39
IOM Instructions
HKV LArge CommerCiAL
Heat Controller, Inc.
Table 7: Coax Water Pressure Drop
Unit Start Up Procedure
CXM Safety Control Reset
Lockout
- In Lockout mode, the Status LED will begin fast
flashing. The compressor relay is turned off immediately.
Lockout mode can be soft reset via the thermostat “Y”
input or can be hard reset via the disconnect. The last fault
causing the lockout will be stored in memory and can be
viewed by going into test mode.
Fault Retry
- In Fault Retry mode, the Status LED begins
slow flashing to signal that the control is trying to recover
from a fault input. The CXM control will stage off the
outputs and then “try again” to satisfy the thermostat "Y"
input call. Once the thermostat input calls are satisfied,
the control will continue on as if no fault occurred. If 3
consecutive faults occur without satisfying the thermostat
"Y" input call, then the control will go to Lockout mode. The
last fault causing the lockout will be stored in memory and
can be viewed by going into test mode.
Consult the CXM manual for complete descriptions.
Model
GPM
Pressure Drop
30°F
50°F
70°F
90°F
HKV084
10.5
15.75
21
2.4
5.5
9.2
2.0
4.6
7.9
1.2
3.4
6.2
1.1
3.0
5.7
HKV096
12
18
24
3.8
8.0
13.0
3.1
6.8
11.2
2.3
5.3
9.2
2.0
4.8
8.6
HKV120
15
22.5
30
2.1
5.3
9.4
1.7
4.4
8.1
1.2
3.5
6.7
1.0
3.2
6.2
HKV150
19
28
38
2.7
6.2
11.0
2.1
5.2
9.5
1.5
4.1
7.7
1.3
3.7
7.2
CAUTION!
CAUTION!
Do not restart units without inspection and
remedy of faulting condition. Equipment damage may occur.
HKV168
21
31.5
42
2.7
6.1
10.4
2.2
5.2
8.9
1.4
3.8
6.9
1.2
3.4
6.4
HKV092
24
36
48
4.2
9.0
14.6
3.5
7.6
12.6
2.6
6.0
10.3
2.3
5.5
9.6
HKV240
30
45
60
2.4
5.9
10.5
1.9
4.9
9.2
1.3
3.9
7.5
1.1
3.6
7.0
HKV300
38
56
76
3.1
7.0
12.4
2.4
5.9
10.7
1.7
4.6
8.7
1.5
4.2
8.1
