Envision2 Compact Installation Manual
COMPACT
Water Source/Geothermal Heat Pump
• R-410A Refrigerant
• Commercial 0.75-6 Ton
Installation Information
Water Piping Connectionss
Hot Water Connections
Electrical
Startup Procedures
Troubleshooting
Preventive Maintenance
IM1022ANA 05/14
ENVISION2 COMPACT INSTALLATION MANUAL
Table of Contents
Model Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
General Installation Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Installing Horizontal Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Hanger Bracket Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Duct System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Water Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Water Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
System Cleaning and Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Open Loop Ground Water Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Hot Water Generator Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Freeze Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Blower Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Wiring Schematics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Unit Startup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Operating Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Reference Calculations and Legend. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Refrigerant Circuit Guideline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Compressor and Thermistor Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Heat of Extraction/Rejection Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Preventive Maintenance and Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Revision Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
ENVISION2 COMPACT INSTALLATION MANUAL
Model Nomenclature
1-2
3
4-6
7
8
9
10
11
12
13
14
15
16
17
18
19
20 21-22 23
NB
V
048
T
L
0
0
0
C
A
N
A
N
1
A
3
0
SS
*
Model Type
NB – Envision2 Compact
Vintage
* - Factory Use Only
Cabinet Configuration
V – Vertical
H - Horizontal
Non-Standard Options
SS – Standard
Drain Pan Option
0 – Composite, No Secondary Connection
1 – Composite, Secondary Connection
2 – Stainless Steel, No Secondary Connection
3 – Stainless Steel, Secondary Connection
Unit Capacity (MBTUH)
Single Speed
009, 012, 015, 018, 024, 030
036, 042, 048, 060, 070
Dual-Capacity
026, 038, 049, 064, 072
Air Coil Option
3 – All-Aluminum, Uncoated
4 – All-Aluminum, AlumiSealTM
Discharge Configuration
T – Top (Vertical)
E – End (Horizontal)
S – Side (Horizontal)
Filter Option
A – MERV 4
B – MERV 13
Return Air Configuration
L – Left
R – Right
Cabinet Option
0 – Unpainted Cabinet, Filter Rail
1 – Painted Cabinet, Filter Rail
2 – Unpainted Cabinet, 4-Sided Filter Rack
3 – Painted Cabinet, 4-Sided Filter Rack
Voltage
0 – 208-230/60/1
2 – 265-277/60/1 (009-038)
3 – 208-230/60/3 (024-072)
4 – 460/60/3 (024-072)
5 – 575/60/3 (PSC Only 042-070)
Electrical Option1
N – None
A – IntelliStart® Only
E – IntelliStart and Disconnect
P – Phase Guard, No Disconnect
B – Phase Guard, Disconnect
D – No Phase Guard, Disconnect
Refrigeration Option
0 – None
2 – HWG Only w/o Pump (Vertical 018-072)
G – Hot Gas Bypass (015-072)
R – Hot Gas Reheat (015-072)
B – Hot Gas Bypass w/Hot Gas Reheat (015-072)
Control Option
A – AuroraTM Base Control (ABC)
E – Aurora UPC DDC Controller
F – Aurora UPC DDC Controller with LON
Blower Options
0 – PSC Blower (Single Speed Only)
1 – Variable Speed ECM Blower (015-072)
2 – High Static Variable Speed ECM Blower
(036, 038, 042, 048, 049)
3 – High Static PSC Blower (024-048)
4 – 5-Speed ECM Blower (015-072)
Water Control Option
N – None
R – Water Flow Regulator
V – 2-Way Valve
B – 2-Way Valve w/ Water Flow Regulator
Water Coil Option
C – Copper
D – Insulated Copper
N – CuproNickel
P – Insulated CuproNickel
Sound Kit Option
A – None
B – Sound Kit
Rev.: 24 April 2014D
Note:
1 - Phase Guard Only Available on 208-230/60/3, 460/60/3, and 575/60/3
4
ENVISION2 COMPACT INSTALLATION MANUAL
General Installation Information
Unit Location
Safety Considerations
Locate the unit in an indoor area that allows for easy
removal of the filter and access panels. Location should
have enough space for service personnel to perform
maintenance or repair. Provide sufficient room to make
water, electrical and duct connection(s). If the unit is
located in a confined space, such as a closet, provisions
must be made for return air to freely enter the space
by means of a louvered door, etc. Any access panel
screws that would be difficult to remove after the unit
is installed should be removed prior to setting the unit.
On horizontal units, allow adequate room below the unit
for a condensate drain trap and do not locate the unit
above supply piping. Care should be taken when units are
located in unconditioned spaces to prevent damage from
frozen water lines and excessive heat that could damage
electrical components.
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.
Installing Vertical Units
Follow all safety codes. Wear safety glasses and work
gloves. Use a quenching cloth for brazing operations and
have a fire extinguisher available.
Prior to setting the unit in place, remove and discard the
compressor hold down shipping bolt located at the front of
the compressor mounting bracket.
Moving and Storage
Vertical units are available in left or right air return
configurations. Top flow vertical units should be mounted
level on a vibration absorbing pad slightly larger than the
base to provide isolation between the unit and the floor.
It is not necessary to anchor the unit to the floor (see
figure below).
Move units in the normal “up” orientation. Horizontal units
may be moved and stored per the information on the
packaging. Do not stack more than three units in total
height. Vertical units may be stored one upon another to
a maximum height of two units. Do not attempt to move
units while stacked. 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.
Vertical Unit Mounting
2 in. PEX Foam
5
ENVISION2 COMPACT INSTALLATION MANUAL
Vertical Dimensional Data
Standard filter rails for
open return applications
Field installed
duct flange
Deluxe filter rack for
ductable return applications
A
A
N
S
R
Air coil
N
Q
P
B
AIR COIL SIDE
AIR COIL SIDE
Q
P
4
G
3
F
ACCESS
PANEL
B
2' (61 cm)
Alternate
Service Access
4
FRONT
FRONT
1.4 in (3.5 cm)
M
G
3
F
1.4 in (3.5 cm)
M
Top View - Right Return
Top View - Left Return
2' (61 cm)
Service Access Left Return
(Right Return opposite side)
Isometric View - Left Return
T
U
W
Air coil
Air coil
ACCESS
PANEL
ACCESS
PANEL
V
C
C
1.6 in (4.1 cm)
Condensate 3/4 in
PVC glue socket
1.6 in (4.1 cm)
H
E
D
5
6
2
8
1
Front View - Right Return
L
J
Power supply
1 in (25.4 mm)
knockout
Condensate
3/4 in PVC
glue socket
Low voltage
1/2" (12.7 mm)
knockout
1.6 in (4.1 cm)
8
7
L
K
1.6 in
(4.1 cm)
5
6
2
8
1
Front View - Left Return
6
E
H
J
ACCESS
PANEL
8
7
L
K L
D
Right View - Right Return
Left View - Left Return
ENVISION2 COMPACT INSTALLATION MANUAL
Vertical Dimensional Data cont.
Water Connections
Overall Cabinet
Vertical
Models
009-012
015-018
024-030
036-038
042-049
060-072
in.
cm.
in.
cm.
in.
cm.
in.
cm.
in.
cm.
in.
cm.
A
B
C
1
2
3
4
D
E
F
G
Width
Depth
Height*
In
Out
22.5
57.2
22.5
57.2
22.5
57.2
25.5
64.8
25.5
64.8
25.5
64.8
22.2
56.4
26.2
66.5
26.2
66.5
31.2
79.2
31.2
79.2
31.2
79.2
30.2
76.7
40.2
102.1
44.2
112.3
44.2
112.3
48.2
122.4
52.2
132.6
2.6
6.6
2.6
6.6
2.6
6.6
2.6
6.6
2.6
6.6
2.6
6.6
7.6
19.3
7.6
19.3
7.6
19.3
7.6
19.3
7.6
19.3
7.6
19.3
5
H
HWG In HWG Out
N/A
N/A
1.4
3.6
1.4
3.6
1.4
3.6
1.4
3.6
1.4
3.6
N/A
N/A
4.4
11.2
4.4
11.2
4.4
11.2
4.4
11.2
4.4
11.2
Condensate
10.8
27.4
10.8
27.4
10.8
27.4
10.8
27.4
10.8
27.4
10.8
27.4
Electrical Knockouts
6
7
8
J
K
L
1/2 in.
1/2 in.
Loop Knockout
1 in. cond
cond
cond
Water
HWG
Low
Low
Power
FPT
Provisions Voltage Voltage Supply
1/2 in.
N/A
9.4
5.4
7.4
12.7 mm
N/A
23.9
13.7
18.8
3/4 in.
0.875
10.1
6.1
8.1
19.1 mm 22.2 mm
25.7
15.5
20.6
3/4 in.
0.875
10.1
6.1
8.1
19.1 mm 22.2 mm
25.7
15.5
20.6
1 in.
0.875
10.1
6.1
8.1
25.4 mm 22.2 mm
25.7
15.5
20.6
1 in.
0.875
10.1
6.1
8.1
25.4 mm 22.2 mm
25.7
15.5
20.6
1 in.
0.875
10.1
6.1
8.1
25.4 mm 22.2 mm
25.7
15.5
20.6
3/16/12
Discharge Connection
**Return Connection
duct flange installed (±0.10 in)
using deluxe filter rack (±0.10 in)
M
N
P
Q
R
S
T
U
V
Filter Rack
Supply
Supply
Return
Return
Width
Width
Depth
Depth
Height
in.
2.2
10.0
10.0
6.1
5.3
9.8
2.0
18.1
14.0
009-012
cm.
5.6
25.4
25.4
15.5
13.5
24.9
5.1
46.0
35.6
in.
2.2
14.0
14.0
6.1
4.5
7.7
2.0
22.1
22.0
015-018
cm.
5.6
35.6
35.6
15.5
11.4
19.6
5.1
56.1
55.9
in.
2.2
14.0
14.0
6.1
4.5
7.7
2.0
22.1
26.1
024-030
cm.
5.6
35.6
35.6
15.5
11.4
19.6
5.1
56.1
66.3
in.
2.2
18.0
18.0
6.6
4.6
6.3
1.6
28.1
26.1
036-038
cm.
5.6
45.7
45.7
16.8
11.7
16.0
4.1
71.4
66.3
in.
2.2
18.0
18.0
6.6
4.6
6.3
1.6
28.1
30.0
042-049
cm.
5.6
45.7
45.7
16.8
11.7
16.0
4.1
71.4
76.2
in.
2.2
18.0
18.0
6.6
5.0
6.4
1.6
28.1
34.0
060-072
cm.
5.6
45.7
45.7
16.8
12.7
16.3
4.1
71.4
86.4
Condensate is 3/4 in. PVC female glue socket and is switchable from side to front.
*Discharge flange is field installed and extends 1 in. (25.4 mm) from top of cabinet.
**Vertical units shipped with standard 2 in. (field adjustable to 1 in.) open application filter rack extending 2.2 in. from
unit and is not suitable for duct connection, for ductable return connection applications, order the deluxe 2 in. (field
adjustable to 1 in.) duct collar/filter rack which extends 3.25 in. from the unit and is suitable for duct connections.
Vertical
Models
W
2.0
5.1
1.9
4.8
1.8
4.6
2.0
5.1
2.0
5.1
2.0
5.1
3/16/12
Vertical Disconnect
When using disconnect, do not use dimension L from
the standard vertical dimensional data. Use dimension
LL from the vertical disconnect dimensional data.
Vertical Models
009-012
015-018
024-030
036-038
042-049
060-064
070-072
Dimensions in inches [cm]
LL
17.8 [45.2]
14.3 [36.3]
15.3 [38.9]
14.3 [36.3]
14.3 [36.3]
14.3 [36.3]
External
Disconnect Located on this
Side for a Right Return
Disconnect
Location
3/16/12
Alternative
Power
Location
Power
Supply
LL
1.8 in.
[4.6 cm]
7
Vertical Shown in
Left Return Configuration
ENVISION2 COMPACT INSTALLATION MANUAL
Horizontal Dimensional Data
1.7 in.
[5.3 cm]
Standard filter rails
1 in. [2.5 cm] knockout
0.5 in. [1.3 cm] knockout
Front
Right Return
1.7 in.
[5.3 cm]
Standard filter rails
K
CP
Left Return
Front
AP
J
E
A
AP
D
AP
RR Front View
CMP
CMP
1.7
1.7
2' (61 cm)
Service Access
Condensate
"X" PVC size
AP
E
Deluxe filter rack option shown
2.3 in. [5.8 cm]
P
N
D
K
Side Discharge
1 in. [2.5 cm]
knockout
LR Front View
L
BLOWER
OUTLET
M C
L
AP
= Alternate Service Panel
BP
= Blower Service Panel
CP
= Control Access Panel
C
M
BLOWER
OUTLET
CMP = Compressor Service Panel
H
2.1 in. [5.3 cm]
A
Right Return
End Discharge
Left Return
End Discharge
N
0.5 in. [1.3 cm]
knockout
K
AP
M
BLOWER
OUTLET
J
BP
M
AP
CMP
L
Left Return Side Discharge
Right Return Side Discharge
Q
P
BLOWER
OUTLET
Front
Front
1 in. [2.5 cm]
knockout
K
J
0.5 in. [1.3 cm]
knockout
CMP
Air Coil
N
1.5 in. [3.8 cm]
1.5 in. [3.8 cm]
L
BP
Deluxe filter rack option shown
P
N
2.3 in.
[5.8 cm]
Legend
2.1 in. [5.3 cm]
A
P
Condensate
"X" PVC size
End Discharge
FILTER RACK
AIR COIL SIDE
FILTER RACK
AIR COIL SIDE
0.5 in. [1.3 cm]
knockout
CP
Side Discharge
End Discharge
H
2' (61 cm)
Service Access
J
T
T
S
S
Air Coil
Q
Deluxe filter
rack option
(shown)
C
FILTER RACK CONNECTION
R
C
R
FILTER RACK CONNECTION
Front
Front
B
B
Right Return Side View
Left Return Side View
8
ENVISION2 COMPACT INSTALLATION MANUAL
Horizontal Dimensional Data cont.
Horizontal
Models
009-012
015-018
024-030
036-038
042-049
060-064
070-072
in.
cm.
in.
cm.
in.
cm.
in.
cm.
in.
cm.
in.
cm.
in.
cm.
Overall Cabinet
A
Width
22.5
57.2
22.5
57.2
22.5
57.2
25.5
64.8
25.5
64.8
25.5
64.8
25.5
64.8
B
Depth
35.0
88.9
42.0
106.7
45.0
114.3
48.0
121.9
53.0
134.6
61.0
154.9
68.0
172.7
C
Height*
17.2
43.7
19.2
48.8
19.2
48.8
21.2
53.8
21.2
53.8
21.2
53.8
21.2
53.8
Water Connections
2
3
E
H
Out
Condensate
6.8
0.8
17.3
2.0
6.8
0.8
17.3
2.0
6.8
0.8
17.3
2.0
6.8
0.8
17.3
2.0
6.8
0.8
17.3
2.0
6.8
0.8
17.3
2.0
6.8
0.8
17.3
2.0
1
D
In
1.8
4.6
1.8
4.6
1.8
4.6
1.8
4.6
1.8
4.6
1.8
4.6
1.8
4.6
Loop
Water FPT
1/2 in.
12.7 mm
3/4 in.
19.05 mm
3/4 in.
19.05 mm
1 in.
25.4 mm
1 in.
25.4 mm
1 in.
25.4 mm
1 in.
25.4 mm
Electrical Knockouts
J
K
1/2 in. cond
1 in. cond
Low Voltage Power Supply
7.1
7.1
18.0
18.0
9.1
7.1
23.1
18.0
9.2
7.1
23.4
18.0
9.2
9.1
23.4
23.1
9.2
9.1
23.4
23.1
9.2
9.1
23.4
23.1
9.2
9.1
23.4
23.1
3/16/12
Discharge Connection
Return Connection
duct flange installed (±0.10 in.)
using deluxe filter rack option (±0.10 in.)
L
M
N
P
Q
R
S
T
Supply Width Supply Depth
Return Depth Return Height
in.
5.9
7.2
9.5
6.0
16.4
14.5
2.0
1.4
009-012
cm.
15.0
18.3
24.1
15.2
41.7
36.8
5.1
3.6
in.
6.7
10.5
9.4
4.9
27.4
16.6
2.0
1.4
015-018
cm.
17.0
26.7
23.9
12.4
69.6
42.2
5.1
3.6
in.
6.7
10.5
9.4
4.9
30.4
16.6
2.0
1.5
024-030
cm.
17.0
26.7
23.9
12.4
77.2
42.2
5.1
3.8
in.
4.9
13.6
13.2
4.6
35.4
18.6
2.3
1.4
036-038
cm.
12.4
34.5
33.5
11.7
89.9
47.2
5.8
3.6
in.
4.9
13.6
13.2
4.6
40.4
18.6
2.3
1.4
042-049
cm.
12.4
34.5
33.5
11.7
102.6
47.2
5.8
3.6
in.
4.9
13.6
13.2
4.6
45.4
18.6
2.3
1.4
060-064
cm.
12.4
34.5
33.5
11.7
115.3
47.2
5.8
3.6
in.
4.9
13.6
13.2
4.6
45.4
18.6
2.3
1.4
070-072
cm.
12.4
34.5
33.5
11.7
115.3
47.2
5.8
3.6
Horizontal units shipped with standard 2 in. (field adjustable to 1 in.) open application filter rack extending 2.2 in. from unit and is
not suitable for duct connection, for ductable return connection applications, order the deluxe 2 in. (field adjustable to 1 in.) filter
rail/filter rack which extends 3.25 in. from the unit and is suitable for duct connections.
Horizontal
Models
PVC Size
X
3/4”
1.9
3/4”
1.9
3/4”
1.9
3/4”
1.9
3/4”
1.9
3/4”
1.9
3/4”
1.9
3/16/12
Horizontal Disconnect
When using disconnect, do not use dimension K from the
standard horizontal dimensional data. Use dimension KK from
the horizontal disconnect dimensional data.
Horizontal Models
009-012
015-018
024-030
036-038
042-049
060-064
070-072
Dimensions in inches [cm]
KK
8.2 [20.8]
9.2 [23.4]
9.2 [23.4]
11.2 [28.4]
10.2 [25.9]
11.2 [28.4]
10.2 [25.9]
Disconnect
Location
Disconnect Located
on this Side for a
Left Return
KK
Power Supply
3/16/12
2.1 in.
[5.3 cm]
9
Horizontal Shown in
Right Return Configuration
ENVISION2 COMPACT INSTALLATION MANUAL
Installing Horizontal Units
be pitched approximately 1/4 in. towards the drain in both
directions to facilitate the removal of condensate. Use only
the bolts provided in the kit to attach hanger brackets. The
use of longer bolts could damage internal parts.
Installing Horizontal Units
Remove and discard the compressor hold down shipping
bolt located at the front of the compressor mounting
bracket prior to setting the unit in place. Horizontal units
are available with side or end discharge.
Some applications require the installation of horizontal
units on an attic floor. In this case, the unit should be set
in a full size secondary drain pan on top of a vibration
absorbing pad. The secondary drain pan prevents possible
condensate overflow or water leakage damage to the
ceiling. The secondary drain pan is usually placed on a
plywood base isolated from the ceiling joists by additional
layers of vibration absorbing material.
NOTE: Horizontal units are normally suspended from a
ceiling by four (009-060 models) or five (070-072 models)
3/8 in. diameter threaded rods. The rods are usually
attached to the unit by hanger bracket kits furnished with
each unit.
Lay out the threaded rods per the Hanger Bracket
Dimensions table. Assemble the hangers to the unit as
shown. Securely tighten the brackets to the unit using the
weld nuts located on the underside of the bottom panel.
When attaching the hanger rods to the bracket, a double
nut is required since vibration could loosen a single nut.
To allow filter access, install hanger brackets as illustrated
in the Hanger Bracket Locations section. The unit should
CAUTION: Do not use rods smaller than 3/8 in.
diameter since they may not be strong enough
to support the unit. The rods must be securely
anchored to the ceiling.
10
ENVISION2 COMPACT INSTALLATION MANUAL
Hanger Bracket Locations
D
Left
Right
H
F
Compressor
Section
E
G
Air Handler
Section
C
B
Air Handler
Section
E
G
D
Compressor
Section
F
H
A
3/8”
Threaded Rod
(not supplied)
Vibration Isolator
Washer
Hex Nuts
(not supplied)
Bolt and
Lockwasher
NOTE: Model sizes 070-072 will be shipped with six (6) hanger brackets. Only five (5) hanger brackets will be used on the unit.
See the above illustration for the fifth hanger bracket location. All other models will use four (4) hanger brackets.
Hanger Bracket Dimensions
Single Speed
Dual Capacity
99S500A04
99S500A04
99S500A04
99S500A04
99S500A04
99S500A04
99S500A03
99S500A04
99S500A03
99S500A04
99S500A04
99S500A03
Model
Vertical
Weight
Horizontal
Weight
171
176
[78]
[80]
171
176
012
[78]
[80]
210
220
015
[95]
[100]
210
220
018
[95]
[100]
280
295
024
[127]
[134]
285
295
030
[129]
[134]
300
305
036
[136]
[138]
365
375
042
[166]
[170]
370
380
048
[168]
[172]
410
420
060
[186]
[191]
445
455
070
[202]
[206]
280
295
026
[127]
[134]
360
375
038
[163]
[170]
370
380
049
[168]
[172]
410
420
064
[186]
[191]
445
455
072
[202]
[206]
Weights are listed in lbs. [kg].
009
Single Speed
in.
cm.
in.
015-018
cm.
in.
024-030
cm.
in.
036
cm.
in.
042-048
cm.
in.
060
cm.
in.
070
cm.
in.
026
cm.
in.
038
cm.
in.
049
cm.
in.
064
cm.
in.
072
cm.
009-012
Weight Distribution
Unit Hanger Dimensions
A
B
C
H
35.7
25.1
21.4
n/a
90.7
63.8
54.4
n/a
42.8
25.1
21.4
n/a
108.7
63.8
54.4
n/a
45.8
25.1
21.4
n/a
116.3
63.8
54.4
n/a
48.8
28.1
24.4
n/a
124.0
71.4
62.0
n/a
53.8
28.1
24.4
n/a
136.7
71.4
62.0
n/a
61.8
28.1
24.4
n/a
157.0
71.4
62.0
n/a
68.8
28.1
24.4
34.0
174.8
71.4
62.0
74.4
45.8
25.1
21.4
n/a
116.3
63.8
54.4
n/a
48.8
28.1
24.4
n/a
124.0
71.4
62.0
n/a
53.8
28.1
24.4
n/a
136.7
71.4
62.0
n/a
61.8
28.1
24.4
n/a
157.0
71.4
62.0
n/a
68.8
28.1
24.4
34.0
174.8
71.4
62.0
74.4
3/16/12
Dual Capacity
Model
Hanger Kit
Part Number
11
Horizontal Weight Distribution
Front
Back
D
E
F
G
32
67
32
45
[15]
[30]
[15]
[20]
32
67
32
45
[15]
[30]
[15]
[20]
65
40
70
35
[29]
[18]
[32]
[16]
65
40
70
35
[29]
[18]
[32]
[16]
75
70
75
20
[34]
[31]
[34]
[13]
75
70
75
30
[34]
[31]
[34]
[13]
85
80
85
40
[39]
[36]
[39]
[18]
115
95
75
60
[52]
[43]
[34]
[27]
120
100
80
65
[54]
[45]
[36]
[29]
120
110
95
80
[54]
[50]
[43]
[36]
135
120
100
85
[61]
[54]
[45]
[39]
75
70
75
50
[34]
[31]
[34]
[13]
115
95
75
60
[52]
[43]
[34]
[27]
120
100
80
65
[54]
[45]
[36]
[29]
120
110
95
80
[54]
[50]
[43]
[36]
135
120
100
85
[61]
[54]
[45]
[39]
3/16/12
ENVISION2 COMPACT INSTALLATION MANUAL
Duct System
An air outlet collar is provided on vertical top flow units
and all horizontal units to facilitate a duct connection.
