Instruction manual
Page 5
SECTION I: SPECIFICATIONS (cont.)
HL30SK 30 1.38 110 85 25 55,000 1.3 2.0
HL40SK 38 2.30 153 120 33 77,000 1.1 3.0
HL50SK 45 2.30 160 120 40 77,000 1.0 3.0
HL80SK 75 2.76 200 130 70 83,000 0.9 5.0
HL119SK 110 2.76 232 130 102 83,000 1.2 5.0
Model
Actual Tank
Volume (gal)
Coil Volume
(gal)
First Hour
Rating (gal)*
Continuous Draw
Rating (GPH)*
First Draw
Rating (gal)*
Minimum Coil
Output (BTU/Hr)**
Standby Loss
Rating (°F/hr)
Heat Source Friction
Loss (ft. w.c.)
T
able 2: 
C
apacity & Performance
Capacities
Performance
HL30SK
107 @ 53,000  114 @ 57,000  117 @ 59,000  129 @ 67,000  132 @ 69,000  136 @ 71,000  139 @ 73,000 
HL40SK
141 @ 69,000  165 @ 84,000  177 @ 92,000  171 @ 88,000  183 @ 96,000 195 @ 104,000 207 @ 111,000
HL50SK
148 @ 69,000  172 @ 84,000  184 @ 92,000  178 @ 88,000  190 @ 96,000 202 @ 104,000 214 @ 111,000
HL80SK
188 @ 76,000  212 @ 91,000  224 @ 98,000  221 @ 97,000 233 @ 104,000 245 @ 112,000 257 @ 119,000
HL119SK
220 @ 76,000  244 @ 91,000  256 @ 98,000  253 @ 97,000 265 @ 104,000 277 @ 112,000 289 @ 119,000
Model
180°F
6 GPM*
180°F
10 GPM*
200°F
6 GPM*
200
°F
10 GPM*
FIRST HOUR RATING (gal) @ Coil Output (Btu/hr)
Table 3: Performance (cont.)
NOTES: 
* Based on 77°F rise with 58°F potable water inlet temperature at 8 GPM heat source flow rate. Heat source temperature was 180°F.
** Minimum Coil output based on continuous boiler operation over 30 minutes. See Section III for additional considerations.
All data obtained through testing in accordance with GAMA INDIRECT-FIRED WATER HEATER TESTING STANDARD IWH-TS-1_MARCH 2003
200°F
12 GPM*
200°F
8 GPM*
180°F
12 GPM*
NOTES: 
First Hour Rating = First Draw + Continuous Draw
* Coil Input (temperatur
e, flow rate). Ratings based on 77°F rise with 58°F inlet potable water.
All data obtained through testing in accordance with GAMA INDIRECT
-FIRED W
A
TER HEATER TESTING STANDARD IWH-TS-1_MARCH 2003










