S P E C I F I C AT I O N C ATA LO G
G E OT H E R M A L H E AT P U M P S
A F F O R DA B L E
R E N E WA B L E
CLEAN
SAH AIR HANDLER
SAH AIR HANDLER SPECIFICATION CATALOG
Table of Contents
Model Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Air Handler Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Dimensional Data - DX Air Handler. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-19
SAH 5 Speed ECM Blower Performance Data Option A. . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-21
Blower Performance Data Option C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-24
SR Encased/Uncased Coil Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Refrigerant Coil Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Coil Physical Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
SR Cased Coil Air Side Pressure Drop (Inches of WC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Dimensional Data - DX Cased Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Engineering Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Revision Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
SAH AIR HANDLER SPECIFICATION CATALOG
Nomenclature
1-3
4-6
7
8-9
10
11
12
13
14
SAH
036
*
00
1
A
R
1
S
15
1
16
*
Model
SAH – Series
S i Air
Ai Handler
H dl
Build
*Factory Use Only
Unit Capacity
Refrigeration (DX)
022 MBTUH
026 MBTUH
030 MBTUH
036 MBTUH
042 MBTUH
048 MBTUH
060 MBTUH
066 MBTUH
Position
1 – Multi-position
Future Options
S – Standard
Voltage
1-208-230/60/1
Air Coil
R – Refrigerant
Vintage
* = Factory Use Only
Controls/ Motor
A – Standard/ 5 Speed ECM
C – Aurora AHB/ Variable Speed ECM1
Electric Heat
00 – None
05 – 5kW (022 – 036 only) No Breakers
10 – 10kW (036 – 066 only) No Breakers
15 – 15kW (042 – 066 only) with Breakers
20 – 20kW (060 - 066 only) with Breakers
TXV
1 – Factory Installed
Note: To field convert the SAH to bottomflow air discharge. The SAHBCK kit must be ordered separately.
Note: Air flow on the 060 and 066 units in the horizontal configurations should be limited to 1900 cfm in
cooling mode, or condensate blow off may occur.
Rev.: 2/27/2017
1. Only available with Aurora controls in the compressor section.
Physical Data
Air Handler Model Number (Refrigerant)
022
026
Air Coil Total Face Area, ft2 [m2]
030
036
3.89 [0.36]
Tube outside diameter - in. [mm]
Evaporator
Coil
042
4.86 [0.45]
3
Fins per inch
12
Suction line connection - in. [mm] sweat
5/8 [15.87]
3/4 [19.05]
Liquid line connection - in. [mm] sweat
1.8 [6.44]
2.1 [7.59]
2.5 [8.79]
9X7
[229 x 178] ]
Blower motor type/speeds
Filter Standard - 1” [51mm] Field Supplied.
1/2 [12.7]
R-410a
Condensate drain connection - (FPT) in. [mm]
Blower motor output - hp [W]
066
6.81 [0.63]
7/8 [22.23]
3/8 [9.52]
Refrigerant
Blower Wheel Size (Dia x W), in. [mm]
060
3/8 [9.52]
Number of rows
Nominal cooling capacity - tons [kW]
048
5.83 [0.54]
1/2 [373]
16 X 20
[406 X 508]
Electrical characteristics (60hz)
3 [10.55]
3.5 [12.30]
4 [14.06] 5 [17.58] 5.5 [19.33]
3/4 [19.05]
10 X 8
11 x 10
[254 x 203]
[279 x 254]
Variable Speed ECM/ 5 Speed ECM
20 X 20
[508 x 508]
208/230 - 1ph
1 [746]
22 X 20
[559 x 508]
Shipping weight - lbs. [kg]
147 [66.7]
168 [76.2]
198 [89.6]
206 [93.4]
Operating weight - lbs. [kg]
139 [63.0]
150 [68.0]
180 [81.6]
188 [85.3]
1/31/2017
4
SAH AIR HANDLER SPECIFICATION CATALOG
Air Handler Features and Benefits
AID Tool Port
Aurora AHB (Optional)*
Factory installed Internal Electric
Heat with circuit breakers on 15kw
Slide out blower assembly
and 20kw models.
Field switchable, four position
design (Horizontal Left/Right,
5 Speed ECM or Variable speed
Vertical & Bottomflow
ECM blower motor options**
Three cabinet sizes
Foil lined, cleanable 1" insulation
2 ton
3 ton
4/5/6 ton
All Aluminum "A" air coil
Factory installed TXV
Composite vertical and horizontal
drain pan with primary and
secondary connections
* Compressor section must have Aurora Controls
**Variable speed ECM requires AHB Controls
UPFLOW
DOWNFLOW
BOTTOMFLOW
HEAT
HEAT
HEAT
HORIZONTAL RIGHT
HEAT
HORIZONTAL LEFT
FIGURE 3: Typical Installation
Note: Air flow on the 060 and 066 units in the horizontal configuration should be limited to 1900
CFM in cooling mode, or condensate blow off may occur.
5
SAH AIR HANDLER SPECIFICATION CATALOG
Air Handler Features and Benefits cont.
Air Coil
Drain Pans
Designed for R-410A refrigerant. Configured as an 'A' coil,
aluminum tubes and enhanced corrugated lanced aluminum
fins to provide high efficiencies at low face velocities.
Two composite drain pans included. One for vertical and
one for horizontal applications. The pans come equipped
with primary and secondary drain connections.
Cabinet
Electrical Disconnect
Factory installed circuit breaker on 15kW/20kW heaters.
Constructed of heavy gauge environmentally-responsible
galvanized steel for maximum corrosion resistance. All
units are painted with a powder coat finish. All interior
surfaces are lined with 1˝ thick, foil lined acoustic type
fiber insulation, applied in a manner that prevents the
introduction of glass fibers into the air stream. Multiple
knockouts in various sizes facilitate power and low voltage
wiring. Multiple access panels for ease of service.
Expansion Device
Factory installed TXV with internal check valve inside
of cabinet.
Refrigerant Connections
Suction and liquid lines have sweat connections extended
outside of cabinet for ease of connection.
Factory Sealed
Achieves 2% or less total airflow leakage rate.
Controls
The SAH Air Handler has two control options.
Installation Ease
Cabinets are shipped in one piece but can be separated for
ease of installation in tight spaces.
Control option 'A' has a terminal strip board that uses the
24V input from the thermostat to control the 5 speed ECM
motor.
Auxiliary/ Emergency Electric Heat
Electric heat packages can be factory or field installed.
For field installed electric heat the Auxiliary Heat
Compatibility table below shows the available heater
packages for the air handler.
Control option 'C' has the AHB board. The AHB is part of
the Aurora controls platform and communicates via modbus
to the ABC. The AHB board controls the air handlers
variable speed motor, auxiliary heat staging, provides
condensate overflow protection, air coil freeze protection
FP2, auxiliary heat and blower energy monitoring, leaving
air temperature, and is Symphony compatible with Aurora
controls in the compressor section..
Configurations
Cabinets are factory configured for upflow and horizontal
right hand air discharge installation but can be easily
configured for horizontal left hand or bottomflow air
discharge.
Auxiliary Heat Compatibility
Model
kW
Stages
19P659-01
5
1
19P659-02
10
2
19P659-03
15
2
19P659-04
20
2
Air Handler Compatibility
022 - 030
036
X
X
X
042 - 048
060
066
X
X
X
X
X
X
X
X
1/10/2017
6
SAH AIR HANDLER SPECIFICATION CATALOG
Dimensional Data - DX Air Handler
Top Flow/Horizontal Unit Configuration
VIEW
TOPTOP
VIEW
3-6 TON
CC
BB
BOTTOM
BOTTOMVIEW
VIEW
R.SIDEVIEW
VIEW22TON
TON
R.SIDE
HH
DD
QQ
X
EE
W
AA
Z
Y
V
FF
U
RIGHT SIDE VIEW
RIGHT
3-6SIDE
TONVIEW
FRONTVIEW
VIEW
FRONT
GG
NN
PP
F
TOP VIEW 22 TON
TON
C
D
E
O
N
M
JJ
L
LL
J K
MM
H
KK
P
B
Q
R
S
T
A
SAH Air Handler - Topflow/Horizontal
Topflow/
Horizontal
Configuration
Refrigerant
Connections
Overall Cabinet
D
A
B
C
Width Depth Height
E
3/4" cond 1/2" cond
Power
Supply
F
H
J
K
Low
Voltage
L
M
024 CABINET DIMENSIONS ONLY
N
O
P
Q
R
S
T
U
V
W
X
Suction Liquid
Y
Z
Power Supply
AA
BB
CC
DD
EE
FF
GG
HH
in.
17.5 21.2
47.0
42.6
45.1
2.5
1.9
4.8
6.4
8.8
10.1
1.1
1.7
2.9
4.5
13.0
14.6
16.2
2.1
13.3
2.1
18.4
1.7
3.1
4.1
1.1
14.0
1.8
14.0
1.8
43.9
cm.
44.5 53.8
119.4
108.2
114.6
6.4
4.8
12.2
16.3
22.4
25.7
2.8
4.3
7.4
11.4
33.0
37.1
41.1
5.3
33.8
5.3
46.7
4.3
7.9
10.4
2.8
35.6
4.6
35.6
4.6
111.5 13.0
036
036
in.
cm.
