3
DAR0904 Temperature Rise Table (Degrees F)
208
240
480
2800
14
19
19
2900
14
18
18
3000
13
18
18
3100
13
17
17
3200
12
17
17
2800
19
25
25
2900
18
24
24
3000
18
24
24
3100
17
23
23
3200
17
22
22
2800
28
38
38
2900
27
37
37
3000
27
35
35
3100
26
34
34
3200
25
33
33
Airhandler
Heat Kit
KW
CFM
Supply Voltage
15
20
DAR0904
Tempera ture
Ri s e Ta bl e
(Degrees F)
30
Table 4.
DAR1204 Temperature Rise Table (Degrees F)
208
240
480
3800
10
14
14
3900
10
14
14
4000
10
13
13
4100
10
13
13
4200
9
13
13
3800
14
19
19
3900
14
18
18
4000
13
18
18
4100
13
17
17
4200
13
17
17
3800
21
28
28
3900
20
27
27
4000
20
27
27
4100
19
26
26
4200
19
25
25
CFM
Supply Voltage
DAR1204
Tempera ture
Ri s e Ta bl e
(Degrees F)
15
20
30
Airhandler
Heat Kit
KW
Table 5.
NOTE:
Table 5 is calculated with both stages of electric heat en-
gaged (2 stage heat systems). For systems using staged electric
heat, divide the temperature rise from the table by 2 for 1
st
stage
operation.
E
LECTRICAL
S
UPPLY
W
IRE
AND
MOP
T
O
AVOID
THE
RISK
OF
FIRE
OR
EQUIPMENT
DAMAGE
,
USE
COPPER
CONDUCTORS
ONLY
.
WARNING
T
O
AVOID
PROPERTY
DAMAGE
,
PERSONAL
INJURY
OR
DEATH
DUE
TO
ELECTRICAL
SHOCK
,
THIS
UNIT
MUST
HAVE
AN
,
ELECTRICAL
GROUND
. T
HE
ELECTRICAL
GROUND
CIRCUIT
MAY
CONSIST
OF
AN
APPROPRIATELY
SIZED
ELECTRICAL
WIRE
CONNECTING
THE
GROUND
LUG
IN
THE
UNIT
CONTROL
BOX
TO
THE
BUILDING
ELECTRICAL
SERVICE
PANEL
.
O
THER
METHODS
OF
GROUNDING
ARE
PERMITTED
IF
PERFORMED
IN
ACCORDANCE
WITH
THE
N
ATIONAL
E
LECTRIC
C
ODE
(NEC)/A
MERICAN
N
ATIONAL
S
TANDARDS
I
NSTITUTE
(ANSI)/N
ATIONAL
F
IRE
P
ROTECTION
A
SSOCIATION
(NFPA) 70
AND
LOCAL
/
STATE
CODES
. I
N
C
ANADA
,
ELECTRICAL
GROUNDING
IS
TO
BE
IN
ACCORDANCE
WITH
THE
C
ANADIAN
E
LECTRIC
C
ODE
(CSA) C22.1.
UNINTERRUPTED
UNBROKEN
WARNING
INSPECTION OF THE BUILDING ELECTRICAL SERVICE.
T
HIS
UNIT
IS
DESIGNED
FOR
3-
PHASE
OPERATION
. DO NOT OPERATE
ON A SINGLE PHASE POWER SUPPLY. SEE THE “WARNING“
ABOVE.
M
EASURE
THE
POWER
SUPPLY
TO
THE
UNIT
. T
HE
SUPPLY
VOLTAGE
MUST
BE
IN
AGREEMENT
WITH
THE
UNIT
NAMEPLATE
POWER
REQUIREMENTS
AND
WITHIN
THE
RANGE
SHOWN
IN
T
ABLE
6.
WARNING
Building Electrical Service Inspection
This unit is designed for 3-phase operation.
DO NOT OPERATE
ON A SINGLE PHASE POWER SUPPLY. SEE THE PRECEDING
WARNING.
Measure the power supply to the unit. The supply
voltage MUST be in agreement with the unit nameplate power
requirements and within the range shown in Table 6.
Minimum Supply
Maximum Supply
Voltage
Voltage
208 – 230
187
253
460
414
506
Nominal
Table 6.
Voltage Balance The supply voltage shall be unbalance (phase to
phase) within 2%. To calculate the percentage of voltage unbalance
use the following formula:
Percentage
Max Voltage Deviation From Avg Volt-
age Unbalance = 100 x
Average Voltage
Example
.
L1 – L2 = 220 V
L2 – L3 = 216 V
L1 – L3 = 213 V
Avg. Voltage
=
(220+216+213) / 3
=
649 / 3
=
216
Max. Deviation from Avg. = 220 – 216 = 4
% Voltage Unbalance
= 100 x (4 / 216)
= 400 / 216
= 1.8%
