Installation Guide

18 Hydronic Air Handler Installaon and Operaon Manual
Gather the required tools and parts before
starting installation. Read and follow the
instructions provided with any tools listed below.
• 1/4 in. nut driver
• Level
• Screwdriver
• Adjustable wrench
• Tape Measure
• Hammer
• AHRI Approved Duct Sealant
• UL listed wire nuts
When choosing an installation location, you must
ensure proper clearances will be met; the
installation environment; water quality; and the
need for freeze protection.
Carefully unpack the air handler. If the unit is
damaged, contact your local dealer/distributor.
Do not attempt to use the air handler if it
appears damaged.
The blower section is factory assembled and all
components are performance tested.
The air handler consists of a blower assembly
and controls in an insulated, galvanized steel
factory finished enclosure. Knockouts are
provided for electrical wiring entrance.
Inspect the following:
• Check the air handler rating plate to confirm
specifications are as ordered.
• Upon receipt of air handler, thoroughly
inspect the system for possible shipping
damage. If the carton appears damaged,
closely examine the air handler inside the
carton.
• If the air handler appears to be damaged or
is torn loose from its anchorage, the air
handler must be immediately examined by
the receiving party before removal. If
damage is found, the receiving party must
sign the driver’s delivery receipt noting all
damage (i.e. carton damage and/or product
damage), as well as contact the last carrier
immediately, preferably in writing,
requesting inspection by the carrier’s agent.
• To prevent loss or damage, leave all parts
in original packages until installation.
Contaminant Maximum Level
Total Hardness Up to 200 mg/L
Aluminum * Up to 0.2 mg/L
Chlorides * Up to 250 mg/L
Copper * Up to 1.0 mg/L
Dissolved Carbon
Dioxide (CO2)
Up to 15.0 mg/L
Iron * Up to 0.3 mg/L
Manganese * Up to 0.05 mg/L
pH * 6.5 to 8.5
TDS (Total Dissolved
Solids) *
Up to 500 mg/L
Zinc * Up to 5 mg/L
* Source: Part 143 National Secondary
Drinking Water Regulations
This section provides information on the
importance of water quality to the air handler. The
information is intended to serve as general
guidelines only and is not a complete list of water
quality guidelines.
Consideration of care for the air handler should
include evaluation of water quality.
• The water must be potable, free of corrosive
chemicals, sand, dirt, or other contaminants.
• It is up to the installer to ensure the water
does not contain corrosive chemicals or
elements that can affect or damage the boiler
or tankless water heater.
• Water that contains chemicals exceeding the
levels below can damage the boiler or
tankless water heater.