
Accessory 2 Output
Network Controlled Output

Output
BO1
BO2
BO3
BO4
BO5
BO6
BO7
BO8
B09

ECM2 Fan
Network Controlled Output

PWM1
PWM2

Output Name
Unused
Unused
Unused
Unused

Output
BO 1
BO 2
BO 3
BO 4

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls
FX10 User Interface (MUI) Physical Layout 
Power LED

Alarm LED

Up Arrow

Right Arrow

Escape (ESC)
Button

LED 1

Return Button

LED 4

Left Arrow

LED 8

Down Arrow

Alarm LED - Indicates a Lock-Out or a bad Freeze Sensor

LED 3 - On shows Fan running

Power LED - Shows FX processor is operational

LED 4 - On shows Reversing Valve in cool

LED 1 - Flashing shows Compressor 1 running

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
Welcome

Info

Status

Temps

Outputs

Status

Info

Settings

Maint

Alarms

Alm-History

Outputs

Temps

Settings

WFI

Run Mode

Auto

Zone Temp

77.2 ºF

nvoFanStatus

ON

Unit of Measure

F

Envision Series

Eff Occup’y

Occ

Dis Air Temp

51.0 ºF

CmpCmd Status

OFF

Occ Clg Setpt

73.9 ºF

PROFXENV-XX

Y1 Input

OFF

Eff Clg Setpt

70.0°F

Cmp Capacity

OFF

Occ Htg Setpt

69.9 ºF

3/8/07

Y2 Input

OFF

Eff Htg Setpt

66.0°F

Rev Valve

Heat

Unocc Clg

84.0 ºF

G Input

OFF

Water Coil

77.8°F

X1 Output

OFF

Unocc Htg

60.0 ºF

O Input

OFF

Low WC Limit

30.0°F

X2 Output

OFF

DeHumSetpt

0%

SensorSelect

TAXXJ02

Occ Input

Occ

Humidity

56.7 %RH

PWMOut

98%

Temp Occ Inp

OFF

WarmCool AI

14.6

BO5

OFF

WarmCoolAdj

0.2

BO9

OFF

AO2 Output

0%

Condensate

NML

Emg Input

Run

Lo Press

ON

Hi Press

ON

Rndm Tmr

0

BI-4 Input

OFF

33

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls
MUI Menu Navigation for Single Compressor - Envision Water-to-Air
Maint

LOG_IN REQUIRED
User : <= maint =>
Code : 5667

ECM

Maintenance
MinClgSetpt

60.0 ºF

SW1

OFF

MaxHtgSetpt

89.9 ºF

SW2

OFF

W Coil LoLim1

30.0 ºF

SW3

ON

W Coil LoLim2

15.0 ºF

SW4

OFF

TmpOccTime

120 min

SW5

OFF

SW6

OFF

Rev Vlv

Default Heating

Press right arrow key
one time from
Maintenance Menu

BO5 Mode

Network

SW7

ON

CompStrtDly

90 sec

SW8

OFF

SpaceT Offset

-1 ºF

SW9

OFF

DehumEnaDis

Dis

SW10

ON

Acc1 Action

On Comp

SW11

OFF

Acc2 Action

On Fan

SW12

OFF

No more than three
speeds should be “ON”
at one time

Alm-History

Alarms
ALARM SUMMARY
^/High Pressure

Alarm

#Events

Condensate

0

Hi Pressure

0

Low Pressure

0

Low Temp

0

Bad Sensor

0

NOTE: This FX10 application 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 are reset by cycling power, by pressing the “ESC” and
Return
keys simultaneously for a minimum of 15 seconds, or by
commanding the nviAlarmReset over the BAS network.
Test mode is enabled by holding the ‘Esc’ and Down Arrow simultaneously
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.

