All installations and services must be performed by qualified personnel.
BLOWER AIR ADJUSTMENT
The ECM blower control must be set in order to
establish proper air movement. Use the following
steps to do this:
1. Identify to tonnage of the condensing unit that will
be used.
2. If Hydronic heat is to be used, identify your BTU
heat requirements, preferred supply air temperature,
water temperature and water flow through the coil in
gallons per minute.
3. Locate the blower control board mounted to the
front of the blower assembly.
4. Locate the red switch block labeled SW1 for
adjusting the Heating and Cooling blower speed.
5. Locate SW2, just below SW1, for adjusting Blower
delays.
Figure E
BLOWER COOLING SPEEDS
Refer Table C1 for setting switches 4, 5 & 6 for the A/C sizing.
Table C1 COOLING SWITCH SETTINGS
AH2436E1 COOL
Settings (SW1)
AH4260E1 COOL
Settings (SW1)
A/C
TONS
CFM
4 5 6 4 5 6
2
800 OFF
OFF OFF
2-1/2
1000
ON
OFF OFF
3
1200
OFF
ON
OFF
OFF
ON
OFF
3-1/2
1400
ON ON
OFF
4
1600
OFF
OFF
ON
1800
ON
OFF
ON
2000
OFF
ON
ON
5
2200
ON
ON
ON
Shaded cells represent the factory settings
BLOWER HEATING SPEEDS
In the next two pages:
1. Locate the page that refers to the Air Handler to be set up.
2. Find the line(s) on the chart that best represents the water temperature and gallons per minute available.
3. Find the point along the curve that best fits the BTU and Supply Air temperature desired.
4. Read the letter associated with that point and use it to find the switch settings in the table below the
chart.
(The table below the switch settings represent the actual numbers represented by the chart.)
6
Содержание AH2436E1
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