A flexible connector is recommended for discharge
and return air duct connections on metal duct systems.
Uninsulated duct should be insulated with a minimum of
1-inch duct insulation. Application of the unit to uninsulated
ductwork in an unconditioned space is not recommended
as the unit’s performance will be adversely affected.
The duct system should be sized to handle the design
airflow quietly and efficiently. To maximize sound
attenuation of the unit blower, the supply and return
plenums should include an internal duct liner of fiberglass
or constructed of ductboard for the first few feet. On
systems employing a sheet metal duct system, canvas
connectors should be used between the unit and the
ductwork. If air noise or excessive airflow is a problem, the
blower speed can be changed.
If the unit is connected to existing ductwork, check the duct
system to ensure that it has the capacity to accommodate
the air required for the unit application. If the duct is too
small, as in the replacement of heating only systems, larger
ductwork should be installed. All existing ductwork should
be checked for leaks and repaired if necessary.
Water Piping
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.
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.
Condensate Drain
On vertical units, the internal condensate drain assembly
consists of a drain tube which is connected to the drain
pan, a 3/4 in. PVC female adapter and a flexible connecting
hose. The female adapter may exit either the front or the
side of the cabinet. The adapter should be glued to the
field-installed PVC condensate piping. On vertical units, a
condensate hose is inside all cabinets as a trapping loop;
therefore, an external trap is not necessary.
On horizontal units, a PVC stub or stainless steel tube
is provided for condensate drain piping connection. An
external trap is required (see below). If a vent is necessary,
an open stand pipe may be applied to a tee in the fieldinstalled condensate piping.
Horizontal Drain Connection (Composite Drain Pan)
Unit Pitch for Drain
Vent (if needed)
PVC coupling
1/2'' Pitch
PVC tube stub
1/8 in. per foot
PVC tube stub
1.5 in.
1.5 in.
Drain
12
ENVISION2 COMPACT INSTALLATION MANUAL
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. Hot water generator coils
can likewise become scaled and possibly plugged. In areas
Material
pH
Scaling
Acidity/Alkalinity
Calcium and
Magnesium Carbonate
Hydrogen Sulfide
Corrosion
Iron Fouling
(Biological Growth)
Sulfates
Chlorine
Chlorides
Carbon Dioxide
Ammonia
Ammonia Chloride
Ammonia Nitrate
Ammonia Hydroxide
Ammonia Sulfate
Total Dissolved Solids (TDS)
LSI Index
Iron, FE2+ (Ferrous)
Bacterial Iron Potential
Iron Oxide
Suspended Solids
Erosion
Threshold Velocity
(Fresh Water)
NOTES: Grains = ppm divided by 17
mg/L is equivalent to ppm
with extremely hard water, the owner should be informed
that the heat exchanger may require occasional flushing.
Failure to adhere to the guidelines in the water quality table
could result in loss of warranty.
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.
Copper
7-9
(Total Hardness)
less than 350 ppm
Less than 0.5 ppm (rotten egg
smell appears at 0.5 ppm)
Less than 125 ppm
Less than 0.5 ppm
Less than 20 ppm
Less than 50 ppm
Less than 2 ppm
Less than 0.5 ppm
Less than 0.5 ppm
Less than 0.5 ppm
Less than 0.5 ppm
Less than 1000 ppm
+0.5 to -0.5
90/10 Cupronickel
7-9
(Total Hardness)
less than 350 ppm
316 Stainless Steel
7-9
(Total Hardness)
less than 350 ppm
10 - 50 ppm
Less than 1 ppm
Less than 125 ppm
Less than 0.5 ppm
Less than 125 ppm
10 - 50 ppm
Less than 2 ppm
Less than 0.5 ppm
Less than 0.5 ppm
Less than 0.5 ppm
Less than 0.5 ppm
1000 - 1500 ppm
+0.5 to -0.5
Less than 200 ppm
Less than 0.5 ppm
Less than 300 ppm
10 - 50 ppm
Less than 20 ppm
Less than 0.5 ppm
Less than 0.5 ppm
Less than 0.5 ppm
Less than 0.5 ppm
1000 - 1500 ppm
+0.5 to -0.5
< 0.2 ppm
< 0.2 ppm
< 0.2 ppm
Less than 1 ppm, above this
level deposition will occur
Less than 10 ppm and filtered
for max. of 600 micron size
Less than 1 ppm, above this
level deposition will occur
Less than 10 ppm and filtered
for max. of 600 micron size
Less than 1 ppm, above this
level deposition will occur
Less than 10 ppm and filtered
for max. of 600 micron size
< 6 ft/sec
< 6 ft/sec
< 6 ft/sec
2/22/12
System Cleaning and Flushing
Flushing with Water Shutoff Valve Equipped Systems
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.
Return Runout
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 Flushing with Water Shutoff Valve
Equipped Systems illustration). The system should be filled
at the water make-up connection with all air vents open.
After filling, vents should be closed.
Supply Runout
Mains
Rubber Hose
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.
Runouts Initially
Connected Together
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
13
ENVISION2 COMPACT INSTALLATION MANUAL
System Cleaning and Flushing cont.
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.
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 makeup 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.
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.
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.
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.
Ensure the pump provides adequate flow through the unit
by checking pressure drop across the heat exchanger.
Usually 2.25-3.0 gpm of flow per ton of cooling capacity is
recommended in earth loop applications.
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
Open Loop Ground Water Systems
Open System - Groundwater Application
Typical open loop piping is shown below. 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. Due to only minor
differences in flow rate from low to high, only one solenoid
valve should be used. The valve should be sized for full flow.
Unit Supply
Aux. Heat Supply
Flexible
Duct Collar
Rubber Bladder
Expansion Tank
Hot Water Generator
Connections
Flow Control
Valve
(on outlet of
Solenoid Valve)
Solenoid
Valve
Water Out
Water In
Drain
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.
Shut Off Valves
Disconnects
(If Applicable)
Shut Off Valves
(to isolate solenoid
valve while acid flushing)
Strainer
Compressor
Line Voltage
14
Low Voltage
P/T Plugs
to Thermostat
Vibration
and Valve
Absorbing Pad
Boiler Drains
For HX Flushing
ENVISION2 COMPACT INSTALLATION MANUAL
Hot Water Generator Connections
Typical Hot Water Generator Installation
The heat reclaiming hot water generator coil is of vented
double-wall copper construction and is suitable for
potable water.
3/4 in. x 3/4 in. x 1/2 in. Tee
Cold
Water In
Hot
Water Out
Ball Valve
To maximize the benefits of the hot water generator a
minimum 50-gallon water heater is recommended. For
higher demand applications, use an 80-gallon water heater
or two 50-gallon water heaters connected in a series as
shown below. Electric water heaters are recommended.
Make sure all local electrical and plumbing codes are met
for installing a hot water generator. A water softener is
recommended with hard water (greater than 10 grains or
170 total hardness).
Vent
HWG
Water Out
P/T Relief
Valve
In
HWG
Water In
Field Installed
HWG Pump
Drain Valve
Hot Water Generator Installation In Preheat Tank
Water Tank Preparation
To install a unit with a hot water generator, follow these
installation guidelines.
3/4 in. x 3/4 in. x 1/2 in. Tee
Cold
Water In
Hot
Water Out
Ball Valve
Vent
1. Turn off the power to the water heater.
2. Attach a water hose to the water tank drain connection and
run the other end of the hose to an open drain or outdoors.
3. Close the cold water inlet valve to the water heater tank.
4. Drain the tank by opening the valve on the bottom of the
tank, then open the pressure relief valve or hot water faucet.
5. Flush the tank by opening the cold water inlet valve to
the water heater to free the tank of sediments. Close
when draining water is clear.
6. Disconnect the garden hose and remove the drain valve
from the water heater.
7. Refer to Plumbing Installation and Hot Water
Generator Startup.
HWG
Water Out
P/T Relief
Valve
P/T Relief
Valve
In
HWG
Water In
Field Installed
HWG Pump
Drain Valve
NOTE: This configuration maximizes hot water
generator capability.
CAUTION: Elements will burn out if energized dry.
Plumbing Installation
8. Cut the cold water “IN” line going to the water heater.
9. Insert the reducing solder tee in line with cold water
“IN” line as shown.
10. Run interconnecting copper tubing between the unit
DHW water “IN” and the tee (1/2-inch nominal). The
recommended maximum distance is 50 feet.
11. To prevent air entrapment in the system, install a vent
coupling at the highest point of the interconnecting lines.
12. Insulate all exposed surfaces of both connecting water
lines with 3/8-inch wall closed cell insulation.
1. Inspect the dip tube in the water heater cold inlet
for a check valve. If a check valve is present it must
be removed or damage to the hot water generator
circulator will occur.
2. Remove drain valve and fitting.
3. Thread the 3/4-inch NPT x 3-1/2-inch brass nipple into
the water heater drain port.
4. Attach the center port of the 3/4-inch FPT tee to the
opposite end of the brass nipple.
5. Attach the 1/2-inch copper to 3/4-inch NPT adaptor to
the side of the tee closest to the unit.
6. Install the drain valve on the tee opposite the adaptor.
7. Run interconnecting tubing from the tee to HWG
water out.
NOTE: All plumbing and piping connections must comply
with local plumbing codes.
15
ENVISION2 COMPACT INSTALLATION MANUAL
Hot Water Generator Connections cont.
9. After the thermostat(s) is adjusted, replace the access
cover and restore electrical supply to the water heater.
10. Make sure that any valves in the hot water generator
circuit are open.
11. Turn on the unit to heating.
12. The HWG pump should be running. When the pump
is first started, turn the venting (burping) screw (if
equipped) in the center of the pump two (2) turns open
until water dribbles out, then replace. Allow the pump
to run for at least five minutes to ensure that water has
filled the circulator properly.
13. The temperature difference between the water entering
and leaving the hot water generator should be 5°F to
15°F. The water flow should be approximately 0.4 gpm
per ton of nominal cooling.
14. Allow the unit to heat water for 15 to 20 minutes to be
sure operation is normal.
Hot Water Generator Startup
1.
2.
3.
4.
5.
6.
7.
8.
Make sure the power is off to the heat pump. Connect
the wire from the hot water generator pump to T1 on
the contactor.
Close the drain valve to the water heater.
Open the cold water supply to the tank.
Open a hot water faucet in the building to bleed air
from the system. Close when full.
Open the pressure relief valve to bleed any remaining
air from the tank, then close.
If so equipped, turn the venting (burping) screw in the
center of the pump two (2) turns open (water will drip out),
wait until all air is purged from the pump, then tighten the
plug. Use vent couplings to bleed air from the lines.
Carefully inspect all plumbing for water leaks and
correct as required.
Before restoring electrical supply to the water heater,
adjust the temperature setting on the tank.
• On tanks with both upper and lower elements,
the lower element should be turned down to
the lowest setting, approximately 100°F. The
upper element should be adjusted to 120°F to
130°F. Depending upon the specific needs of
the customer, you may want to adjust the upper
element differently.
• On tanks with a single element, lower the
thermostat setting to 120°F.
CAUTION: Never operate the HWG circulating
pump while dry. If the unit is placed in operation
before the hot water generator piping is
connected, be sure that the pump wires are
disconnected from the contactor.
16
ENVISION2 COMPACT INSTALLATION MANUAL
Freeze Detection
For Aurora Base Control, set SW2-1, FP1, on the printed
circuit board for applications using a closed loop antifreeze
solution to 15°F [-9.4°C]. On applications using an open
loop/ground water system (or closed loop no antifreeze), set
this dip switch to 30°F [-1.1°C], the factory default setting.
(Refer to the Dip Switch Field Selection table).
Electrical Connections
General
208 Volt Operation
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.
All 208/230 units are factory wired for 230 volt operation.
For 208 volt operation, the red and blue transformer wires
must be switched on terminal strip PS.
CAUTION: When installing a unit with a variable
speed ECM blower motor in 460/60/3 voltage,
a neutral wire is required to allow proper unit
operation.
Power Connection
Connect the incoming line voltage wires to L1 and L2 of the
contactor for single-phase unit. Consult the Electrical Data
tables for correct fuse sizes.
Aurora Base Control Box
17
ENVISION2 COMPACT INSTALLATION MANUAL
Electrical Data
PSC Motor
Model
009
012
015
018
024
024*
030
Single Speed
030*
036
036*
042
042*
048
048*
060
070
Rated
Voltage
Voltage
Min/Max
MCC
RLA
LRA
LRA**
Blower
Motor
FLA
Total
Unit
FLA
Min
Circ
Amp
208-230/60/1
265/60/1
208-230/60/1
265/60/1
208-230/60/1
265/60/1
208-230/60/1
265/60/1
208-230/60/1
265/60/1
208-230/60/3
460/60/3
208-230/60/1
265/60/1
208-230/60/3
460/60/3
208-230/60/1
265/60/1
208-230/60/3
460/60/3
208-230/60/1
265/60/1
208-230/60/3
460/60/3
208-230/60/1
265/60/1
208-230/60/3
460/60/3
208-230/60/1
265/60/1
208-230/60/3
460/60/3
208-230/60/1
208-230/60/3
460/60/3
575/60/3
208-230/60/1
208-230/60/3
460/60/3
575/60/3
208-230/60/1
208-230/60/3
460/60/3
575/60/3
208-230/60/1
208-230/60/3
460/60/3
575/60/3
208-230/60/1
208-230/60/3
460/60/3
575/60/3
208-230/60/1
208-230/60/3
460/60/3
575/60/3
187/253
238/292
187/253
238/292
187/253
238/292
187/253
238/292
187/253
238/292
187/253
414/506
187/253
238/292
187/253
414/506
187/253
238/292
187/253
414/506
187/253
238/292
187/253
414/506
187/253
238/292
187/253
414/506
187/253
238/292
187/253
414/506
187/253
187/253
414/506
517/633
187/253
187/253
414/506
517/633
187/253
187/253
414/506
517/633
187/253
187/253
414/506
517/633
187/253
187/253
414/506
517/633
187/253
187/253
414/506
517/633
6.4
6.7
7.7
7.0
9.7
7.8
13.1
8.7
21.0
14.0
11.0
5.5
21.0
14.0
11.0
5.5
20.0
15.0
12.0
5.6
20.0
15.0
12.0
5.6
22.0
17.5
13.9
6.5
22.0
17.5
13.9
6.5
26.0
16.3
9.0
5.9
26.0
16.3
9.0
5.9
31.0
21.2
9.5
6.5
31.0
21.2
9.5
6.5
41.2
24.9
12.1
8.9
44.2
30.0
13.6
10.7
4.1
4.3
4.9
4.5
6.2
5.0
8.4
5.6
13.5
9.0
7.1
3.5
13.5
9.0
7.1
3.5
12.8
9.6
7.7
3.6
12.8
9.6
7.7
3.6
14.1
11.2
8.9
4.2
14.1
11.2
8.9
4.2
16.7
10.4
5.8
3.8
16.7
10.4
5.8
3.8
19.9
13.6
6.1
4.2
19.9
13.6
6.1
4.2
26.4
16.0
7.8
5.7
28.3
19.2
8.7
6.9
21.0
22.0
25.0
22.0
29.0
28.0
33.5
28.0
58.3
54.0
55.4
28.0
58.3
54.0
55.4
28.0
58.0
54.0
55.4
28.0
58.0
54.0
55.4
28.0
73.0
60.0
58.0
28.0
73.0
60.0
58.0
28.0
79.0
73.0
38.0
36.5
79.0
73.0
38.0
36.5
109.0
83.1
41.0
33.0
109.0
83.1
41.0
33.0
134.0
110.0
52.0
38.9
178.0
136.0
66.1
55.3
n/a
n/a
n/a
n/a
n/a
n/a
13.4
n/a
23.3
n/a
33.2
16.8
23.3
n/a
33.2
16.8
23.2
n/a
33.2
16.8
23.2
n/a
33.2
16.8
29.2
n/a
34.8
16.8
29.2
n/a
34.8
16.8
31.6
43.8
22.8
n/a
31.6
43.8
22.8
n/a
43.6
49.9
24.6
n/a
43.6
49.9
24.6
n/a
53.6
66.0
31.2
n/a
71.2
81.6
39.7
n/a
0.6
0.6
0.6
0.6
1.1
1.0
1.1
1.0
1.2
1.1
1.2
0.6
1.5
1.5
1.5
1.0
1.5
1.5
1.5
1.0
2.8
2.0
2.2
1.1
2.8
2.0
2.8
1.4
3.5
3.5
1.8
1.8
3.5
3.5
1.8
1.4
4.6
4.6
2.3
1.9
3.5
3.5
1.8
1.4
4.6
4.6
2.3
1.9
5.9
5.9
3.0
1.9
5.9
5.9
3.0
1.9
4.7
4.9
5.5
5.1
7.3
6.0
9.5
6.6
14.7
10.1
8.3
4.1
15.0
10.5
8.6
4.5
14.3
11.1
9.2
4.6
15.6
11.6
9.9
4.7
16.9
13.2
11.7
5.6
17.6
14.7
10.7
5.6
20.2
13.9
7.6
5.2
21.3
15.0
8.1
5.7
23.4
17.1
7.9
5.6
24.5
18.2
8.4
6.1
32.3
21.9
10.8
7.6
34.2
25.1
11.7
8.8
5.7
6.0
6.7
6.2
8.9
7.3
11.6
8.0
18.1
12.4
10.1
5.0
18.4
12.8
10.4
5.4
17.5
13.5
11.1
5.5
18.8
14.0
11.8
5.6
20.4
16.0
13.9
6.7
21.1
17.5
12.9
6.7
24.4
16.5
9.0
6.1
25.5
17.6
9.5
6.6
28.4
20.5
9.4
6.7
29.5
21.6
9.9
7.2
38.9
25.9
12.8
9.0
41.3
29.9
13.9
10.5
Compressor
HACR circuit breaker in USA only
*With optional High-static PSC motor
**With optional IntelliStart
18
Max Fuse/
HACR
Breaker
10/15
10/15
10/15
10/15
15
10/15
20
10/15
25
20
15
10/15
30
20
15
10/15
30
20
15
10/15
30
20
15
10/15
30
25
20
10/15
35
25
20
10/15
40
25
10/15
10/15
40
25
15
10/15
45
30
15
10/15
45
35
15
10/15
60
40
20
10/15
70
45
20
15
8/06/13
ENVISION2 COMPACT INSTALLATION MANUAL
Electrical Data cont.
5-Speed ECM Motor
Model
015
018
024
Single Speed
030
036
042
048
060
070
Dual Capacity
026
038
049
064
072
Compressor
Rated
Voltage
Voltage
Min/Max
MCC
RLA
LRA
LRA**
Blower
Motor
FLA
Total
Unit
FLA
Min
Circ
Amp
Max Fuse/
HACR
Breaker
208-230/60/1
265/60/1
208-230/60/1
265/60/1
208-230/60/1
265/60/1
208-230/60/3
460/60/3
208-230/60/1
265/60/1
208-230/60/3
460/60/3
208-230/60/1
265/60/1
208-230/60/3
460/60/3
208-230/60/1
208-230/60/3
460/60/3
208-230/60/1
208-230/60/3
460/60/3
208-230/60/1
208-230/60/3
460/60/3
208-230/60/1
208-230/60/3
460/60/3
208-230/60/1
265/60/1
208-230/60/3
460/60/3
208-230/60/1
265/60/1
208-230/60/3
460/60/3
208-230/60/1
208-230/60/3
460/60/3
208-230/60/1
208-230/60/3
460/60/3
208-230/60/1
208-230/60/3
460/60/3
187/253
238/292
187/253
238/292
187/253
238/292
187/253
414/506
187/253
238/292
187/253
414/506
187/253
238/292
187/253
414/506
187/253
187/253
414/506
187/253
187/253
414/506
187/253
187/253
414/506
187/253
187/253
414/506
187/253
238/292
187/253
414/506
187/253
238/292
187/253
414/506
187/253
187/253
414/506
187/253
187/253
414/506
187/253
187/253
414/506
9.7
7.8
13.1
8.7
21.0
14.0
11.0
5.5
20.0
15.0
12.0
5.6
22.0
17.5
13.9
6.5
26.0
16.3
9.0
31.0
21.2
9.5
41.2
24.9
12.1
44.2
30.0
13.6
18.2
14.2
10.1
5.4
23.8
20.3
18.1
8.9
33.0
21.9
10.0
42.3
25.8
11.3
46.3
27.4
13.2
6.2
5.0
8.4
5.6
13.5
9.0
7.1
3.5
12.8
9.6
7.7
3.6
14.1
11.2
8.9
4.2
16.7
10.4
5.8
19.9
13.6
6.1
26.4
16.0
7.8
28.3
19.2
8.7
11.7
9.1
6.5
3.5
15.3
13.0
11.6
5.7
21.1
14.0
6.4
27.1
16.5
7.2
29.7
17.6
8.5
29.0
28.0
33.5
28.0
58.3
54.0
55.4
28.0
58.0
54.0
55.4
28.0
73.0
60.0
58.0
28.0
79.0
73.0
38.0
109.0
83.1
41.0
134.0
110.0
52.0
178.0
136.0
66.1
58.3
54.0
55.4
28.0
83.0
72.0
73.0
38.0
104.0
83.1
41.0
152.9
110.0
52.0
179.2
136.0
66.1
n/a
n/a
13.4
n/a
23.3
n/a
33.2
16.8
23.2
n/a
33.2
16.8
29.2
n/a
34.8
16.8
31.6
43.8
22.8
43.6
49.9
24.6
53.6
66.0
31.2
71.2
81.6
39.7
23.3
n/a
33.2
16.8
33.2
n/a
43.8
22.8
41.6
49.9
24.6
61.2
66.0
31.2
71.7
81.6
39.7
4.1
3.6
4.1
3.6
4.1
3.6
4.1
2.1
4.1
3.6
4.1
2.1
4.1
3.6
4.1
2.1
7.6
7.6
4.0
7.6
7.6
4.0
7.6
7.6
4.0
7.6
7.6
4.0
4.1
3.6
4.1
2.1
4.1
3.6
4.1
2.1
7.6
7.6
4.0
7.6
7.6
4.0
7.6
7.6
4.0
10.3
8.6
12.5
9.2
17.6
12.6
11.2
5.6
16.9
13.2
11.8
5.7
18.2
14.8
13.0
6.3
24.3
18.0
9.8
27.5
21.2
10.1
34.0
23.6
11.8
35.9
26.8
12.7
15.8
12.7
10.6
5.6
19.4
16.6
15.7
7.8
28.7
21.6
10.4
34.7
24.1
11.2
37.3
25.2
12.5
11.9
9.9
14.6
10.6
21.0
14.9
13.0
6.5
20.1
15.6
13.7
6.6
21.7
17.6
15.2
7.4
28.5
20.6
11.2
32.5
24.6
11.6
40.6
27.6
13.8
43.0
31.6
14.9
18.7
15.0
12.2
6.4
23.2
19.9
18.6
9.2
34.0
25.1
12.0
41.5
28.2
13.0
44.7
29.6
14.6
15
10/15
20
15
30
20
20
10/15
30
25
20
10/15
35
25
20
10/15
45
30
15
50
35
15
60
40
20
70
50
20
30
20
15
10/15
35
30
30
10/15
50
35
15
60
40
20
70
45
20
5/21/13
HACR circuit breaker in USA only
**With optional IntelliStart
19
ENVISION2 COMPACT INSTALLATION MANUAL
Electrical Data cont.