34

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls
N2
N2 Open
Point Type
ADF
ADF
ADF
ADF
ADF
ADF
ADF
ADF
ADF
ADF
ADF
ADF
ADF
ADF
ADF
ADF
ADF
ADF
ADF
BD
BD
ADF
ADF
ADF
ADF
ADF
ADF
ADF

Point Address
1
2
3
4
5
6
7
8
9
10
11
12
64
54
15
16
17
19
21
9
10
22
23
24
27
32
39
40

Long Name
nciSetpoints.Occupied_Co
nciSetpoints.Standby_Coo
nciSetpoints.Unoccupied_
nciSetpoints.Occupied_He
nciSetpoints.Standby_Hea
nciSetpoints.Unoccupi5#6
nciMinClgSetpt
nciMaxHtgSetpt
nvoSpaceTemp
nvoDischAirTemp
nvoEffClgSetpt
nviSpaceTemp
nvoEffHtgSetpt
nciAux5LevP
nciAux1Temp
nciAux2Temp
nvoUnitStatus.Heat_Outpu
nvoUnitStatus.Cool_Outpu
nvoUnitStatus.Fan_Output
nvoUnitStatus.Mode
nvoUnitStatus.In_Alarm
nciPropBand
nciRemoteSetptSpan
nciRemoteSetptBias
nciTempOffset
nviSetpoint
nvoHtgFrzPro1Tmp
nvoHtgFrzSetpt

ADF

41

nvoAlarms

ADF
ADF
ADF
ADF
ADF
ADI
BD
BD
BD
BD
BD
BD
BD
BD
BD
BD
BD
BD
BD
BD
BD
BD
BD
BD
BD
BD
BD

62
65
63
66
67
2
1
2
4
5
6
7
8
12
13
14
46
18
22
25
24
26
42
41
47
48
44

nvoPWMOut
nvoECMOvrd
nvoHumidity
nviAO2
nvoAO2
nciBypassTime
nvoEffectOccup
nviOccManCmd
nviEmergOverride
nvoFanStatus
nvoAccStatus
nvoLP_WVStatus
nvoAlarmStatus
nviAlarmReset
nviFanSpeedCmd.State
nviComprEnable.State
nviY2HiSpeed.State
nvoRV1Status
nviOccSchedule.Current_s
nvoCompFanProv
nvoDirtyFilter
nvoComp2Status
nviBO5
nviBO9
nvoBO5
nvoBO9
nviDehumEna.State

Point Description
Occupied Cooling Setpoint Input (Read/Write)
Standby Cooling Setpoint Input (Read/Write)
Unoccupied Cooling Setpoint Input (Read/Write)
Occupied Heating Setpoint Input (Read/Write)
Standby Heating Setpoint Input (Read/Write)
Unoccupied Heating Setpoint Input (Read/Write)
Minimum Cooling Setpoint Input (Read/Write)
Maximum Heating Setpoint Input (Read/Write)
Space or Zone Temperature Value (Read Only)
Discharge Air Temp Field Supplied Only (Read Only)
Effective Cooling Setpoint Value (Read Only)
Space or Zone Temperature Value Override(Write)
Effective Heating Setpoint Value (Read Only)
Dehumidification Setpoint (Read/Write)
Heating Freeze Protection Temperature Setpoint Value (Read/Write)
Heating Freeze Protection Temperature Setpoint Value (Read/Write)
1st Stage Compressor Heating Output (Read Only)
1st Stage Compressor Cooling Output (Read Only)
Fan Output (Read Only)
Unit Mode of Operation (Read Only)
Unit Alarm mode (Read Only)
Heating/Cooling Prop Band Input (Read/Write)
Warm/Cool Adjust Span (Read/Write)
Warm/Cool Adjust Offset Value (Read/Write)
Space or Zone Temperature Sensor Calibration Input (Read/Write)
General Setpoint Input (Read/Write)
Heating Freeze Sensing Temperature Value (Read Only)
Heating Freeze Sensing Temperature Setpoint Value (Read Only)
Alarms Enumerated [0=no alarms, 1=condensate alarm, 2=Compressor Hi Discharge
Pressure alarm, 3=Compressor low Suction Pressure alarm, 4=Freeze sensing
alarm, 8=Faulty Freeze Sensor alarm,
9=Loss of Charge]
(Read Only)
ECM PWM Control signal value (Read Only)
ECM PWM Control signal Override (Read/Write)
Space Humidity value (Read Only)
Spare PWM Output AO2 Command (Write)
Spare PWM Output AO2 Value (Read Only)
Temporary Occupancy Time Period Input (Read/Write)
Effective Occupancy State (Read Only)
Occupancy Override Command Input (Read/Write)
Emergency Override Input (Read/Write)
Fan Output Status (Read Only)
Accessory 2 Output Status (Read Only)
Accessory 1 Output Status (Read Only)
Alarm Output Status (Read Only)
Alarm Reset Input (Read/Write)
Network equivelant of a thermostatic 'G' call. (Write)
Network equivelant of a thermostatic 'Y1' call. (Write)
Network equivelant of a thermostatic 'Y2' call. (Write)
Reversing Valve Output Status (Read Only)
Occupancy Supervisory Scheduler Command Input (Read/Write)
Compressor/Fan Proving Switch Status (Read Only)
Dirty Filter Switch Status (Read Only)
Compressor Hi Capacity Command Status (Read Only)
Command for output BO5 used for Emg Heat-Interlocked with Fan DP9Read/Write)
Command for output BO9(Read/Write)
Value output for BO5 used for Emg Heat (Read Only)
Value output for BO9 (Read Only)
Dehumidification command-like a Humidistat (Read/Write)

