6
LEGEND NOTES:
1. Ratings are in accordance with and certified to ARI/ISO Standard
13256-1.
2. Cooling capacities based upon 80.6 F db, 66.2 F wb entering air
temperature.
3. Heating capacities based upon 68 F db, 59 F wb entering air tem-
perature.
4. All airflow is rated on high speed. Units factory-shipped on medium
and low motor taps.
5. All ratings based upon operation at lower voltage of dual voltage
rated models.
Physical data
LEGEND
50PEC
UNIT
SIZE
WATER LOOP HEAT PUMP GROUND WATER HEAT PUMP GROUND LOOP HEAT PUMP
Cooling 86 F Heating 68 F Cooling 59 F Heating 50 F Cooling 77 F Heating 32 F
Capacity
(Btuh)
EER
(Btuh/W)
Capacity
(Btuh)
COP
Capacity
(Btuh)
EER
(Btuh/W)
Capacity
(Btuh)
COP
Capacity
(Btuh)
EER
(Btuh/W)
Capacity
(Btuh)
COP
09 8,600 13.3 11,400 4.6 9,200 18.6 9,500 4.0 8,800 14.9 7,300 3.3
12 11,300 13.3 14,900 4.9 12,500 18.7 12,100 4.1 11,800 15.1 9,300 3.7
15 14,100 13.5 18,200 5.1 16,600 21.3 14,800 4.3 15,100 15.8 11,400 3.5
18 16,200 13.0 20,100 4.5 17,600 19.5 16,500 4.0 16,500 15.0 13,200 3.4
COP — Coefficient of Performance
db — Dry Bulb Temperature
EER — Energy Efficiency Ratio
wb — Wet Bulb Temperature
BASE UNIT 50PEC 09 12 15 18
NOMINAL COOLING CAPACITY (Btuh)
9,300 12,300 13,800 16,000
COMPRESSOR
Rotary
BLOWER
Motor Horsepower
Wheel Size D x W (in.) 2 each
1
/
20
5
1
/
4
x 6
1
/
4
1
/
12
5
1
/
4
x 6
1
/
4
1
/
8
5
1
/
4
x 6
1
/
4
1
/
8
5
1
/
4
x 6
1
/
4
FILTER SIZE (in.) Bottom Return (Qty)
10 x 30 x 1 (1) 10 x 30 x 1 (1) 10 x 30 x 1 (1) 10 x 36 x 1(1)
FILTER SIZE (in.) Front Return (Qty)
7 x 29
1
/
2
x
1
/
8
(1) 7 x 29
1
/
2
x
1
/
8
(1) 7 x 29
1
/
2
x
1
/
8
(1) 7 x 35
1
/
2
x
1
/
8
(1)
UNIT WEIGHT (lb)
Shipping
Operating
185
175
190
180
200
190
232
220
REF. TO AIR HEAT EXCHANGER
Face Area (sq ft)
No. of Rows Deep
Copper Tube Size OD (in.)
Fin Spacing (FPI)
1.4
2
3
/
8
13
1.4
3
3
/
8
13
1.8
3
3
/
8
13
1.8
3
3
/
8
12
REFRIG. CHARGE (R-410A)/CKT (oz)
No. of Circuits
28
1
29
1
37
1
39
1
UNIT CABINET WITH BOTTOM RETURN WITH STANDARD
5 in. SUBBASE Width x Height x Depth (in.) 48 x 26 x 12 48 x 26 x 12 48 x 26 x 12 54 x 26 x 12
UNIT CABINET WITH FRONT RETURN
(NO SUBBASE) Width x Height x Depth (in.) 48 x 21 x 12 48 x 21 x 12 48 x 21 x 12 54 x 21 x 12
WATER IN/OUT SIZE OD SWEAT (in.)
1
/
2
1
/
2
1
/
2
3
/
4
CONDENSATE SIZE ID VINYL (in.)
5
/
8
5
/
8
5
/
8
5
/
8
FPI — Fins Per Inch
ARI/ISO capacity ratings
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