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Engineering Design Guide HTV/HTD/HTH SERIES Heat Controller, Inc.
5
HT Series Ratings
ARI/ASHRAE/ISO 13256-1
at EWT (Entering Water Temperature)
—HACR circuit breaker in USA only — All fuses class RK-5
—Wire length based on one way measurement with 2% voltage drop
—Wire size based upon 60°C copper conductor and minimum circuit ampacity
HT Physical Data
(2) 14-24 (2) 14x30 (2) 10x30 (1) 16x30 (1) 16x30
(1) 12x30 (1) 20x30 (1) 20x30
Heat Controller GeoMax 2
n
Geothermal Heat Pump Systems
Heating capacities based upon 68°F DB, 59°F WB entering air temperature.
ELECTRICAL - LINE VOLTAGE
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 tKat 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.
T
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.
WARNING!
T
CAUTION! UseRnly copper
conductors for eld installed electrical
wiring.Unit terminals are not
designed to accept other types of
conductors.
CAUTION!
Table 4: Electrical Data (Standard Units) HTV/HTD
20
Compressor
Model Voltage
Min/Max
Voltage
QTY RLA LRA
HWG
Pump
FLA
Ext
Loop
FLA
Fan
Motor
FLA
Total
Unit
FLA
Min
Circuit
Amp
Max
Fuse
Size *
024 208/230-60/1 197/254 1 10.7 56.0 0.4 4.0 4.3 19.4 22.1 30
036 208/230-60/1 197/254 1 17.0 87.0 0.4 4.0 4.3 25.7 30.0 45
048 208/230-60/1 197/254 1 21.5 100.0 0.4 4.0 7.0 32.9 38.3 50
060 208/230-60/1 197/254 1 27.6 125.0 0.4 4.0 7.0 37.4 43.9 60
*
HACR Circuit Breaker in USA Only
All Fuses Class RK-5
070 208/230-60/1 197/254 1 27.6 153.0 0.4 4.0 7.0 39.0 45.9 70
HT Electrical Data
Min.
AWG
Max.
Ft.
10 86
8 63
8 78
6 108
6 101
Supply Wire
Two-Stage Scroll
27.2
154.5
38.6
45.4
36x25
ECM Variable Speed
5
Min/Max Voltage of 197/254
HACR circuit breaker in USA only
All fuses Class RK-5
Wire size based on 60°C copper conductor and Minimum Circuit Ampacity.
Wire length based on one way measurement with 2% voltage drop
HTV/HTD/HTH024
HTV/HTD/HTH036
HTV/HTD/HTH048
HTV/HTD/HTH060
HTV/HTD/HTH070
Model
Voltage
Code Voltage
Min/Max
Voltage
Compressor
Fan Motor
FLA
Total Unit
FLA MCA Max/FuseQTY RLA LRA
024 1 208/230-60/1 197/254 1 10.3 52.0 3.9 18.6 21.2 30
036 1 208/230-60/1 197/254 1 16.7 82.0 3.9 25.0 29.2 45
048 1 208/230-60/1 197/254 1 21.2 96.0 6.9 32.5 37. 8 50
060 1 208/230-60/1 197/254 1 25.6 118.0 6.9 36.9 43.3 60
070 1 208/230-60/1 197/254 1 27.2 150.0 6.9 38.5 45.3 70
HT Electrical Data
Two Stage Geothermal Heat Pump Systems