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262673-UIM-B-0707

Unitary Products Group

3

DOWNFLOW AND HORIZONTAL CONVERSION

These air handler units are supplied ready to be installed in a upflow,
downflow and left or right hand horizontal position.

If the unit is to be installed with an evaporator coil, refer to Figure 1 for
unit positioning information.

AIR HANDLER AND COIL UPFLOW AND 

HORIZONTAL INSTRUCTIONS

1.

Apply neoprene gasket to top of coil.

2.

Position blower casing over coil opening.

NOTE: 

Tie plate and screws are provided with coils.

3.

Attach tie plate to casings of air handler and coil using screws.

4.

Remove blower access panel.

5.

Fasten duct flanges of coil to duct flanges of air handler with
screws. See Figure 2.

6.

Secure base of air handler to top of coil using screws.

7.

Complete electrical and blower speed connections as outlined in
other sections of this document.

8.

Reposition and replace blower access panel.

AIR HANDLER AND COIL DOWNFLOW 

INSTRUCTIONS

1.

Position blower casing over duct connection and secure such that
the supply air end of the blower is down.

2.

Apply neoprene gasket to return-air side of air handler.

3.

Place coil casing over blower return opening.

NOTE: 

Tie plate and screws are provided with coils.

4.

Attach tie plate to casings of air handler and coil using screws.

5.

Remove blower access panel and coil filter door.

6.

Fasten duct flanges of coil to base of air handler with screws. See
Figure 2.

7.

Secure base of air handler to base of coil using screws.

8.

Complete electrical and blower speed connections as outlined in
other sections of this document.

9.

Reposition and replace blower access panel.

 FIGURE 1:  

Typical Installation with MC or FC Evaporator Coil

UPFLOW

DOWNFLOW

HORIZONTAL RIGHT

HORIZONTAL LEFT

 FIGURE 2:  

Coil and Air Handler Attachment Details

TIE PLATE

COIL

AIR HANDLER

COIL

TOP PLATE

AIR HANDLER

DOWNFLOW

APPLICATION

UPFLOW & HORIZONTAL

APPLICATIONS

Содержание MA - 115V

Страница 1: ...rate injury It is also used to alert against unsafe practices and hazards involving only property dam age Improper installation may create a condition where the operation of the product could cause personal injury or property damage Improper installation adjustment alteration service or mainte nance can cause injury or property damage Refer to this manual for assistance or for additional informati...

Страница 2: ...e who have not kept up with changing residential and non HUD modular home construction practices These instructions are required as a minimum for a safe installation INSPECTION As soon as a unit is received it should be inspected for possible dam age during transit If damage is evident the extent of the damage should be noted on the carrier s freight bill A separate request for inspection by the c...

Страница 3: ...is document 8 Reposition and replace blower access panel AIR HANDLER AND COIL DOWNFLOW INSTRUCTIONS 1 Position blower casing over duct connection and secure such that the supply air end of the blower is down 2 Apply neoprene gasket to return air side of air handler 3 Place coil casing over blower return opening NOTE Tie plate and screws are provided with coils 4 Attach tie plate to casings of air ...

Страница 4: ...al and or national codes This includes the standards of the National Fire Protection Association for Installation of Air Conditioning and Ventilat ing Systems NFPA No 90B AIR FILTERS Air filters and filter racks must be field supplied SUSPENSION KITS A suspension kit is available Models 1BH0601 unit size 018 060 is designed specifically for the units contained in this instruction upflow applicatio...

Страница 5: ...s The humidity switch should be connected to the R and HUM terminals of the control See Figure 8 SECTION V REQUIRED CONTROL SET UP IMPORTANT The following steps must be taken at the time of installa tion to insure proper system operation 1 Consult system wiring diagram to determine proper thermostat wiring for your system 2 HEAT ENABLE jumper must be set to NO HEAT position 3 If a humidstat is ins...

Страница 6: ... can be used to drive an external relay 24 VAC coil that switches the power input to the motor to a lower speed tap An accessory kit is available for this application The LOW FAN output is energized when the control has the following inputs as shown in Table 4 Blower Delays The control includes the following blower delays as shown in Table 5 SECTION VI LINE POWER CONNECTIONS Power may be brought i...

Страница 7: ...1607 1533 1463 1395 1319 1044 851 725 673 673 Med 1308 1258 1197 1146 1097 887 742 648 608 609 Low 1148 1108 1061 1017 976 807 690 613 582 582 MC43B High 1462 1396 1322 1254 1172 1067 941 693 585 464 Med 1205 1154 1102 1046 980 897 704 560 441 220 Low 1075 1020 969 906 842 735 592 470 364 190 16C MC42C High 1959 1874 1802 1708 1606 1486 1408 1264 953 810 Med 1631 1587 1542 1473 1395 1315 1218 967 ...

Страница 8: ... Control Board 4 MODE Jumper on AH control board should be set to A C for air conditioners and HP for heat pumps SECTION IX MAINTENANCE Filters must be cleaned or replaced when they become dirty Inspect at least once per month The frequency of cleaning depends upon the hours of operation and the local atmospheric conditions Clean filters keep unit efficiency high LUBRICATION The bearings of the bl...

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