21.6 21.2
54.9 53.8
52.0
132.1
50.1
127.3
47.6
120.9
2.6
6.6
1.9
4.7
4.8
12.1
6.4
16.3
8.5
21.6
9.7
24.6
1.1
2.8
1.7
4.4
2.9
7.3
4.5
11.4
16.7
42.4
18.3
46.5
20.1
51.1
2.2
5.5
17.2
43.8
2.2
5.6
18.5
46.9
1.6
4.1
4.2
10.5
6.7
16.9
1.2
3.0
14.0
35.5
3.8
9.6
14.0
35.5
1.9
4.8
048-060
042-066
in.
cm.
24.9 21.2
63.2 53.8
58.0
147.3
56.1
142.5
53.2
135.1
2.6
6.6
1.9
4.8
4.8
12.2
6.4
16.3
9.6
24.4
10.8
27.4
1.1
2.8
1.7
4.3
2.9
7.4
4.5
11.4
20.3
51.6
21.9
55.6
23.5
59.7
2.2
5.6
20.6
52.3
2.2
5.6
18.4
46.7
1.7
4.3
4.2
10.7
6.7
17.0
1.5
3.8
18.0
45.7
3.4
8.6
18.0
45.7
1.8
4.6
" Y" IS 1 3/8 KNOCKOUT HIGH VOLTAGE
"Z" IS 1 1/8 KNOCKOUT HIGH VOLTAGE
"AA" IS 7/8 KNOCKOUT LOW VOLTAGE
7
KK
LL
MM
NN
PP QQ
42.6
45.1
2.5
10.5 108.2 114.6
6.4
POWER SUPPLY
024
022-030
Condensate is plastic 3/4" FPT
Discharge flange is field installed and extends 1" (25.4 mm) from cabinet
JJ
Low
Voltage
5.1
3.0
4.4
1.7
7.6 11.2 4.2
4.2
SAH AIR HANDLER SPECIFICATION CATALOG
Dimensional Data - DX Air Handler
Bottom Flow Unit Configuration
LEFT SIDE VIEW
LEFT3-6
SIDE
VIEW
TON
LEFTSIDE
SIDEVIEW
VIEW
LEFT
22TON
TONUNIT
UNIT
FRONT VIEW
VIEW
FRONT
B
R
Q
P
O
N
M
C
K
L
J
DD
I
H
F
G
BB
CC
E
AA
D
A
F
TOP VIEW
TOP
VIEW
BOTTOMVIEW
VIEW
BOTTOM
W
X
Z
T
V
S
Y
U
SAH Air Handler - Bottom flow
Overall Cabinet
Bottomflow
Configuration
D
A
B
C
Width Depth Height
022-030
024
036
042-066
048-060
in.
cm.
in.
cm.
17.5
44.5
21.5
54.6
21.2
53.8
21.2
53.8
47.0
119.4
52.0
132.1
E
F
1/2" cond 3/4" cond
G
Low
Voltage
Power
Supply
Power
Supply
4.4
11.2
4.4
11.2
1.9
4.8
1.9
4.8
2.5
6.4
2.6
6.6
22.8
57.9
22.8
57.9
H
25.7
65.3
25.7
65.3
I
27.3
69.3
27.3
69.3
Refrigerant
POWER SUPPLY 024
Connections
ONLY
J
K
Suction
Liquid
29.5
74.9
29.3
74.5
30.8
78.2
30.6
77.7
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
1.1
2.8
1.1
2.7
1.7
4.3
1.7
4.3
2.8
7.1
2.8
7.2
4.5
11.4
4.5
11.4
13.0
33.0
16.6
42.2
14.5
36.8
18.2
46.3
16.2
41.1
20.1
51.1
1.1
2.8
1.2
3.0
1.8
4.6
3.8
9.7
14.0
35.6
14.0
35.6
18.0
45.7
14.0
35.6
2.2
5.6
2.2
5.6
2.2
5.6
2.2
5.6
13.7
34.8
17.3
43.8
Z
BB
CC
DD
18.5 5.0 3.1
47.0 12.7 7.9
18.5
46.9
1.8
4.6
4.3
11.0
in.
24.9 21.2
58.0
4.4
1.9
2.6
24.0
27.0
28.5
31.3
32.8
1.1
1.7
2.8
4.5
20.2
21.9
23.5
1.2
3.4
18.0
18.0
2.1
2.2
20.5
18.5
cm.
63.2 53.8
147.3
11.2
4.8
6.6
61.0
68.6
72.4
79.5
83.3
2.8
4.3
7.1
11.4
51.3
55.6
59.7
3.0
8.6
45.7
45.7
5.3
5.6
52.1
47.0
Condensate is plastic 3/4" FPT
Discharge flange is field installed and extends 1" (25.4 mm) from cabinet
8
AA
SAH AIR HANDLER SPECIFICATION CATALOG
Electrical Data
Electric Heat Capacity
Model
022
026
030
036
042
048
060
066
KW
BTUH
240v
0
4.8
0
4.8
0
4.8
0
4.8
9.6
0
9.6
14.4
240v
0
16,382
0
16,382
0
16,382
0
16,382
32,765
0
32,765
49,147
14.4
49,147
0
9.6
14.4
0
32,765
49,147
14.4
49,147
0
9.6
14.4
0
32,765
49,147
14.4
49,147
19.2
65,530
19.2
65,530
0
9.6
14.4
0
32,765
49,147
14.4
49,147
19.2
65,530
19.2
65,530
Supply
Circuit
single
single
single
single
single
single
single
L1/L2
L3/L4
single
single
L1/L2
L3/L4
single
single
L1/L2
L3/L4
single
L1/L2
L3/L4
single
single
L1/L2
L3/L4
single
L1/L2
L3/L4
Rated
Voltage
208-230/60/1
Voltage
Min/Max
Fan Motor
FLA
197/253
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
-
Heater
Ampacity
208v
17.3
17.3
17.3
17.3
34.7
34.7
52.0
34.7
17.3
34.7
52.0
34.7
17.3
34.7
52.0
34.7
17.3
69.3
34.7
34.7
34.7
52.0
34.7
17.3
69.3
34.7
34.7
240v
20.0
20.0
20.0
20.0
40.0
40.0
60.0
40.0
20.0
40.0
60.0
40.0
20.0
40.0
60.0
40.0
20.0
80.0
40.0
40.0
40.0
60.0
40.0
20.0
80.0
40.0
40.0
Total Unit
FLA
208v
4.0
21.3
4.0
21.3
4.0
21.3
4.0
21.3
38.7
7.0
41.7
59.0
41.7
17.3
7.0
41.7
59.0
41.7
17.3
7.0
41.7
59.0
41.7
17.3
76.3
41.7
34.7
7.0
41.7
59.0
41.7
17.3
76.3
41.7
34.7
240v
4.0
24.0
4.0
24.0
4.0
24.0
4.0
24.0
44.0
7.0
47.0
67.0
47.0
20.0
7.0
47.0
67.0
47.0
20.0
7.0
47.0
67.0
47.0
20.0
87.0
47.0
40.0
7.0
47.0
67.0
47.0
20.0
87.0
47.0
40.0
Minimum
Circuit
Ampacity
208v
240v
5.0
5.0
26.6
30.0
5.0
5.0
26.6
30.0
5.0
5.0
26.6
30.0
5.0
5.0
26.6
30.0
48.4
55.0
8.8
8.8
52.1
58.8
73.8
83.8
52.1
58.8
21.6
25.0
8.8
8.8
52.1
58.8
73.8
83.8
52.1
58.8
21.6
25.0
8.8
8.8
52.1
58.8
73.8
83.8
52.1
58.8
21.6
25.0
95.4
108.8
52.1
58.8
43.4
50.0
8.8
8.8
52.1
58.8
73.8
83.8
52.1
58.8
21.6
25.0
95.4
108.8
52.1
58.8
43.4
50.0
Maximum
Fuse/HACR
208v
10
30
10
30
10
30
10
30
50
15
60
80
60
25
15
60
80
60
25
15
60
80
60
25
100
60
50
15
60
80
60
25
100
60
50
240v
10
30
10
30
10
30
10
30
60
15
60
90
60
25
15
60
90
60
25
15
60
90
60
25
110
60
50
15
60
90
60
25
110
60
50
1/10/17
Rev.
Rated Voltage of 208/230/60/1
HACR circuit breaker in USA only
Compatibility
Air Handler Sizing Selection
The Air Handlers are designed for R-410A refrigerant and should be matched with split compressor section according to
the table below.
Air Handler
Indoor Split Model (Single)
Indoor Split Model
(Dual Capacity)
Outdoor Split Model
(Dual Capacity)
Rated
Airflow(CFM)
Electric Heat (kW)
SAH022***1*R1S1*
SAH026***1*R1S1*
SAH030***1*R1S1*
SAH036***1*R1S1*
SAH036***1*R1S1*
SAH042***1*R1S1*
SAH048***1*R1S1*
SAH048***1*R1S1*
SAH060***1*R1S1*
SAH060***1*R1S1*
SAH066***1*R1S1*
SAH066***1*R1S1*
022
030
036
042
048
060
070
-
026
038
049
064
072
026
038
049
064
072
800
850
1000
1200
1200
1300
1500
1500
1800
1800
2000
2000
5
5
5
5, 10
5, 10
10, 15
10, 15
10, 15
10, 15, 20
10, 15, 20
10, 15, 20
10, 15, 20
1/31/2017
9
SAH AIR HANDLER SPECIFICATION CATALOG
Wiring Schematics
SAH Air Handler Control Option A Schematic
97P901-01
Air Handler No Electric Heat
208-230/60/1
L1
L2
G
PB
L1
Transformer
L2
Black
24V
Red
Orange
NOTE 1
Brown
Blue
Yellow
Black
C
Blk/Wh
5 Speed
ECM
Blower
Motor
1
2
3
4
TB
Grn/Yel
5
L
Red
Thermostat
R
R
Blue
O
G
L1
Grey
Y1
Tan
Y2
W
G
C
C
Y1
N
Y2
W1
O
G
L
S
X1
X2
Legend
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB-L2 with red transformer wire.