35

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls
LonWorks
LonWorks
LonWorks Name

SNVT Type

SNVT Index

nciSetpoints

SNVT_temp_setpt

106

nciMinClgSetpt
nciMaxHtgSetpt
nvoSpaceTemp
nvoDischAirTemp
nvoEffClgSetpt
nviSpaceTemp
nvoEffHtgSetpt
nciAux5LevP
nciAux1Temp
nciAux2Temp

SNVT_temp_p
SNVT_temp_p
SNVT_temp_p
SNVT_temp_p
SNVT_temp_p
SNVT_temp_p
SNVT_temp_p
SNVT_lev_percent
SNVT_temp_p
SNVT_temp_p

105
105
105
105
105
105
105
81
105
105

nvoUnitStatus

SNVT_hvac_type

112

nciPropBand
nciRemoteSetptMin
nciRemoteSetptMax
nciTempOffset
nviSetpoint
nvoHtgFrzPro1Tmp
nvoHtgFrzSetpt

SNVT_temp_diff_p
SNVT_temp_diff_p
SNVT_temp_diff_p
SNVT_temp_diff_p
SNVT_temp_p
SNVT_temp_p
SNVT_temp_p

147
147
147
147
105
105
105

nvoAlarms

SNVT_lev_cont

21

nvoPWMOut
SNVT_volt
nvoECMOvrd
SNVT_volt
nvoHumidity
SNVT_volt
nviAO2
SNVT_lev_percent
nvoAO2
SNVT_lev_percent
nciBypassTime
SNVT_time_min
nvoEffectOccup
SNVT_occupancy
nviOccManCmd
SNVT_occupancy
nviEmergOverride
SNVT_hvac_emerg
nvoFanStatus
SNVT_lev_disc
nvoAccStatus
SNVT_lev_disc
nvoLP_WVStatus
SNVT_lev_disc
nvoAlarmStatus
SNVT_lev_disc
nviAlarmReset
SNVT_lev_disc
nviFanSpeedCmd.StateSNVT_switch
nviComprEnable.State SNVT_switch
nviComprEnable.State SNVT_switch
nvoRV1Status
SNVT_lev_disc
nviOccSchedule
SNVT_tod_event
nvoCompFanProv
SNVT_lev_disc
nvoDirtyFilter
SNVT_lev_disc
nvoComp2Status
SNVT_lev_disc
nviBO5
SNVT_lev_disc
nviBO9
SNVT_lev_disc
nvoBO5
SNVT_lev_disc
nvoBO9
SNVT_lev_disc
nviDehumEna.State
SNVT_lev_disc

44
44
44
81
81
123
109
109
103
22
22
22
22
22
95
95
95
22
128
22
22
22
22
22
22
22
22

