2
4. Installation Preparation
4A. Clearances
4B. Recess Mounting or Wall Mounting Option
4C. Condensate Drain
Read all the instructions in this guideline carefully while paying spe-
cial attention to the WARNING and CAUTION alerts. If any of the
instructions are unclear; clarify with certified technicians. Gather all
the tools needed for successful installation of the unit prior to begin-
ning the installation.
This unit is designed for zero clearance installation on three sides
and adequate clearance to provide access for service in the front.
A minimum of 2.5 – 3.5 feet clearance is recommended on the front
end (Fig 4A-1).
These units are designed to be installed in a small room where they
can be mounted above a water heater or recessed into a wall. The
unit should be installed in Vertical Upflow position ONLY.
If installing the air handler into a recessed wall, the unit must leave
clearance to allow the removal of the front panels. The bottom of the
unit should also rest on a sturdy platform or floor. The unit must be
level to allow condensate drainage.
These air handlers come with an offset mounting bracket that at-
taches the air handler to the wall when the unit is flush mounted to
the wall.
The drain lines must be installed with ¼” per foot pitch to provide free
drainage. A condensate trap MUST be installed on the primary drain
line to ensure proper drainage of the condensate. The trap must be
installed in the drain line below the bottom of the drain pan (Fig.
4C-1)
Since coil is upstream of the blower, all
drains MUST be trapped or sealed. Failure
to do so will result in condensate overflow
from the drain pan. Airmark will NOT be responsible for any
damages resulting from failure to follow these instructions.
CAUTION
!
The drain pan has primary (red) and secondary (white) drain connec-
tions. If a secondary drain line is required, it should be run separately
from the primary and should terminate in a highly visible location.
Condensate disposal through the secondary drain line indicates that
the primary drain line is plugged and needs cleaning. If a second-
ary drain line will not be provided, plug the secondary drain. Drain
plugs are NOT to be reused without plumbers tape or putty. Drain
line connection should be finger tightened, then turned no more than
one complete turn as needed to ensure a firm connection. DO NOT
overtighten connection or damage may occur.
Fig 4A-1. Minimum Clearance for Air Handler
Fig 4C-1. Condensate Drain Trap
3. Inspection
Drain lines from the auxiliary drain pan
should NOT be connected to the primary
drain line of the coil.
CAUTION
!
ü
On receiving the product, visually inspect it for any major shipping
related damages. Shipping damages are the carrier’s responsibility.
Inspect the product labels to verify the model number and options
are in accordance with your order. Manufacturer will not accept dam-
age claims for incorrectly shipped product.
If the drain pan is constructed of nylon
or plastic; use Teflon tape to connect the
drain lines to the threads in the drain pan.
DO NOT USE SOLVENT BASED PIPE DOPE. THIS WILL RE-
DUCE THE LIFE OF THE PAN.
CAUTION
!