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
2 – Low voltage wiring CLASS 2.
TS
Thermal Limit Switch
G
EHC
EHC
P
1 2 3
Light emitting diode - Green
208-230V Relay coil
Electric Heat Contactor
Polarized connector
Field wire lug
L1
Ground
N.O., N.C.
ER1 to ER4 - Aux heat stage relays
10
PB -
Power block
HE -
Heater element
Breaker
SAH AIR HANDLER SPECIFICATION CATALOG
Wiring Schematics cont.
SAH Air Handler Control Option A Schematic
FL1
HE1
TS1
RELAY
R1
97P901-02
Air Handler 5kW Electric Heat
Blue
Blue
1
White
2
3
208-230/60/1
Yellow
Yellow
Blue
L1
L2
G
L1
Transformer
Black
24V
Red
L2
PB
Orange
NOTE 1
Brown
Blue
Yellow
Black
C
Blk/Wh
5 Speed
ECM
Blower
Motor
1
2
3
4
TB
Grn/Yel
5
L
Red
Thermostat
R
R
Blue
C
White
O
G
L1
Grey
Y1
Tan
Y2
W
G
Blue
C
Y1
N
Y2
W1
O
G
L
S
X1
X2
Legend
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB-L2 with red transformer wire.
2 – Low voltage wiring CLASS 2.
TS
Thermal Limit Switch
G
EHC
EHC
P
1 2 3
Light emitting diode - Green
208-230V Relay coil
Electric Heat Contactor
Polarized connector
Field wire lug
L1
Ground
N.O., N.C.
ER1 to ER4 - Aux heat stage relays
11
PB -
Power block
HE -
Heater element
Breaker
SAH AIR HANDLER SPECIFICATION CATALOG
Wiring Schematics cont.
SAH Air Handler Control Option A Schematic
97P901-03
Air Handler 10kW Electric Heat
Yellow
Yellow
TS1
Yellow
HE2
Yellow
FL2
FL1
HE1
Blue
Blue
Blue
RELAY
Blue
R1
RELAY
R2
1
208-230/60/1
L1
White
Brown
Yellow
Orange
2
3
Blue
Blue
L2
G
Yellow
L1
Transformer
Black
24V
Red
L2
PB
Orange
NOTE 1
Brown
Blue
Yellow
Black
C
Blk/Wh
5 Speed
ECM
Blower
Motor
1
2
3
4
TB
Grn/Yel
5
L
Red
Thermostat
R
R
Blue
C
White
Grey
Y1
Tan
Y2
W
O
G
L1
G
Blue
C
Y1
N
Y2
W1
O
G
L
S
X1
X2
Legend
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB-L2 with red transformer wire.
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
2 – Low voltage wiring CLASS 2.
TS
L1
Thermal Limit Switch
G
EHC
EHC
P
1 2 3
Light emitting diode - Green
208-230V Relay coil
Electric Heat Contactor
Polarized connector
Field wire lug
Ground
N.O., N.C.
ER1 to ER4 - Aux heat stage relays
12
PB -
Power block
HE -
Heater element
Breaker
SAH AIR HANDLER SPECIFICATION CATALOG
Wiring Schematics cont.
SAH Air Handler Control Option A Schematic
97P901-04
Blue
Air Handler 15kW Electric Heat
Red
Black
Yellow
HE3
FL3
HE2
FL2
FL1
HE1
TS1
TS2
Black
Yellow
Blue
RELAY
R1
Brown
Yellow
208-230/60/1
Circuit 2
G
Brown
Blue
1
5
3
H
5
3
H
4
1
H
SEQ2
4
1
H
SEQ1
White
Orange
2
3
Blue
L2
Blue
BRK2
Blue
L1
Yellow
Black
NOTE 2
Blue
L2
BRK1
208-230/60/1
Circuit 1
Red
G
L1
Yellow
Red
Black
L1
Transformer
Black
24V
Red
L2
PB
Orange
NOTE 1
Brown
Blue
Yellow
Black
C
Blk/Wh
1
2
5 Speed
ECM
Blower
Motor
3
Blue
4
Grn/Yel
TB
5
Red
R
Thermostat
R
L
N
G
White
Blue
C
C
Grey
Y1
Y1
Tan
Y2
Y2
W
O
W1
G
L1
O
G
L
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB-L2 with red transformer wire.
2 – Use manufacturer’s part number 19P592-01
(jumper bar assembly) when single source power is
required.
3 – Low voltage wiring CLASS 2.
Legend
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
TS
L1
Thermal Limit Switch
G
EHC
EHC
P
1 2 3
Light emitting diode - Green
208-230V Relay coil
Electric Heat Contactor
Polarized connector
Field wire lug
Ground
N.O., N.C.
ER1 to ER4 - Aux heat stage relays
PB -
Power block
HE -
Heater element
Breaker
S
X1
X2
Dual Power Supply Connections
If two separate circuits are used to supply power to the
auxiliary heat kit, the Installer will need to verify that each leg of
the auxiliary heat circuit breakers are wired from the power
supply correctly in order for the electric heat kit to operate
properly. This can be done by measuring the supply side
voltage of the auxiliary heat circuit breakers. Put a voltmeter on
the L2 side of Circuit Breaker One and on the L2 side of Circuit
Breaker Two. The voltmeter should read approximately 0 volts.
If the meter reads high voltage, the auxiliary heat breakers
need to be rewired so that breakers in the auxiliary heat kit
match the wiring of the Disconnect Panel breakers. Meaning,
L1 and L2 from one breaker in the disconnect panel must
connect to L1 and L2 at one of the auxiliary heat circuit
breakers and L1 and L2 from the other breaker in the
disconnect panel must connect to L1 and L2 of the other
auxiliary heat circuit breaker, making sure that the L1 and L2
from each disconnect breaker matches the L1 and L2 at each
of the auxiliary heat breakers.
13
SAH AIR HANDLER SPECIFICATION CATALOG
Wiring Schematics cont.
SAH Air Handler Control Option A Schematic
97P901-05
Black
Black
Yellow
TS2
HE3
FL3
HE2
FL2
FL4
Black
HE4
FL1
HE1
Yellow
Yellow
Yellow
Blue
RELAY
R2
208-230/60/1
Circuit 2
G
Brown
3
H
4
1
H
SEQ2
TS1
Brown
Blue
Blue
Black
5
Air Handler 20kW Electric Heat
Red
Red
RELAY
R1
Blue
White
5
3
H
4
1
H
SEQ1
1
White
Orange
2
3
Blue
Blue
BRK2
L2
Red
Red
L1
Black
Black
NOTE 2
L2
BRK1
208-230/60/1
Circuit 1
Blue
Blue
L1
Black
Black
G
Red
Black
L1
Transformer
Black
24V
Red
L2
PB
Orange
NOTE 1
Brown
Blue
Yellow
Black
C
Blk/Wh
1
2
5 Speed
ECM
Blower
Motor
3
Blue
4
TB
Grn/Yel
5
Red
R
Thermostat
R
L
N
G
White
Blue
C
C
Grey
Y1
Y1
Tan
Y2
Y2
W
O
W1
G
L1
O
G
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB-L2 with red transformer wire.
L
2 – Use manufacturer’s part number 19P592-01
(jumper bar assembly) when single source power is
required.
X1
3 – Low voltage wiring CLASS 2.
Legend
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
TS
L1
Thermal Limit Switch
G
EHC
EHC
P
1 2 3
Light emitting diode - Green
208-230V Relay coil
Electric Heat Contactor
Polarized connector
Field wire lug
Ground
N.O., N.C.
ER1 to ER4 - Aux heat stage relays
PB -
Power block
HE -
Heater element
S
X2
Dual Power Supply Connections
If two separate circuits are used to supply power to the
auxiliary heat kit, the Installer will need to verify that each leg of
the auxiliary heat circuit breakers are wired from the power
supply correctly in order for the electric heat kit to operate
properly. This can be done by measuring the supply side
voltage of the auxiliary heat circuit breakers. Put a voltmeter on
the L2 side of Circuit Breaker One and on the L2 side of Circuit
Breaker Two. The voltmeter should read approximately 0 volts.
If the meter reads high voltage, the auxiliary heat breakers
need to be rewired so that breakers in the auxiliary heat kit
match the wiring of the Disconnect Panel breakers. Meaning,
L1 and L2 from one breaker in the disconnect panel must
connect to L1 and L2 at one of the auxiliary heat circuit
breakers and L1 and L2 from the other breaker in the
disconnect panel must connect to L1 and L2 of the other
auxiliary heat circuit breaker, making sure that the L1 and L2
from each disconnect breaker matches the L1 and L2 at each
of the auxiliary heat breakers.
Breaker
14
SAH AIR HANDLER SPECIFICATION CATALOG
Wiring Schematics cont.