Point Description
SCPT Reference

SCPTsetPnts

SCPT Index

UCPT Index

60

4
3

147
148

177
98
97
11

SCPTbypassTime

34

36

Occupied Cooling Setpoint Input (Read/Write)
Standby Cooling Setpoint Input (Read/Write)
Unoccupied Cooling Setpoint Input (Read/Write)
Occupied Heating Setpoint Input (Read/Write)
Standby Heating Setpoint Input (Read/Write)
Unoccupied Heating Setpoint Input (Read/Write)
Minimum Cooling Setpoint Input (Read/Write)
Maximum Heating Setpoint Input (Read/Write)
Space or Zone Temperature Value (Read Only)
Discharge Air Temp Field Supplied Only (Read Only)
Effective Cooling Setpoint Value (Read Only)
Space or Zone Temperature Value Override(Write)
Effective Heating Setpoint Value (Read Only)
Dehumidification Setpoint (Read/Write)
Heating Freeze Protection Temperature Setpoint Value (Read/Write)
Heating Freeze Protection Temperature Setpoint Value (Read/Write)
1st Stage Compressor Heating Output (Read Only)
1st Stage Compressor Cooling Output (Read Only)
Fan Output (Read Only)
Unit Mode of Operation (Read Only)
Unit Alarm mode (Read Only)
Heating/Cooling Prop Band Input (Read/Write)
Warm/Cool Adjust Span (Read/Write)
Warm/Cool Adjust Offset Value (Read/Write)
Space or Zone Temperature Sensor Calibration Input (Read/Write)
General Setpoint Input (Read/Write)
Heating Freeze Sensing Temperature Value (Read Only)
Heating Freeze Sensing Temperature Setpoint Value (Read Only)
Alarms Enumerated [0=no alarms, 1=condensate alarm, 2=Compressor Hi Discharge
Pressure alarm, 3=Compressor low Suction Pressure alarm, 4=Freeze sensing
alarm, 8=Faulty Freeze Sensor alarm,
9=Loss of Charge]
(Read Only)
ECM PWM Control signal value (Read Only)
ECM PWM Control signal Override (Read/Write)
Space Humidity value (Read Only)
Spare PWM Output AO2 Command (Write)
Spare PWM Output AO2 Value (Read Only)
Temporary Occupancy Time Period Input (Read/Write)
Effective Occupancy State (Read Only)
Occupancy Override Command Input (Read/Write)
Emergency Override Input (Read/Write)
Fan Output Status (Read Only)
Accessory 2 Output Status (Read Only)
Accessory 1 Output Status (Read Only)
Alarm Output Status (Read Only)
Alarm Reset Input (Read/Write)
Network equivelant of a thermostatic 'G' call. (Write)
Network equivelant of a thermostatic 'Y1' call. (Write)
Network equivelant of a thermostatic 'Y2' call. (Write)
Reversing Valve Output Status (Read Only)
Occupancy Supervisory Scheduler Command Input (Read/Write)
Compressor/Fan Proving Switch Status (Read Only)
Dirty Filter Switch Status (Read Only)
Compressor Hi Capacity Command Status (Read Only)
Command for output BO5 used for Emg Heat-Interlocked with Fan DP9Read/Write)
Command for output BO9(Read/Write)
Value output for BO5 used for Emg Heat (Read Only)
Value output for BO9 (Read Only)
Dehumidification command-like a Humidistat (Read/Write)

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls
BACNet
Object Type
Analog Value

Object Identifier
Type Enumeration
2

BACnet

Property
Full Reference
Instance
Name
Enumeration
1
Present_Value
85
WFI##########.Occupied Cool.Present_Value

Analog Value
Analog Value

2
2

2
3

Present_Value
Present_Value

85
85

WFI##########.Unoccupied Cool.Present_Value
WFI##########.Occupied Heat.Present_Value

Analog Value

2

4

Present_Value

85

WFI##########.Unoccupied Heat.Present_Value

Analog Input
Analog Input
Analog Input
Analog Output
Analog Input
Analog Value
Analog Value

0
0
0
1
0
2
2

1
2
3
4
4
9
10

Present_Value
Present_Value
Present_Value
Present_Value
Present_Value
Present_Value
Present_Value

85
85
85
85
85
85
85

WFI##########.Space Temp.Present_Value
WFI##########.Discharge Air Temp.Present_Value
WFI##########.Effective Clg Setpt.Present_Value
WFI##########.Space temp Ovrd.Present_Value
WFI##########.Effective Htg Setpt.Present_Value
WFI##########.Dehumidify Setpt.Present_Value
WFI##########.Low Temp Limit Adj.Present_Value

