Vortex combo-pac Installation Instructions Manual
Installation Instructions
TM
combo-pac
hot water air handler
with high efficiency EC motor and
iStat6 Control
45 Cowansview Rd.
Cambridge, Ontario
N1R 7L2
Phone: 888-781-8151
Fax: 888-670-2544
info@vortexsource.com
www.vortexsource.com
CP-1605
CP-1605
Table of Contents
TYPICAL PLUMBING CONNECTIONS .......................................................................................................... 5
ELECTRICAL WIRING DIAGRAM .................................................................................................................. 7
INTRODUCTION ............................................................................................................................................ 10
HOW IT WORKS ........................................................................................................................................... 11
COOLING.......................................................................................................................................................... 11
HEATING .......................................................................................................................................................... 11
CONTINUOUS FAN ............................................................................................................................................ 11
PRODUCT DESCRIPTION ............................................................................................................................ 11
CABINET .......................................................................................................................................................... 11
HEATING COILS ................................................................................................................................................ 12
FAN AND MOTOR .............................................................................................................................................. 12
CIRCULATING PUMP .......................................................................................................................................... 12
CHECK VALVE .................................................................................................................................................. 12
CONNECTING TO A WATER HEATER ................................................................................................................... 12
CONNECTING TO A BOILER ................................................................................................................................ 12
EQUIPMENT SELECTION AND SIZING ...................................................................................................... 13
HEAT LOSS ...................................................................................................................................................... 13
AIR HANDLER SELECTION ................................................................................................................................. 13
DUCT LAYOUT .................................................................................................................................................. 13
PLUMBING LAYOUT ........................................................................................................................................... 14
INSTALLATION ............................................................................................................................................. 14
AIR HANDLER MOUNTING .................................................................................................................................. 15
DUCTWORK ...................................................................................................................................................... 15
RISK OF FREEZING ........................................................................................................................................... 16
ELECTRICAL ................................................................................................................................................ 16
THERMOSTAT ................................................................................................................................................... 16
A/C CONDENSING UNIT .................................................................................................................................... 17
START-UP PROCEDURES........................................................................................................................... 17
SERVICE AND MAINTENANCE ................................................................................................................... 19
TROUBLESHOOTING ................................................................................................................................... 20
REFER TO THE CONTROLS MANUAL AS WELL. ..................................................................................................... 20
THERMOSTAT CALL ERROR ............................................................................................................................... 20
PUMP DOES NOT RUN ........................................................................................................................................ 20
PUMP IS NOISY AT START-UP ............................................................................................................................. 20
WATER HEATER T&P IS WEEPING ...................................................................................................................... 20
INSUFFICIENT OR NO HEAT ................................................................................................................................ 20
COLD WATER AT HOT FAUCET ............................................................................................................................ 21
FAN RUNS FOR COOLING BUT NOT HEATING ........................................................................................................ 21
HEATING DURING STANDBY MODE ..................................................................................................................... 21
combo-pac AIR HANDLER PARTS & ACCESSORY LIST ........................................................................ 22
PRODUCT WARRANTY ............................................................................................................................... 23
CP-1605
Important notes For the Installer
A Quick Check List
Are the water connections to the water heater oriented in a way to
avoid trapping air in the heating circuit? (see diagram on next page)
Is the purge valve installed on the return line from the air handler
upstream from the isolation valve?
Is the air handler hung and isolated to avoid transmitting vibration
through framing and duct work? Or is the air handler on a
housekeeping pad?
Are the isolation valves full-port? Restrictive valves will limit
performance.
Are Thermostat connections correct, including cooling and continuous
run connections?
Have the packing materials been removed from the blower and the
pump ?
Is there an installation manual for the home owner ?
Is the unit accessible? Are there clearances for service and component
replacement?
Are the supply plenum and return duct/drop acoustically lined ? (at
least 6ft. of the return duct/drop and the supply plenum are
recommended)
Is the filter cover in place? Is a clean filter in place? Is the supplied
filter rack installed?
CP-1605
TYPICAL PLUMBING CONNECTIONS
CP-1605
CP-1605
ELECTRICAL WIRING DIAGRAM
Motor choke required for 3/4hp only
CP-1605
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