SAH Air Handler Control Option C Schematic
97P903-01
Unit Power
208-230/60/1
L1
G
Air Handler No Electric Heat
L2
Blower Pe
L1
PB1
L2
Black
MODEL
Grn/Yel
Black/White
022
0
026
0
030
0
036
0
042
0
048
0
060
0
066
0
L2
L2
L1
L1
Transformer
R
C
Note:1
Red
MAX
Yellow
Blue
S
C
DISCH
+5
P14
24V
Gray
T
Gray
P11
DIV
K1
Status
G
7
C
AHB™
P1
6
5
$XURUD$LU+DQGOHU%RDUG
1
5
P12
4
Acc 2 – Dip 5
Orange
Analog Output 0-10VDC
Orange
Black
Not Used
Black
Factory settings
L-H settings MU
"Aux" is factory
"G" may be loca
CFM is controlle
Max ESP includ
Brown
Brown
Communicating Thermostat will connect to the
COMM STAT (C R + -) power block PB3 in the air
handler. A 4-conductor, 20AWG wire will need to
connect from the TO ABC (C R + -) power block
(PB2) in the Air Handler to the ABC P7(See detail
‘A’ on schematic) connection on the ABC board in
the compressor section.
Communicating Thermostat
PB3
P9
C
R
(-)
C
P7
ABC
(+)
R
(-)
C
P6
ZONE
(+)
R
(-)
V+
P8
RS485
(+)
C
R
TX
TO ABC
CR+-
+5
C
ABC
P7
MOTOR
RX
+
Accessory 2 Output
Black
SW1
P4
RS485 NET
-
Black
1
ABC Control
Board in Split Unit
R
2
3
C 2
Detail ‘A’
C
Future Use
Acc 2 – Dip 4
SCT
Brown
Brown
OFF ON
1
Future Use
SUC P
C CO +5
P3 COND
Modbus Add. ID
P10
NOTE:3
C 3
Condensate
Overflow
STEPPER
C S +5
VS DATA
Green/Yellow
Not Used
White
Blower Motor
Current Transducer
P18
Blue
P17
2
HW
3
C 4
4
C PWM C X
VS PUMP
Grn
1
P2
P15
CT2
CT1
4 3 2 1
4
2
3
ECM
Blower
Motor
White
P5
CT2
CT1
4 3 2 1
C +5
ANA
8
C
ACC2
Leaving Air
Temperature LAT
K3
DH
Black
K2
Black
C
Orange
T
C
FP2 Sensor
9
Brown
10
P16
CT
TO COMM STAT
CR+-
Green
White
Red
Green
White
Red
Black
Black
PB2
Legend
Thermostat
Non-Communicating Thermostat will connect to the P1 connection on the ABC
board in the compressor section. A 4-conductor, 20AWG wire will need to connect
from the ABC P7 (See detail ‘A’ on schematic) connection to the TO ABC (C R + -)
power block (PB2) in the Air Handler.
Non-Communicating
Thermostat
LO
LO
R
R
C
C
O
O
G
G
Y1
Y1
Y2
Y2
W
W
DH
DH
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB1-L2 with red transformer wire.
2 – Low voltage wiring CLASS 2.
3 – DIP switch 1 on SW1 must be set in the OFF
position.
TS
L1
Thermal Limit Switch
G
FL
Light emitting diode - Green
Fused Limit
Breaker
P
1 2 3
Polarized connector
Field wire lug
Ground
PB SW1 -
N.O., N.C.
HE -
Power block
DIP package 4 position
Heater element
&XUUHQW7UDQVGXFHU
P1 ABC Board
15
SAH AIR HANDLER SPECIFICATION CATALOG
Wiring Schematics cont.
SAH Air Handler Control Option C Schematic
FL1
HE1
97P903-02
TS1
Air Handler 5kW Electric Heat
Blue
Blue
RELAY
208-230/60/1
R1
1
White
L1
L2
2
3
G
Yellow
Blo
PB4
MO
Blue
02
White
Yellow
L1
02
PB1 L2
Blue
03
Auxiliary Heat
Current Transducer
Black
Blue
Black/White
L2
L2
L1
R
L1
04
C
Note:1
Transformer
Red
03
Grn/Yel
Yellow
04
24V
P11
Gray
K2
Black
Brown
DH
Brown
C
ANA
8
P5
CT2
CT1
4 3 2 1
C +5
7
C
AHB™
P1
6
5
Auxiliary Heat
Current Transducer
$XURUD$LU+DQGOHU%RDUG
1
4
Acc 2 – Dip 5
5
P10
Communicating Thermostat will connect to the
COMM STAT (C R + -) power block PB3 in the air
handler. A 4-conductor, 20AWG wire will need to
connect from the TO ABC (C R + -) power block
(PB2) in the Air Handler to the ABC P7(See detail
‘A’ on schematic) connection on the ABC board in
the compressor section.
Communicating Thermostat
PB3
P9
C
R
(-)
C
P7
ABC
(+)
R
(-)
C
P6
ZONE
(+)
R
(-)
C
R
V+
P8
RS485
(+)
TX
TO ABC
CR+-
+5
C
ABC
P7
MOTOR
RX
+
Brown
SW1
P4
RS485 NET
-
Black
Brown
1
ABC Control
Board in Split Unit
R
2
3
Acc 2 – Dip 4
C 2
Detail ‘A’
C
Future Use
SCT
Brown
OFF ON
1
Future Use
P12
Modbus Add. ID
C CO +5
P3 COND
Brown
STEPPER
C S +5
VS DATA
NOTE:3
C 3
Condensate
Overflow
Black
Blower Motor
Current Transducer
P18
Blue
Green/Yellow
P17
2
HW
3
C 4
4
C PWM C X
VS PUMP
Grn
1
P2
P15
CT2
CT1
4 3 2 1
4
2
3
ECM
Blower
Motor
Wires Not Used
Blue
ACC2
Status
G
9
Gray
SUC P
T
K3
Leaving Air
Temperature LAT
Orange
Facto
L-H s
"Aux
"G" m
CFM
Max
K1
C
Black
10
T
FP2 Sensor
C
CT
DIV
S
06
P16
C
DISCH
+5
P14
06
TO COMM STAT
CR+-
White
Green
White
Green
Red
Red
Black
Black
PB2
Legend
Non-Communicating Thermostat will connect to the P1 connection on the ABC
board in the compressor section. A 4-conductor, 20AWG wire will need to connect
from the ABC P7 (See detail ‘A’ on schematic) connection to the TO ABC (C R + -)
power block (PB2) in the Air Handler.
Thermostat
LO
Non-Communicating
Thermostat
LO
R
R
C
C
O
O
G
G
Y1
Y1
Y2
Y2
W
W
DH
DH
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB1-L2 with red transformer wire.
2 – Low voltage wiring CLASS 2.
3 – DIP switch 1 on SW1 must be set in the OFF
position.
TS
L1
Thermal Limit Switch
G
FL
Fused Limit
Breaker
P
1 2 3
Polarized connector
Field wire lug
Ground
PB SW1 -
N.O., N.C.
P1 ABC Board
Light emitting diode - Green
HE -
Power block
DIP package 4 position
Heater element
&XUUHQW7UDQVGXFHU
16
SAH AIR HANDLER SPECIFICATION CATALOG
Wiring Schematics cont.
SAH Air Handler Control Option C Schematic
97P903-03
Yellow
Air Handler 10kW Electric Heat
Yellow
TS1
Yellow
HE2
Yellow
FL2
FL1
HE1
Blue
Blower P
Blue
Blue
208-230/60/1
Blue
R1
RELAY
RELAY
MODEL
R2
1
White
Brown
L2
G
M
022
3
026
PB4
030
Blue
Blue
036
Auxiliary Heat
Current Transducer
L1
White
PB1 L2
Yellow
Brown
Yellow
Blue
Blue
042
048
Grn/Yel
Yellow
Blue
Black/White
060
066
L2
L2
L1
R
Transformer
L1
Note:1
C
Black
Red
24V
K1
Gray
P11
Status
G
C
ACC2
T
AHB™
Auxiliary Heat
Current Transducer
$XURUD$LU+DQGOHU%RDUG
1
Future Use
2
3
4
Acc 2 – Dip 5
5
P10
Communicating Thermostat will connect to the
COMM STAT (C R + -) power block PB3 in the air
handler. A 4-conductor, 20AWG wire will need to
connect from the TO ABC (C R + -) power block
(PB2) in the Air Handler to the ABC P7(See detail
‘A’ on schematic) connection on the ABC board in
the compressor section.
Communicating Thermostat
PB3
SCT
P9
C
R
(-)
R
C
P7
ABC
(+)
(-)
C
P6
ZONE
(+)
R
(-)
C
R
V+
P8
RS485
(+)
TX
TO ABC
CR+-
+5
C
ABC
P7
MOTOR
RX
+
Brown
SW1
P4
RS485 NET
-
Black
Brown
1
ABC Control
Board in Split Unit
R
Future Use
Acc 2 – Dip 4
C 2
Detail ‘A’
C
OFF ON
1
P12
C CO +5
P3 COND
Brown
Brown
STEPPER
C S +5
VS DATA
NOTE:3
Modbus Add. ID
C 3
Condensate
Overflow
Black
Blower Motor
Current Transducer
P18
Blue
Green/Yellow
P17
2
HW
3
C 4
4
C PWM C X
VS PUMP
Grn
1
P2
2
3
ECM
Blower
Motor
P15
CT2
CT1
4 3 2 1
4
P1
6
5
C
7
P5
CT2
CT1
4 3 2 1
C +5
ANA
8
Orange
SUC P
Leaving Air
Temperature LAT
K3
DH
K2
Gray
DIV
S
C
P16
DISCH
+5
P14
Factory settin
L-H settings M
"Aux" is facto
"G" may be lo
CFM is contro
Max ESP inc
C
Black
10
Brown
Black
C
T
FP2 Sensor
9
CT
TO COMM STAT
CR+-
White
Green
White
Green
Red
Red
Black
Black
PB2
Legend
Non-Communicating Thermostat will connect to the P1 connection on the ABC
board in the compressor section. A 4-conductor, 20AWG wire will need to connect
from the ABC P7 (See detail ‘A’ on schematic) connection to the TO ABC (C R + -)
power block (PB2) in the Air Handler.
