Manual 2100-537
I
Page 19 of 54
TABLE 5
ELECTRICAL HEAT SPECIFICATIONS
+ Based upon 75°C copper wire. All wiring must conform to National Electric Code (Latest Edition) and all local codes.
For Use
With
Heater
Package
Heater
Package
240 Volts 208 Volts
Minimum
Circuit
Ampacity
Maximum
HACR
Circuit
Breaker
Field
Wire
Size
+
KW Amps BTUH KW Amps BTUH
All
GTC*S2
Models
8604-080 240/208-60-1 5.0 20.8 17,065 3.75 18.0 12,799 26.0 30 #10
8604-081 240/208-60-1 9.8 40.8 33,447 7.35 35.3 25,086 52.0 60 #6
8604-082 240/208-60-1 14.7 61.2 50,171 11.0 52.9 37,543 76.6 80 #4
8604-083 240/208-60-1 19.2 81.7 65,530 14.4 69.2 49,147 102.0 125 #1
FILTER
This unit must NOT be operated without a lter installed
on return air side of the system. Insufcient airow due
to undersized duct systems, inadequate lter size, or dirty
lters can result in nuisance tripping of the high or low
pressure controls. The ductwork and lter sizing must be
designed per ASHRAE/ACCA Guidelines.
Step #1 Refer to Table 1 (Page 4) for specic unit airow
and static application information.
Step #2 Refer to Figures 5A, 5B, 5C and 5D (Page 20) for
typical installation lter congurations for your
specic application.
Step #3 Refer to Table 6 Filter Sizing Chart (Page 19)
matching your airow and lter conguration to
determine proper lter sizing.
CONDENSATE DRAIN
Drain lines must be installed according to local plumbing
codes. It is not recommended that any condensate drain
line be connected to a sewer main.
NOTE: This drain line will contain cold water and must
be insulated to avoid droplets of water from compressor
on the pipe and dripping on nished oors or the ceiling
below the unit.
PIPING ACCESS TO UNIT
Water piping to and from the unit enters the unit cabinet on
the left side of the unit. The connection directly at the unit
is a special double o-ring tting with a retainer nut that
secures it in place. (It is the same style tting used for the
ow center connection on ground loop applications.)
NOTE: All double o-ring ttings require “hand tightening
only”. Do not use wrench or pliers as retainer nut can be
damaged with excessive force.
NOTE: Apply petroleum jelly to o-rings to prevent
damage and to aid in insertion.
Various ttings are available so you may then connect
to the unit with various materials and methods. These
methods include 1" barbed ttings (straight and 90°),
1" MPT (straight and 90°), and 1-1/4" hot fusion tting
(straight only) (see Figure 7).
CAUTION
NEVER OPERATE MORE THAN 10KW STRIP HEAT WITH GEOTHERMAL HEAT
PUMP OPERATIONAL. USE ADDITIONAL KW STRIP HEAT BEYOND 10KW ONLY IN
EMERGENCY HEAT MODE.
