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Table 1 – Physical Data -- Unit 677C ----A
UNIT SIZE 24040 24060 30040 30060 36060 36090 42060 42090
NOMINAL CAPACITY ---ton 2 2 2 --- 1/2 2--- 1/2 3 3 3 --- 1/2 3 --- 1/2
SHIPPING WEIGHT ---lb.
(kg)
368
167
368
167
378
171
378
171
450
204
450
204
491
223
491
223
COMPRESSORS Scrol l
Quantity 1
REFRIGE RANT (R---410A)
Quantity ---lb
(kg)
9.5
4.3
9.5
4.3
10.5
4.8
10.5
4.8
9.0
4.1
9.0
4.1
14.0
6.4
14.0
6.4
REFRIGERANT METERING
DEVICE
Indoor---TXV, Outdoor---Accurater
OUTDOOR ORIFICE
in. (qty)
(mm)
0.032 (2)
.81
0.032 (2)
.81
0.038 (2)
.97
0.038 (2)
.97
0.040 (2)
1.02
0.040 (2)
1.02
0.038 (Left OD Coil)
0.040 (Right OD Coil)
.97/1.02
OUTDOOR C OIL
Rows...Fins/in.
Fac e Area --- sq f t
2...21
13.6
2...21
13.6
2...21
15.4
2...21
15.4
2...21
13.6
2...21
13.6
2...21
19.4
2...21
19.4
OUTDOOR FAN
Nominal Cfm
Diameter---in.
(mm)
Motor Hp (Rpm)
2500
22
559
1/8 (825)
2500
22
559
1/8 (825)
2600
22
559
1/8 (825)
2600
22
559
1/8 (825)
3000
22
559
1/4 (1100)
3000
22
559
1/4 (1100)
3500
22
559
1/8 (825)
3500
22
559
1/8 (825)
INDOOR COIL
Rows...Fins/in.
Fac e Area --- sq f t
3...17
3.7
3...17
3.7
3...17
3.7
3...17
3.7
3...17
4.7
3...17
4.7
3...17
4.7
3...17
4.7
INDOOR B LOWER
Nominal Cooling Airflow---(CFM)
Size --- in.
(mm)
Motor --- hp
800
10x10
254x254
1/2
800
10x10
254x254
1/2
1000
10x10
254x254
1/2
1000
10x10
254x254
1/2
1200
11x10
279x254
3/4
1200
11x10
279x254
3/4
1400
11x10
279x254
3/4
1400
11x10
279x254
3/4
FURNACE S ECTION*
Burner Orifice
Natural Gas Qty...Drill Size
Propane GasQty...Drill Size
2...44
2...55
2...38
2...53
2...44
2...55
2...44
2...53
2...38
2...53
3...38
3...53
2...38
2...53
3...38
3...53
HIGH---PRESSURE SWITCH
(ps ig) Cut --- out
Reset (Auto)
650 +/---15
420 +/---25
LOSS --- OF --- CHA RGE /
LOW---PRESSURE SWITCH
(Liq uid Line) (p sig)
Cut --- out
Reset ( auto)
20 +/ --- 5
45 +/---10
RETURN---AIR FILTERS † }
Throwaway (in.)
(mm)
20x20x1
508x508x25
20x24x1
508x610x25
24x30x1
610x762x25
*Based on altitude of 0 to 2000 ft (0---610 m).
{Required filter sizesshown a re based on the lar ger of the ARI (Air Conditioning and Refrigeration Institute) rated cool i ng airflow or the heating airflow velocity of
300 ft/minute for high---capacity type. Air filter pr essure dro p for non---standard filters must not exceed 0.08 IN. W.C.
} If using accessory filter rack refer to filter rack installation instructions for correct filter size and quantity.
Horizontal Duct Covers
A09076
Basepan
Downflow
(Vertical)
Supply
Knockout
Basepan
Downflow
(Vertical)
Return
Knockout
A09077
Fig. 8 -- Supply and Return Duct Opening
1
2
2
1
3
3
4
4
1. Score groove in corner 1 in both directions as far as you can reach.
2. Starting in corner 1, tap-out all sides with a small hammer. Be careful
not to damage any other part of unit.
3. If side from corner 3 to 4 is not accessible due to heat exchanger,
pivot panel up and down by hand until remaining side breaks off.
INSTRUCTIONS FOR REMOVING DOWNSHOT PANELS
A09054
Fig. 9 -- Vertical (Downflow) Discharge Duct Knockouts
677C-- --A