LO
Thermostat
L1
2
Non-Communicating
Thermostat
LO
R
R
C
C
O
O
G
G
Y1
Y1
Y2
Y2
W
W
DH
DH
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB1-L2 with red transformer wire.
2 – Low voltage wiring CLASS 2.
3 – DIP switch 1 on SW1 must be set in the OFF
position.
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
TS
L1
Thermal Limit Switch
G
FL
Light emitting diode - Green
Fused Limit
Breaker
P
1 2 3
Polarized connector
Field wire lug
Ground
PB SW1 -
N.O., N.C.
HE -
Power block
DIP package 4 position
Heater element
&XUUHQW7UDQVGXFHU
P1 ABC Board
17
SAH AIR HANDLER SPECIFICATION CATALOG
Wiring Schematics cont.
SAH Air Handler Control Option C Schematic
97P903-04
Blue
Air Handler
15kW Electric Heat
Air H
Red
Black
Black
HE3
FL3
Yellow
HE2
FL2
FL1
HE1
TS1
TS2
RELAY
Yellow
Blue
R1
Blowe
Yellow
G
208-230/60/1
Circuit 2
Brown
Blue
Brown
5
3
H
5
3
H
4
1
H
SEQ2
4
1
H
SEQ1
1
White
2
MODEL
3
Blue
022
PB4
Blue
BRK2
L2
Blue
Red
026
Auxiliary Heat
Current Transducer
L1
Yellow
Black
030
Note:2
BRK1
208-230/60/1
Circuit 1
L2
Blue
036
Dual Power Supply Connections
G
L1
Yellow
Black
White
L1
PB1
Black
Red
L2
Blue
Brown
Grn/Yel
Blue
Yellow
Black/White
Blue
L2
L2
L1
L1
Transformer
R
C
Note:1
Red
K1
Gray
Status
G
AHB™
$XURUD$LU+DQGOHU%RDUG
1
2
3
4
Acc 2 – Dip 5
5
P10
Communicating Thermostat
PB3
SCT
HW
P9
C
R
(-)
R
C
P7
ABC
(+)
(-)
C
P6
ZONE
(+)
R
(-)
C
V+
P8
RS485
(+)
R
TX
TO ABC
CR+-
+5
C
ABC
P7
MOTOR
RX
+
Communicating Thermostat will connect to the
COMM STAT (C R + -) power block PB3 in the air
handler. A 4-conductor, 20AWG wire will need to
connect from the TO ABC (C R + -) power block
(PB2) in the Air Handler to the ABC P7(See detail
‘A’ on schematic) connection on the ABC board in
the compressor section.
SW1
P4
RS485 NET
-
Brown
1
ABC Control
Board in Split Unit
R
Future Use
Acc 2 – Dip 4
C 2
Detail ‘A’
C
OFF ON
1
Future Use
C 3
Brown
Black
Brown
STEPPER
C S +5
VS DATA
NOTE:4
Modbus Add. ID
C CO +5
P3 COND
Brown
Condensate
Overflow
Auxiliary Heat
Current Transducer
Black
Blower Motor
Current Transducer
P12
Blue
Green/Yellow
P18
2
P17
3
C 4
4
C PWM C X
VS PUMP
Grn
1
P2
2
3
ECM
Blower
Motor
P15
CT2
CT1
4 3 2 1
4
P1
6
5
C
7
P5
CT2
CT1
4 3 2 1
C +5
ANA
8
C
ACC2
T
SUC P
Leaving Air
Temperature LAT
K3
DH
K2
Gray
P11
C
Black
10
Orange
Black
C
T
FP2 Sensor
CT
9
Brown
DIV
S
C
P16
DISCH
+5
P14
24V
042
If two separate
circuits are used to supply power to the
auxiliary
heat kit, the Installer will need to verify that each leg of
048
the auxiliary heat circuit breakers are wired from the power
supply 060
correctly in order for the electric heat kit to operate
properly. This can be done by measuring the supply side
voltage066
of the auxiliary heat circuit breakers. Put a voltmeter on
the L2 side of Circuit Breaker One and on the L2 side of Circuit
Breaker Two. The voltmeter should read approximately 0 volts.
Factory s
If theL-H
meter
settin reads high voltage, the auxiliary heat breakers
need"Aux"
to be
is frewired so that breakers in the auxiliary heat kit
match
of the Disconnect Panel breakers. Meaning,
"G"the
maywiring
b
CFML2
is co
L1 and
from one breaker in the disconnect panel must
Max ESP
connect
to L1 and L2 at one of the auxiliary heat circuit
breakers and L1 and L2 from the other breaker in the
disconnect panel must connect to L1 and L2 of the other
auxiliary heat circuit breaker, making sure that the L1 and L2
from each disconnect breaker matches the L1 and L2 at each
of the auxiliary heat breakers.
TO COMM STAT
CR+-
White
Green
White
Green
Red
Red
Black
Black
PB2
Legend
Non-Communicating Thermostat will connect to the P1 connection on the ABC
board in the compressor section. A 4-conductor, 20AWG wire will need to connect
from the ABC P7 (See detail ‘A’ on schematic) connection to the TO ABC (C R + -)
power block (PB2) in the Air Handler.
Thermostat
LO
Non-Communicating
Thermostat
LO
R
R
C
C
O
O
G
G
Y1
Y1
Y2
Y2
W
W
DH
DH
P1 ABC Board
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB1-L2 with red transformer wire.
2 – Use manufacturer’s part number 19P592-01
(jumper bar assembly) when single source power is
required.
3 – Low voltage wiring CLASS 2.
4 – DIP switch 1 on SW1 must be set in the OFF
position.
18
TS
L1
Thermal Limit Switch
G
FL
Light emitting diode - Green
Fused Limit
Breaker
P
1 2 3
Polarized connector
Field wire lug
Ground
PB SW1 -
N.O., N.C.
HE -
Power block
DIP package 4 position
Heater element
&XUUHQW7UDQVGXFHU
SAH AIR HANDLER SPECIFICATION CATALOG
Wiring Schematics cont.
SAH Air Handler Control Option C Schematic
Red
Black
Red
Black
Black
Yellow
TS1
HE3
FL3
HE2
FL2
FL4
FL1
AirAirHandler
20kW Electric Heat
Han
Black
HE4
HE1
Yellow
TS1
Yellow
Yellow
Brown
Blue
RELAY
R2
5
Blue
G
208-230/60/1
Circuit 2
1
R1
RELAY
White
H
3
4
Blue
Blue
Brown
5
H
SEQ2
2
3
Blue
H
SEQ1
1
4
Blower P
1
White
H
3
MODEL
BRK2
L2
Red
Red
022
Auxiliary Heat
Current Transducer
L1
Black
Black
Note:2
L2
BRK1
030
Black
Black
G
L1
026
Blue
Blue
Black
L1
White
PB1
Brown
Grn/Yel
Black
Blue
Red
L2
Blue
Yellow
Black/White
Blue
L2
L2
L1
L1
Transformer
R
C
Note:1
Red
K1
Dual Power Supply Connections
If two separate circuits are used to supply power to the
036 heat kit, the Installer will need to verify that each leg of
auxiliary
the auxiliary heat circuit breakers are wired from the power
042 correctly in order for the electric heat kit to operate
supply
properly. This can be done by measuring the supply side
048
voltage of the auxiliary heat circuit breakers. Put a voltmeter on
the L2
side of Circuit Breaker One and on the L2 side of Circuit
060
Breaker Two. The voltmeter should read approximately 0 volts.
If the
meter reads high voltage, the auxiliary heat breakers
066
need to be rewired so that breakers in the auxiliary heat kit
match the wiring of the Disconnect Panel breakers. Meaning,
Factory settin
L1
and L2 from one breaker in the disconnect panel must
L-H settings M
connect
to L1 and L2 at one of the auxiliary heat circuit
"Aux" is facto
breakers
"G" may beand
lo L1 and L2 from the other breaker in the
CFM is contr panel must connect to L1 and L2 of the other
disconnect
Max
ESP
inc
auxiliary heat circuit breaker, making sure that the L1 and L2
from each disconnect breaker matches the L1 and L2 at each
of the auxiliary heat breakers.