Multistate Input

13

2

Present_Value

85

WFI##########.Mode.Present_Value

Analog Value
Analog Value
Analog Value
Analog Output
Analog Input
Analog Input

2
2
2
1
0
0

6
7
8
1
6
7

Present_Value
Present_Value
Present_Value
Present_Value
Present_Value
Present_Value

85
85
85
85
85
85

WFI##########.Remote Setpt Span.Present_Value
WFI##########.Remote Setpt Bias.Present_Value
WFI##########.Space Temp Offset.Present_Value
WFI##########.Space Setpoint.Present_Value
WFI##########.Water Coil Temp.Present_Value
WFI##########.Low Temp Limit.Present_Value

Analog Input

0

9

Present_Value

85

WFI##########.Alarms Enumerated.Present_Value

Analog Input
Analog Output
Analog Input
Analog Output
Analog Input
Analog Value
Multistate Input
Multistate Output
Multistate Output
Binary Input
Binary Input
Binary Input
Binary Input
Multistate Output
Multistate Output
Multistate Output
Multistate Output
Binary Input

0
1
0
1
0
2
13
14
14
3
3
3
3
14
14
14
14
3

8
2
5
3
10
5
1
1
6
1
6
5
8
7
2
3
3
4

Present_Value
Present_Value
Present_Value
Present_Value
Present_Value
Present_Value
Present_Value
Present_Value
Present_Value
Present_Value
Present_Value
Present_Value
Present_Value
Present_Value
Present_Value
Present_Value
Present_Value
Present_Value

85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85

WFI##########.ECM Cmd Output.Present_Value
WFI##########.ECM Fan Ovrd.Present_Value
WFI##########.Space Humidity.Present_Value
WFI##########.AO2 Override.Present_Value
WFI##########.AO2 Value.Present_Value
WFI##########.Temporary Occ Time.Present_Value
WFI##########.Effective Occupancy.Present_Value
WFI##########.Occupancy Command.Present_Value
WFI##########.Emergency Override.Present_Value
WFI##########.Fan Cmd Status.Present_Value
WFI##########.Accessory 2 Output.Present_Value
WFI##########.Accessory 1 Output.Present_Value
WFI##########.Alarm Status.Present_Value
WFI##########.Alarm Reset.Present_Value
WFI##########.Fan Command (G).Present_Value
WFI##########.Compressor Cmd (Y1).Present_Value
WFI##########.Compressor Cmd (Y2).Present_Value
WFI##########.Reversing Valve.Present_Value

Binary Input
Binary Input
Multistate Output
Multistate Output
Binary Input
Binary Input
Multistate Output

3
3
14
14
3
3
14

7
3
8
9
9
10
10

Present_Value
Present_Value
Present_Value
Present_Value
Present_Value
Present_Value
Present_Value

85
85
85
85
85
85
85

WFI##########.Dirty Filter (BI-12).Present_Value
WFI##########.Comp Hi Capacity Cmd.Present_Value
WFI##########.Emergency Heat BO5.Present_Value
WFI##########.BO9.Present_Value
WFI##########.BO5 Output.Present_Value
WFI##########.BO9 Output.Present_Value
WFI##########.Dehum Cmd.Present_Value

