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6

3.  Removal of the center support is required on units 

with 21” wide cabinet. Remove and retain the two (2) 

screws that secure the center support to the cabinet. 

Remove the center support.

4. 

Position the unit in the downflow position.

5.  Remove side drain pan extension if present.

6.  Using the drain pan to hold the coil assembly, slide the 

coil assembly back into the cabinet on the downflow 

brackets as shown in Figure 8.

7.  Reinstall the center support (if removed) using the two 

(2) screws removed in Step 5.

8.  Reinstall the coil access panels and reinstall blower 

access panel removed in Step 1 as shown in Figure 

10.

9.  Drain Connections for Horizontal Right Installation

a.  Drain port labeled (B) in Figure 2 is the primary 

drain for this application and condensate drain line 

must be attached to this drain port. Drain port (b) 

is for the secondary drain line (if used).

b.  Remove red plugs from side drain pan before 

connecting condensate drain pipes. Use removed 

plug to close drain ports on vertical drain pan.

NOTE: If removing only the coil access panel from 

the unit, the filter access panel 

must

 be removed first. 

Failure to do so will result in panel damage. 

6.4 Humid Environment Installations

NOTE: Each service kit mentioned in this instruction 

is available through your local distributor. The kits are 

not supplied with the air handler and must be used 

to assist with condensation management in humid 

environment applications. The individual installation 

instructions provided with each kit must be followed.

6.4.1 ALL INSTALLATIONS – HUMID ENVIRONMENTS

Installations in areas where the return air environment 

sees humidity levels above 65% relative humidity, a High 

Humidity Kit (HHK) must be used. See Table 2 for Model 

and Kit assignment.

HHK0004

HHK0005

HHK0006

HHK0007

HHK0008

AMST24B

AMST30B

AMST36B

AMST36C

AMST42C

AMST48C

AMST48C AMST48D AMST60D

Table 2

6.4.1.2 Downflow Installations – Humid 

Environments

To prevent the coil pan “sweating”, the mandatory 

Downflow Kit (DFK) must also be used in addition to the 

High Humidity Kit (HHK). See Table 3 for the correct DFK 

for each model. 

DFKE-02

DFKE-03

AMST24B

AMST30B

AMST36B

AMST36C

AMST42C

AMST48C

AMST48D

AMST60D

Table 3

6.4.1.3 Horizontal Installations – Humid 

Environments

In addition to the High Humidity Kit (HHK), in applications 

where the air handler is installed in the horizontal position 

(Left or Right), and the return air environment sees 

humidity levels above 65% relative humidity, a Condensate 

Management Kit (CMK) must be used for field application. 

Applicable Kit and Model listing can be found in Table 4.

CMK0018 CMK0019 CMK0020

AMST24B

AMST36C

AMST30B

AMST36B

AMST42C

AMST48C

AMST48D

AMST60D

Table 4

UPFLOW

     

DOWNFLOW

 

Figure 3  

 

           Figure 4

Содержание AMST U1400 Series

Страница 1: ...ice Inspection 12 12 2 Wire Sizing 12 12 3 Maximum Overcurrent Protection MOP 12 12 4 Electrical Connections Supply Voltage 13 12 4 1 Air Handler Only Non Heat Kit Models 13 12 4 2 Air Handler Non Cir...

Страница 2: ...d the danger of CO poisoning which can occur if a carbon monoxide producing device con nues to operate in the enclosed area Carbon monoxide emissions can be re circulated throughout the structure if t...

Страница 3: ...Shipping Material Removal IMPORTANT All Shipping Material used to protect the equipment and the equipment s components during transit should be removed before final installation 2 3 1 Blower Support...

Страница 4: ...stall units such that a positive slope in condensate line 1 4 per foot is allowed 5 5 Horizontal Applications If installed above a finished living space a secondary drain pan as required by many build...

Страница 5: ...LUG KIT Table 1 SIDE DRAIN PAN DPK1 DRAIN PLUG COIL ACCESS PANEL MAIN DRAIN PAN Drain Pan Figure 1 1 Side Drain Pan Removal Figure 2 6 2 Horizontal Left Installation Figure 5 No field modifications ar...

Страница 6: ...available through your local distributor The kits are not supplied with the air handler and must be used to assist with condensation management in humid environment applications The individual instal...

Страница 7: ...ssemblies NOTE The use of a heat shield is strongly recommended when brazing to avoid burning the serial plate or the finish of the unit Heat trap or wet rags must be used to protect heat sensitive co...

Страница 8: ...ng Panel Internal Part Terminology Figure 7 External Part Terminology Figure 8 Coil Installation For Downflow Figure 9 Access Panel Configuration for Downflow or Horizontal Right Figure 10 Important N...

Страница 9: ...d superheat of 8 F 1 F If subcooling and superheat are low adjust TXV to 8 F 1 F superheat then check subcooling a If subcooling is low and superheat is high add charge to raise subcooling to 8 F 1 F...