Variable Speed ECM Motor
Model
015
018
024
030
Single Speed
036
036*
042
042*
048
048*
060
070
026
Dual Capacity
038
038*
049
049*
064
072
Rated
Voltage
Voltage
Min/Max
208-230/60/1
265/60/1
208-230/60/1
265/60/1
208-230/60/1
265/60/1
208-230/60/3
460/60/3
208-230/60/1
265/60/1
208-230/60/3
460/60/3
208-230/60/1
265/60/1
208-230/60/3
460/60/3
208-230/60/1
265/60/1
208-230/60/3
460/60/3
208-230/60/1
208-230/60/3
460/60/3
208-230/60/1
208-230/60/3
460/60/3
208-230/60/1
208-230/60/3
460/60/3
208-230/60/1
208-230/60/3
460/60/3
208-230/60/1
208-230/60/3
460/60/3
208-230/60/1
208-230/60/3
460/60/3
208-230/60/1
265/60/1
208-230/60/3
460/60/3
208-230/60/1
265/60/1
208-230/60/3
460/60/3
208-230/60/1
265/60/1
208-230/60/3
460/60/3
208-230/60/1
208-230/60/3
460/60/3
208-230/60/1
208-230/60/3
460/60/3
208-230/60/1
208-230/60/3
460/60/3
208-230/60/1
208-230/60/3
460/60/3
187/253
238/292
187/253
238/292
187/253
238/292
187/253
414/506
187/253
238/292
187/253
414/506
187/253
238/292
187/253
414/506
187/253
238/292
187/253
414/506
187/253
187/253
414/506
187/253
187/253
414/506
187/253
187/253
414/506
187/253
187/253
414/506
187/253
187/253
414/506
187/253
187/253
414/506
187/253
238/292
187/253
414/506
187/253
238/292
187/253
414/506
187/253
238/292
187/253
414/506
187/253
187/253
414/506
187/253
187/253
414/506
187/253
187/253
414/506
187/253
187/253
414/506
Compressor
MCC
RLA
LRA
LRA**
9.7
7.8
13.1
8.7
21.0
14.0
11.0
5.5
20.0
15.0
12.0
5.6
22.0
17.5
13.9
6.5
22.0
17.5
13.9
6.5
26.0
16.3
9.0
26.0
16.3
9.0
31.0
21.2
9.5
31.0
21.2
9.5
41.2
24.9
12.1
44.2
30.0
13.6
18.2
14.2
10.1
5.4
23.8
20.3
18.1
8.9
23.8
20.3
18.1
8.9
33.0
21.9
10.0
33.0
21.9
10.0
42.3
25.8
11.3
46.3
27.4
13.2
6.2
5.0
8.4
5.6
13.5
9.0
7.1
3.5
12.8
9.6
7.7
3.6
14.1
11.2
8.9
4.2
14.1
11.2
8.9
4.2
16.7
10.4
5.8
16.6
10.4
5.8
19.9
13.6
6.1
19.9
13.6
6.1
26.4
16.0
7.8
28.3
19.2
8.7
11.7
9.1
6.5
3.5
15.3
13.0
11.6
5.7
15.3
13.0
11.6
5.7
21.1
14.0
6.4
21.1
14.0
6.4
27.1
16.5
7.2
29.7
17.6
8.5
29.0
28.0
33.5
28.0
58.3
54.0
55.4
28.0
58.0
54.0
55.4
28.0
73.0
60.0
58.0
28.0
73.0
60.0
58.0
28.0
79.0
73.0
38.0
79.0
73.0
38.0
109.0
83.1
41.0
109.0
83.1
41.0
134.0
110.0
52.0
178.0
136.0
66.1
58.3
54.0
55.4
28.0
83.0
72.0
73.0
38.0
83.0
72.0
73.0
38.0
104.0
83.1
41.0
104.0
83.1
41.0
152.9
110.0
52.0
179.2
136.0
66.1
n/a
n/a
13.4
n/a
23.3
n/a
33.2
16.8
23.2
n/a
33.2
16.8
29.2
n/a
34.8
16.8
29.2
n/a
34.8
16.8
31.6
43.8
22.8
31.6
43.8
22.8
43.6
49.9
24.6
43.6
49.9
24.6
53.6
66.0
31.2
71.2
81.6
39.7
23.3
n/a
33.2
16.8
33.2
n/a
43.8
22.8
33.2
n/a
43.8
22.8
41.6
49.9
24.6
41.6
49.9
24.6
61.2
66.0
31.2
71.7
81.6
39.7
HACR circuit breaker in USA only
*With optional 1 HP variable speed ECM motor
**With optional IntelliStart
Blower
Motor
FLA
4.0
4.1
4.0
4.1
4.0
4.1
4.0
4.1
4.0
4.1
4.0
4.1
4.0
4.1
4.0
4.1
7.0
6.9
7.0
6.9
4.0
4.0
4.1
7.0
7.0
6.9
4.0
4.0
4.1
7.0
7.0
6.9
7.0
7.0
6.9
7.0
7.0
6.9
4.0
4.1
4.0
4.1
4.0
4.1
4.0
4.1
7.0
7.0
7.0
6.9
4.0
4.0
4.1
7.0
7.0
6.9
7.0
7.0
6.9
7.0
7.0
6.9
Total
Unit
FLA
10.2
9.1
12.4
9.7
17.5
13.1
11.1
7.6
16.8
13.7
11.7
7.7
18.1
15.3
12.9
8.3
21.1
18.1
15.9
11.1
20.7
14.4
9.9
23.6
17.4
12.7
23.9
17.6
10.2
26.9
20.6
13.0
33.4
23.0
14.7
35.3
26.2
15.6
15.7
13.2
10.5
7.6
19.3
17.1
15.6
9.8
22.3
20.0
18.6
12.6
25.1
18.0
10.5
28.1
21.0
13.3
34.1
23.5
14.1
36.7
24.6
15.4
Min
Circ
Amp
11.8
10.4
14.5
11.1
20.9
15.4
12.9
8.5
20.0
16.1
13.6
8.6
21.6
18.1
15.1
9.4
24.6
20.9
18.1
12.2
24.9
17.0
11.3
27.8
20.0
14.1
28.9
21.0
11.7
31.9
24.0
14.5
40.0
27.0
16.7
42.4
31.0
17.8
18.6
15.5
12.1
8.4
23.1
20.4
18.5
11.2
26.1
23.3
21.5
14.0
30.4
21.5
12.1
33.4
24.5
14.9
40.9
27.6
15.9
44.1
29.0
17.5
Max Fuse/
HACR
Breaker
15
15
20
15
30
20
20
10/15
30
25
20
10/15
35
25
20
10/15
35
30
25
15
40
25
15
40
30
15
45
30
15
50
35
20
60
40
20
70
50
25
30
20
15
10/15
35
30
30
15
40
35
30
15
50
35
15
50
35
20
60
40
20
70
45
25
5/21/13
CAUTION: When installing a unit with a variable speed ECM blower motor in 460/60/3 voltage, a neutral wire is required to
allow proper unit operation.
20
ENVISION2 COMPACT INSTALLATION MANUAL
Blower Performance Data
Standard PSC Motor
Model
009
012
015
018
024
030
036
042
048
060
070
Blower Blower Motor
Spd
Size
HP
0
H
480
MH
440
6x8
1/10
ML*
395
L
325
H
480
MH*
440
6x8
1/10
ML
395
L
325
H
845
M
9x7
1/6
735
L
620
H
845
M
9x7
1/6
735
L
620
H
1085
M
9x7
1/5
915
L
845
H
1290
M
9x7
1/3
1100
L
910
H
1665
M
10 x 10 1/2
1465
L
1130
H
2010
M
10 x 10 1/2
1670
L
1220
H
2010
M
10 x 10 1/2
1670
L
1220
H
2430
M
11 x 10
1
2265
L
2075
H
2430
M
11 x 10
1
2265
L
2075
0.05
450
410
370
310
450
410
370
310
835
730
615
835
730
615
1055
895
830
1270
1090
905
1640
1445
1115
1975
1650
1215
1975
1650
1215
2400
2235
2050
2400
2235
2050
0.10
440
400
360
300
440
400
360
300
825
725
610
825
725
610
1030
875
815
1245
1075
900
1610
1425
1100
1940
1630
1210
1940
1630
1210
2365
2205
2020
2365
2205
2020
0.15
420
380
340
280
420
380
340
280
815
715
605
815
715
605
1005
855
795
1220
1060
895
1580
1400
1090
1905
1610
1295
1905
1610
1295
2330
2175
1995
2330
2175
1995
Airflow (cfm) at External Static Pressure (in. wg)
0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.60
410
380
360
340
330
310
300
370
350
330
310
300
280
270
330
310
290
280
270
250
240
270
250
240
230
220
210
200
410
380
360
340
330
310
300
370
350
330
310
300
280
270
330
310
290
280
270
250
240
270
250
240
230
220
210
200
800
790
775
755
735
710
680
565
705
700
690
675
660
630
600
485
600
590
580
565
550
520
490
800
790
775
755
735
710
680
565
705
700
690
675
660
630
600
485
600
590
580
565
550
520
490
980
950
925
895
870
830
795
735
835
815
795
765
735
705
675
590
775
750
725 702.5 680
650
625
505
1190
1160
1125
1090 1055 1020
985
880
1045 1020
995
970
940
910
875
785
885
875
865
850
835
810
780
710
1550
1515
1480 1450
1415
1315
1215
1090
1375
1350 1325 1260
1190
1140 1090 990
1075 1035
995
965
930
895
860
795
1870 1825 1780 1735 1690 1640 1590 1470
1590 1560 1530 1495 1460 1425 1390
1190
1200 1180
1160
1130
1100 1060 1020
930
1870 1825 1780 1735 1690 1640 1590 1470
1590 1560 1530 1495 1460 1425 1390
1190
1200 1180
1160
1130
1100 1060 1020
930
2290 2255 2215 2180 2140 2095 2045 1945
2145
2110 2070 2035 2000 1960
1915
1825
1965 1940
1915
1885 1850 1820 1785
1720
2290 2255 2215 2180 2140 2095 2045 1945
2145
2110 2070 2035 2000 1960
1915
1825
1965 1940
1915
1885 1850 1820 1785
1720
0.70
555
520
760
625
560
980
890
730
1210
1080
1210
1080
1835
1730
1610
1835
1730
1610
0.80
1715
1605
1505
1715
1605
1505
0.90
1510
1440
1335
1510
1440
1335
1.00
1330
1260
1175
1330
1260
1175
3/16/12
0.90
-
1.00
3/16/12
Optional High Static PSC Motor
Airflow (cfm) at External Static Pressure (in. wg)
Blower Blower Motor
Spd
Size
HP
0
0.05
0.10
0.15
0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.60 0.70 0.80
H
1290 1270 1245 1220
1190
1160
1125
1090 1055 1020
985
880
760
024
M
9x7
1/3
1100 1090 1075 1060 1045 1020
995
970
940
910
875
785
625
L
910
905
900
895
885
875
865
850
835
810
780
710
560
H
1365 1340 1325 1305 1280 1250
1215
1180
1140
1100
1055
960
850
030
M
9x7
1/2
1040 1040 1035 1030 1020 1005
990
970
945
915
885
810
735
L
880
880
880
880
875
870
860
840
820
800
775
730
480
H
1930 1905 1875 1840 1805 1765
1725 1680 1635 1530 1425 1270
1150
1025
036
M
10 x 10 1/2
1635 1620 1600 1580 1555 1530 1505 1465 1425
1335 1240
1135
1035
775
L
1230 1230 1225
1215
1200
1165
1130
1095 1060 1035 1005
935
795
675
H
2115
2075 2035 1980 1920 1900 1880 1840 1795 1730 1660 1390 1225 1070
042
M
10 x 10 3/4
2005 1980 1950
1910
1865
1815
1765
1725
1685 1585 1485
1315
1140
1025
L
1860 1835 1805 1780 1750
1715
1675
1635 1590 1540 1490 1260
1115
980
H
2115
2075 2035 1980 1920 1900 1880 1840 1795 1730 1660 1390 1225 1070
048
M
10 x 10 3/4
2005 1980 1950
1910
1865
1815
1765
1725
1685 1585 1485
1315
1140
1025
L
1860 1835 1805 1780 1750
1715
1675
1635 1590 1540 1490 1260
1115
980
Factory settings are in Bold
Air flow values are with dry coil and 1 in. MERV 4.
For wet coil performance first calculate the face velocity of the air coil (Face Velocity [fpm] = Airflow [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.
* Denotes setting for 265 V operation.
Model
Setting Blower Speed - PSC
BLOWER
SPE
ED
W
I
RE
CAUTION: Disconnect all power before
performing this operation.
21
HIGH
MEDIUM
LOW
PSC BLOWER MOTOR BODY
ENVISION2 COMPACT INSTALLATION MANUAL
Blower Performance Data cont.
5-Speed ECM - Single Speed
Model
015
018
024
030
036
042
048
060
070
Motor
Spd
Motor T’Stat Blower Motor
Tap
Cnct.
Size
HP
High
Med High
Med
5
4
3
Med Low
Low
High
Med High
Med
Med Low
Low
High
Med High
Med
Med Low
Low
High
Med High
Med
Med Low
Low
High
Med High
Med
Med Low
Low
High
Med High
Med
Med Low
Low
High
Med High
Med
Med Low
Low
High
Med High
Med
Med Low
Low
High
Med High
Med
Med Low
Low
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
W
9x7
1/2
Y1
G
W
9x7
1/2
9x7
1/2
9x7
1/2
11 x 10
1/2
11 x 10
1
11 x 10
1
11 x 10
1
11 x 10
1
Y1
G
W
Y1
G
W
Y1
G
W
Y1
G
W
Y1
G
W
Y1
G
W
Y1
G
W
Y1
G
Airflow (cfm) at External Static Pressure (in. wg)
0
916
809
727
0.05
898
787
715
0.10
881
765
703
0.15
866
754
682
0.20
851
743
661
0.25
679
725
638
0.30
813
707
616
0.35
804
688
601
0.40
795
669
587
0.45
774
654
561
0.50
754
639
536
0.60
731
606
485
0.70
695
536
-
0.80
643
-
0.90
-
1.00
-
699
656
916
809
727
699
656
1015
935
865
810
695
1407
1146
1023
978
795
1530
1413
1355
1336
1243
1934
1799
1694
1575
1454
1934
1799
1694
1575
1454
2230
2081
1951
1812
1668
2472
2271
2133
2008
1806
675
604
898
787
715
675
604
1003
915
855
790
645
1381
1134
1012
962
777
1503
1388
1325
1299
1182
1910
1783
1680
1560
1406
1910
1783
1680
1560
1406
2212
2065
1931
1790
1651
2454
2248
2115
1985
1784
652
552
881
765
703
652
552
990
895
845
770
595
1354
1122
1001
946
759
1476
1363
1294
1261
1121
1886
1767
1666
1540
1358
1886
1767
1666
1540
1358
2193
2048
1910
1767
1633
2435
2225
2096
1962
1761
631
530
866
754
682
631
530
975
880
825
755
575
1327
1111
985
934
748
1453
1342
1276
1242
1061
1871
1744
1642
1520
1333
1871
1744
1642
1520
1333
2173
2032
1889
1748
1612
2414
2205
2072
1939
1742
611
508
851
743
661
611
508
955
875
810
740
550
1300
1099
969
922
737
1429
1321
1258
1222
1000
1855
1720
1617
1502
1308
1855
1720
1617
1502
1308
2152
2015
1868
1728
1591
2393
2184
2047
1915
1722
594
493
679
725
638
594
493
945
855
795
725
520
1267
1085
959
907
718
1413
1303
1235
1202
964
1827
1693
1592
1487
1285
1827
1693
1592
1487
1285
2139
1998
1850
1708
1566
2371
2166
2030
1898
1696
577
479
813
707
616
577
479
935
840
780
710
495
1233
1071
949
891
698
1397
1285
1212
1181
928
1799
1666
1567
1471
1261
1799
1666
1567
1471
1261
2125
1980
1831
1688
1540
2349
2147
2013
1880
1669
551
436
804
688
601
551
436
920
825
765
695
455
1201
1062
937
882
686
1376
1263
1188
1157
856
1780
1649
1552
1448
1239
1780
1649
1552
1448
1239
2109
1963
1812
1671
1525
2328
2129
1996
1862
1656
525
394
795
669
587
525
394
905
815
750
680
420
1168
1052
925
872
673
1355
1240
1164
1132
784
1760
1631
1537
1424
1217
1760
1631
1537
1424
1217
2092
1946
1793
1654
1510
2306
2110
1979
1843
1642
490
350
774
654
561
490
350
890
800
735
660
400
1131
1042
913
858
650
1342
1226
1144
1111
744
1747
1617
1519
1409
1198
1747
1617
1519
1409
1198
2076
1928
1774
1640
1491
2289
2094
1965
1828
1625
455
754
639
536
455
880
785
720
640
1094
1031
901
843
626
1329
1212
1123
1090
703
1734
1603
1500
1393
1179
1734
1603
1500
1393
1179
2059
1910
1755
1626
1472
2271
2078
1950
1812
1607
731
606
485
850
755
675
560
1009
966
1276
1173
982
937
647
1700
1560
1453
1351
1072
1700
1560
1453
1351
1072
2026
1880
1722
1584
1433
2236
2039
1909
1774
1564
695
536
825
720
610
530
1231
1016
909
874
592
1659
1530
1421
1308
1002
1659
1530
1421
1308
1002
1992
1849
1688
1547
1400
2189
2011
1873
1742
1527
643
745
580
570
1173
946
883
830
1617
1492
1372
1266
988
1617
1492
1372
1266
988
1951
1806
1654
1510
1351
2121
1977
1837
1703
1490
1892
1767
1612
1472
1299
2033
1930
1793
1669
1443
1806
1728
1562
1417
1208
1936
1846
1748
1635
1404
Factory settings are in Bold
Air flow values are with dry coil and standard 1 in. filter
11/20/12
About 5-Speed ECM Constant
Torque Motors
airflow decreases resulting in less torque on the rotor. The
motor responds only to changes in torque and adjusts its
speed accordingly.
The 5-speed ECM is a ‘Constant Torque’ ECM motor and delivers
air flow similar to a PSC but operates as efficiently as a variable
speed ECM motor. Because it is an ECM motor, the 5-speed
ECM can ramp slowly up or down like the variable speed ECM
motor. There are 5 possible speed taps available on the 5-speed
ECM motor with #1 being the lowest airflow and #5 being the
highest airflow. These speed selections are preset at the time of
manufacture and are easily changed in the field if necessary.
The 5-speed ECM motor is powered by line voltage but the
motor speed is energized by 24VAC.
5-Speed ECM Benefits:
- High efficiency
- Soft start
- 5 speeds with up to 4 speeds on-line
- Built in logic allows air flow to change with G, Y1, Y2 and
W signals
- Super efficient low airflow continuous blower setting (G)
If more than one tap are energized at the same time, built in
logic gives precedence to the highest tap number and allows
air flow to change with G, Y1, Y2 and W signals. Each of those
5 speeds has a specific ‘Torque’ value programmed into the
motor for each speed selection. As static pressure increases,
22
ENVISION2 COMPACT INSTALLATION MANUAL
Blower Performance Data cont.
5-Speed ECM - Dual Capacity
Model
Motor
Speed
Motor
Tap
T’stat Blower Motor
Cnct.
Size
HP
0
1120
1020
917
836
735
1530
1413
1355
1336
1243
1934
1799
1694
1575
1454
2245
2092
1951
1812
1682
2472
2271
2133
2008
1806
0.05
1109
1006
906
824
721
1503
1388
1325
1299
1182
1910
1783
1680
1560
1406
2360
2073
1931
1796
1661
2360
2248
2115
1985
1784
0.10
1097
991
895
812
707
1476
1363
1294
1261
1121
1886
1767
1666
1540
1358
2214
2054
1910
1780
1640
2435
2225
2096
1962
1761
0.15
1082
980
884
794
687
1453
1342
1276
1242
1061
1871
1744
1642
1520
1333
2315
2035
1889
1761
1616
2315
2205
2072
1939
1742
Airflow (cfm) at External Static Pressure (in. wg)
0.20
0.25
0.30
0.35
0.40 0.45
0.50 0.60
1066
1055
1044
1028
1011
1001
991
932
968
950
932
922
911
894
876
849
872
854
836
824
812
792
772
754
776
765
754
735
715
703
691
653
666
653
640
622
603
589
574
533
1429
1413
1397
1376
1355
1342
1329
1276
1321
1303
1285
1263
1240
1226
1212
1173
1258
1235
1212
1188
1164
1144
1123
982
1222
1202
1181
1157
1132
1111
1090
937
1000
964
928
856
784
744
703
647
1855
1827
1799
1780
1760
1747
1734
1700
1720
1693
1666
1649
1631
1617
1603
1560
1617
1592
1567
1552
1537
1519
1500
1453
1502
1487
1471
1448
1424
1409
1393
1351
1308
1285
1261
1239
1217
1198
1179
1072
2173
2290 2136
2275
2103 2250 2070 2032
2015
1995
1975
1958
1940
1922
1904 1880
1868
1850
1831
1812
1793
1774
1755
1722
1741
1718
1695
1682
1668
1651
1633
1591
1591
1573
1555
1533
1510
1495
1480
1441
2393 2290 2349 2275 2306 2250
2271
2236
2184
2166
2147
2129
2110
2094 2078 2039
2047 2030 2013
1996
1979
1965
1950
1909
1915
1898
1880
1862
1843
1828
1812
1774
1722
1696
1669
1656
1642
1625
1607
1564
0.70
0.80
High
5
W
839
Med High
4
Y2
812
026
Med
3
9x7
1/2
719
Med Low
2
Y1
631
Low
1
G
High
5
W
1231
1173
Med High
4
Y2
1016
946
038
Med
3
Y1
11 x 10
1/2
909
883
Med Low
2
874
830
Low
1
G
592
High
5
W
1659
1617
Med High
4
1530
1492
049
Med
3
Y2
11 x 10
1
1421
1372
Med Low
2
Y1
1308
1266
Low
1
G
1002
988
High
5
W
1998
1957
Med High
4
Y2
1843
1806
064
Med
3
11 x 10
1
1688
1654
Med Low
2
Y1
1555
1518
Low
1
G
1400
1351
High
5
W
2189
2121
Med High
4
Y2
2011
1977
072
Med
3
11 x 10
1
1873
1837
Med Low
2
Y1
1742
1703
Low
1
G
1527
1490
Factory speed settings are in Bold
Air flow values are with dry coil and standard filter
For wet coil performance first calculate the face velocity of the air coil (Face Velocity [fpm] = Airflow [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.
