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Submittal Data
Engineering Design Guide
Heat Controller GeoMax 2
HT Series Ratings
T
ARI/ASHRAE/ISO 13256-1
at EWT (Entering Water Temperature)
WARNING! To avoid possible injury
or death due to electrical shock, open
the power supply disconnect switch
and secure it in an open position
during installation.
HTV/HTD/HTH024
T
HTV/HTD/HTH036
CAUTION! Use nly copper
conductors for eld installed electrical
HTV/HTD/HTH048
wiring. Unit terminals are not
designed to accept other types of
HTV/HTD/HTH060
conductors.
HTV/HTD/HTH070
Heating capacities based upon 68°F DB, 59°F WB entering air temperature.
HT Electrical Data
HT Electrical Data
Model
Voltage
Model
Code
024
208/230-60/1
024
1
208/230-60/1
036
208/230-60/1
036
1
208/230-60/1
048
208/230-60/1
048
1
208/230-60/1
060
208/230-60/1
060
1
208/230-60/1
070
208/230-60/1
070
1
208/230-60/1
—HACR circuit breaker in USA only — All fuses class RK-5
* HACR Circuit Breaker in USA Only
—Wire length based on one way measurement with 2% voltage drop
Min/Max Voltage of 197/254
—Wire size based upon 60°C copper conductor and minimum circuit ampacity
HACR circuit breaker in USA only
All Fuses Class RK-5
All fuses Class RK-5
HT Physical Data
Wire size based on 60°C copper conductor and Minimum Circuit Ampacity.
Wire length based on one way measurement with 2% voltage drop
HTV/HTH/HTD SERIES
HTV/HTD/HTH SERIES
ELECTRICAL - LINE VOLTAGE
Two Stage Geothermal Heat Pump Systems
WARNING!
CAUTION!
Table 4: Electrical Data (Standard Units) HTV/HTD
Compressor
Min/Max
Voltage
Min/Max
Voltage
QTY
Voltage
Voltage
197/254
1
197/254
197/254
1
197/254
197/254
1
197/254
197/254
1
197/254
197/254
1
197/254
(2) 14-24
Geothermal Heat Pump Systems
n
ELECTRICAL - LINE VOLTAGE
All eld installed wiring, including electrical
ground, must comply with the National
Electrical Code as well as all applicable
local codes. Refer to the unit electrical
data for fuse sizes. Consult wiring diagram
for eld connections t at must be made by
the installing (or electrical) contractor. All
nal electrical connections must be made
with a length of exible conduit to minimize
vibration and sound transmission to the
building.
GENERAL LINE VOLTAGE WIRING
Be sure the available power is the same
voltage and phase 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.
HWG
Ext
Pump
Loop
Motor
Compressor
RLA
LRA
FLA
FLA
QTY
RLA
LRA
10.7
56.0
0.4
4.0
1
10.3
52.0
17.0
87.0
0.4
4.0
1
16.7
82.0
21.5
100.0
0.4
4.0
1
21.2
96.0
27.6
125.0
0.4
4.0
1
25.6
118.0
27.6
153.0
0.4
4.0
27.2
154.5
1
27.2
150.0
Two-Stage Scroll
20
ECM Variable Speed
(2) 14x30
(2) 10x30
(1) 16x30
(1) 12x30
(1) 20x30
5
5
7
Fan
Total
Min
Max
Unit
Circuit
Fuse
Fan Motor
Total Unit
FLA
FLA
Amp
Size *
FLA
FLA
4. 3
19.4
22.1
30
3.9
18.6
4. 3
25.7
30.0
45
3.9
25.0
7. 0
32.9
38.3
50
6.9
32.5
7.0
37.4
43.9
60
6.9
36.9
7.0
39.0
45.9
70
38.6
45.4
6.9
38.5
36x25
(1) 16x30
(1) 20x30
Heat Controller, Inc.
Heat Controller, Inc.
Supply Wire
Min.
Max.
AWG
Ft.
MCA
Max/Fuse
10
86
21.2
30
8
63
29.2
45
8
78
37.8
50
6
108
43.3
60
6
101
45.3
70
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