Product Information Guide

ELECTRI PAK
Integral Electric Heat Module
for DX Fan Coil Units
Designed to provide a heating option for SpacePak
systems. Easy to install in both new and existing
systems and fit directly inside horizontal fan coil units.
Equipped with an internal modulating feature, heat
discharge temperatures are sensed and can be
controlled regardless of load condition. Heater design
eliminates the need for external regulating devices
such as a multi-stage (W3) and/or outdoor thermostat.
Entering Water Temperature (F)
GPM 120 140 160 180 200
2 31.7 46.2 61.2 75.1 89.0
4 45.6 64.2 83.0 102.0 120.9
6 50.6 71.2 92.0 112.9 133.8
8 53.1 74.7 96.4 118.2 140.1
10 54.6 76.7 98.9 121.2 143.6
MODEL AC-WPAK-120 for ESP 4860
WPAK Hydronic heating coil is designed for use with
SpacePak fan coil units. Easily Mount to the inlet of
the fan coil unit. Use the chart below to match
the proper hydronic coil with the SpacePak
Fan Coil Unit
Entering Water Temperature (F)
GPM 120 140 160 180 200
2 28.8 39.2 51.6 63.4 75.2
4 36.0 50.8 65.7 80.8 95.8
6 39.0 54.9 70.9 87.0 103.1
8 40.4 56.8 73.3 89.9 106.5
10 41.2 57.9 74.7 91.5 108.4
MODEL AC-WPAK-90 for ESP 3642
Entering Water Temperature (F)
GPM 120 140 160 180 200
2 20.5 30.0 39.1 48.1 57.2
4 25.2 35.6 46.1 56.6 67.1
6 26.6 37.4 48.3 59.2 70.2
8 27.2 38.2 49.3 60.4 71.6
10 27.5 38.7 49.9 61.1 72.3
MODEL AC-WPAK-60 for ESP 2430
Model Nominal Air Flow Minimum Air Flow Model
AC-EPAK-10 550 440 ESP-2430
AC-EPAK-15 850 680 ESP-3642
AC-EPAK-20 1150 920 ESP-4960
Electric Heat Heat Output 208/1/60 230/1/60 Fan Coil Unit
Module Model @ 240V FLA MCA FLA MCA Model
AC-EPAK-10 10kW 48 60 43 54 ESP-2430
AC-EPAK-15 15kW 72 90 65 52 ESP-3642
AC-EPAK-20 20kW 96 120 87 109 ESP-4960
HEATER COMPATIBILITY/CIRCUIT SIZE
MINIMUM AIR FLOW REQUIREMENTS (CFM)
HEATING OPTIONS
CAUTION:
Areas shaded in tan can exceed
160°F leaving air temperature.
To prevent injury or damage, do not
install floor outlets when the system
is operating in this range.
10
HEATING CAPACITY MBH
MODEL WPAK HYDRONIC COIL
At 850 CFM and 70°F Entering Air Temperature*
At 550 CFM and 70°F Entering Air Temperature*
At 1150 CFM and 70°F Entering Air Temperature*
*To calculate Leaving Air Temperature (LAT)
use the following formula:
LAT=(BTUH/(1.08XCFM)) +70
GPM AC-WPAK-60 AC-WPAK-90 AC-WPAK-120
2 0.4 0.4 0.5
4 1.4 1.6 1.7
6 3.0 3.3 3.7
8 5.2 5.7 6.3
10 7.9 8.7 9.6
Water Pressure Drop (in feet @ 180°)