Highest setting is for auxiliary heat (W) and lowest setting is for constant blower (G). The “Y1” and “Y2” settings must be between the “G” and “W” settings.
0.90
1910
1767
1612
1480
1316
2033
1930
1793
1669
1443
1.00
1825
1728
1562
1433
1263
1936
1846
1748
1635
1404
3/16/12
Setting Blower Speed - 5-Speed ECM
5-speed ECM blower motors have five (5) speeds of which
three (3) are selectable on single speed and four (4) are
selectable on dual capacity.
CAUTION: Disconnect all power before
performing this operation.
5-Speed ECM Motor Connections - Single Speed
5-Speed ECM Motor Connections - Dual Capacity
High Voltage
Connections
3/16 in.
High Voltage
Connections
3/16 in.
C
C - Black
L
G
C
N
C - Black
L - Orange
G - Green
G - Blue
Y1 - Red
1
2
3
4
5
N - Brown
L - Orange
G - Green
AUX - Gray
G - Blue
Y1 - Red
Low Voltage
Connections 1/4 in.
23
L
G
N
N - Brown
1
2
3
4
Low Voltage
Connections 1/4 in.
5
AUX - Gray
Y2 - Tan
ENVISION2 COMPACT INSTALLATION MANUAL
Blower Performance Data cont.
Variable Speed ECM Motor
Single Speed
Model
Max
ESP
Blower
Size
Motor
hp
015
0.50
9x7
1/2
018
0.50
9x7
1/2
024
0.50
9x7
1/2
030
0.50
9x7
1/2
036
0.50
11 x 10
1/2
036
w/1hp*
0.75
11 x 10
1
042
0.50
11 x 10
1/2
042
w/1hp*
0.75
11 x 10
1
048
0.50
11 x 10
1/2
048
w/1hp*
0.75
11 x 10
1
060
0.75
11 x 10
1
070
0.75
11 x 10
1
1
300
300
2
400
L
400
L
400
400
650
750
800
1000
L
800
650
800
650
900
L
800
800
900
800
950
800
950
3
500
500
500
L
500
L
850
L
1100
M
900
L
1000
900
1000
L
1100
L
1100
L
Airflow DIP Switch Settings
5
6
7
8
700
H
700
800
H
700
800
900
1000
H
700
800
900
1000
M
H
1100
1200
1300
1400
M
H
1500
1600
1800
4
600
M
600
M
600
M
600
1000
1300
H
1050
1150
M
1400
H
1150
1200
M
1050
L
1200
1400
M
1500
M
1500
1300
1300
1250
1350
1600
1700
1250
1350
M
1700
1450
1950
H
1950
1600
H
1750
1750
M
1450
H
1850
9
10
1100
1200
1100
1200
11
12
1500
1550
2000
2200
2300
2400
1850
1550
H
2000
2200
2300
2400
2100
2300
2100
H
2300
3/16/12
Dual Capacity
Model
Max
ESP
Blower
Size
Motor
hp
026
0.50
9x7
1/2
038
0.50
11 x 10
1/2
038
w/1hp*
0.75
11 x 10
1
049
0.50
11 x 10
1/2
049
w/1hp*
0.75
11 x 10
1
064
0.75
11 x 10
1
1
2
400
650
750
L
1000
800
L
650
800
L
800
950
L
950
1000
1100
M
900
1300
H
1050
1000
1200
1100
1300
Air Flow DIP Switch Settings
5
6
7
8
700
800
900
1000
M
H
1100
1200
1300
1400
M
H
1500
1600
1800
4
600
1150
1250
1400
M
1500
M
1500
1600
H
1750
1100
1300
L
Factory settings are at recommended L-M-H DIP switch locations
M-H settings MUST be located within boldface cfm range
Lowest and Highest DIP switch settings are assumed to be L and H respectively
cfm is controlled within ±5% up to the maximum ESP
Max ESP includes allowance for wet coil and 1 in. MERV 4
072
0.75
11 x 10
1
800
800
L
900
3
500
L
850
24
1750
M
9
1100
10
1200
11
12
2200
2300
2400
1500
1350
M
1700
1450
1850
1550
H
2000
1950
H
1950
2100
2300
2100
H
2300
3/16/12
ENVISION2 COMPACT INSTALLATION MANUAL
Blower Performance Data cont.
Variable Speed ECM Setup with an AID Tool cont.
Selecting YES will enter
ECM SPEED INFO
variable speed ECM speed
setup, while selecting NO will
LOW SPEED: 3
MED SPEED: 5
return to the previous screen.
Setting Blower Speed - Variable Speed ECM
The ABC board’s Yellow Config LED will flash
the current variable speed ECM blower speed
selections for low, med, and high continuously
with a short pause in between. The speeds can
also be confirmed with the AID Tool under the
Setup/ECM Setup screen. The variable speed ECM
blower motor speeds can be field adjusted with or
without using an AID Tool.
HIGH SPEED: 7
WANT TO CHANGE?
Variable Speed ECM Setup without an AID Tool
The blower speeds for Low (G only), Med (Y1),
and High (Y2/Aux) can be adjusted directly
at the Aurora ABC board which utilizes the
push button (SW1) on the ABC board. This
procedure is outlined in the Variable Speed ECM
Configuration Mode portion of the Aurora ‘Base’
Control System section.
YES
OPTION ◄►
NO
ENTER ◙
Variable Speed ECM Speed Setup - These screens
allow the technician to select the low, medium,
and high blower speed for the variable speed ECM
blower motor. Change the highlighted item using
the ▲ and ▼ buttons. Press the ◙ button to select
the speed.
Variable Speed ECM Setup with an AID Tool
A much easier method utilizes the AID Tool to
change the airflow using the procedure below.
First navigate to the Setup screen and then
select ECM Setup. This screen displays the
current variable speed ECM settings. It allows the
technician to enter the setup screens to change
the variable speed ECM settings. Change the
highlighted item using the ◄ and ► buttons and
then press the ◙ button to select the item.
ECM SPEED INFO
1
2 <– LOW
3
4
5
6
7
8
9
10
11
12
OPTION ◄►
ECM SPEED INFO
1
2 LOW
3
4
5
6
7
8
9
10
11
12
ENTER ◙
<– MED
OPTION ◄►
ENTER ◙
ECM SPEED INFO
1
2 LOW
3
4
5
6
7
8
9
10
11
12
MED
OPTION ◄►
<– HIGH
ENTER ◙
After the high speed setting is selected the AID
Tool will automatically transfer back to the ECM
Setup screen.
25
ENVISION2 COMPACT INSTALLATION MANUAL
Wiring Schematics
Aurora Control 460/60/3 Variable Speed ECM
Compressor
T3
T1
Red
Yellow
T3
Phase
Guard
Monitor
(PGM)
L1 L2 L3
Black
T2
T1
CC
L3
L2
Unit Power Supply
460/60/3 w/Neutral
G
Note 3
T2
Orange
Note 1
PB3
Brown
N
Green (93)
Gray (94)
Black (54)
L1
Black (95)
L1
L1
Blue (55)
L2
Yellow (96)
L2
L2
Red (56)
L3
Red (97)
L3
L3
L1
Ground
Neutral
Disconnect
Black (7)
White (8)
Red (9)
Black (54)
Blue (55)
Red (56)
Blue
460V
Orange
Black
Brown
Green
Transformer
Note 4
24V
PGM
Y-OUT
Y
1
Black/White
Yellow
2
3
4
5
P11
C
Black/White (92)
Variable Speed
ECM
Blower Motor
Yellow (91)
Dual
Capacity
Units Only
Ÿ
Resistor
C
K1
R
K2
F
K5
ALG
ACC COM
ACC NO
ACC NC
K6
SW1
Aurora Base Control
(ABC)
LO
R
Red (53)
Note 2
G
FP1 – 15°F/30°F
FP2 – 15°F/30°F
RV – B/O
Acc – Dip 1
Acc – Dip 2
CC – Dual/Single
L – Pulse/Continuous
Reheat/Normal
Y1
Y2
W
DH
P1
LED5
C
RH
LED4
Blue (24)
CFM
Yellow (25)
P8
C
R
A- B+ P7
C
R
Green/Yellow (28)
On
1
2
3
4
5
6
7
8
SW2
Off
Notes
1 – Optional, factory installed unit mounted disconnect.
2 – Optional, factory installed internal isolation valve.
3 – Optional, factory installed phase guard
4 – Optional, factory installed phase guard. The yellow
transformer wire shall be connected directly to the CPU
board, if this option is not installed.
Config
Y
RS485 EXP
RS485 NET
A- B+ P6 N/A CO C EH1 C EH2 P3
Y1 G
CC
Legend
Brown (23)
Green
Gray
(61)
PWM
C
RS485 NET
Yellow
Violet (42)
P13
Fault
R
O/B
F1
Black/White
Status
G
C
R
Factory Low Voltage Wiring
Factory Line Voltage Wiring
Field Low Voltage Wiring
Field Line Voltage Wiring
Optional Block
DC Voltage PCB Traces
Field Zone Sensor Wiring
Internal Junction
Quick Connect Terminal
Gray (60)
Condensate
Accessory Relay
Operation
SW2-4 SW2-5
On
On
Cycle with Blower
Off
Off
Cycle with Compressor
Off
On
Water Valve Slow Open
Off
On
Outdoor Air Damper
Field Wiring Lug
Switch - Condensate Overflow
Switch - High pressure
Switch - Low pressure
1
L1
Relay Coil
2
Aurora LED Flash Codes
1 second on and 1 second off
100 milliseconds on and 100 milliseconds off
100 milliseconds on and 400 milliseconds off with a 2 second pause before repeating
Random Start Delay
Fast Flash
Status LED (LED1, Green)
Fast Flash
Configuration LED (LED2, Yellow)
Fast Flash
Fault LED (LED3, Red)
Configuration LED (LED2, Yellow)
Fault LED (LED3, Red)
Status LED (LED1, Green)
OFF
No Software Overide
Flash ECM Setting Normal Mode
Normal Mode
ON
DIP Switch Overide
Slow Flash
Input Fault Lockout
Flash Code 1
OFF
Control is Non-Functional
Fast Flash
High Pressure Lockout
Flash Code 2
Test Mode
Slow Flash ECM Configure Mode
Off
Low Pressure Lockout
Flash Code 3
Fast Flash Reset Configure Mode
Lockout Active
Flash Code 4
Low Air Coil Limit Lockout - FP2
Flash Code 2
Dehumidification Mode
Low Water Coil Limit Lockout - FP1 Flash Code 5
Flash Code 3
Reserved
Reserved
Flash Code 6
Flash Code 4
Reserved
Flash Code 7
Condensate Overflow Lockout
Flash Code 5
Load Shed
Flash Code 8
Over/Under Voltage Shutdown
Flash Code 6
ESD
Flash Code 9
Flash Code 7
Reserved
Reserved
Flash Code 10
Reserved
Air/Water Coil Limit Sensor Error
Flash Code 11
Slow Flash
Fast Flash
Flash Code
Thermistor
T
3
Aurora Timing Events
Test Mode
Normal Mode
Event
5 to 80 seconds
1 second
Random Start Delay
5 seconds
< 1 second
Compressor On Delay
2 minutes
5 seconds
Compressor Minimum On Time
4 minutes
15 seconds
Compressor Short Cycle Delay
30 seconds
2 seconds
Blower Off Delay
Less than 1 second Less than 1 second
Fault Recognition Delay – High Pressure
2 minutes
30 seconds
Start-Up Bypass – Low Pressure
30 seconds
30 seconds
Fault Recognition Delay – Low Pressure
2 minutes
30 seconds
Start-Up Bypass – Low Water/Air Coil Limit
30 seconds
30 seconds
Fault Recognition Delay – Low Water/Air Coil Limit
30 seconds
30 seconds
Fault Recognition Delay – Condensate Overflow
2 seconds
2 seconds
Thermostat Call Recognition Time
5 minutes
20 seconds
Auxiliary Heat Staging Delay
2 minutes
7.5 seconds
Emergency Heat Staging Delay
90 seconds
90 seconds
Water Valve Slow Open Delay
30 seconds
30 seconds
Reheat Delay
P12
Black (10)
Black (09)
LS
ALM
Blue (08)
K3
K4
3
REV REV FP1 FP1 FP2 FP2 LPS LPS HPS HPS P4
P12
P2
ES
HP
12 15 10 16 1
Blue (07)
24V
Yellow
CC
Yellow
R
JW2
R LO P9
Blue(18)
CC2 CC2 CC2 P5
F FG CC CCG
HI LO G
Orange (02)
Blue(16)
DH W Y2 Y1 G O/B C
LP
RCP
Orange (01)
Red
(51)
Green
(50)
White
(52)
FD
T
RV
3
Black (15)
1
Violet (14)
2
RV
CS
Ÿ
CC
Note 2
Isolation
Valve
R
G
PWM
CFM
C1
C2
UltraTech
Polarized connector
Ground
G
Light Emitting Diode - Green
Capacitor
Y
Light Emitting Diode - Yellow
Fuse
R
Light Emitting Diode - Red
Relay Contacts – N.O., N.C.
CC – Compressor Contactor
CO – Condensate Overflow Sensor
ES – Emergency Shutdown
HP – High Pressure Switch
LP – Low Pressure Switch
FD – Freeze Detection Sensor
F1 – Fuse
SW1 – Push button
SW2 – DIP package 8 position
RB – Blower Relay
RV – Reversing Valve Coil
PGM – Phase Guard Monitor
RH – Reheat Valve Coil
97P818-08
26
3/19/12
ENVISION2 COMPACT INSTALLATION MANUAL
Wiring Schematics cont.
Aurora Base Control 460/60/3 5-Speed ECM with Reheat
T3
Note 4
T1
T2
Red
Phase
Guard
Monitor
(PGM)
L1 L2 L3
Black
Yellow
T3
T2
Unit Power Supply
460/60/3
G
T1
CC
L3
L2
L1
Note 1
Red (9)
Green (93)
Ground
Neutral
Disconnect
White (8)
Black (7)
Black (95)
L1
L1
Yellow (96)
L2
L2
Red (97)
L3
L3
X13
Fan
Motor
N
L
Orange
Blue
460V
G
Green
Brown
Black
Note 5
5
PGM
Y-OUT
4
3
2
1
C
Transformer
Y
24V
Black/White
C
Note 5
Yellow
Black/White (92)
Yellow (91)
Gray
Tan
Red
Blue
Black
Dual
Capacity
Units Only
470Ÿ
Resistor
UltraTech
Blue(18)
CC2 CC2 CC2 P5
HI LO G
REV REV FP1 FP1 FP2 FP2 LPS LPS HPS HPS P4
C
P2
R
K1-RV Relay
K5-Alarm
Relay
K3-CC2 Relay
ALG
K2-CC Relay
LS
ALM
K4-Fan Relay
ES
ACC NC
Black/White
Yellow
F1-3A
F
ACC COM
ACC NO
Aurora Timing Events
Normal Mode
Test Mode
Event
5 to 80 seconds
1 second
Random Start Delay
5 seconds
< 1 second
Compressor On Delay
2 minutes
5 seconds
Compressor Minimum On Time
4 minutes
15 seconds
Compressor Short Cycle Delay
30 seconds
2 seconds
Blower Off Delay
Less than 1 second Less than 1 second
Fault Recognition Delay – High Pressure
2 minutes
30 seconds
Start-Up Bypass – Low Pressure
30 seconds
30 seconds
Fault Recognition Delay – Low Pressure
2 minutes
30 seconds
Start-Up Bypass – Low Water/Air Coil Limit
30 seconds
30 seconds
Fault Recognition Delay – Low Water/Air Coil Limit
30 seconds
30 seconds
Fault Recognition Delay – Condensate Overflow
2 seconds
2 seconds
Thermostat Call Recognition Time
5 minutes
20 seconds
Auxiliary Heat Staging Delay
2 minutes
7.5 seconds
Emergency Heat Staging Delay
90 seconds
90 seconds
Water Valve Slow Open Delay
30 seconds
30 seconds
Reheat Delay
Black (10)
F FG CC CCG
Black (09)
R
Blue (08)
P9
Blue (07)
F
C
Yellow
CC
Yellow
CC2
JW2
EH1
Accessory Relay
Operation
SW2-4 SW2-5
On
On
Cycle with Blower
Off
Off
Cycle with Compressor
Off
On
Water Valve Slow Open
Off
On
Outdoor Air Damper
HP
T
Blue(16)
Orange (01)
Red
(51)
Green
(50)
White
(52)
LP
RCP
Orange (02)
3
Black (15)
Violet (14)
1
RV
Isolation
Valve
2
FD
470Ÿ
RV
CS
CC
Note 2
PWM
K6-Acc
Relay
Aurora Base Control
(ABC)
LO
R
SW1
Test Mode
CFM
Status
LED3
G
C
Fault
LED1
R
Red (53)
Note 2
C
O/B
G
FP1 – 15°F/30°F
FP2 – 15°F/30°F
RV – B/O
Acc – Dip 4
Acc – Dip 5
CC – Dual/Single
L Output Type
Future Use
Y1
Y2
W
DH
P1
RS485 NET
R
C
Com2
LED5
G
Com1
LED5
RS485 NET
P8
C
R
-
G
+ P7
Config
LED2
Y
RS485 EXP
C
R
-
+ P6 CO C EH1 C EH2 P3
Y1
G
P13
On
1
2
3
4
5
6
7
8
SW2
Off
Notes:
1 – Optional, factory installed unit mounted disconnect.
2 – Optional, factory installed internal isolation valve.
3 – Optional, factory installed phase guard
4 – Optional, factory installed phase guard. The yellow transformer wire
shall be connected directly to the CPU board, if this option is not installed.
5 – Wire is provided with the unit but only connected to the X13 motor on dual
capacity units.
CC
Green
Brown (23)
Legend
Factory Low Voltage Wiring
Factory Line Voltage Wiring
Field Low Voltage Wiring
Field Line Voltage Wiring
Optional Block
DC Voltage PCB Traces
Field Zone Sensor Wiring
Internal Junction
Quick Connect Terminal
Condensate
Gray
(61)
RH
Gray (60)
Aurora LED Flash Codes
Switch - High pressure
Switch - Low pressure
1
Field Wiring Lug
Switch - Condensate Overflow
2
L1
Relay Coil
3
1 second on and 1 second off
100 milliseconds on and 100 milliseconds off
100 milliseconds on and 400 milliseconds off with a 2 second pause before repeating
Random Start Delay
Fast Flash
Status LED (LED1, Green)
Fast Flash
Configuration LED (LED2, Yellow)
Fast Flash
Fault LED (LED3, Red)
Configuration LED (LED2, Yellow)
Fault LED (LED3, Red)
Status LED (LED1, Green)
No Software Overide
Flash ECM Setting Normal Mode
OFF
ON
Normal Mode
DIP Switch Overide
Slow Flash
Input Fault Lockout
Flash Code 1
OFF
Control is Non-Functional
Fast Flash
High Pressure Lockout
Flash Code 2
Slow Flash ECM Configure Mode
Test Mode
Off
Low Pressure Lockout
Flash Code 3
Fast Flash Reset Configure Mode
Lockout Active
Flash Code 4
Flash Code 2
Low Air Coil Limit Lockout - FP2
Dehumidification Mode
Flash Code 3
Low Water Coil Limit Lockout - FP1 Flash Code 5
Reserved
Reserved
Flash Code 6
Flash Code 4
Reserved
Flash Code 7
Flash Code 5
Condensate Overflow Lockout
Load Shed
Over/Under Voltage Shutdown
Flash Code 8
ESD
Flash Code 6
Flash Code 9
Flash Code 7
Reserved
Reserved
Flash Code 10
Reserved
Flash Code 11
Air/Water Coil Limit Sensor Error
Slow Flash
Fast Flash
Flash Code
Thermistor
T
Polarized connector
Ground
G
Light Emitting Diode - Green
Capacitor
Y
Light Emitting Diode - Yellow
Fuse
R
Light Emitting Diode - Red
Relay Contacts – N.O., N.C.
CC – Compressor Contactor
CO – Condensate Overflow Sensor
ES – Emergency Shutdown
HP – High Pressure Switch
LP – Low Pressure Switch
FD – Freeze Detection Sensor
F1 – Fuse
SW1 – Push button
SW2 – DIP package 8 position
RB – Blower Relay
RV – Reversing Valve Coil
PGM – Phase Guard Monitor
RH – Reheat Valve Coil
97P819-16 10/30/12
27
ENVISION2 COMPACT INSTALLATION MANUAL
Wiring Schematics cont.
Aurora Control and UPC
To ABC - P8
12345678
Orange
Blue
Red
Green
White
Brown
Black
Yellow
BACnet or N2
Network
Connections
COM
NET-
NET+
COM
Optional LON
Add-On Module
NET-
NET+
Devices Must Be Wired in
Daisy Chain Configuration
POWER
LON OC
GND
NET+
24 VAC
NETLON Network
Connections
LED3
POWER
NET+
LED2
RX
FORMAT BATT
N/C
Communication
Options
Signal
ECHELON
1
Tx
LED3
Rx
LED4
LED6
TX
LED7
RX
2W
4W
1
2
GND
RNET+
RNET+12V
RNET
2
ZS Sensor 1
Addr: 0
ZS Sensor 2
Addr: 1
ZS Sensor 3
Addr: 2
LED4
GND
LN+
LN+12
/S
LED5
ERR
901
8
2
3
7
654
901
8
2
3
7
654
MAC Address Setting
GND
RNET+
RNET+12V
GND
RNET+
RNET+12V
GND
RNET+
RNET+12V
Notes
1. Use DIP Switches 5 – 8 to change
communication protocol and DIP switches 1 – 2
to change BACnet baud rate
Zone Sensors can be wired in daisy chain as show or in a star or
hybrid configuration. Maximum of 5 sensors per UPC. Maximum
allowable load 210mA. See the UPC install manual for possible
sensor combinations.