37

Point Description
Occupied Cooling Setpoint Input (Read/Write)
Standby Cooling Setpoint Input (Read/Write)
Unoccupied Cooling Setpoint Input (Read/Write)
Occupied Heating Setpoint Input (Read/Write)
Standby Heating Setpoint Input (Read/Write)
Unoccupied Heating Setpoint Input (Read/Write)
Minimum Cooling Setpoint Input (Read/Write)
Maximum Heating Setpoint Input (Read/Write)
Space or Zone Temperature Value (Read Only)
Discharge Air Temp Field Supplied Only (Read Only)
Effective Cooling Setpoint Value (Read Only)
Space or Zone Temperature Value Override(Write)
Effective Heating Setpoint Value (Read Only)
Dehumidification Setpoint (Read/Write)
Heating Freeze Protection Temperature Setpoint Value (Read/Write)
Heating Freeze Protection Temperature Setpoint Value (Read/Write)
1st Stage Compressor Heating Output (Read Only)
1st Stage Compressor Cooling Output (Read Only)
Fan Output (Read Only)
Unit Mode of Operation (Read Only)
Unit Alarm mode (Read Only)
Heating/Cooling Prop Band Input (Read/Write)
Warm/Cool Adjust Span (Read/Write)
Warm/Cool Adjust Offset Value (Read/Write)
Space or Zone Temperature Sensor Calibration Input (Read/Write)
General Setpoint Input (Read/Write)
Heating Freeze Sensing Temperature Value (Read Only)
Heating Freeze Sensing Temperature Setpoint Value (Read Only)
Alarms Enumerated [0=no alarms, 1=condensate alarm, 2=Compressor Hi Discharge
Pressure alarm, 3=Compressor low Suction Pressure alarm, 4=Freeze sensing
alarm, 8=Faulty Freeze Sensor alarm,
9=Loss of Charge]
(Read Only)
ECM PWM Control signal value (Read Only)
ECM PWM Control signal Override (Read/Write)
Space Humidity value (Read Only)
Spare PWM Output AO2 Command (Write)
Spare PWM Output AO2 Value (Read Only)
Temporary Occupancy Time Period Input (Read/Write)
Effective Occupancy State (Read Only)
Occupancy Override Command Input (Read/Write)
Emergency Override Input (Read/Write)
Fan Output Status (Read Only)
Accessory 2 Output Status (Read Only)
Accessory 1 Output Status (Read Only)
Alarm Output Status (Read Only)
Alarm Reset Input (Read/Write)
Network equivelant of a thermostatic 'G' call. (Write)
Network equivelant of a thermostatic 'Y1' call. (Write)
Network equivelant of a thermostatic 'Y2' call. (Write)
Reversing Valve Output Status (Read Only)
Occupancy Supervisory Scheduler Command Input (Read/Write)
Compressor/Fan Proving Switch Status (Read Only)
Dirty Filter Switch Status (Read Only)
Compressor Hi Capacity Command Status (Read Only)
Command for output BO5 used for Emg Heat-Interlocked with Fan DP9Read/Write)
Command for output BO9(Read/Write)
Value output for BO5 used for Emg Heat (Read Only)
Value output for BO9 (Read Only)
Dehumidification command-like a Humidistat (Read/Write)

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls
BACnet Variables
The variables will be listed with the point type and instance
preceding the variable name.

Analog Input (Type 0)
0:1	
	
0:2	
	
	
0:3	
	
0:4	
	
0:5	
	
0:6	
	
	
0:7	
	
	
0:8	
	
	
0:9	
	
	
	
	
	
0:10	
	

Space Temp
[Read only, shows the space temperature]
Discharge Air Temp
[Read only, field mounted sensor unless supplied 		
as a factory special]
Effective Clg Setpt
[Read only, shows the active cooling setpoint]
Effective Htg Setpt
[Read only, shows the active heating setpoint]
Space Humidity
[Read]
Water Coil Temp
[Read, shows the refrigerant temperature at its
coldest, for predictive freeze condition detection]
Low Temp Limit
[Read, shows the water coil low temperature (freeze
sensing) limit that will result in unit shutdown.]
ECM Cmd Output
[Read, shows the commanded speed (0-100%) of
the ECM Blower]
Alarms Enumerated
[Read only, 0=no alarms, 1=condensate alarm,
2=Compressor Hi Discharge Pressure alarm,
3=Compressor low Suction Pressure alarm,
4=Freeze sensing alarm, 8=Faulty Freeze	
Sensor
alarm, 9=Loss of Charge]
AO2 Value
[Read, shows the output value (0-100%) of AO2]

Analog Output (Type 1)
1:1	
	
	
	
1:2	
	
	
	
1:3	
	
	
	
1:4	
	
	
	
	
	

Space Setpoint
[Write, Raise and lower the heating and cooling
setpoints from a single command point(volatile,
reverts to ‘uncommanded’ after power outage).]
ECM Fan Ovrd
[Write, allows network direct control of the ECM
blower speed (volatile, reverts to ‘uncommanded’
after power outage)]
AO2 Override
[Write, allows network direct control of the Analog 	
Output 2, volatile, reverts to ‘uncommanded’ after
power outage)]
Space temp Ovrd
[Write, allows the network to send space
temperature values to the heat pump controller,
volatile, these will supersede any temperature 		
sensor connected to the space temperature Analog
Input.]