ACC2
Status
G
9
ANA
8
P5
CT2
CT1
4 3 2 1
C +5
7
C
AHB™
P1
6
5
Auxiliary Heat
Current Transducer
$XURUD$LU+DQGOHU%RDUG
P2
1
2
3
4
Acc 2 – Dip 5
5
P10
PB3
SCT
HW
P9
C
R
(-)
R
C
P7
ABC
(+)
(-)
C
P6
ZONE
(+)
R
(-)
C
V+
P8
RS485
(+)
R
TO ABC
CR+-
TX
ABC
P7
+5
C
P4
+
Communicating Thermostat
SW1
MOTOR
RX
RS485 NET
-
Communicating Thermostat will connect to the
COMM STAT (C R + -) power block PB3 in the air
handler. A 4-conductor, 20AWG wire will need to
connect from the TO ABC (C R + -) power block
(PB2) in the Air Handler to the ABC P7(See detail
‘A’ on schematic) connection on the ABC board in
the compressor section.
1
ABC Control
Board in Split Unit
R
Future Use
Acc 2 – Dip 4
C 2
Detail ‘A’
C
OFF ON
1
Future Use
C 3
Brown
Brown
STEPPER
C S +5
VS DATA
NOTE:4
Modbus Add. ID
C CO +5
P3 COND
Brown
Condensate
Overflow
Black
Brown
Blower Motor
Current Transducer
P12
Blue
Green/Yellow
P18
2
P17
3
C PWM C X
VS PUMP
4
C 4
1
Grn
Black
P15
CT2
CT1
4 3 2 1
4
2
3
ECM
Blower
Motor
SUC P
Gray
C
Orange
K3
DH
Gray
P11
Black
K2
T
C
Leaving Air
Temperature LAT
Black
10
T
C
FP2 Sensor
DIV
S
C
P16
CT
DISCH
+5
P14
24V
Brown
M
PB4
Blue
208-230/60/1
Circuit 1
97P903-05
TO COMM STAT
CR+-
White
Green
White
Green
Red
Red
Black
Black
PB2
Legend
Thermostat
Non-Communicating Thermostat will connect to the P1 connection on the ABC
board in the compressor section. A 4-conductor, 20AWG wire will need to connect
from the ABC P7 (See detail ‘A’ on schematic) connection to the TO ABC (C R + -)
power block (PB2) in the Air Handler.
Non-Communicating
Thermostat
LO
LO
R
R
C
C
O
O
G
G
Y1
Y1
Y2
Y2
W
W
DH
DH
P1 ABC Board
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB1-L2 with red transformer wire.
TS
2 – Use manufacturer’s part number 19P592-01
(jumper bar assembly) when single source power is
required.
3 – Low voltage wiring CLASS 2.
4 – DIP switch 1 on SW1 must be set in the OFF
position.
19
L1
Thermal Limit Switch
G
FL
Light emitting diode - Green
Fused Limit
Breaker
P
1 2 3
Polarized connector
Field wire lug
Ground
PB SW1 -
N.O., N.C.
HE -
Power block
DIP package 4 position
Heater element
&XUUHQW7UDQVGXFHU
SAH AIR HANDLER SPECIFICATION CATALOG
SAH 5 Speed ECM Blower Performance Data Option A
Blower Performance 5 Speed ECM Control Option A
Model
022
026
030
036
042
048
060
066
Motor
Speed
Motor
Tap
T’stat
Connection
High
Med High
5
4
W
Y2*
Med
Med Low
Low
3
2
1
Y1
G
High
Med High
5
4
W
Y2*
Med
Med Low
Low
3
2
1
Y1
G
High
Med High
5
4
W
Y2*
Med
Med Low
Low
3
2
1
Y1
G
High
Med High
Med
5
4
3
W
Y2*
Y1
Med Low
Low
2
1
G
High
Med High
5
4
W
Y2*
Med
Med Low
Low
3
2
1
Y1
G
High
Med High
5
4
W
Y2*
Med
Med Low
Low
3
2
1
Y1
G
High
Med High
5
4
W
Y2*
Med
Med Low
Low
3
2
1
Y1
G
High
Med High
5
4
3
W
Y2*
Y1
Med
Blower
Size
9x7
9x7
9x7
10 x 8
11 x 10
11 x 10
11 x 10
11 x 10
Motor
HP
Airflow (cfm) at External Static Pressure (in. wg)
0
0.05
0.10
1/2
1130
1040
950
860
740
1115
1025
935
845
720
1/2
1130
1040
950
860
740
0.20
0.25
0.30
0.40
0.45
0.50
0.60
0.70
0.80
0.90
1.00
1100
1010
920
830
700
1090 1080
1000 990
905 890
815
800
680 660
1065
975
875
785
645
1050 1040 1030
960 945 930
860 845 830
770
755 740
630 605 580
1015
915
815
720
540
1000
900
800
700
500
980
880
760
660
460
950
850
730
590
-
-
-
-
1115
1025
935
845
720
1100
1010
920
830
700
1090 1080
1000 990
905 890
815
800
680 660
1065
975
875
785
645
1050 1040 1030
960 945 930
860 845 830
770
755 740
630 605 580
1015
915
815
720
540
1000
900
800
700
500
980
880
760
660
460
950
850
730
590
-
-
-
-
1/2
1220
1130
1040
950
790
1205
1115
1030
935
770
1190
1100
1020
920
750
1180 1170
1090 1080
1005 990
905 890
735
720
1160
1070
975
875
700
1150 1140 1130
1060 1045 1030
960 945 930
860 845 830
680 660 640
1115
1015
915
815
620
1100
1000
900
800
600
1050
980
890
770
530
930
950
850
730
500
-
-
-
1/2
1450
1350
1170
1000
990
1435
1335
1150
980
915
1420
1320
1130
960
840
1405
1305
1115
940
800
1390
1290
1100
920
760
1375
1275
1080
905
730
1360 1345 1330
1260 1245 1230
1060 1045 1030
890 870 850
700 680 660
1315
1215
1015
825
630
1300
1200
1000
800
600
1270
1170
960
760
520
1250
1140
920
710
470
1210
1100
880
650
430
-
-
1
1960
1790
1700
1630
1490
1945
1775
1685
1560
1445
1930
1760
1670
1600
1400
1915 1900
1745 1730
1650 1630
1520 1560
1375 1350
1880
1710
1615
1535
1325
1860 1845 1830
1690 1670 1650
1600 1575 1550
1510 1490 1470
1300 1270 1240
1810
1535
1525
1445
1210
1790
1420
1500
1420
1180
1750
1560
1450
1370
1120
1700
1500
1400
1300
1000
1660
1450
1350
1250
930
-
-
1945
1775
1685
1560
1445
1930
1760
1670
1600
1400
1915 1900
1745 1730
1650 1630
1520 1560
1375 1350
1880
1710
1615
1535
1325
1860 1845 1830
1690 1670 1650
1600 1575 1550
1510 1490 1470
1300 1270 1240
1810
1535
1525
1445
1210
1790
1420
1500
1420
1180
1750
1560
1450
1370
1120
1700
1500
1400
1300
1000
1660
1450
1350
1250
930
1600
1450
1350
1250
930
-
1
1960
1790
1700
1630
1490
1
2210 2230 2190 2194 2170
2030 2073 2000 2035 1970
1850 1931 1820 1889 1790
1770 1796 1740 1761 1710
1570 1661 1540 1616 1510
2155
1995
1850
1718
1573
2130
1940
1760
1680
1460
2120 2100 2087 2060 2020
1958 1910 1922 1870 1840
1812 1730 1774 1680 1640
1682 1630 1651 1590 1560
1533 1420 1495 1370 1320
2000
1800
1600
1500
1250
1960
1760
1560
1450
1200
1920 1890
1720 1680
1510 1450
1400 1340
1100 1020
1
2390 2454
2210 2248
2030 2115
1860 1985
1780 1784
2340 2371 2320 2328 2290 2289 2270 2230 2200
2160 2166 2140 2129 2100 2094 2070 2040 2000
1980 2030 1950 1996 1900 1965 1880 1840 1800
1800 1898 1770 1862 1730 1828 1690 1640 1600
1720 1696 1680 1656 1640 1625 1600 1550 1500
2170
1960
1760
1570
1460
2140 2100
1940 1890
1720 1680
1510 1460
1400 1380
1/10/17
2370
2180
2010
1830
1750
0.15
2414
2205
2072
1939
1742
0.35
Med Low
2
Low
1
G
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.
*Single speed compressor section units will need to remove the TAN wire on the 5 speed motor and replace it with the RED wire. Tape end and secure the
TAN wire.
The SAH Air Handler blower is factory
ctory wired for dual speed compressor section operation.
20
-
SAH AIR HANDLER SPECIFICATION CATALOG
SAH 5 Speed ECM Blower Performance Data Option A cont.
5-Speed ECM Constant Torque Motors
Setting Blower Speed - 5-Speed ECM
The 5-Speed ECM is a 'Constant Torque' ECM motor and
delivers air flow similar to a PSC but operates as efficiently
as an ECM Motor. Because it's an ECM Motor, the 5-Speed
ECM can ramp slowly up to down like the 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.
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 Splits
High Voltage
Connections
3/16 in.
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, airflow decreases resulting in less torque on the
rotor. The motor responds only to changes in torque and
adjusts its speed accordingly.
C
C - Black
N
N - Brown
G - Blue
1
Y1 - Red
2
3
4
5
AUX - Gray
Low Voltage
Connections 1/4 in.
5-Speed ECM Motor Connections Dual Capacity Splits
5-Speed ECM Benefits:
•
G
L - Orange
G - Green
The 5-Speed ECM motor is powered by line voltage but the
motor speed is energized by 24 VAC.
•
•
•
•
L
High Voltage
Connections
3/16 in.
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.