ON
1 2 34
1
2
4
8
TEN’S
RUN
ONE’S
LOCAL ACCESS
ZS Sensor Information
DIP
Switch
Value
NOTE 1
ON
Net
1
LON
A
ADAPTER
PORT
1 2 3 4 5 6 7 8
N/C
LED1
LED2
2
LED1
TX
NET-
Service
Devices Must
Be Wired in
Daisy Chain
Configuration
COM
Each ZS sensor must have a unique address, but
the addresses do not need to be sequential. Use
the DIP switches on the back of the ZS sensor to
set an address from 0 to 4. (0 is the factory
default.) Each DIP switch has the value shown in
the figure to the left. Turn on as many DIP
switches as you need so that their total value
equals the address.
Legend
Factory Low Voltage Wiring
Field Low Voltage Wiring
12345678
RJ45 Connector
Page 1
28
ENVISION2 COMPACT INSTALLATION MANUAL
Controls - Aurora Base Control
Aurora ‘Base’ Control
Field Selectable Options via Hardware
DIP Switch (SW1) – Test/Configuration Button (See SW1
Operation Table)
Test Mode
The control is placed in the test mode by holding the push
button switch SW1 for 2 - 5 seconds. In test mode most of
the control timings will be shortened by a factor of sixteen
(16). LED3 (green) will flash at 1 second on and 1 second
off. Additionally, when entering test mode LED1 (red) will
flash the last lockout one time. Test mode will automatically
time out after 30 minutes. Test mode can be exited by
pressing and holding the SW1 button for 2 to 5 seconds or
by cycling the power. NOTE: Test mode will automatically
be exited after 30 minutes.
NOTE: Refer to the Aurora Base Control Application and
Troubleshooting Guide and the Instruction Guide: Aurora
Interface and Diagnostics (AID) Tool for additional information.
Control Features
ECM Configuration Mode
Software ABC Standard Version 2.0
Single or Dual Capacity Compressors
The control is placed in the ECM configuration mode by
holding the pushbutton switch SW1 for 5 to 10 seconds, the
high, low, and “G” ECM speeds can be selected by following
the LED display lights. LED2 (yellow) will fast flash when
entering the ECM configuration. When setting “G” speed
LED3 (green) will be continuously lit, for low speed LED1
(red) will be continuously lit, and for high speed both LED3
(green) and LED1 (red) will be continuously lit. During the
ECM configuration mode LED2 (yellow) will flash each of
the 12 possible blower speeds 3 times. When the desired
speed is flashed press SW1, LED2 will fast flash until SW1
is released. “G” speed has now been selected. Next select
low speed, and high speed blower selections following the
same process above. After third selection has been made,
the control will exit the ECM configuration mode. Aux fan
speed will remain at default or current setting and requires
the AID Tool for adjustment.
Either single or dual capacity compressors can be operated.
Variable Speed ECM Blower Motor Option
A Variable Speed ECM blower motor can be driven directly
using the onboard PWM output. Four blower speeds are
available based upon the G, Y1, Y2, and W input signals to
the board. The blower speeds can be changed either by the
ECM manual configurations mode method or by using the
Aurora AID Tool directly. All four blower speeds can be set
to the same speed if desired.
5-Speed ECM Blower Motor Option
A 5-Speed ECM blower motor will be driven directly using
the thermostat connections. Any of the G, Y1, or Y2/W
signals can drive any of the 5 available pre-programmed
blower speeds on the motor. All 5 Series "G" vintage units
will be wired this way at the factory.
Reset Configuration Mode
The control is placed in reset configuration mode by
holding the push button switch SW1 for 50 to 60 seconds.
This will reset all configuration settings and the EEPROM
back to the factory default settings. LED3 (green) will turn
off when entering reset configuration mode. Once LED3
(green) turns off, release SW1 and the control will reset.
Other Control Features
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Random start at power up
Anti-short cycle protection
High and low pressure cutouts
Loss of charge
Water coil freeze detection
Air coil freeze detection
Over/under voltage protection
Condensate overflow sensor
Load shed
Dehumidification (where applicable)
Emergency shutdown
Hot gas reheat operation (where applicable)
Diagnostic LED
Test mode push button switch
Two auxiliary electric heat outputs
Alarm output
Accessory output with N.O. and N.C.
Modbus communication (master)
Modbus communication (slave)
DIP Switch (SW2)
SW2-1
FP1 Selection – Low water coil temperature limit
setting for freeze detection. On = 30°F; Off = 15°F.
SW2-2 FP2 Selection – On = 30°F; Off = N/A
SW2-3 RV – O/B - thermostat type. Heat pump
thermostats with “O” output in cooling or “B”
output in Heating can be selected. On = O; Off = B.
SW2-4 Access Relay Operation (P2)
and 2-5
Access Relay Operation
Cycle with Blower
Cycle with Compressor
Water Valve Slow Opening
Cycle with Comm. T-stat Hum Cmd
29
SW2-4
ON
OFF
ON
OFF
SW2-5
ON
OFF
OFF
ON
ENVISION2 COMPACT INSTALLATION MANUAL
Controls - Aurora Base Control cont.
Cycle with Blower - The accessory relay will cycle with
the blower output.
Lockout – when locked out, the blower will operate
continuously in “G” speed, and PSC blower motor output
will remain on. The Alarm output (ALM) and Lockout output
(L) will be turned on. The fault type identification display
LED1 (Red) shall flash the fault code. To reset lockout
conditions with SW2-8 On, thermostat inputs “Y1”, “Y2”,
and “W” must be removed for at least 3 seconds. To reset
lockout conditions with SW2-8 Off, thermostat inputs “Y1”,
“Y2”, “W”, and “DH” must be removed for at least 3 seconds.
Lockout may also be reset by turning power off for at least
30 seconds or by enabling the emergency shutdown input
for at least 3 seconds.
Cycle with Compressor - The accessory relay will cycle
with the compressor output.
Water Valve Slow Opening - The accessory relay will
cycle and delay both the blower and compressor output
for 90 seconds.
SW2-6 CC Operation – selection of single or dual capacity
compressor. On = Single Stage; Off = Dual Capacity
SW2-7 Lockout and Alarm Outputs (P2) – selection of a
continuous or pulsed output for both the LO and
ALM Outputs. On = Continuous; Off = Pulsed
SW2-8 Future Use
Lockout With Emergency Heat - if the control is locked out
in the heating mode, and a Y2 or W input is received, the
control will operate in the emergency heat mode while the
compressor is locked out. The first emergency heat output will
be energized 10 seconds after the W input is received, and the
blower will shift to high speed. If the control remains locked
out, and the W input is present, additional stage of emergency
heat will stage on after 2 minutes. When the W input is
removed, all of the emergency heat outputs will turn off, and
the ECM blower will shift to “G” speed and PSC blower motor
output will remain on.
Alarm Jumper Clip Selection
From the factory, ALM is connected to 24 VAC via JW2. By
cutting JW2, ALM becomes a dry contact connected to ALG.
ECM Blower Speeds
The blower speeds can be changed either by using the
ECM manual configurations mode method or by using the
Aurora AID Tool directly (see Instruction Guide: Aurora
Interface and Diagnostics (AID) Tool topic).
High Pressure – fault is recognized when the Normally
Closed High Pressure Switch, P4-9/10 opens, no matter
how momentarily. The High Pressure Switch is electrically in
series with the Compressor Contactor and serves as a hardwired limit switch if an overpressure condition should occur.
Field Selectable Options via Software
(Selectable via the Aurora AID Tool)
ECM Blower Speeds
Low Pressure - fault is recognized when the Normally
Closed Low Pressure Switch, P4-7/8 is continuously open
for 30 seconds. Closure of the LPS any time during the 30
second recognition time restarts the 30 second continuous
open requirement. A continuously open LPS shall not be
recognized during the 2 minute startup bypass time.
An ECM blower motor can be driven directly using the
onboard PWM output. Four blower speeds are available,
based upon the “G”, Y1 (low), Y2 (high), and Aux input
signals to the board. The blower speeds can be changed
either by the ECM manual configurations mode method (see
ECM Configuration Mode topic) or by using the Aurora AID
Tool directly. All four blower speeds can be set to the same
speed if desired. Aux blower speed will remain at default or
current setting and requires the AID Tool for adjustment.
Loss of Charge – fault is recognized when the Normally
Closed Low Pressure Switch, P4-7/8 is open prior to the
compressor starting.
Condensate Overflow - fault is recognized when the
impedance between this line and 24 VAC common or chassis
ground drops below 100K ohms for 30 seconds continuously.
Safety Features
The following safety features are provided to protect the
compressor, heat exchangers, wiring and other components
from damage caused by operation outside of design conditions.
Freeze Detection (Coax) - set points shall be either 30°F
or 15°F. When the thermistor temperature drops below
the selected set point, the control shall begin counting
down the 30 seconds delay. If the thermistor value rises
above the selected set point, then the count should reset.
The resistance value must remain below the selected set
point for the entire length of the appropriate delay to be
recognized as a fault. This fault will be ignored for the initial
2 minutes of the compressor run time.
Fuse – a 3 amp automotive type plug-in fuse provides
protection against short circuit or overload conditions.
Anti-Short Cycle Protection – 4 minute anti-short cycle
protection for the compressor.
Random Start – 5 to 80 second random start upon power up.
Fault Retry – in the fault condition, the control will stage off
the outputs and then “try again” to satisfy the thermostat
Y input call. Once the thermostat input calls are satisfied,
the control will continue on as if no fault occurred. If 3
consecutive faults occur without satisfying the thermostat
Y input call, then the control will go to Lockout mode.
Freeze Detection (Air Coil) - uses the FP2 input to protect
against ice formation on the air coil. The FP2 input will
operate exactly like FP1 except that the set point is 30
degrees and is not field adjustable.
30
ENVISION2 COMPACT INSTALLATION MANUAL
Controls - Aurora Base Control cont.
Over/Under Voltage Shutdown - An over/under voltage
condition exists when the control voltage is outside the
range of 18 VAC to 30 VAC. If the over/under voltage
shutdown lasts for 15 minutes, the lockout and alarm relay
will be energized. Over/under voltage shutdown is selfresetting in that if the voltage comes back within range
of 18 VAC to 30 VAC for at least 0.5 seconds, then normal
operation is restored.
Cooling Operation
In all cooling operations, the reversing valve directly tracks
the O input. Thus, anytime the O input is present, the
reversing valve will be energized.
Cooling, 1st Stage (Y1, O) - The blower is started on “G”
speed immediately and the compressor is energized 10
seconds after the Y1 input is received. The ECM blower motor
is switched to low speed 15 seconds after the Y1 input.
Operation Description
Cooling, 2nd Stage (Y1, Y2, O) - The compressor will
be staged to full capacity 20 seconds after Y2 input
is received. The ECM blower will shift to high speed 15
seconds after the Y2 input is received.
Power Up - The unit will not operate until all the inputs and
safety controls are checked for normal conditions. The unit
has a 5 to 80 second random start delay at power up. Then
the compressor has a 4 minute anti-short cycle delay after
the random start delay.
Blower (G) - The blower will start immediately upon
receiving a thermostat G command. If there are no other
commands from the thermostat the ECM will run on “G”
speed until the G command is removed. Regardless of
blower input (G) from the thermostat, the blower will
remain on for 30 seconds at the end of each heating,
cooling, and emergency heat cycle.
Standby In standby mode, Y1, Y2, W, DH, and G are not
active. Input O may be active. The blower and compressor
will be off.
Heating Operation
Heating, 1st Stage (Y1) - The blower is started on “G” speed
immediately and the compressor is energized 10 seconds
after the Y1 input is received. The ECM blower motor is
switched to low speed 15 seconds after the Y1 input.
Dehumidification (Y1, O, DH or Y1, Y2, O, DH) - When a
DH command is received from the thermostat during a
compressor call for cooling the ECM blower speed will be
reduced by 15% to increase dehumidification.
Heating, 2nd Stage (Y1, Y2) - The compressor will be
staged to full capacity 20 seconds after Y2 input is
received. The ECM blower will shift to high speed 15
seconds after the Y2 input is received.
Emergency Shutdown - Four (4) seconds after a valid ES
input, P2-7 is present, all control outputs will be turned off
and remain off until the emergency shutdown input is no
longer present. The first time that the compressor is started
after the control exits the emergency shutdown mode,
there will be an anti-short cycle delay followed by a random
start delay. Input must be tied to common to activate.
Heating, 3rd Stage (Y1, Y2, W) - The hot water pump is deenergized and the first stage of electric heat is energized
10 seconds after the W command is received. If the
demand continues the second stage of electric heat will be
energized after 5 minutes.
Continuous Blower Operation - The blower output will
be energized any time the control has a G input present,
unless the control has an emergency shutdown input
present. The blower output will be turned off when G input
is removed.
Emergency Heat (W) - The blower will be started on “G”
speed, 10 seconds later the first stage of electric heat will
be turned on. 5 seconds after the first stage of electric
heat is energized the blower will shift to Aux speed. If the
emergency heat demand is not satisfied after 2 minutes the
second electric heat stage will be energized.
Load Shed - The LS input disables all outputs with the
exception of the blower output. When the LS input has been
cleared, the anti-short cycle timer and random start timer
will be initiated. Input must be tied to common to activate.
Blower (G) - The blower will start immediately upon
receiving a thermostat G command. If there are no other
commands from the thermostat the ECM will run on “G”
speed until the G command is removed. Regardless of
blower input (G) from the thermostat, the blower will
remain on for 30 seconds at the end of each heating cycle.
31
ENVISION2 COMPACT INSTALLATION MANUAL
Controls - Aurora Base Control cont.
Aurora ‘Base’ Control LED Displays
Aurora Interface and Diagnostics (AID) Tool
These three LEDs display the status, configuration, and
fault codes for the control. These can also be read in plain
English via the Aurora AID Tool.
The Aurora Interface and
Diagnostics (AID) Tool is
a device that is a member
of the Aurora network.
The AID Tool is used to
troubleshoot equipment
which uses the Aurora
control via Modbus RTU
communication. The AID
Tool provides diagnostics,
fault management, ECM
setup, and system configuration capabilities to the Aurora
family of controls. An AID Tool is recommended, although
not required, for ECM airflow settings. The AID Tool simply
plugs into the exterior of the cabinet in the AID Tool port.
Status LED (LED3, Green)
Fault LED, Green
ON
OFF
Slow Flash
Fast Flash
Flash Code 2
Flash Code 3
Flash Code 4
Flash Code 5
Flash Code 6
Flash Code 7
ABC Control Board Layout
Configuration LED (LED2, Yellow)
G
4
ACC – Dip 2
5
CC – Dual/Single
L – Pulse/Continuous
6
Status
RS485
Exp
G
EH2
C
EH1
C
CO
N/A
(+)
(-)
R
C
(+)
(-)
R
C
P11
LED 4
JW2 - Alarm
Com2
Acc – K6
P9
RS 485
Fan – K4
Alarm – K5
Com1
Factory Use
Factory
G
P8
C
C
3A-Fuse
W
DH
DH
Y2
G
G
C
R
Y1
Field Connections
P1
LO
ACC nc
ACC c
ACC no
ALG
Field Connections
LS
P2
ALM
Y1
Y1
C
C
Factory Fan Connection
O/B
LO
G
R
CC2
6.25 in.
ABC Basic Faults
LED 5 P7
CC Hi – K3
CC
R
5.5 in.
32
P6
AuroraTM Base
Control
CC – K2
F
7
SW2
CC2
P5
P3
8
Reheat/Normal
RV – K1
G
LO
HI
CCG
CC
FG
F
R
Config
5.75 in.
LED 3
3
ACC – Dip 1
EH1
Y
Factory
Fault
SW1 Test
2
FP2 – 15oF/30oF
RV – B/O
RS485 NET
R
W
LED Flash
Reset/
Red Fault LED
Lockout
Code*
Remove
Normal - No Faults
OFF
–
Fault - Input
1
No
Auto
Fault - High Pressure
2
Yes
Hard or Soft
Fault - Low Pressure
3
Yes
Hard or Soft
Fault - Freeze Detection FP2
4
Yes
Hard or Soft
Fault - Freeze Detection FP1
5
Yes
Hard or Soft
Fault - Condensate Overflow
7
Yes
Hard or Soft
Fault - Over/Under Voltage
8
No
Auto
Fault - FP1 & FP2 Sensor Error
11
Yes
Hard or Soft
NOTE: All codes >11 use long flash for tens digit and short flash for the ones
digit. 20, 30, 40, 50, etc. are skipped.
On
1 LED 2
Off
LED 1 FP1 – 15oF/30oF
ECM PWM
P13
Y2
Fault LED (LED1, Red)
P4
Factory
HP
HP
LP
LP
FP2
FP2
FP1
FP1
REV
REV
C
PWM
CFM
Configuration LED, Yellow
Flashing ECM Setting
Slow Flash
Fast Flash
ES
Description of Operation
No Software Overwritten
DIP Switch was Overwritten
ECM Configuration Mode
5.0 in.
O/B
Description of Operation
Normal Mode
Control is Non-functional
Test Mode
Lockout Active
Dehumidification Mode
(Future Use)
(Future Use)
Load Shed
ESD
(Future Use)
R
ENVISION2 COMPACT INSTALLATION MANUAL
Controls - UPC DDC Control (optional)
Aurora UPC Controller
ZS Series Sensors
and communicate to the heat pump thru a choice of 3
different communication protocols. The Aurora UPC has
the ability to communicate BACnet MS/TP, N2 open, or
LonWorks (requires LON Plugin card). This flexibility is
possible due to the onboard dipswitches which allow for the
desired protocol and baud rate to be selected in the field.
All zone temperatures and zone sensors are connected
to the UPC on an RNet bus, simplifying hook up at the
unit. RNet sensors can include a combination of zone
temperature and humidity, CO2, and VOC sensors. The
UPC includes built-in support for a custom configurable
keypad/display unit - BACview6 (4-line by 40 character
per line display) or BACview5 (2-line by 16 character per
line display). Up to 2 Keypad/display units can be mounted
remotely for configuration and troubleshooting.
The Aurora Unitary Protocol Converter (UPC) is designed
to add-on to any Aurora based heat pump control. The
Aurora Unitary Protocol Convertor (UPC) is designed
to allow water source heat pumps to be integrated into
Building Automation Systems (BAS) with ease. The
Aurora UPC is an integrated solution and communicates
directly with the Aurora Heat Pump Controls and allows
access/control of a variety of internal Aurora heat pump
operations such as sensors, relay operation, faults and
other information. In turn, the UPC then converts internal
Aurora Modbus protocol to BACnet MS/TP, LON, or N2
protocols and communicates to the BAS system. This
provides the great benefit of complete control integration
and a myriad of information available to the BAS from
the heat pump control. Plus it also allows individual unit
configuration such as ECM fan speeds or freeze protection
setting directly over the BAS without the need for access
to the actual heat pump. The Aurora UPC is programmed
using the powerful Eikon object oriented.
There are an extensive number of points that the UPC has
available over the network for integration into the BAS.
Control programmers need to carefully determine which
points they want to add into the BAS database. A list of
the BACnet points, N2 points, and LON SNVTs are available
along with their individual point descriptions by contacting
the Commercial Solutions Group at 1-877-677-4420.
The Aurora UPC is implemented with the Aurora Base
Controller (ABC) heat pump control into our latest water
source heat pumps. This will allow for a BAS to integrate
33
ENVISION2 COMPACT INSTALLATION MANUAL
Controls - UPC DDC Control (optional) cont.
N2
BAS
Modbus
BACnet
LonWorks
Rnet
Aurora UPC Features
Aurora UPC Optional Features
• Rugged enclosure made of GE C2950 Cycoloy plastic
• Built-in surge transient protection circuitry
• Operating range of -20° to 140°F; 10 to 95% relative humidity, non-condensing
• Onboard CR123A battery has a life of 10 years with 720
hours of cumulative power outage
• Multi-Protocol field selectable communication port
that supports:
• EIA-485 BACnet MS/TP @ 9600, 19.2k, 38.4k, 76.8k baud
• Metasys N2 Open
• LonWorks TP/FT-10 (Requires optional LON plug-in
communication card)
• Status of all unit operating conditions and fault lockouts
• Visual LED’s for status of power, network communication,
processor operation, and errors
• Provides gateway into Aurora heat pump controls for
unsurpassed control flexibility
• Network point for commanding unit into load shed
• Network point for commanding unit into
emergency shutdown
• Network points to assist in fan speed selection
• Network points for freeze protection settings
• Heating and cooling control from a remotely located
zone sensor
• Rnet communication port which allows for multiple Rnet
zone sensors (5) to be connected for space temperature
averaging if desired.
• Local laptop or BACview connection for field service
• FCC, UL and CE listed. BTL Certification is pending
• BACview handheld display, needed for field configuration
of fan speeds, set points, etc.
• AID Tool for Aurora ABC configuration
and troubleshooting.
• Aurora Advanced Control adds the Aurora AXB
expansion board and provides added I/O and
standard features
• Optional Sensor Kits (requires Aurora Advanced
Control with AXB - Future Availability on Select
Models/Configurations)
• Refrigeration Monitoring – provides Suction and
discharge pressure, Suction, liquid line temps and
superheat and subcooling.
• Performance Monitoring – provides entering and
leaving loop water temperatures, loop flow rate as well
as heat of extraction or rejection rate into the loop.
• Energy Monitoring – provides real-time power
measurement (Watt) of compressor, fan, auxiliary heat
and zone pump.
• Graphics packages available in the future
34
ENVISION2 COMPACT INSTALLATION MANUAL
Controls - UPC DDC Control (optional) cont.
Port 1a is used to
communicate to the
Building Automation
System (BAS). This
port’s settings are
configured through
the onboard dip
switches.
24Vac
Port 2 is used to communicate to the Aurora Base Controller
(ABC).
Dip switches for
configuring the
communication
port protocol
and baud rate
for the BAS port.
Port 1b is used for the
LonWorks plugin.
Rnet port is used
for communicating
zone sensors.
Mac address
is set by 2
rotary dials.
BACview or local
laptop connection.
Aurora Touch Interface
Utilizing a touch-screen interface, the UPC provides a
technician the ability to configure and diagnose equipment
at the unit or from any room sensor for added accessibility
and simpler troubleshooting. The technician will have
full access to equipment status, parameter values,
temperature, and humidity sensing as well as access to
alarm and trend history. With website-like navigation,
the Auora Touch Interface is easy to use and provides
important insight into the system so your building can
operate as efficiently as possible.
35
ENVISION2 COMPACT INSTALLATION MANUAL
Controls - UPC DDC Control (optional) cont.
1.
Leaving Air Temperature (LAT) Sensor – This 10 kOhm
NTC sensor is factory installed on all UPC equipped
heat pumps. It typically is attached to wiring inside
the blower cabinet on the suction side of the blower.
This sensor is attached on ABC FP2 pins available as
LAT AU-30.
1.
Compressor Proving Sensors – This optional factory
installed current sensor is connected to confirm
compressor operation via the power wires. The sensor
is attached at ABC Y1 and available at point BV-65.