Analog Value (Type 2)
2:1	
	
2:2	
	
2:3	
	
2:4 	
	
2:5	
	
	
	
2:6	
	
	
	
2:7	
	
	
	
2:8	
	
	
2:9	
	
	
2:10	
	
	

Occupied Cool
[Write, Cooling setpoint in Occupied mode]
Unoccupied Cool
[Write, Cooling setpoint in Unoccupied mode]
Occupied Heat
[Write, Heating setpoint in Occupied mode]
Unoccupied Heat
[Write, Heating setpoint in Unoccupied mode]
Temporary Occ Time
[Write, set the duration of the temporary occupancy
timer which is initiated by pressing the button on the
zone sensor]
Remote Setpt Span
[Write, sets the offset range that the setpoint knob
on the zone sensor may apply to the effective Htg/
Clg setpoints]
Remote Setpt Bias
[Write, biases the entire readjust range of the
remote setpoint adjust to allow zeroing from the
network.]
Space Temp Offset
[Write, Adds an offset to the Space Temp value for
calibration]
Dehumidify Setpt
[Write, sets the humidity value that will cause the
heat pump to enter passive dehumidification]
Low Temp Limit Adj
[Write, sets the water coil low temperature (freeze
sensing) limit for shutdown]

Binary Input (Type 3)
3:1	
	
	
3:2	
	
	
3:3	
	
	
	
3:4	
	
	
	
3:5	
	
	
3:8	
	
	

38

Fan Cmd Status
[Read, show the commanded condition of the Fan
Output,Inactive=Off, Active=On]
Comp Cmd Status
[Read, show the commanded condition of the
Compressor Output, Inactive=Off, Active=On]
Comp Hi Capacity Cmd
[Read, show the commanded condition of the ‘Hi
Capacity’ Compressor control, Inactive=Off,
Active=On.]
Reversing Valve
[Read, show the commanded condition of the	
Reversing Valve Output, Inactive =Heating,
Active =Cooling]
Accessory 1 Output
[Read, Shows the commanded value of the X1
(Accessory
Alarm Status
[Read, shows the in alarm/out of alarm status,
Inactive=Off, Active=On]

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls
BACnet Variables
3:9		
	
	
3:10	
	
	

BO5 Output	
[Read, shows the BO5 (electric heat) output value,
Inactive=Off, Active=On]
BO9 Output
[Read, shows the BO9 output value, Inactive=Off,
Active=On]

Multistate Input (Type 13)
13:1	
	
	
	
13:2	
	
	

Effective Occupancy
[Read, show the prevailing occupancy status of
the heatpump1=Occupied, 2=Unoccupied,
3=Bypass, 255=Invalid]
Mode Status
[Read, Shows unit status as Auto or Shutdown,
1=Auto, 7=Shutdown]

Multistate Output (Type 14)
14:1	
	
	
	
14:2	
	
	
14:3	
	
	
14:4	
	
	
14:5	
	
	
14:6	
	
	
14:7	
	
	
	
	
	
14:8	
	
	
	
14:9	
	
	
14:10 	

Occupancy Command
[Write, Control the occupancy mode of the
heatpump. 1=Occupied, 2=Unoccupied, 3=Bypass,
255=Invalid]
Fan Command (G)
[Write, allows a network command equivalent of
a thermostatic ‘G’ call]
Compressor Cmd (Y1)
[Write, allows a network command equivalent of a
thermostatic ‘Y1’ call]
Compressor Cmd (Y2)
[Write, allows a network command equivalent of a
thermostatic ‘Y2’ call]
Reversing Vlv Cmd (O)
[Write, allows a network command equivalent of a
thermostatic ‘O’ call]
Emergency Overide
[Write, provide rapid shutdown of the heatpump
for fire,etc. 1=Normal, 5=Shutdown]
Alarm Reset
[Write, Reset lock-out ‘manual reset’ alarms. Alarm
conditions must be cleared before a reset can
succeed. This variable should be commanded
‘On’ for 20 seconds, then returned to the ‘Off’
condition. 1=Off, 2=On]
Emergency Heat BO5
[Write, allows a network command for emergency
heat, also allows the network to stop automatic
emergency heat.]
BO9
[Write, allow network control of spare output BO9.
1 = Off, 2=On.]
Dehum Cmd

39

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.