C
C - Black
L
G
N
N - Brown
L - Orange
G - Green
G - Blue
Y1 - Red
21
1
2
3
4
Low Voltage
Connections 1/4 in.
5
AUX - Gray
Y2 - Tan
SAH AIR HANDLER SPECIFICATION CATALOG
Blower Performance Data Option C
Blower Performance Variable Speed ECM Control Option C
MODEL
MAX ESP
022
0.50
400
026
0.50
400
1
2
030
0.50
036
0.50
550
650
042
0.75
650
750
400
3
500
G
500
G
500
G
700
G
800
4
600
L
600
600
800
900
G
900
G
5
700
700
L
700
L
850
1000
AIR FLOW SPEED SETTINGS
6
7
8
800
1000
900
H
Aux
900
1000
800
H
Aux
900
1000
800
H
Aux
950
900
1050
L
1200
1150
1300
L
1300
1150
1200
L
1650
1800
1700
L
H
1650
1800
1700
L
9
10
1100
1200
1100
1200
1100
1100
H
1400
H
11
1200
1200
1300
Aux
1500
1600
1500
1000
1400
750
800
1600
H
2000
1100
060
0.75
1350
1500
950
1200
2100
2200
Aux
G
2000
2100
1100
2200
1350
1500
066
0.75
950
1200
H
Aux
G
Factory settings are at recommended G-L-H-Aux speed settings
L-H settings MUST be located within boldface CFM range
“Aux” is factory setting for auxiliary/emergency heat and must be equal to or above the “H” setting as well as at least the minimum required for the auxiliary
heat package
“G” may be located anywhere within the airflow table
CFM is controlled within 5% up to the maximum ESP
Max ESP includes allowance for wet coil.
048
0.75
650
22
12
1700
Aux
1700
Aux
1/10/17
SAH AIR HANDLER SPECIFICATION CATALOG
Blower Performance Data Option C cont.
IntelliZone2 Zoning Compatibility
(Optional IntelliZone2 Communicating Zoning)
SAH Control Option C AHB Board
The SAH Air Handler with the 'Advanced' control option
expands on the capability of the Aurora 'Advanced' Control
(ABC and AXB) in the compressor section, by adding the
AHB board in the air handler.
A dedicated input to connect and communicate with the
IntelliZone2 (IZ2) zoning system is provided on P7 on the
AHB and AXB. This is a dedicated communication port using
a proprietary ModBus protocol. An AXB in the compressor
section or an AHB in the air handler is required. Consult the
Intellizone2 literature for more information.
NOTE: The Energy Monitoring and Leaving Air
Temperature features at the AHB board are dependent on
the AXB board in the compressor section.
Communicating Digital Thermostats
The Aurora controls system also features either monochromatic or color touch screen graphic display thermostats
for user interface. These displays not only feature easy to use
graphical interface but display alerts and faults in plain English.
Many of the features discussed here may not be applicable
without these thermostats.
It is highly recommended that the installing/servicing
contractor use an Aurora Interface and Diagnosic Tool
(AID) when installing and servicing an Aurora 'Advanced'
control system.
The AHB board includes the following features:
Energy Monitoring (AXB Board Required in
Compressor Section)
(Standard Sensor Kit on ‘Advanced’ models)
AHB DIP Switch
DIP 1 - ID: This is the AHB ModBus ID and should always
read Off.
DIP 2 & 3 - Future Use
DIP 4 & 5 - Accessory Relay2: A second, DIP configurable,
accessory relay 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
The Energy Monitoring Kit includes two current transducers
(blower and electric heat) so that the complete power usage
of the air handler can be measured. The AID Tool provides
configuration detail for the type of blower motor, power
adjustment and a line voltage calibration procedure to
improve the accuracy. The information can be displayed on
the AID Tool or selected communicating thermostats. The
TPCM32U03A(*)/04A(*) will display instantaneous energy
use while the color touchscreen TPCC32U01(*) will in addition
display a 13 month history in graph form. Refer to Compressor
Section Start Up Energy Monitoring for configuration details.
Description
Cycles with Fan or ECM (or G)
Cycles with CC1 first stage of compressor
or compressor spd 1-6
Cycles with CC2 second stage of
compressor or compressor spd 7-12
Cycles with DH input from ABC board
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.
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.
AWL – Aurora Weblink
(optional accessory)
AWL is an add-on WiFi router that connects to the ABC
and offers many features:
•
Remote access to thermostat settings, schedules, etc.
with your smartphone, tablet or laptop
•
Receive Lockout/Fault info via text or e-mail
•
View heat pump energy usage from the Internet for the
day, week, month, year or real-time
•
Internet AID Tool capability allows remote
troubleshooting for the technician
•
Remote AID Tool capability at the heat pump with
smartphone, tablet or laptop for the technician
•
Allows data acquisition of the heat pump through
the Internet, see graphs of performance and chart
historical data for the technician
•
Stores historical data on SD card
Leaving Air Temperature (AXB Board Required in
Compressor Section)
A leaving air temperature (LAT) thermistor is located near the
blower inlet and can be read via the AID tool or AWL.
Electric Heat Staging
The AHB board provides two stages of auxiliary heat operation.
During normal operation, the first stage of electric heat is
energized 10 seconds after the W command is received. If the
demand continues the second stage is of electric heat will be
energized after 5 minutes. In an Emergency heat operation the
time delay between stage one and stage two will be 2 minutes.
23
SAH AIR HANDLER SPECIFICATION CATALOG
Blower Performance Data Option C cont.
Setting Blower Speed - Variable Speed
ECM
ECM Speed Setup - These screens allow the technician to
select the “G”, low, high, and auxiliary heat blower speed for
the ECM blower motor. Change the highlighted item using
the ▲ and ▼ buttons. Press the ◙ button to select the speed.
The ABC board’s Yellow Config LED will flash the current
ECM blower speed selections for “G”, low, 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 Aux will not be flashed but can be
viewed in the AID Tool. The ECM blower motor speeds can
be field adjusted with or without using an AID Tool.
ECM Speed Info
ECM Setup without an AID Tool
Option ◀▶
The blower speeds for “G”, Low (Y1), High (Y2), and 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 ECM Configuration Mode
portion of the Aurora ‘Base’ Control System section. The
Aux cannot be set manually without an AID Tool.
3
6
9
10
Selecting YES will enter ECM
speed setup, while selecting NO
will return to the previous screen.
Yes
Option ◀▶
Enter ◙
Option ◀▶
ECM Speed Info
1
2G
3
Lo
4
5
6
Hi
7
8
9
▶10
11
12
Enter ◙
Option ◀▶
Cooling Airflow Setup
Cooling Airflow Setup
--- ECM Only --The airflow will be
adjusted by the chosen
amount in cooling mode.
--- ECM Only --The airflow will be
adjusted by the chosen
amount in cooling mode.
Adjustment:
-15%
Adjustment:
-15%
Want To Change?
Yes
Option ◀▶
Want To Change?
Option ◀▶
Enter ◙
ECM Speed Info
1
2G
3
Lo
4
5
◀ Hi
▶ 6
7
8
9
10
11
12
◀ Aux
Enter ◙
Cooling Airflow Setup - These screens allow the technician
to select -15%, -10%, -5%, None or +5%. Change the
adjustment percentage using the ▲ and ▼ buttons. Press
the ◙ button to save the change.
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 ECM settings. It allows the technician
to enter the setup screens to change the ECM settings.
Change the highlighted item using the ◀ and ▶ buttons and
then press the ◙ button to select the item.
Blower Only Speed
Lo Compressor
Hi Compressor
Aux Heat
1
2G
▶ 3 ◀ Lo
4
5
6
7
8
9
10
11
12
After the auxiliary heat speed setting is selected the AID
Tool will automatically transfer back to the ECM Setup screen.
ECM Setup with an AID Tool
ECM Speed Info
ECM Speed Info
1
▶ 2 ◀G
3
4
5
6
7
8
9
10
11
12
No
Enter ◙
24
No
Enter ◙
Change ▼▲
Enter ◙
SAH AIR HANDLER SPECIFICATION CATALOG
SR Encased/Uncased Nomenclature
Refrigerant Coil Compatibility
Encased/Uncased Coil
Indoor Split
Model (Single)
Indoor Split Model
(Dual Capacity)
Outdoor Split Model
(Dual Capacity)
Recommended Airflow
(CFM)
SR**026C*
022
-
SR**026C*
-
026
026
850
SR**026C*
030
-
-
1000
SR**036C*
036
-
-
1200
SR**036C*
-
038
038
1200
SR**048C*
042
-
-
1300
SR**048C*
048
-
-
1500
SR**048C*
-
049
049
1500
SR**060C*
060
-
-
1800
SR**060C*
-
064
064
1800
SR**060C*
070
-
-
2000
SR**060C*
-
072
072
2000
800
3/7/2017
SR Coil Physical Characteristics
Air Handler Model Number (Refrigerant)
Air Coil Total Face Area, ft2 [m2]
026
036
048
060
3.89 [0.36]
4.86 [0.45]
5.83 [0.54]
6.81 [0.63]
Tube outside diameter - in. [mm]
Evaporator
Coil
3/8 [9.52]
Number of rows
3
Fins per inch
12
Suction line connection - in. [mm] sweat
5/8 [15.87]
Liquid line connection - in. [mm] sweat
3/4 [19.05]
Refrigerant
Nominal cooling capacity - tons [kW]
1/2 [12.7]
R-410a
1.8 [6.44] 2.1 [7.59] 2.5 [8.79]
Condensate drain connection - (FPT) in. [mm]
Filter Standard - 1” [51mm] Field Supplied.