Fan Proving Sensors – This optional factory installed
current sensor is connected to confirm fan operation
via the power wires. The sensor is attached at ABC G
and available at point BV-33.
1.
Occupancy Sensor - This standard feature includes a
field installed and wired room sensor with occupancy
sensor typically found in DDC systems. The RNet
room sensors can be found thru your commercial
representative. The occupancy Sensors are attached at
ABC 0 and can be found at point BV-49.
2.
Fault, Configuration, and Status Codes – The codes
can be visible to the BAS if desired
Aurora Base Fault Codes (ABC Only)
Fault LED (LED1, Red)
Valve End Switch – This optional input is setup for a field
installed flow valve end switch. This end switch input is
attached at ABC Y2 and available at point BV-67.
1.
Dirty Filter Switch – This optional field installed switch
is connected to confirm dirty filter operation. The
dirty filter switch can be found thru your commercial
representative. The sensor is attached at ABC W and
available at point BV-63.
LED Flash
Reset/
Lockout
Code*
Remove
Normal - No Faults
OFF
–
Fault - Input
1
No
Auto
Fault - High Pressure
2
Yes
Hard or Soft
Fault - Low Pressure
3
Yes
Hard or Soft
Fault - Freeze Detection FP2
4
Yes
Hard or Soft
Fault - Freeze Detection FP1
5
Yes
Hard or Soft
Fault - Condensate Overflow
7
Yes
Hard or Soft
Fault - Over/Under Voltage
8
No
Auto
Fault - FP1 & FP2 Sensor Error
11
Yes
Hard or Soft
NOTE: All codes >11 use long flash for tens digit and short flash for the ones
digit. 20, 30, 40, 50, etc. are skipped.
Red Fault LED
ABC Basic Faults
1.
1.
Aurora Advanced Fault Codes (ABC + AXB Expansion Board)
Fault LED (LED1, Red)
LED Flash
Reset/
Lockout
Fault Condition Summary
Code *
Remove
Normal - No Faults
Off
Fault-Input
1
No
Auto
Tstat input error. Autoreset upon condition removal.
Fault-High Pressure
2
Yes
Hard or Soft HP switch has tripped (>600 psi)
Fault-Low Pressure
3
Yes
Hard or Soft Low Pressure Switch has tripped (<40 psi for 30 continuous sec.)
Fault-Freeze Detection FP2
4
Yes
Hard or Soft Freeze protection sensor has tripped (<15 or 30 degF for 30 continuous sec.)
Fault-Freeze Detection FP1
5
Yes
Hard or Soft Freeze protection sensor has tripped (<15 or 30 degF for 30 continuous sec.)
Fault-Condensate Overflow
7
Yes
Hard or Soft Condensate switch has shown continuity for 30 continuous sec.
Fault-Over/Under Voltage
8
No
Auto
Instantaneous voltage is out of range. **Controls shut down until resolved.
Fault-FP1 & 2 Snsr Error
11
Yes
Hard or Soft If FP1 or 2 Sensor Error
Fault-Compressor Monitor
10
Yes
Hard or Soft Open Crkt, Run, Start or welded cont
Non-CriticAXBSnsrErr
13
No
Auto
Any Other Sensor Error
CriticAXBSnsrErr
14
Yes
Hard or Soft Sensor Error for EEV or HW
Alert-HotWtr
15
No
Auto
HW over limit or logic lockout. HW pump deactivated.
Fault-VarSpdPump
16
No
Auto
Alert is read from PWM feedback.
Not Used
17
No
Auto
IZ2 Com Fault. Autoreset upon condition removal.
Non-CritComErr
18
No
Auto
Any non-critical com error
Fault-CritComErr
19
No
Auto
Any critical com error. Auto reset upon condition removal
Alarm - Low Loop Pressure
21
No
Auto
Loop pressure is below 3 psi for more than 3 minutes
Alarm - Home Automation 1
23
No
Auto
Closed contact input is present on Dig 2 input - Text is configurable
Alarm - Home Automation 2
24
No
Auto
Closed contact input is present on Dig 3 input - Text is configurable
NOTES:
*All codes >11 use long flash for tens digit and short flash for the ones digit. 20, 30, 40, 50 etc. are skipped!
Alert’ is a noncritical sensor or function that has failed. Normal operation of the heat pump is maintained but service is desired at some point.
ABC & AXB Advanced Faults
ABC Basic Faults
Red Fault LED
36
ENVISION2 COMPACT INSTALLATION MANUAL
Controls - UPC DDC Control (optional) cont.
Aurora Base or Advanced Control Configuration and
Status Codes
Status LED (LED3, Green)
Description of Operation
Normal Mode
Control is Non-functional
Test Mode
Lockout Active
Dehumidification Mode
Load Shed
Emergency Shutdown
On Peak Mode
(Future Use)
(Future Use)
Fault LED, Green
ON
OFF
Slow Flash
Fast Flash
Flash Code 2
Flash Code 5
Flash Code 6
Flash Code 7
Flash Code 8
Flach Code 9
Configuration LED (LED2, Yellow)
Description of Operation
No Software Overwritten
DIP Switch Overwritten
ECM Configuration Mode
Reset Configuration Mode
9.
Configuration LED, Yellow
ECM Setting
Slow Flash
Fast Flash
OFF
Alarm Relay – The Alarm relay (ALM) is factory
connected to 24 VAC via jumper JW2. By cutting JW2,
ABC ALM becomes a dry contact connected to ABC
ALG. The Relay is field switchable between Factory
setting as an Alarm output or available for other uses.
10. Accessory Relay1 – A configurable, accessory relay
on the ABC is provided that can be cycled with the
compressor, blower, or the Dehumidifier (DH) input.
A third (factory) setting cycles the relay with the
compressor but delays the compressor and blower
output for 90 sec. Source pump or slow opening
solenoid valves in well systems or variable speed
primary pumping systems would be a prime use of
this feature.
Access Relay Operation
Cycle with Blower
Cycle with Compressor
Water Valve Slow Opening
Cycle with Comm. T-stat Hum Cmd
SW2-4
ON
OFF
ON
OFF
SW2-5
ON
OFF
OFF
ON
11. Electric Heat EH1 – A digital 24VDC output is provided
for electric heat powering. UPC’s Default programming
has EH1 set for AUX/ELEC Heat operation and will be
controlled using the UPC’s internal P.I.D. logic. However
it can be changed by the BAS to be network controlled.
12. Electric Heat EH2 – A digital VDC output is provided
for field options converted from the original EH2
output. Default UPC program has the EH2 output set
for Network Control but can be changed by the BAS
to be controlled by the UPC’s internal P.I.D. logic.
37
ENVISION2 COMPACT INSTALLATION MANUAL
Controls - UPC DDC Control (optional) cont.
Aurora Advanced Control Configuration and Options
(Future Availability on Select Models/Configurations)
1.
Accessory Relay2 – A second, configurable, accessory
relay on the AXB is provided that can be cycled with
the compressor 1 or 2 , blower, or the Dehumidifier (DH)
input. This is to complement the Accessory 1 Relay on
the ABC board.
Position
1
DIP 4
ON
DIP 5
ON
2
OFF
ON
3
ON
OFF
4
OFF
OFF
Description
Cycles with Fan or ECM (or G)
Cycles with CC1 first stage of compressor
or compressor spd 1-12
Cycles with CC2 second stage of
compressor or compressor spd 7-12
Cycles with DH input from ABC board
2.
Analog Out – A standard 0-10VDC analog output is
provided. This output can be used to drive modulating dampers etc.
3.
Variable Speed Pump or Modulating Water Valve
- This input and output are provided to drive and
monitor a variable speed pump. The VS pump output
is a PWM signal to drive the variable speed pump. The
minimum and maximum level are set using the AID
Tool. 75% and 100% are the default settings respectively. The VS data input allows a separate PWM signal
to return from the pump giving fault and performance
information. Fault received from the variable speed
pump will be displayed as E16. Modulating Water
Valve - This Variable speed PWM output is provided to
optionally drive a modulating water valve. Through advanced design a 0-10VDC valve can be driven directly
from the VS pump output. The minimum and maximum level are set in the same way as the VS pump
using the AID Tool. 75% and 100% are the default settings respectively.
4.
Loop Pump Slaving - This input and output are provided so that two units can be slaved together with a
common flow center. When either unit has a call for
loop pump, both unit’s loop pump relays and variable
speed pumps are energized. The flow center then can
simply be wired to either unit. The output from one
unit should be routed to the input of the other. If daisy
chained up to 16 heat pumps can be wired and slaved
together in this fashion.
38
ENVISION2 COMPACT INSTALLATION MANUAL
Controls - UPC DDC Control (optional) cont.
Aurora Advanced Control Optional Sensor Kits (Future
Availability on Select Models/Configurations)
1.
Energy Monitoring (Standard Sensor Kit on
‘Advanced’ models) - The Energy Monitoring Kit
includes two current transducers (blower and electric
heat) added to the existing two compressor sensors so
that the complete power usage of the heat pump can
be measured. The BACview Tool provides configuration
detail for the type of blower motor and a line voltage
calibration procedure to improve the accuracy. This
real time power usage information can be displayed on
the AID Tool and is available thru network points when
using BACnet or N2 Open.
•
Compressor Current 1
•
Compressor Current 2
•
Fan Current
•
Aux Heat Current
•
Pump Selection
•
Voltage
•
Compressor Watts
•
Fan Watts
•
Aux Heat Watts
•
Pump Watts (VS Only)
2.
Refrigerant Monitoring (optional sensor kit) - The
optional Refrigerant Monitoring Kit includes two
pressure transducers, and three temperature sensors,
heating liquid line, suction temperature and existing
cooling liquid line (FP1). These sensors allow the
measurement of discharge and suction pressures,
suction and liquid line temperatures as well as
superheat and subcooling. This information can be
displayed on the BACview Tool, or the network when
using BACnet and N2.
•
Htg Liquid Line
•
Clg Liquid Line
•
Discharge pressure
•
Suction Pressure
•
Discharge Saturated Temp
•
Suction Saturated Temperature
•
Superheat
•
SubCooling
3.
39
Performance Monitoring (optional sensor kit) - The
optional Performance Monitoring Kit includes: three
temperature sensors, entering and leaving water,
leaving air temperature and a water flow rate sensor.
With this kit, heat of extraction and rejection will
be calculated. This requires configuration using the
BACview Tool for selection of water or antifreeze.
•
Leaving Air Temperature (supply)
•
Alt Leaving Air Temperature (Supply)
•
Entering Water Temperature
•
Leaving Water Temperature
•
Water Flow Meter
•
Entering Air Temperature (from zone sensor)
•
Brine Selection (water/antifreeze)
•
Heat of Extraction/Rejection
ENVISION2 COMPACT INSTALLATION MANUAL
Controls - UPC DDC Control (optional) cont.
This is done using (2) 18 AWG twisted pair unshielded
cables for a total of 4 wires connected to the Rnet port.
The sensor gets its power from the UPC controller and
connecting multiple sensors to one UPC will allow for space
temperature averaging. The UPC can support one ZS Pro
or ZS Pro F with up to four ZS standard sensors wired to
the Rnet port on the UPC for a total of 5 zone sensors.
The sensors use a precise 10k ohm thermistor with less
than 0.18°F drift over a ten year span, this allows for less
maintenance or re-calibration after installation. The sensors
also have a hidden communication port for connecting
a BACview or local laptop that provides access to the
equipment for commissioning and maintenance. The table
below shows the features of each of the four sensors that
are currently available.
ZS Series RNet Sensor Overview
The ZS Series line of intelligent zone sensors provides the
function and flexibility you need to manage the conditions
important to the comfort and productivity of the zone
occupants. The ZS sensors are available in a variety of
zone sensing combinations to address your application
needs. These combinations include temperature, relative
humidity, and indoor air quality (carbon dioxide or VOCs
(Volatile Organic Compounds)). They are built to be
flexible allowing for easy customization of what the user/
technician sees. Designed to work with the Aurora UPC
controllers the ZS sensor line includes the ZS Base, ZS
Plus, ZS Pro and ZS Pro-F.
The UPC uses a proprietary communication called Rnet
to receive the space temperature from the zone sensor.
ZS Base
ZS Pro-F
ZS Plus
ZS Pro
Features
2
ZS Base
ZS Plus
ZS Pro
ZS Pro-F
Temp, CO , Humidity, and VOC Options
√
√
√
√
Neutral Color
√
√
√
√
Addressable/supports daisy chaining
√
√
√
√
Hidden communication port
√
√
√
√
Mounts on a standard 2” by 4” electrical box
√
√
√
√
Occupancy Status indicator LED
√
√
√
Push button occupancy override
√
√
√
Setpoint adjust
√
√
√
Large, easy to read LCD
√
√
Alarm indicator
√
Options
Temperature Only
Temp with CO2
Temp with Humidity
√
√
°F to °C conversion button
Part Number
Part Number
Part Number
Part Number
ZSU
ZSUPL
ZSUP
ZSUPF
ZSU-C
ZSUPL-C
ZSUP-C
ZSUPF-C
ZSU-H
ZSUPL-H
ZSUP-H
ZSUPF-H
Temp with Humidity, CO2
ZSU-HC
ZSUPL-HC
ZSUP-HC
ZSUPF-HC
Temp, Humidity, VOC
ZSU-HV
ZSUPL-HV
ZSUP-HV
ZSUPF-HV
ZSU-V
ZSUPL-V
ZSUP-V
ZSUPF-V
Temp with VOC
40
ENVISION2 COMPACT INSTALLATION MANUAL
Controls - UPC DDC Control (optional) cont.
RNet Sensor Physical and Electrical Data
Sensing Element
Range
Accuracy
Temperature (on non-Humidity models)
-4° to 122° F (-20° C to 50° C)
±0.35° F (0.2° C)
Temperature (on Humidity models)
Humidity
50° F to 104° F (10° C to 40° C)
±0.5° F (0.3° C)
10% to 90%
±1.8% typical
400 to 1250 PPM
±30PPM or +/-3% of reading (greater of two)
1250 to 2000 PPM
±5% of reading plus 30 PPM
VOC
0 to 2,000 PPM
±100 PPM
Power Requirements
Sensor Type
Temperature Only
All Models
CO2
Temperature with Humidity
All Models
Temp with VOC, or Temp/VOC/Humidity
All Models
Temp with CO2 , or Temp/ CO2/Humidity
Power Supply
Communication
Power Required
12 Vdc @ 8 mA
12 Vdc @ 15 mA (idle) to 190 mA
(CO2 measurement cycle)
12 Vdc @ 60 mA
12 Vdc @ 15 mA (idle) to 190 mA
All Models
(CO2 measurement cycle)
A controller supplies the Rnet sensor network with 12 Vdc @ 210 mA. Additional
power may be required for your application. See sensor ZS Installation Guide
115 kbps Rnet connection between sensor(s) and controller
15 sensors max per Rnet network; 5 sensors max per control program
Local Access Port
For connecting a laptop computer to the local equipment for maintenance and commissioning
Environmental Operating Range
32° to 122° F (0° - 50° C), 10% to 90% relative humidity, non-condensing
Mounting Dimensions
Standard 4”x 2” electrical box using provided 6/32” x 1/2” mounting screws
41
ENVISION2 COMPACT INSTALLATION MANUAL
Unit Startup
Before Powering Unit, Check The Following:
NOTE: Remove and discard the compressor shipping bolts. The bolts can then be discarded.
• 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.
• Blower rotates freely – foam shipping support has been removed.
• Blower speed correct.
• Air filter/cleaner is clean and in position.
• Service/access panels are in place.
• Return air temperature is between 50-80°F heating and 60-95°F cooling.
• Check air coil cleanliness to 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. Cooling will energize after a time delay. Check for correct rotation of scroll compressors in 3 phase applications.
Incorrect rotation will cause low refrigerant pressures and possibly unusual noise. Switch any two power leads at the
line voltage supply.
4. Be sure that the compressor and water control valve or loop pump(s) are activated.
5. 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 the pressure drop table.
6. Check the temperature of both the supply and discharge water (Refer to Operating Parameters tables).
7. Check for an air temperature drop of 15°F to 25°F across the air coil, depending on the blower speed and entering
water temperature.
8. Decrease the cooling set point several degrees and verify high-speed blower operation (variable speed ECM only).
9. Adjust the cooling setpoint above the room temperature and verify that the compressor and water valve or loop
pumps deactivate.
10. Initiate a control signal to place the unit in the heating mode. Heating set point must be set above room temperature.
11. Heating will energize after a time delay.
12. Check the temperature of both the supply and discharge water (Refer to Unit Operating Parameters tables).
13. Check for an air temperature rise of 20°F to 35°F across the air coil, depending on the blower speed and entering
water temperature.
14. If auxiliary electric heaters are installed, increase the heating setpoint until the electric heat banks are sequenced on.
All stages of the auxiliary heater should be sequenced on when the thermostat is in the Emergency Heat mode.
Check amperage of each element.
15. Adjust the heating setpoint below room temperature and verify that the compressor and water valve or loop
pumps deactivate.
16. During all testing, check for excessive vibration, noise or water leaks. Correct or repair as required.
17. Set system to desired normal operating mode and set temperature to maintain desired comfort level.
18. 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.
42
ENVISION2 COMPACT INSTALLATION MANUAL
Operating Limits
Cooling
(°F)
(°C)
Operating Limits
Air Limits
Min. Ambient Air
45
Rated Ambient Air
80
Max. Ambient Air
100
Min. Entering Air
50
Rated Entering Air db/wb 80.6/66.2
Max. Entering Air db/wb
110/83
Water Limits
Min. Entering Water
30
Normal Entering Water
50-110
Max. Entering Water
120
Heating
(°F)
(°C)
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
-1.1
10-43.3
48.9
20
30-70
90
-6.7
-1.1
32.2
NOTE: Minimum/maximum limits are only for start-up conditions, and
are meant for bringing the space up to occupancy temperature. Units
are not designed to operate at the minimum/maximum conditions on
a regular basis. The operating limits are dependant upon three primary
factors: 1) water temperature, 2) return air temperature, and 3) ambient
temperature. When any of the factors are at the minimum or maximum
levels, the other two factors must be at the normal level for proper and
reliable unit operation.
Operating Parameters
Single Speed Models
Entering Water
Temp °F
30
50
70
90
110
Entering Water
Temp °F
30
50
70
90
110
Water Flow
gpm/ton
1.5
3.0
1.5
3.0
1.5
3.0
1.5
3.0
1.5
3.0
Water Flow
gpm/ton
1.5
3.0
1.5
3.0
1.5
3.0
1.5
3.0
1.5
3.0
Cooling -- No Hot Water Generation
Suction Pressure
psig
115 - 125
105 - 120
130 - 140
128 - 138
138 - 148
136 - 146
145 - 155
143 - 153
145 - 155
143 - 153
Discharge Pressure psig
150 - 170
130 - 145
215 - 235
190 - 210
280 - 310
250 - 280
350 - 380
320 - 350
420 - 450
405 - 435
Suction Pressure
psig
73 - 85
77 - 90
97 - 110
102 - 115
130 - 145
135 - 150
150 - 160
155 - 165
Discharge Pressure psig
270 - 305
280 - 315
290 - 325
300 - 335
320 - 355
325 - 360
350 - 390
365 - 405
Superheat
Subcooling
20 - 35
20 - 35
12 - 20
12 - 20
10 - 16
10 - 16
9 - 14
9 - 14
9 - 14
9 - 14
10 - 17
10 - 17
8 - 14
8 - 14
10 - 16
8 - 14
10 - 16
8 - 14
10 - 16
8 - 14
Water Temp Rise
°F
17 - 22
8 - 10
16 - 22
8 - 12
15 - 21
7 - 13
14 - 20
6 - 10
14 - 20
6 - 10
Air Temp Drop
°F DB
17 - 23
17 - 23
17 - 23
17 - 23
17 - 23
17 - 23
17 - 23
17 - 23
17 - 23
17 - 23
Water Temp Drop
°F
6 - 10
4-8
9 - 13
7 - 11
10 - 14
8 - 12
10 - 14
8 - 12
Air Temp Rise
°F DB
15 - 21
17 - 23
22 - 28
24 - 30
30 - 36
32 - 38
30 - 36
32 - 38
Heating - No Hot Water Generation
Superheat
Subcooling
8 - 14
8 - 14
10 - 16
10 - 16
13 - 19
13 - 19
13 - 19
13 - 19
3 - 10
3 - 10
3 - 10
3 - 10
3 - 10
3 - 10
3 - 10
3 - 10
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.
43
2/15/12
ENVISION2 COMPACT INSTALLATION MANUAL
Operating Parameters cont.
Dual Capacity Models
First Stage Operation
Entering Water
Temp °F
30
50
70
90
110
Entering Water
Temp °F
30
50
70
90
110
Water Flow
gpm/ton
1.5
3.0
1.5
3.0
1.5
3.0
1.5
3.0
1.5
3.0
Water Flow
gpm/ton
1.5
3.0
1.5
3.0
1.5
3.0
1.5
3.0
1.5
3.0
Cooling -- No Hot Water Generation
Suction Pressure
psig
105 - 120
100 - 115
125 - 140
120 - 135
135 - 145
133 - 143
142 - 152
140 - 150
152 - 158
148 - 153
Discharge Pressure psig
140 - 155
115 - 130
205 - 225
180 - 200
280 - 290
250 - 260
345 - 355
330 - 340
405 - 435
390 - 420
Suction Pressure
psig
76 - 84
80 - 88
100 - 115
105 - 120
135 - 150
140 - 155
155 - 165
160 - 170
Discharge Pressure psig
270 - 285
275 - 290
280 - 310
290 - 315
310 - 325
315 - 330
330 - 370
340 - 380
Superheat
Subcooling
20 - 35
20 - 35
12 - 20
12 - 20
10 - 16
10 - 16
8 - 12
8 - 12
8 - 12
8 - 12
9 - 17
9 - 17
8 - 14
8 - 14
8 - 14
8 - 14
8 - 14
8 - 14
8 - 14
8 - 14
Water Temp Rise
°F
17 - 21
8 - 12
17 - 21
8 - 12
16 - 20
9 - 13
14 - 20
8 - 12
14 - 20
8 - 12
Air Temp Drop
°F DB
17 - 23
17 - 23
17 - 23
17 - 23
17 - 23
17 - 23
17 - 23
17 - 23
17 - 23
17 - 23
Water Temp Drop
°F
5-9
3-7
7 - 11
5-9
8 - 12
6 - 10
8 - 12
6 - 10
Air Temp Rise
°F DB
12 - 16
14 - 18
18 - 22
20 - 24
24 - 28
22 - 30
24 - 28
22 - 30
Heating -- No Hot Water Generation
Superheat
Subcooling
8 - 12
8 - 12
10 - 14
10 - 14
12 - 16
12 - 16
12 - 16
12 - 16
3 - 10
3 - 10
3 - 10
3 - 10
3 - 10
3 - 10
3 - 10
3 - 10
2/15/12
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.
