Unico M Series Installation Manual

General
The information on the following pages is to help the in-
staller save time, provide the best possible installation and
insure continuous trouble-free operation.
The Unico System Hot Water Coil is designed for use
with the Unico 'M' series air handlers and the Unico air
distribution system. The coil is designed to be used with
virtually any source of hot water including gas, oil, or
electric boilers; wood-fired boilers; solar heating systems;
or domestic hot water "Combo" systems.
Scope
These instructions apply to the Unico "M" Series slide-in
heating coils. Refer to Bulletin 20-20.4 for performance
tables for the HW2430 and HW3660. Refer to Bulletin
30-10 for the HW1218 performance tables and pressure
drops.
Refer to the boiler or hot water heater manufacturer's
instructions for piping and pump layout and installation.
Equipment
Unico manufactures three size hot water heating coils that
are designed to slide into a Unico M Series Heating Mod-
ule or the single piece M1218 fan-coil unit. Model
HW1218 fits the M1218 unit, model HW2430 fits into the
MH2430 and MV2430 cabinets and model HW3660 fits
into the MH3660 and MV3660 cabinets. All necessary
mounting brackets are included. The Heating Modules are
sold separately or including the coil with the MH mod-
ules.
NOTICE TO INSTALLER
OWNER: RETAIN THIS MANUAL AT THE JOB.
FULL BUILDING INSULATION IS ESSENTIAL
FOR THE MOST ECONOMICAL OPERATION
General Precautions and Safety Tips
AND EQUIPMENT
Bulletin 30-30 / October 2007
INSTALLATION MANUAL
'M' SERIES
SLIDE-IN HEATING COIL
Do not attempt to install or startup unit without first read-
ing and understanding the appropriate sections in this
manual.
Installation should be in accordance with all local codes
and regulations and with the applicable National Fire Pro-
tection Association (NFPA) standards. In case of conflict,
local codes take precedence.
All electrical wiring should be in accordance with the
latest edition of the National Electrical Code and all local
codes and regulations. The unit is safety certified to UL
1995 and listed with ETL.
Always install a secondary drain pan when water could
cause damage.
Unpacking
All coils are inspected prior to shipping and are carefully
packaged in individual cartons. Inspect all cartons prior to
unpacking. Notify carrier of any damage.
Open each carton to remove the coils. Inspect for visible
signs of concealed damage and notify carrier of any such
damage. All materials are sold FOB Factory and it is the
responsibility of the consignee to file any claims with the
delivering carrier for materials received in damaged con-
dition.
Installation
The coil may be inserted into the Heat Module cabinet
before or after the module is installed. Refer to Bulletin
30-20 for the air handler installation instructions.
Use the following steps to insert the coil:
1. Remove the access plate from the side of the Heat
Module.
2. Cut the insulation away, using the opening as tem-
plate. Retain insulation for Step 5.
3. Slide the coil in as far as possible so return bends
press into the insulation on the inside of the module
CERTIFIED TO UL STD 1995
CAN/CSA STD C22.2 NO. 236
FOR
© Copyright 2007 Unico, Inc.