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.

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

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

40

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.

41

ENVISION CONSOLE INSTALLATION MANUAL

Unit Operating Parameters
Single Speed Models
Cooling

Entering
Water Temp
°F

Water Flow
GPM/Ton

Suction
Pressure
PSIG

Discharge
Pressure
PSIG

09-18
Superheat

09-18
Subcooling

Water Temp
Rise °F

Air Temp
Drop °F DB

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

50

70

90

Entering
Water Temp
°F

Heating
Water Flow
GPM/Ton

Suction
Pressure
PSIG

Discharge
Pressure
PSIG

09-18
Superheat

09-18
Subcooling

Water
Temp Drop
°F

Air Temp
Rise °F DB

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

30

50

70

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.

Unit Operating Limits
Operating Limits

Cooling

Heating

(°F)

(°C)

(°F)

(°C)

45
80
100
50
80.6/66.2
110/83

7.2
26.7
37.8
10.0
27/19
43/28.3

45
70
85
40
68
80

7.2
21.1
29.4
4.4
20.0
26.7

30
50-110
120

-1.1
10-43.3
48.9

20
30-70
90

-6.7
-1.1
32.2

Air Limits
Min. Ambient Air
Rated Ambient Air
Max. Ambient Air
Min. Entering Air
Rated Entering Air db/wb
Max. Entering Air db/wb

Water Limits
Min. Entering Water
Normal Entering Water
Max. Entering Water
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.

42

ENVISION CONSOLE INSTALLATION MANUAL

DEALER:
PHONE #:

DATE:

PROBLEM:
MODEL #:

Startup/Troubleshooting Form

SERIAL #:

COOLING CYCLE ANALYSIS
PSI =

SAT °F

°F
Unit Amp Draw:

°F

AIR
COIL

°F

Loop:

Open
Closed

Line Voltage:

SUCTION

COMPRESSOR
REVERSING
VALVE

COAX

EXPANSION
VALVE

SOURCE

°F

DISCHARGE

°F

LIQUID LINE

SAT °F

PSI =

°F

°F

PSI

PSI

Superheat
BRINE IN

Subcooling

BRINE OUT

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
PSI =

SAT °F

°F
Unit Amp Draw:

°F

AIR
COIL

°F

Loop:

Open
Closed

Line Voltage:

SUCTION

COMPRESSOR
REVERSING
VALVE

COAX

EXPANSION
VALVE

SOURCE

°F

DISCHARGE

°F

LIQUID LINE

PSI =

°F

°F

PSI

PSI

SAT °F

Superheat
BRINE IN

BRINE OUT

43

Subcooling

WFS37 10/07

ENVISION CONSOLE INSTALLATION MANUAL

Pressure Drop
Model

09

12

15

18

GPM

Pressure Drop (psi)
30°F

50°F

70°F

90°F

110°F

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
3/4/08

44

ENVISION CONSOLE INSTALLATION MANUAL

Preventive Maintenance
Water Coil Maintenance

Condensate Drain

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.

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.

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.

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.

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.

Replacement Procedures
Obtaining Parts

In-Warranty Material Return

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.

Material may not be returned except by permission of authorized warranty personnel. Contact your local distributor
for warranty return authorization and assistance.

45

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

7;$'

  &

Product: 	
Type:		
Size: 		
Document:	

Envision Series Console
Geothermal/Water Source Heat Pumps
0.75-1.5 Ton
Installation Manual

WaterFurnace International, Inc., 9000 Conservation Way, Fort Wayne, IN 46809-9794. WaterFurnace has a policy of continual product research and development and reserves
the right to change design and specifications without notice. © 2008 WaterFurnace International Inc.



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Producer                        : Adobe PDF Library 8.0
Trapped                         : False
Page Count                      : 48
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Creator                         : Adobe InDesign CS3 (5.0.3)