Second Stage Operation
Entering Water Water Flow gpm/
Suction Pressure
Temp °F
ton
psig
1.5
115 - 125
30
3.0
105 - 120
1.5
130 - 140
50
3.0
128 - 138
1.5
138 - 148
70
3.0
136 - 146
1.5
145 - 155
90
3.0
143 - 153
1.5
145 - 155
110
3.0
143 - 153
Entering Water Water Flow gpm/
Suction Pressure
Temp °F
ton
psig
1.5
73 - 85
30
3.0
77 - 90
1.5
97 - 110
50
3.0
102 - 115
1.5
130 - 145
70
3.0
135 - 150
1.5
150 - 160
90
3.0
155 - 165
1.5
110
3.0
Cooling -- No Hot Water Generation
Discharge Pressure psig
150 - 170
130 - 145
215 - 235
190 - 210
280 - 310
250 - 280
350 - 380
320 - 350
420 - 450
405 - 435
Superheat
Subcooling
20 - 35
20 - 35
12 - 20
12 - 20
10 - 16
10 - 16
9 - 14
9 - 14
9 - 14
9 - 14
10 - 17
10 - 17
8 - 14
8 - 14
10 - 16
8 - 14
10 - 16
8 - 14
10 - 16
8 - 14
Water Temp Rise
°F
17 - 22
8 - 10
16 - 22
8 - 12
15 - 21
7 - 13
14 - 20
6 - 10
14 - 20
6 - 10
Air Temp Drop
°F DB
17 - 23
17 - 23
17 - 23
17 - 23
17 - 23
17 - 23
17 - 23
17 - 23
17 - 23
17 - 23
Water Temp Drop
°F
6 - 10
4-8
9 - 13
7 - 11
10 - 14
8 - 12
10 - 14
8 - 12
Air Temp Rise
°F DB
15 - 21
17 - 23
22 - 28
24 - 30
30 - 36
32 - 38
30 - 36
32 - 38
Heating -- No Hot Water Generation
Discharge Pressure psig
270 - 305
280 - 315
290 - 325
300 - 335
320 - 355
325 - 360
350 - 390
365 - 405
Superheat
Subcooling
8 - 14
8 - 14
10 - 16
10 - 16
13 - 19
13 - 19
13 - 19
13 - 19
3 - 10
3 - 10
3 - 10
3 - 10
3 - 10
3 - 10
3 - 10
3 - 10
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.
44
2/15/12
ENVISION2 COMPACT INSTALLATION MANUAL
Pressure Drop
Single Speed
Model
009
012
015
018
024
030
036
042
048
060
070
gpm
1.5
2.0
3.0
4.0
1.5
2.5
3.5
4.5
2.0
3.0
4.0
5.0
3.0
4.0
5.0
6.0
3.0
4.5
6.0
8.0
4.0
6.0
8.0
10.0
5.0
7.0
9.0
12.0
5.0
8.0
11.0
14.0
6.0
9.0
12.0
16.0
9.0
12.0
15.0
20.0
12.0
15.0
18.0
24.0
30°F
1.9
3.5
6.9
12.0
0.3
1.0
1.7
2.5
0.6
1.6
2.6
3.7
1.6
2.9
4.2
6.0
1.1
2.1
4.1
4.5
1.5
3.0
5.1
7.7
1.0
2.1
3.6
6.3
0.8
2.1
4.2
7.6
1.1
2.3
3.9
6.7
2.4
3.9
5.7
9.5
3.0
4.4
6.0
9.7
Pressure Drop (psi)
50°F
70°F
90°F
1.8
1.7
1.6
3.4
3.2
3.1
6.5
6.3
6.0
11.4
11.0
10.8
0.3
0.3
0.3
1.0
1.0
1.0
1.7
1.7
1.6
2.4
2.4
2.4
0.6
0.6
0.6
1.6
1.6
1.6
2.6
2.6
2.6
3.7
3.6
3.6
1.6
1.5
1.5
2.9
2.8
2.8
4.2
4.1
4.0
5.8
5.7
5.6
1.1
0.9
0.8
2.0
1.8
1.7
4.0
3.8
3.7
4.4
4.1
3.9
1.4
1.3
1.2
2.8
2.7
2.5
4.8
4.5
4.2
7.2
6.8
6.3
1.0
0.9
0.8
1.9
1.8
1.7
3.3
3.0
2.8
5.9
5.5
5.1
0.7
0.7
0.7
2.1
1.9
1.8
4.1
3.8
3.5
6.7
6.3
5.8
1.0
1.0
0.9
2.1
2.0
1.9
3.7
3.4
3.2
6.3
5.9
5.5
2.2
2.1
2.0
3.6
3.4
3.2
5.3
5.0
4.7
8.9
8.3
7.8
2.8
2.6
2.4
4.0
3.8
3.5
5.5
5.1
4.8
9.1
8.5
7.9
Valve
110°F
1.5
3.0
5.7
10.5
0.3
1.0
1.6
2.3
0.6
1.6
2.5
3.5
1.4
2.7
3.9
5.5
0.6
1.5
3.5
3.7
1.1
2.3
3.9
5.8
0.8
1.6
2.6
4.8
0.6
1.7
3.3
5.4
0.8
1.7
3.0
5.1
1.8
2.9
4.3
7.2
2.2
3.3
4.4
7.3
3/16/12
1/2 in.
1/2 in.
3/4 in.
3/4 in.
3/4 in.
3/4 in.
1 in.
1 in.
1 in.
1 in.
1 in.
gpm
Cv
1.5
2.0
3.0
4.0
1.5
2.5
3.5
4.5
2.0
3.0
4.0
5.0
3.0
4.0
5.0
6.0
3.0
4.5
6.0
8.0
4.0
6.0
8.0
10.0
5.0
7.0
9.0
12.0
5.0
8.0
11.0
14.0
6.0
9.0
12.0
16.0
9.0
12.0
15.0
20.0
12.0
15.0
18.0
24.0
9.6
9.7
9.9
10.1
9.6
9.8
10.0
10.2
9.7
9.9
10.1
10.4
9.9
10.1
10.4
10.6
9.9
10.2
10.6
11.0
10.1
10.6
11.0
11.5
15.9
16.6
17.2
17.9
15.9
16.6
17.2
17.9
16.1
16.8
17.4
18.3
16.8
17.4
18.1
19.2
17.4
18.1
18.7
20.1
gpm
Cv
4.0
6.0
8.0
10.0
5.0
7.0
9.0
12.0
6.0
9.0
12.0
15.0
9.0
12.0
16.0
20.0
12.0
15.0
18.0
24.0
10.1
10.6
11.0
11.5
10.4
10.8
11.2
11.9
16.1
16.8
17.4
18.1
16.8
17.4
18.3
19.2
17.4
18.1
18.7
20.1
Pressure
Drop (psi)
0.02
0.04
0.09
0.16
0.02
0.06
0.12
0.19
0.04
0.09
0.16
0.23
0.09
0.16
0.23
0.32
0.09
0.19
0.32
0.53
0.16
0.32
0.53
0.76
0.10
0.23
0.41
0.61
0.10
0.23
0.41
0.61
0.14
0.29
0.47
0.76
0.29
0.47
0.69
1.09
0.47
0.69
0.92
1.43
3/16/12
Dual Capacity
Model
026
038
049
064
072
gpm
4.0
6.0
8.0
10.0
5.0
7.0
9.0
11.0
6.0
9.0
12.0
15.0
8.0
12.0
16.0
20.0
12.0
15.0
18.0
21.0
30°F
1.4
2.8
4.7
7.0
1.2
2.2
3.4
4.9
1.2
2.4
3.9
5.7
1.8
3.8
6.5
9.7
3.2
4.5
6.0
7.8
Pressure Drop (psi)
50°F
70°F
90°F
1.3
1.2
1.1
2.6
2.4
2.3
4.4
4.1
3.8
6.6
6.2
5.8
1.2
1.1
1.0
2.1
1.9
1.8
3.2
3.0
2.8
4.6
4.3
4
1.2
1.1
1.0
2.2
2.1
2.0
3.6
3.4
3.2
5.3
5
4.7
1.7
1.6
1.4
3.5
3.3
3.0
6.0
5.6
5.2
9.1
8.5
8.0
3.0
2.8
2.6
4.2
4.0
3.7
5.7
5.3
4.9
7.3
6.8
6.4
Valve
110°F
1.0
2.1
3.5
5.3
1.0
1.7
2.6
3.7
1.0
1.8
2.9
4.3
1.3
2.8
4.8
7.4
2.4
3.4
4.6
5.9
3/16/12
3/4 in.
3/4 in.
1 in.
1 in.
1 in.
45
Pressure
Drop (psi)
0.16
0.32
0.53
0.76
0.23
0.42
0.64
1.02
0.14
0.29
0.47
0.69
0.29
0.47
0.76
1.09
0.47
0.69
0.92
1.43
3/16/12
ENVISION2 COMPACT INSTALLATION MANUAL
Reference Calculations
Heating Calculations:
Cooling Calculations:
HR
gpm x 500
LWT = EWT -
HE
gpm x 500
LWT = EWT +
LAT = EAT +
HC
cfm x 1.08
LAT(DB) = EAT(DB) -
SC
cfm x 1.08
LC = TC - SC
TH = HC + HWC
S/T =
SC
TC
Legend
ABBREVIATIONS AND DEFINITIONS:
cfm
EWT
gpm
WPD
EAT
=
=
=
=
=
HC
TC
SC
KW
HR
=
=
=
=
=
airflow, cubic feet/minute
entering water temperature, Fahrenheit
water flow in gallons/minute
water pressure drop, PSI and feet of water
entering air temperature, Fahrenheit
(dry bulb/wet bulb)
air heating capacity, MBtu/h
total cooling capacity, MBtu/h
sensible cooling capacity, MBtu/h
total power unit input, kilowatts
total heat of rejection, MBtu/h
HE
= total heat of extraction, MBtu/h
HWC = hot water generator capacity, MBtu/h
EER = Energy Efficient Ratio
= BTU output/Watt input
COP = Coefficient of Performance
= BTU output/BTU input
LWT = leaving water temperature, °F
LAT = leaving air temperature, °F
TH
= total heating capacity, MBtu/h
LC
= latent cooling capacity, MBtu/h
S/T = sensible to total cooling ratio
Refrigerant Circuit Guideline
Head
Pressure
Under Charged System (Possible Leak)
Low
Over Charged System
High
Low Air Flow Heating
High
Low Air Flow Cooling
Low
Low Water Flow Heating
Low/Normal
Low Water Flow Cooling
High
High Air Flow Heating
Low
High Air Flow Cooling
Low
High Water Flow Heating
Normal
High Water Flow Cooling
Low
Low Indoor Air Temperature Heating
Low
Low Indoor Air Temperature Cooling
Low
High Indoor Air Temperature Heating
High
High Indoor Air Temperature Cooling
High
Restricted TXV (Check Service Advisory)
High
Insufficient Compressor (Possible Bad Valves)
Low
TXV - Bulb Loss of Charge
Low
Scaled Coaxial Heat Exchanger Heating
Low
Scaled Coaxial Heat Exchanger Cooling
High
Restricted Filter Drier
Symptom
Suction
Compressor
Air Temp.
Water Temp.
Superheat
Subcooling
Pressure
Amp Draw
Differential
Differential
Low
Low
High
Low
Low
Low
High
High
Normal
High
Normal/Low
Normal
High
High
High/Normal
Low
High
Low
Low
Low
Low/Normal
High
High
Low
Low/Normal
Low
Low
High
Low
High
High
High
High
Low
Low
High
Low
Low
Low
High
Low
Low
High
Normal
High
Low
Low
Normal
Low
Normal
High
Normal
Normal
Low
Low
Low
Low
High
Normal
Low
Low
Low
Normal
High
Normal
Normal/High
Low
Low
Normal/Low
High
Low
Low
High
High
Normal/High Normal/Low
Low
Normal
High
High
High
Low
Low
High
Low
Normal/Low
High
High
Low
Low
High
Low
High
Normal/High
Low
Low
Low
Low
High
High
Low
Low
Low
Low
Normal/Low
High
Low
Low
High
High
Normal/Low
Low
Low
Low
Check temperature difference (delta T) across filter drier.
7/6/10
46
ENVISION2 COMPACT INSTALLATION MANUAL
Compressor Resistance
Dual Capacity
Single Speed
Model
009
012
015
018
024
030
036
042
048
060
070
208-230/60/1
Run
Start
3.65 - 4.19
3.75 - 4.31
3.35 - 3.85
2.80 - 3.22
2.74 - 3.16
2.60 - 3.00
2.24 - 2.58
2.84 - 3.26
1.21 - 1.39
1.53 - 1.75
1.21 - 1.39
1.53 - 1.75
0.95 - 1.09
1.81 - 2.09
0.83 - 0.95
1.54 - 1.78
0.51 - 0.59
1.13 - 1.31
0.42 - 0.48
0.73 - 0.85
0.33 - 0.39
0.90 - 1.04
265/60/1
Run
Start
3.73 - 4.27
4.45 - 5.13
3.73 - 4.27
4.45 - 5.13
3.03 - 3.49
2.39 - 2.75
3.03 - 3.49
2.39 - 2.75
1.38 - 1.58
2.02 - 2.32
1.38 - 1.58
2.02 - 2.32
1.24 - 1.42
2.42 - 2.78
n/a
n/a
n/a
n/a
208-230/60/3
460/60/3
575/60/3
n/a
n/a
n/a
n/a
2.00 - 2.30
2.00 - 2.30
1.77 - 2.04
1.42 - 1.64
0.96 - 1.10
0.63 - 0.73
0.56 - 0.64
n/a
n/a
n/a
n/a
8.00 - 9.20
8.00 - 9.20
7.57 - 8.71
5.46 - 6.28
3.88 - 4.46
2.98 - 3.42
2.34 - 2.70
n/a
n/a
n/a
n/a
n/a
n/a
n/a
8.26 - 9.50
5.88 - 6.76
4.96 - 5.70
3.48 - 4.00
026
1.21 - 1.39
1.52 - 1.75
1.38 - 1.58
2.02 - 2.32
2.00 - 2.30
8.00 - 9.20
n/a
038
0.82 - 0.94
1.41 - 1.63
1.13 - 1.31
1.07 - 1.23
1.42 - 1.64
5.46 - 6.28
n/a
049
0.48- 0.56
1.73 - 1.99
n/a
0.96 - 1.10
3.88 - 4.46
n/a
064
0.36 - 0.42
1.52 - 1.74
n/a
0.63 - 0.73
2.98 - 3.42
n/a
072
0.32 - 0.36
1.72 - 1.98
n/a
0.56 - 0.64
2.34 - 2.70
n/a
3/16/12
Thermistor Resistance
Thermistor
Temperature (°F)
5
14
23
32
41
50
59
68
77
86
95
104
113
122
131
140
149
Microprocessor
Resistance (Ohms)
75757-70117
57392-53234
43865-40771
33809-31487
26269-24513
20570-19230
16226-15196
12889-12093
10310-9688
8300-7812
6723-6337
5480-5172
4490-4246
3700-3504
3067-2907
2554-2424
2149-2019
7/6/10
47
ENVISION2 COMPACT INSTALLATION MANUAL
Heat of Extraction/Rejection Data
Single Speed
Model
gpm
1.5
2.0
3.0
1.5
2.5
3.5
2.0
3.0
4.0
3.0
4.0
5.0
3.0
4.5
6.0
4.0
6.0
8.0
5.0
7.0
9.0
5.0
8.0
11.0
6.0
9.0
12.0
9.0
12.0
15.0
12.0
15.0
18.0
009
012
015
018
024
030
036
042
048
060
070
30°F
5.1
5.0
5.9
6.1
7.9
8.0
10.1
10.4
13.8
13.4
14.6
14.9
17.7
18.1
21.0
21.4
26.8
27.3
31.5
32.6
37.9
38.1
Heat of Extraction (HE) - MBtu/h
50°F
70°F
6.5
8.6
6.7
8.9
7.1
9.3
7.4
9.6
7.7
10.1
8.1
10.6
9.7
12.4
10.1
13.0
10.5
13.5
11.4
13.9
12.2
14.8
13.1
15.8
17.4
22.8
18.1
23.5
18.8
24.3
20.0
26.0
20.8
27.1
21.3
27.6
23.8
31.3
24.9
32.6
25.5
33.2
27.2
33.7
28.5
35.5
29.3
36.6
35.1
43.9
36.7
46.3
37.7
47.7
44.1
56.3
45.5
57.5
46.4
59.9
52.4
66.9
53.7
69.8
54.3
70.9
90°F
11.3
11.6
11.8
12.5
12.7
12.9
15.7
16.4
16.5
19.1
19.5
19.8
28.5
29.0
29.4
31.0
32.3
32.8
37.6
39.2
39.8
40.0
42.4
43.9
51.2
54.3
56.2
65.1
69.1
70.0
78.1
82.9
84.8
Heat of Rejection (HR) - MBtu/h
50°F
70°F
90°F
13.0
12.4
12.1
13.0
12.4
12.1
13.1
12.4
11.6
16.9
16.5
15.8
16.9
16.4
15.9
16.9
16.4
16.0
19.3
18.3
17.6
19.4
18.3
17.6
19.5
18.4
17.6
23.0
21.6
20.5
23.3
21.7
20.5
23.6
21.9
20.7
32.6
31.8
29.4
32.6
31.8
29.8
32.6
31.9
30.1
35.1
35.4
33.1
35.0
35.3
33.0
35.3
35.5
33.2
41.5
42.7
40.8
41.4
42.6
40.7
41.8
42.9
40.9
50.2
51.2
48.8
50.4
51.5
49.1
50.7
51.8
49.3
60.6
60.5
57.0
60.8
60.9
57.4
61.1
61.1
57.5
83.1
81.3
76.5
82.9
81.6
76.3
83.2
81.2
76.5
91.1
89.5
83.0
91.2
89.4
82.7
91.9
90.3
83.6
30°F
13.3
12.9
17.3
17.4
18.0
17.1
21.1
21.2
29.8
30.0
32.6
32.9
34.9
35.3
46.9
47.2
56.2
56.5
80.2
80.8
83.4
83.8
110°F
11.9
11.1
16.0
16.1
17.3
16.7
20.1
20.1
28.5
28.7
29.3
29.4
38.0
38.2
45.9
45.9
53.8
53.8
71.9
72.0
76.8
77.6
3/16/12
Dual Capacity
Model
Part Load
026
Full Load
Part Load
038
Full Load
Part Load
049
Full Load
Part Load
064
Full Load
Part Load
072
Full Load
gpm
3.0
5.0
7.0
4.0
6.0
8.0
4.0
6.0
8.0
5.0
7.0
9.0
5.0
8.0
11.0
6.0
9.0
12.0
6.0
10.0
14.0
8.0
12.0
16.0
10.0
13.0
16.0
12.0
15.0
18.0
Heat of Extraction (HE) - MBtu/h
30°F
50°F
70°F
90°F
14.0
18.8
22.8
10.2
14.8
19.8
24.0
10.3
15.1
20.1
24.4
18.6
24.3
29.6
14.0
19.7
25.7
31.1
14.3
20.1
26.1
31.7
17.6
22.8
27.5
12.6
18.3
24.0
29.2
13.6
19.3
24.6
29.2
25.1
31.4
35.9
18.8
26.2
33.1
38.4
19.2
26.9
34.1
39.7
23.2
28.6
32.7
18.4
25.6
31.7
36.5
19.1
26.6
33.4
38.9
33.5
40.8
46.2
26.1
34.8
43.0
49.3
26.7
35.8
44.4
51.1
32.6
41.0
48.0
22.8
32.9
42.7
51.8
23.9
34.1
43.6
51.9
43.9
56.4
69.0
34.5
47.0
58.9
70.2
34.9
47.9
60.7
73.1
36.8
47.0
55.3
25.5
37.1
49.1
59.7
27.1
38.6
50.0
59.8
50.2
65.1
78.2
38.7
53.7
67.8
79.4
39.1
54.7
70.0
82.7
48
30°F
24.7
25.0
33.6
33.9
32.5
33.0
45.2
45.5
42.9
42.4
59.1
59.3
56.5
56.3
73.7
74.1
62.4
61.9
80.9
81.5
Heat of Rejection (HR) - MBtu/h
50°F
70°F
90°F
26.7
26.6
24.3
26.8
26.7
24.2
27.0
26.7
24.3
34.8
34.9
33.4
34.9
35.0
33.3
35.1
35.1
33.4
35.3
34.5
32.4
35.6
34.7
32.5
36.1
35.2
32.9
48.3
48.5
45.8
48.8
49.2
46.7
49.1
49.6
47.0
47.4
48.5
46.2
47.5
48.3
45.6
47.5
48.7
46.5
63.4
63.2
59.0
63.5
63.9
60.1
63.7
64.3
60.3
60.6
59.4
55.5
60.5
59.5
55.8
60.5
59.6
56.1
81.0
82.9
76.5
81.5
83.4
76.7
82.0
83.8
77.2
68.4
67.9
63.2
68.3
67.9
63.5
68.3
68.2
63.8
89.6
88.1
84.6
90.0
91.0
84.9
90.6
91.5
85.3
110°F
22.2
22.2
31.1
31.1
30.3
30.7
43.6
43.8
42.2
43.3
55.0
55.3
52.2
52.5
71.4
71.5
58.8
59.1
77.8
78.1
3/16/12
ENVISION2 COMPACT INSTALLATION MANUAL
Troubleshooting
Should a major problem develop, refer to the following
information for possible causes and corrective steps.
If the unit operation is noisy:
1.
If compressor won’t run:
1.
2.
3.
4.
5.
6.
7.
8.
9.
The fuse may be open or the circuit breaker is tripped.
Check electrical circuits and motor windings for shorts
or grounds. Investigate for possible overloading. Replace
fuse or reset circuit breakers after fault is corrected.
Supply voltage may be too low. Check it with a
volt meter.
Control system may be faulty. Check control for correct
wiring of thermostat or aquastat and check the 24 volt
transformer for proper voltage.
Wires may be loose or broken. Replace or tighten.
The low pressure switch may have tripped due to one or
more of the following:
a) Heating
1) Plugged heat exchanger on source side
2) Water flow source side - (Low)
3) Water too cold source side
4) Low refrigerant
b) Cooling
1) Plugged heat exchanger on load side
2) Water flow load side - (Low)
3) Water too cold load side
4) Low refrigerant
The high pressure switch may have tripped due to one
or more of the following:
a) Heating
1) Plugged heat exchanger on load side
2) Low water flow load side
3) Water too warm load side
b) Cooling
1) Plugged heat exchanger on source side
2) Low water flow on source side
3) Water too warm source side
The compressor overload protection may be open.
The internal winding of the compressor motor may
be grounded to the compressor shell. If so, replace
the compressor.
The compressor winding may be open or shorted.
Disconnect power. Check continuity with ohm meter. If
the winding is open, replace the compressor.
2.
3.
4.
5.
6.
Aurora Control System
NOTE: Refer to the Aurora Base Control Application and
Troubleshooting Guide and the Instruction Guide: Aurora
Interface and Diagnostics (AID) Tool for additional information.