7/8 [22.23]
3/8 [9.52]
3 [10.55]
3.5 [12.30] 4 [14.06] 5 [17.58] 5.5 [19.33]
3/4 [19.05]
16 X 20
20 X 20
22 X 20
[406 X 508]
[508 x 508]
[559 x 508]
3/7/17
25
SAH AIR HANDLER SPECIFICATION CATALOG
Dimensional Data
Refrigerant Coil
G
FRONT
F
B
C
2
1
E
D
3
H
L
BOTTOM
I
LEFT SIDE
J
K
A
6581&$6('$,5&2,/
Connections
Overall Dimensions
Uncased
Models
A
Width
B
Depth
C
Height*
1
Suction
Sweat
Refrigerant Connections
Condensate Connections
2
Liquid
Sweat
3
Condensate
NPT
D
E
F
G
H
I
J
K
L
SRAA026U*
in.
cm.
16.1
40.8
20.7
52.6
17.5
44.5
5/8
1.6
3/8
1.0
3/4
1.9
7.7
19.4
8.9
22.5
0.3
0.8
0.8
1.9
2.0
5.1
3.6
9.1
12.3
31.2
13.9
35.3
0.7
1.8
SRAA036U*
in.
cm.
19.7
50.0
20.7
52.6
21.1
53.6
3/4
1.9
3/8
1.0
3/4
1.9
7.2
18.2
8.6
21.8
0.3
0.8
1.1
2.7
2.1
5.4
3.8
9.5
15.9
40.4
17.5
44.5
0.7
1.8
SRAA048U*
in.
cm.
23.2
58.9
20.7
52.6
24.9
3/4
3/8
3/4
8.4
9.6
0.2
0.9
2.1
3.8
19.5
21.0
0.7
63.2
1.9
1.0
1.9
21.3
24.4
0.4
2.3
5.3
9.7
49.5
53.3
1.8
SRAA060U*
in.
cm.
23.2
58.9
20.7
52.6
29.4
74.6
7/8
2.2
1/2
1.3
3/4
1.9
8.5
21.6
9.8
24.9
0.3
0.8
0.9
2.2
2.1
5.3
3.8
9.7
19.5
49.5
21.0
53.3
0.7
1.8
*NOTE: All refrigerant coils feature factory insta lled TXV.
SR Cased Coil Air Side Pressure Drop (inches of WC)
Model
SRAA026C1
SRAA036C1
SRAA048C1
SRAA060C1
Airflow (CFM)
Dry Coil
600
0.08
800
0.14
1000
0.20
1000
0.11
1200
0.14
1400
0.18
1200
0.12
1400
0.15
1600
0.19
1800
0.25
1600
0.21
1800
0.27
2000
0.33
2200
0.38
3/7/2017
26
SAH AIR HANDLER SPECIFICATION CATALOG
Dimensional Data - DX Cased Coils
"A"
"U"
Q
T
"B"
R
"V"
S
"W"
TOP VIEW
BOTTOM VIEW
"G"
"C"
"F"
"E"
"D"
"I"
"J"
"H"
"K"
"L"
"M"
"N"
SAH CASED AIR COIL
"O"
S5 CASED AIR COIL
Topflow &
Horizontal
Configuration
026
036
048-060
Overall Cabinet
A
B
C
Refrigerant Connections
D
Width Depth Height Suction
E
F
Condensate Connections
G
H
I
J
K
L
M
Duct Connections
N
O
Q
R
S
T
U
V
W
Liquid Suction Liquid
in.
17.8 21.5
26.3
8.8
10.1
1.0
1.6
1.9
4.8
6.4
2.7
4.4
13.0
14.6
16.2 13.9
2.0
2.0
17.6
2.0
2.0
2.0
cm.
45.2 54.6
66.8
22.4
25.7
2.5
4.1
4.8
12.2
16.3
6.9
11.2
33.0
37.1
41.1 35.3
5.1
5.1
44.7
5.1
5.1
5.1
2.0
in.
21.5 21.5
31.1
8.5
9.8
1.1
1.7
1.7
4.6
6.3
3.0
4.6
16.8
18.4
20.2 17.6
2.0
2.0
17.6
2.0
2.0
cm.
54.6 54.6
79.0
21.6
24.8
2.8
4.3
4.3
11.7
16.0
7.6
11.7
42.5
46.7
51.3 44.8
5.1
5.1
44.7
5.1
5.1
5.1
in.
24.9 21.4
35.3
9.5
10.8
1.1
1.7
1.9
4.8
6.4
3.0
4.7
20.3
22.0
23.5 21.0
2.0
2.0
17.6
2.0
2.0
2.0
cm.
63.2 54.4
89.6
24.1
27.4
2.8
4.3
4.8
12.1
16.3
7.6
11.9
51.6
55.9
59.7 53.3
5.1
5.1
44.7
5.1
5.1
5.1
NOTE: Cased coils are shipped with a 1" Flange Kit.
27
SAH AIR HANDLER SPECIFICATION CATALOG
Engineering Guide Specifications
General
Electrical
The air handler shall provide vertical upflow, downflow, or
horizontal configurations in one package. Units shall be
listed by a nationally recognized safety-testing laboratory
or agency, such as Underwriter’s Laboratory (UL) or
Environmental Testing Laboratories (Intertek-ETL). The
air handler units shall be designed and AHRI performance
listed to operate with the geothermal split condensing units
as provided by the manufacturer. Each unit shall be pallet
mounted and shipped using dense cardboard corners/top
and stretch wrap for easy shipping damage inspection.
A control section shall be located within the air handler
compartment and shall contain either a 75VA or 100VA
transformer, 24 volt activated. Transformers shall be
protected by internal circuit breakers. Units shall be
name-plated for use with time delay fuses or HACR circuit
breakers. Unit controls shall be either communicating
or 24 volt type. An Aurora AHB (control option C), a
microprocessor-based controller interfaces with the ABC
located in the compressor section to control unit operation,
shall be optional. The AHB control shall provide operational
sequencing, blower speed control, air coil freeze detection,
condensate overflow sensing, auxiliary heat staging, field
selectable options, and accessory output.
Casing and Cabinet
The cabinet shall be fabricated from heavy-gauge
galvanized steel and polyester powder coat paint to
withstand 1000 hours of salt spray testing. The interior
shall be insulated with 1 in. thick, multi-density, cleanable
aluminum foil coated glass fiber with edges sealed or
tucked under flanges to prevent the introduction of glass
fibers into the discharge air. One large blower compartment
access panel shall be provided and shall be removable
with supply and return ductwork in place. The internal
components layout shall provide for major service with
the unit in-place for restricted access installations. The
blower assembly access shall be slide-out serviceable via a
‘works-in-a-drawer’ design. The cabinet shall be convertible
to horizontal or downflow applications by reconfiguring
the cabinet using only a nut driver. The unit shall be ‘zero
clearance’ approved on any of its external surfaces.
An integral circuit breaker shall be provided on all units
employing 15 kW or 20 kW electric heat. The control
shall maintain the blower operation 30 seconds after the
compressor or electric heat inputs have terminated.
A terminal block with screw terminals will be provided
for field control wiring. All units shall have knockouts for
entrance of low and line voltage wiring. The blower motor
and control box shall be harness plug wired for easy
removal.
An optional Aurora Interface Diagnostic (AID) Tool shall
communicate with the Aurora control allowing quick and
easy access to setup, monitoring, and troubleshooting of
any Aurora control. The device shall include the features of
fault description and history, manual operation capability,
sensor readings, timings, and other diagnostic tools.
Refrigeration Circuit
All units shall provide a fin tube air-to-refrigerant heat
exchanger of the “A” coil design. The finned tube coil shall
be sized for low-face velocity and constructed of lanced
aluminum fins bonded to aluminum tubes in a staggered
pattern. The coil shall include a composite drain pan.
Piping
Refrigerant connections shall be made using sweat
copper joints. The condensate connections shall be a 3/4 in.
NPT.
The thermal expansion valve shall be factory installed and
provide proper superheat over the entire liquid temperature
range with minimal “hunting.” The valve shall operate in the
cooling mode through the use of an internal check valve.
Blower Motor and Assembly
The blower shall be an oversized direct drive centrifugal
type with a dynamically balanced wheel. The housing
and wheel shall be designed for quiet low outlet velocity
operation and of galvanized or galvalume steel construction.
Tight blower housing geometry shall not be permitted. The
blower housing shall be removable from the unit without
disconnecting the supply air ductwork for servicing of the
blower motor through a ‘works-in-a-drawer’ design. The
high efficiency blower motor shall be either a 5 speed ECM
or a variable speed ECM type. The blower motor shall be
isolated from the housing by rubber grommets. The motor
shall be permanently lubricated ball bearings and have
thermal overload protection.
28
SAH AIR HANDLER SPECIFICATION CATALOG
Revision Guide
Pages:
10-14
All
Description:
Date:
By:
Updated Wiring Schematics
02 May 2017
MA
Document Creation
01 May. 2017
JM
29
Product:
Type:
Size:
SAH Air Handler
R-410A
2 - 6 Tons
Document Type:
Part Number:
Release Date:
Specification Catalog
SC2518AG
05/17
©2017 The manufacturer has a policy of continual product research and development and reserves the right to change design and specifications without notice.
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