Thermal Solutions APEX APX425C User Manual

114
106308-05 - 3/23
APEX Installation, Operating, & Service Instructions
PUMP STATUS
Modbus
Register
Protocol
Name
Description
Read (R) /
Write (W)
400096 CH pump status See Table 10-27. R
400100 DHW pump status See Table 10-27. R
400108 Boiler pump status See Table 10-27. R
400128 - 400129 Burner cycle count 0-999,999 (U32) R/W
400130 - 400131 Burner run time Hours (U32) R/W
400132 - 400133 System pump cycle count 0-999,999 (U32) R/W
400134 - 400135 DHW pump cycle count 0-999,999 (U32) R/W
400138 - 400139 Boiler pump cycle count 0-999,999 (U32) R/W
Table 10-26: Modbus Register List (continued)
Table 10-27: Pump Status Codes
Status Description
92 Forced On from manual pump control
93 Forced On due to Outlet high limit is active
94 Forced On from burner demand
95 Forced On due to Lead Lag slave has demand
96 Forced Off from local DHW priority service
97 Forced Off from Lead Lag DHW priority service
98
Forced Off from Central Heat anti-
condensation
99 Forced Off from DHW anti-condensation
100 Forced Off due to DHW high limit is active
101
Forced Off from EnviraCOM DHW priority
service
102 On due to local CH frost protection is active
103
On due to Lead Lag CH frost protection is
active
104 On due to local DHW frost protection is active
105
On due to Lead Lag DHW frost protection is
active
106 On from local Central Heat demand
107 On from Lead Lag Central Heat demand
108 On from local DHW demand
109 On from Lead Lag DHW demand
Status Description
110 On from local Mix demand
111 On from Lead Lag Mix demand
112 On from local Central Heat service
113 On from Lead Lag Central Heat service
114 On from local DHW service
115 On from Lead Lag DHW service
116 On from local Mix service
117 On from Lead Lag Mix service
118 On from Lead Lag auxiliary pump X
119 On from Lead Lag auxiliary pump Y
120 On from Lead Lag auxiliary pump Z
121 On, but inhibited by pump start delay
122 On from pump override
123 Off, not needed
124 On from burner demand
125 On from exercise
126 On from local Lead Lag service
127 On from local Lead Lag pump demand
10 Operation (continued)

Thermal Solutions APEX APX425C Specifications

General

Brand	Thermal Solutions
Model	APEX APX425C
Category	Boiler
Language	English