To check the unit control board for proper operation:
1. Disconnect thermostat wires at the control board.
2. Jumper the desired test input (Y1, Y2, W, O or G) to the R
terminal to simulate a thermostat signal.
3. If control functions properly:
• Check for thermostat and field control wiring (use
the diagnostic inputs mode).
4. If control responds improperly:
• Ensure that component being controlled is
functioning (compressor, blower, reversing
valve, etc.).
• Ensure that wiring from control to the component
is functioning (refer to the LED Definition table
below and use the diagnostic outputs mode).
• If steps above check properly, replace unit control.
Refrigerant Systems
To maintain sealed circuit integrity, do not install service
gauges unless unit operation appears abnormal. Compare
the change in temperature on the air side as well as the
water side to the Operating Parameters tables. If the
unit’s performance is not within the ranges listed, and the
airflow and water flow are known to be correct, gauges
should then be installed and superheat and subcooling
numbers calculated. If superheat and subcooling are outside
recommended ranges, an adjustment to the refrigerant
charge may be necessary.
If sufficient cooling or heating is not obtained:
1.
2.
3.
4.
Check compressor for loosened mounting bolts. Make
sure compressor is floating free on its isolator mounts.
Check for tubing contact with the compressor or other
surfaces. Readjust it by bending slightly.
Check screws on all panels.
Check for chattering or humming in the contactor or
relays due to low voltage or a defective holding coil.
Replace the component.
Check for proper installation of vibration absorbing
material under the unit.
Check for abnormally high discharge pressures.
Compressor rotation incorrect
Check control for improper location or setting.
Check for restriction in water flow.
Check refrigerant subcooling and superheat for proper
refrigerant charge and expansion valve operation.
The reversing valve may be defective and creating a
bypass of refrigerant. If the unit will not heat, check the
reversing valve coil.
NOTE: Refrigerant tests must be made with hot water
generator turned “OFF”. Verify that air and water flow rates
are at proper levels before servicing the refrigerant circuit.
49
ENVISION2 COMPACT INSTALLATION MANUAL
Startup and Troubleshooting Form
Company Name: _________________________________
Technician Name: ________________________________
Model No: ______________________________________
Owner’s Name: __________________________________
Installation Address: ______________________________
Company Phone No: ______________________________
Date: __________________________________________
Serial No:_______________________________________
Open or Closed Loop: _____________________________
Installation Date: _________________________________
Check One
❑ Start up/Check-out for new installation
❑ Troubleshooting
Problem:___________________________________
1. FLOW RATE IN GPM (COAXIAL HEAT EXCHANGER)
Water In Pressure:
Water Out Pressure:
Pressure Drop = a - b
Convert Pressure Drop to Flow Rate
(refer to Pressure Drop table)
a.______
b.______
c.______
PSI
PSI
PSI
d.______
GPM
2. TEMPERATURE RISE OR DROP ACROSS COAXIAL HEAT EXCHANGER
Water In Temperature:
Water Out Temperature:
Temperature Difference:
COOLING
e.______ °F
f. ______ °F
g.______ °F
HEATING
e.______
°F
f. ______
°F
g.______
°F
3. TEMPERATURE RISE OR DROP ACROSS AIR COIL
Air In Temperature:
Air Out Temperature:
Temperature Difference:
COOLING
h.______ °F
i. ______ °F
j. ______ °F
HEATING
h.______
°F
i. ______
°F
j. ______
°F
4. HEAT OF REJECTION (HR) / HEAT OF EXTRACTION (HE) CALCULATION
HR or HE = Flow Rate x Temperature Difference x Brine Factor*
d. (above) x g. (above) x 485 for Methanol or Environol, 500 for water*
Heat of Extraction (Heating Mode) =
btu/hr
Heat of Rejection (Cooling Mode) =
btu/hr
Compare results to Capacity Data Tables
Note: Steps 5 through 8 need only be completed if a problem is suspected
5. WATTS
Volts:
Total Amps (Comp. + Fan):
Watts = m. x n. x 0.85
COOLING
VOLTS
m._____
n. _____
AMPS
o. _____
WATTS
HEATING
m.______ VOLTS
n. ______ AMPS
o. ______ WATTS
6. CAPACITY
Cooling Capacity = HR. - (o. x 3.413)
Heating Capacity= HE. + (o. x 3.413)
p. _____
p. _____
btu/hr
btu/hr
7. EFFICIENCY
Cooling EER = p. / o.
Heating COP = p. / (o. x 3.413)
q. _____
q. _____
EER
COP
8. SUPERHEAT (S.H.) / SUBCOOLING (S.C.)
Suction Pressure:
Suction Saturation Temperature:
Suction Line Temperature:
Superheat = t. - s.
COOLING
r. ______ PSI
s. ______ °F
t. ______ °F
u. _____
°F
HEATING
r. ______
PSI
s. ______ °F
t. ______
°F
u. ______ °F
Head Pressure:
High Pressure Saturation Temp.:
Liquid Line Temperature*:
Subcooling = w. - x.
v. ______
w. _____
x. ______
y. ______
v. ______
w. _____
x. ______
y. ______
PSI
°F
°F
°F
* Note: Liquid line is between the coaxial heat exchanger and the expansion valve in the cooling mode;
between the air coil and the expansion valve in the heating mode.
50
PSI
°F
°F
°F
ENVISION2 COMPACT INSTALLATION MANUAL
Startup/7roubleshooting Form
Controls Info:
Dealer:
ABC Version:
Phone #:
AXB Version:
Date:
Problem:
IZ2 Version:
Model #:
T-Stat Version:
Serial #:
Installed Sensors:
COOLING CYCLE ANALYSIS
PSI =
SAT °F
°F
Unit Amp Draw:
°F
AIR
COIL
Loop:
Open
Closed
Line Voltage:
°F
SUCTION
COMPRESSOR
COAX
COAX
EXPANSION
VALVE
LOAD
REVERSING
VALVE
SOURCE
DISCHARGE
Hot Water Generator
$F
°F
LIQUID LINE
°F
°F
°F
°F
PSI
PSI
PSI
PSI
BRINE IN
BRINE IN
BRINE OUT
SAT $F
PSI =
°F
Superheat
°F
Subcooling
BRINE OUT
Water to Water Application
+HDWRI([WUDFWLRQ5HMHFWLRQ JSP[IRUZDWHUDQWLIUHH]H[¨7
1RWH'2127 hook up pressure gauges unless there appears to be a performance problem.
HEA7,1*&<&/( ANALYSIS
PSI =
SAT °F
°F
Unit Amp Draw:
°F
AIR
COIL
Loop:
Open
Closed
Line Voltage:
°F
SUCTION
COMPRESSOR
COAX
COAX
EXPANSION
VALVE
LOAD
REVERSING
VALVE
SOURCE
DISCHARGE
Hot Water Generator
$F
$F
LIQUID LINE
°F
°F
PSI
PSI
BRINE IN
BRINE OUT
°F
PSI
BRINE IN
51
PSI =
°F
PSI
BRINE OUT
°F
°F
SAT $F
Superheat
Subcooling
ENVISION2 COMPACT INSTALLATION MANUAL
Preventive Maintenance
Water Coil Maintenance
Condensate Drain
1.
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.
2.
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.
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.
Blower Motors
Blower motors are equipped with sealed ball bearings and
require no periodic oiling.
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.
Hot Water Generator Coil
See Water Coil Maintenance section above.
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.
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.
CAUTION: Fin edges are sharp.
Replacement Parts
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.
52
ENVISION2 COMPACT INSTALLATION MANUAL
Service Parts
Single Speed Vertical Units
Compressor
Part Description
009
012
015
018
024
Compressor 208-230/60/1
34P590-01
34P591-01
265/60/1
34P590-02 34P591-02 34P592-02 34P593-02 34P624-02 34P582-02 34P583-02
VS ECM Motor &
Blower
High Static VS ECM
Motor & Blower
5-Speed ECM
Motor & Blower
PSC Motor &
Blower
Refrigeration
Components
048
060
070
Not Available
34P624-03 34P582-03 34P583-03 34P578-03 34P579-03 34P580-03 34P646-03
460/60/3
Not Available
34P624-04 34P582-04 34P583-04 34P578-04 34P579-04 34P580-04 34P646-04
575/60/3
Not Available
Run Capacitor 208-230/60/1
Not Available
16P002D17 16P002D18 16P002D19 16P002D19 16P002D19
Sound Jacket
34P578-05 34P579-05 34P580-05 34P646-05
16P002D20
92P504A01
16P002D21
16P002D25 16P002D24
92P504A05
11P521A01
92P504A03
11P781-01
Not Available
VS ECM Motor 208-230/60/1
Not Available
14S551-01
VS ECM Motor 265/60/1
Not Available
14S551-02
VS ECM Motor 230/60/3
Not Available
14S551-01
VS ECM Motor 460/60/3
Not Available
14S552-01
14S553-01
14S552-02
14S551-02
VS ECM Blower Housing
Not Available
VS ECM Harness
Not Available
11P607B02
VS ECM Power Harness
Not Available
11P585B02
Not Available
14S552-01
14S553-01
14S552-02
14S553-02
53P512B01
53P515B01
High Static VS ECM Motor
208-230/60/1
Not Available
14S553-01
High Static VS ECM Motor
265/60/1
Not Available
14S553-02
High Static VS ECM Motor
230/60/3
Not Available
14S553-01
14S553-01
14S553-01
Not Available
High Static VS ECM Motor
460/60/3
Not Available
14S553-02
14S553-02
14S553-02
Not Available
5-Spd ECM Motor
208-230/60/1
14S553-01
14S553-01
Not Available
Not Available
Not Available
14P536-01
14P537-01
5-Spd ECM Motor 265/60/1
Not Available
14P536-02
14P537-02
5-Spd ECM Motor 230/60/3
Not Available
14P536-01
14P537-01
5-Spd ECM Motor 460/60/3
Not Available
14P536-03
14P537-03
5-Spd ECM Blower Housing
Not Available
53P512B01
53P515B01
PSC Motor 208-230/60/1
14P506-02
14P507B01
14P508B01 14P509B01 14P510B01
PSC Motor 265/60/1
14P506-02
14P507B02
14P508B02 14P509B02 14P510B02
14P511B01
14P514B01
Not Available
PSC Motor 230/60/3
Not Available
14P508B01 14P509B01 14P510B01
14P511B01
14P514B01
PSC Motor 460/60/3
Not Available
14P508B03 14P509B03 14P510B03
14P511B02
14P514B02
14P511B03
14P514B03
53P512B01
53P517-02
53P515B01
61P715-41
61P725-41
PSC Motor 575/60/3
Not Available
PSC Blower & Housing
HWG
042
Not Available
Solenoid Harness
53P502B01
Air Coil
61P719-41
61P704-41
61P721-41
Coax
62P586-01
62P572-01
62P585-01
TXV
33P605-08 33P608-13 33P608-02 33P608-02
Reversing Valve
61P705-41
33P506-04
Not Available
62P574-01 62P543-04 62P543-04 62P557-01
33P619-03
33P503-05
33P619-04 33P619-05
33P526-05
36P500B02
62P516-05
62P516-03
13P004A03
15P501B01
Transformer 265/60/1
15P507B01
Transformer 230/60/3
Not Available
Transformer 460/60/3
Not Available
Transformer 575/60/3
Not Available
3 Pole Power Block
Not Available
Not Available
15P501B01
15P505B01
Not available
15P506B01
12P503-06
2 Pole Screw Term. Block
HWL Thermistor
62P574-01
36P500B01
Transformer 208-230/60/1
Freeze Protection Thermistor
61P706-41
33P619-02
33P502-05
Filter Drier
Hot Water Generator
61P711-41
62P566-01 62P588-01
Contactor
Controls
036
230/60/3
Power Harness
Sensors &
Safeties
030
34P592-01 34P593-01 34P624-01 34P582-01 34P583-01 34P578-01 34P579-01 34P580-01 34P646-01
12P500A01
12P505B01
12P505B03
Not Available
12P505B02
High Pressure Switch
35P506B02
Low Pressure Switch
35P506B01
NOTE: Part numbers subject to change.
4/11/14
53
ENVISION2 COMPACT INSTALLATION MANUAL
Service Parts cont.
Single Speed Horizontal Units
Compressor
Part Description
009
012
015
018
024
265/60/1
34P590-02 34P591-02 34P592-02 34P593-02 34P624-02 34P582-02 34P583-02
VS ECM Motor &
Blower
High Static VS ECM
Motor & Blower
5-Speed ECM
Motor & Blower
PSC Motor &
Blower
Refrigeration
Components
048
060
070
Not Available
230/60/3
Not Available
34P624-03 34P582-03 34P583-03 34P578-03 34P579-03 34P580-03 34P646-03
460/60/3
Not Available
34P624-04 34P582-04 34P583-04 34P578-04 34P579-04 34P580-04 34P646-04
575/60/3
Not Available
Run Capacitor 208-230/60/1
Not Available
16P002D17 16P002D18 16P002D19 16P002D19 16P002D19
Sound Jacket
34P578-05 34P579-05 34P580-05 34P646-05
16P002D20
92P504A01
16P002D21
16P002D25 16P002D24
92P504A05
11P521A01
92P504A03
11P781-01
Not Available
VS ECM Motor 208-230/60/1
Not Available
14S551-01
VS ECM Motor 265/60/1
Not Available
14S551-02
VS ECM Motor 230/60/3
Not Available
14S551-01
VS ECM Motor 460/60/3
Not Available
VS ECM Blower Housing
Not Available
VS ECM Harness
Not Available
VS ECM Power Harness
Not Available
14S552-01
14S553-01
14S552-02
14S551-02
Not Available
14S552-01
14S553-01
14S552-02
14S553-02
53P512B01
53P515B01
11P607B02
11P585B02
High Static VS ECM Motor
208-230/60/1
Not Available
14S553-01
High Static VS ECM Motor
265/60/1
Not Available
14S553-02
High Static VS ECM Motor
230/60/3
Not Available
14S553-01
14S553-01
Not Available
High Static VS ECM Motor
460/60/3
Not Available
14S553-02 14S553-02 14S553-02
Not Available
5-Spd ECM Motor
208-230/60/1
14S553-01
14S553-01
Not Available
Not Available
14S553-01
Not Available
14P536-01
14P537-01
5-Spd ECM Motor 265/60/1
Not Available
14P536-02
14P537-02
5-Spd ECM Motor 230/60/3
Not Available
14P536-01
14P537-01
5-Spd ECM Motor 460/60/3
Not Available
14P536-03
14P537-03
5-Spd ECM Blower Housing
Not Available
53P512B01
53P515B01
PSC Motor 208-230/60/1
14P506-02
14P507B01
14P508B01 14P509B01 14P510B01
PSC Motor 265/60/1
14P506-02
14P507B02
14P508B02 14P509B02 14P510B02
14P511B01
14P514B01
Not Available
PSC Motor 230/60/3
Not Available
14P508B01 14P509B01 14P510B01
14P511B01
14P514B01
PSC Motor 460/60/3
Not Available
14P508B03 14P509B03 14P510B03
14P511B02
14P514B02
14P511B03
14P514B03
53P512B01
53P517-02
53P515B01
PSC Motor 575/60/3
Not Available
PSC Blower & Housing
HWG
042
34P592-01 34P593-01 34P624-01 34P582-01 34P583-01 34P578-01 34P579-01 34P580-01 34P646-01
Solenoid Harness
53P502B01
Air Coil
61P719-41
61P704-41
61P720-41
61P729-41
Coax
62P586-01 62P572-01
62P585-01
62P566-01 62P573-01
TXV
33P605-08 33P608-13 33P608-02 33P608-02
Reversing Valve
33P502-05
Filter Drier
36P500B01
61P710-41
62P574-01
33P619-02
61P731-41
62P543-04
33P619-03
33P503-05
62P555-01
33P619-04 33P619-05
33P526-05
36P500B02
Not Available
13P004A03
Transformer 208-230/60/1
15P501B01
Transformer 265/60/1
15P507B01
Transformer 230/60/3
Not Available
Transformer 460/60/3
Not Available
Transformer 575/60/3
Not Available
3 Pole Power Block
Not Available
Not Available
15P501B01
15P505B01
Not available
15P506B01
12P503-06
2 Pole Screw Term. Block
HWL Thermistor
61P709-41
36P500B01
Hot Water Generator
Freeze Protection Thermistor
61P730-41
33P506-04
Contactor
Controls
036
34P590-01 34P591-01
Power Harness
Sensors &
Safeties
030
Compressor 208-230/60/1
12P500A01
12P505B01
12P505B03
Not Available
12P505B02
High Pressure Switch
35P506B02
Low Pressure Switch
35P506B01
NOTE: Part numbers subject to change.
04/11/14
54
ENVISION2 COMPACT INSTALLATION MANUAL
Service Parts cont.
Dual Capacity Vertical Units
Part Description
Compressor
Compressor 208-230/60/1
038
049
064
072
026
038
049
064
072
34P640-01
34P641-01
34P642-01
34P643-01
34P644-01
34P640-01
34P641-01
34P642-01
34P643-01
34P644-01
265/60/1
34P640-02
34P641-02
34P640-02
34P641-02
230/60/3
34P640-03
34P573-03
34P642-03
34P643-03
34P644-03
34P640-03
34P573-03
34P642-03
34P643-03
34P644-03
460/60/3
34P640-04
34P573-04
34P642-04
34P575-04
34P644-04
34P640-04
34P573-04
34P642-04
34P575-04
34P644-04
34P642-05
34P575-05
34P644-05
34P642-05
34P575-05
34P644-05
575/60/3
Run Capacitor 208-230/60/1
Not Available
16P002D19
16P002D20
Sound Jacket
Not Available
16P002D18
16P002D39
92P504A16
Power Harness
Not available
16P002D19
16P002D20
92P504A03
14S551-01
VS ECM Motor 265/60/1
14S551-02
16P002D39
92P504A03
11P782-01
14S552-01
14S553-01
14S552-02
16P002D18
11P781-01
11P782-01
VS ECM Motor 208-230/60/1
Not Available
92P504A16
11P781-01
Solenoid Harness
VS ECM Motor &
Blower
Dual Capacity Horizontal Units
026
Not Available
14S551-01
14S551-02
14S552-01
14S553-01
14S552-02
Not Available
VS ECM Motor 230/60/3
14S551-01
14S552-01
14S553-01
14S551-01
14S552-01
14S553-01
VS ECM Motor 460/60/3
14S551-02
14S552-02
14S553-02
14S551-02
14S552-02
14S553-02
VS ECM Blower Housing
53P512B01
53P515B01
VS ECM Harness
53P512B01
53P515B01
11P607B02
11P585B02
High Static VS ECM
Motor & Blower
11P585B02
High Static VS ECM Motor
208-230/60/1
5-Speed ECM
Motor & Blower
VS ECM Power Harness
11P607B02
5-Spd ECM Motor 208230/60/1
14P536-01
14P537-01
14P536-01
14P537-01
5-Spd ECM Motor 265/60/1
14P536-02
14P537-02
14P536-02
14P537-02
5-Spd ECM Motor 230/60/3
14P536-01
14P537-01
14P536-01
14P537-01
5-Spd ECM Motor 460/60/3
14P536-03
14P537-03
14P536-03
14P537-03
5-Spd ECM Blower Housing
53P512B01
53P515B01
53P512B01
Not Available
14S553-01
High Static VS ECM Motor
265/60/1
Not Available 14S553-02
High Static VS ECM Motor
230/60/3
Not Available
14S553-01
14S553-01
Not Available
Not Available
14S553-01
14S553-01
Not Available
High Static VS ECM Motor
460/60/3
Not Available 14S553-02
14S553-02
Not Available
Not Available 14S553-02
14S553-02
Not Available
HWG
Refrigeration
Components
PSC Motor &
Blower
PSC Motor 208-230/60/1
Not Available
Not Available
14S553-01
14S553-01
Not Available 14S553-02
53P515B01
Not Available
Not Available
Not Available
PSC Motor 230/60/3
Not Available
Not Available
PSC Motor 460/60/3
Not Available
Not Available
PSC Motor 575/60/3
Not Available
Not Available
PSC Blower & Housing
Not Available
Not Available
Air Coil
61P705-41
61P706-41
61P715-41
Coax
62P566-01
62P574-01
62P543-04
62P543-04
TXV
33P619-01
33P619-02
33P619-03
33P619-04
Reversing Valve
33P506-04
Filter Drier
Hot Water Generator
Transformer 265/60/1
33P503-05
61P725-41
61P729-41
61P709-41
62P557-01
62P566-01
62P574-01
33P619-05
33P619-01
33P619-02
33P526-04
36P500B01
36P500B02
62P516-05
Not Available
Not Available
PSC Motor 265/60/1
Transformer 208-230/60/1
Controls
Not Available
Not Available
Contactor
Sensors &
Safeties
14S553-01
62P516-03
13P004A03
33P506-04
61P710-41
61P717-41
62P543-04
33P619-03
33P503-05
62P555-01
33P619-04
33P619-05
33P526-04
36P500B01
36P500B02
Not Available
13P004A03
15P501B01
15P501B01
Not Available
Not Available
Transformer 230/60/3
15P501B01
15P501B01
Transformer 460/60/3
15P505B01
15P505B01
Transformer 575/60/3
Not Available
Not Available
3 Pole Power Block
12P503-06
12P503-06
2 Pole Screw Term. Block
12P500A01
12P500A01
Freeze Protection Thermistor
12P505B03
12P505B03
HWL Thermistor
12P505B02
12P505B02
High Pressure Switch
35P506B02
35P506B02
Low Pressure Switch
35P506B01
35P506B01
NOTE: Part numbers subject to change.
04/11/14
55
ENVISION2 COMPACT INSTALLATION MANUAL
Notes
56
ENVISION2 COMPACT INSTALLATION MANUAL
Revision Guide
Pages:
Date:
By:
Updated with All-Aluminum Air Coils
19 May 2014
DS
33-41
Added Aurora UPC DDC Controls
19 May 2014
DS
18-20
Updated Compressor LRA with IntelliStart
02 Aug 2013
DS
All
Description:
All
Updated Nomenclature to Reflect New Variable Speed ECM Motor
08 Jan 2013
DS
All
Added IntelliStart Availability for 3-Phase Units
08 Jan 2013
DS
27
Replaced Wiring Diagram with Reheat Version
08 Jan 2013
DS
31-34
Updated Aurora Controls Description
08 Jan 2013
DS
51-53
Updated Service Parts Lists
08 Jan 2013
DS
Added Revision Guide
08 Jan 2013
DS
55
57
Manufactured by
WaterFurnace International, Inc.
9000 Conservation Way
Fort Wayne, IN 46809
www.waterfurnace.com
IM1022ANA
05/14
Product:
Type:
Size:
Document:
Envision2 Compact
Water Source/Geothermal Heat Pump
Commercial 0.75-6 Ton
Installation Manual
©2014 WaterFurnace International, Inc., 9000 Conservation Way, Fort Wayne, IN 46809-9794. WaterFurnace has a policy of continual product research and development and
reserves the right to change design and specifications without notice.
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