Страница 10: ...ttention CAUTION If secondary drain is not installed the secondary access must be plugged Insulate drain lines located inside the building or above a finished living space to prevent sweating Install...

Страница 11: ...dimension must be less than 23 x20 filter can be installed on a B C and D cabinet respectively the cabinet size is the seventh letter of the model number 11 Electric Heat Refer to the installation man...

Страница 12: ...In Canada electrical grounding is to be in accordance with the Canadian Electric Code CSA C22 1 12 1 Building Electrical Service Inspection This unit is designed for single phase electrical supply onl...

Страница 13: ...C approved strain relief is to be used at this entry point Some codes municipalities require the supply wire to be enclosed in conduit Consult your local codes Side of Cabinet Top of Cabinet KNOCK OUT...

Страница 14: ...tdoor section is single stage or two stage The 24V control voltage connects the air handler to the room thermostat and condenser Low voltage wiring must be copper conductors A minimum of 18AWG must be...

Страница 15: ...BK T1 T3 Tap 8 BK PU BK T1 T4 Tap 9 BK PU BK T1 T5 Table 13 Speed Taps 6 9 Wiring Figure 14 12 6 3 AMST60DU1400 ONLY For high static applications no speed tap or airflow modifications should be made f...

Страница 16: ...tened All panels must be in place and secured For Air Tight application gasket must be positioned at prescribed locations to achieve 1 4 leakage Tubing must be leak free Condensate line must be trappe...

Страница 17: ...95 625 615 515 T9 995 970 925 910 860 850 800 790 730 T1 750 725 670 655 585 570 465 455 360 T2 920 895 845 830 780 770 710 700 615 T3 985 960 915 900 850 840 785 775 710 T4 1185 1165 1125 1115 1070 1...

Страница 18: ...T2 1580 1550 1490 1470 1400 1390 1315 1305 1230 T3 1635 1610 1560 1545 1480 1470 1400 1390 1315 T4 1851 1810 1768 1733 1704 1662 1613 1486 1358 T5 1820 1795 1750 1735 1680 1670 1605 1595 1525 T6 1465...

Страница 19: ...the connections between room thermostat and the air handlers and the connections between the air handlers and the Condensing Unit or Heat Pump with optional connections to Outdoor Thermostats For eac...

Страница 20: ...UNIT 24V CONNECTION BL YL YL WH GR RD 18 GA 4 WIRES WITH COOLING 3 WIRES WITHOUT AIR HANDLER Y G W W2 R COOLING UNIT WITH OPTIONAL HEAT KITS OF 15 kW AND ABOVE AND ROOM THERMOSTAT WITH TWO STAGES OF H...

Страница 21: ...EMOVE WIRE WHEN USING OUTDOOR THERMOSTAT NOMENCLATURE OT OUTDOOR THERMOSTAT OPTIONAL EHR EMERGENCY HEAT RELAY OPTIONAL COLOR CODES RD RED YL YELLOW BL BLUE BR BROWN OR ORANGE WH WHITE G C R HEAT PUMP...

Страница 22: ...PLUG CONNECTOR TRANSFORMER HIGH VOLTAGE LOW VOLTAGE HIGH VOLTAGE LOW VOLTAGE PLF 2 COLOR CODE TR 6 5 PLM 4 4 24V 5 1 2 3 EM WIRING CODE 208 240 VOLTS 1 1 PLF PLM L1 PLM 2 L2 IF REPLACEMENT OF THE ORI...

Страница 23: ...AGE HIGH VOLTAGE LOW VOLTAGE PLF 2 COLOR CODE TR 6 5 PLM 4 4 24V 5 1 2 3 EM WIRING CODE 208 240 VOLTS 1 1 PLF PLM L1 PLM 2 L2 IF REPLACEMENT OF THE ORIGINAL WIRES SUPPLIED WITH THIS ASSEMBLY IS NECESS...

Страница 24: ...am on the unit for the most up to date wiring 3 Phase Heat Kit 18 Wiring Diagrams HIGH VOLTAGE DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILU...

Страница 25: ...icals can cause premature aluminum evaporator coil failure Any cleaners that contain corrosive chemicals including but not limited to chlorine and hydroxides should not be used An alternate cleaning m...

Страница 26: ...WB F DB F WB F Heating Supply Air Temperature DB F Temperature Rise DB F Delta T Difference between Supply and Return Temperatures DB F AirHandler Coil InverterMatched INVERTERAH COILONLY Check EEV an...

Страница 27: ...27 THIS PAGE IS INTENTIONALLY LEFT BLANK...

Страница 28: ...REGISTRATION Thank you for your recent purchase Though not required to get the protection of the standard warranty registering your product is a relatively short process and entitles you to additional...

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