Airmax MaxAir 30 LV User manual

Brochure I0607B –Rev. 04-03-19
209 Citation Drive, Units 5 & 6
Concord, ON, Canada, L4K 2Y8
Telephone [phone]
Fax [phone]
E-mail: [e-mail]
Web Site: www.airmaxtechnologies.com
MaxAir30(e), 50(e), 70(e), 100(e) Low
Velocity (LV) Fan Coil Systems
Combination Heating/Cooling Equipment
Design, Installation and Maintenance
Instructions
AirMax Technologies Mini Ducted
MaxAir(e)fan coil systems
Important: Read and save these instructions.
Install in accordance with CEC and NEC; All wiring shall conform to CEC, NEC, and
local building and electrical codes.
CERTIFIED
FAN COIL UNITS

Table of Contents
INTRODUCTION ................................... 5
BENEFITS............................................................................................................................. 5
APPLICATIONS ...................................................................................................................... 5
PRODUCT DESCRIPTION ................................... 6
CABINET .............................................................................................................................. 6
HEATING COILS..................................................................................................................... 6
COOLING COILS .................................................................................................................... 6
FAN..................................................................................................................................... 6
OFF SEASON CIRCULATION..................................................................................................... 6
WATER HEATER .................................................................................................................... 6
BOILER ................................................................................................................................ 6
ACCESSORIES . .................................. 7
CHECK VALVE....................................................................................................................... 7
CIRCULATION PUMP............................................................................................................... 7
FLOW CONTROL VALVE.......................................................................................................... 7
EQUIPMENT SELECTION AND SIZING ................................... 7
SELECTING THE FAN COIL....................................................................................................... 9
SUPPLY DUCT DESIGN NOTES ................................................................................................. 9
RETURN DUCT DESIGN NOTES................................................................................................. 9
INDOOR AIR QUALITY ........................................................................................................... 10
COMBINATION MAXAIR FAN COILS AND HYDRONIC HEATING....................................................... 10
LOW WATER TEMPERATURE SYSTEMS................................................................................... 10
INSTALLATION . ................................ 11
AIR HANDLER MOUNTING...................................................................................................... 11
DOMESTIC WATER PIPING..................................................................................................... 11
ANTI-SCALD VALVE.............................................................................................................. 12
COOLING COIL &TX VALVE................................................................................................... 12
WATER HEATER/BOILER....................................................................................................... 12
DUCTWORK........................................................................................................................ 12
FAN COIL PLACEMENT.......................................................................................................... 13
TRUCK DUCT ...................................................................................................................... 13
BRANCH DUCTWORK ........................................................................................................... 13
AIRFLOW............................................................................................................................ 13
CONDENSATION.................................................................................................................. 13
DX REFRIGERANT COOLING .................................................................................................. 13
CONDENSING UNIT .............................................................................................................. 14
FREEZESTAT AND TX VALVE.................................................................................................. 14
EVAPORATOR COIL ASSEMBLY.............................................................................................. 14
REFRIGERATION PIPING ....................................................................................................... 15
CONDENSING UNIT WIRING ................................................................................................... 15
EVACUATING AND CHARGING................................................................................................ 15
ELECTRICAL (STANDARD UNITS) ................................ 15

THERMOSTAT ..................................................................................................................... 16
ELECTRICAL INFORMATION................................................................................................... 16
CONNECTION LOCATIONS..................................................................................................... 16
CHANGING MOTOR SPEED SETTINGS ..................................................................................... 16
FIGURE 1-CONNECTION LOCATIONS..................................................................................... 16
ELECTRICAL (MAXe UNITS) . ................................. 18
DCC7235 LAYOUT AND CONNECTIONS................................................................................... 18
POWER INPUT..................................................................................................................... 18
CONTROL SYSTEM INPUTS.................................................................................................... 18
OUTPUTS........................................................................................................................... 19
OUTPUTS WITH DIP SWITCH.................................................................................................. 21
TYPICAL HOOK UP ............................................................................................................... 26
DIMENSIONS AND MOUNTING ................................................................................................ 26
START-UP PROCEDURES ................................. 27
SEQUENCE OF OPERATION ................................. 28
SERVICE AND MAINTENANCE ................................. 29
FILTER............................................................................................................................... 29
DUCT CLEANING.................................................................................................................. 29
COILS................................................................................................................................ 29
AIR CONDITIONING COIL ....................................................................................................... 29
FAN AND MOTOR................................................................................................................. 29
EXTERNAL PUMP................................................................................................................. 30
TROUBLESHOOTING ................................ 30
EXTERNAL PUMP DOES NOT RUN........................................................................................... 30
EXTERNAL PUMP IS NOISY AT START-UP................................................................................. 30
WATER HEATER T&P IS WEEPING.......................................................................................... 30
INSUFFICIENT OR NO HEAT ................................................................................................... 30
COLD WATER AT HOT FAUCET............................................................................................... 30
FAN RUNS FOR COOLING BUT NOT HEATING............................................................................ 30
HEATING DURING OFF CYCLE................................................................................................ 31
WIRING DIAGRAM (STANDARD UNITS) . ......................... 31
WIRING DIAGRAM (MAXe UNITS) . ......................... 32
FAN COIL DIMENSIONS AND RETURN AIR SIZE AND LOCATION …………………..33
HORIZONTAL AIR FLOW SPACE CONSTRAINED
EVAPORATOR COIL SIZES ........................... 37
50/70/100 COOLING COIL FILTER FRAME CABINET .......................... 38
VERTICAL AIR FLOW EVAPORATOR COILS ……………………39
1, 1.5, 2 TON EVAPORATOR COIL SIZES ……………………40

2, 2.5 TON EVAPORATOR COIL SIZES ……………………41
SAMPLE PIPING SCHEMATICS .......................... 42
TERMS AND CONDITIONS OF SALE . ......................... 46
WARRANTY REGISTRATION ......................... 47
WARRANTY PARTS REQUEST ......................... 48

Page 5
INTRODUCTION .
The MaxAir(e)™line of combo air handlers
is specifically designed for use in residential
and commercial combination space and
water heating systems (Combo Systems).
Combo heating systems use the home’s
water heater or boiler to provide both space
heating and domestic hot water, eliminating
the need for a furnace.
Combo heating systems are ideally suited for
single family homes, townhouses and
apartments where the use of a furnace may
not be feasible or where space requirements
are limited. They can also be used for
additions, renovations, and finished
basements as a replacement for, or in
addition to the existing heating system. Our
air handlers are the smallest units available
in their capacity range.
We provide you with the quietest operating
air handler available. By using large capacity,
high output heating coils, our product
delivers more heating per volume of air than
any of our competitors, which means warmer
delivered air temperatures. Our blower fans
are also the widest available in their size
range, which translates into slower fan
speeds to deliver the same amount of air. All
these features add up to warmer, more
comfortable air, quiet operation, and a
satisfied customer.
Water heaters, boilers and air handlers can
be purchased from a wholesale supplier,
rented from your Gas Utility, or purchased
from Airmax Technologies as part of a
complete heating package.
Benefits of the MaxAir(e)™Low Velocity
systems are:
Very little maintenance required.
Can be installed in existing structures with
minimal structural changes.
Provides a quiet, draft free environment.
MaxAir(e)™Low Velocity systems
applications:
Retrofit construction to add heating,
cooling, humidification, or filtration to a
building.
New construction to deliver air throughout
the entire building envelope.