Laars MagnaTherm HTD Series Installation And Operation Instructions Manual page 3

HTD
Section 8 (continued)
8.C.5 Anti-Short Cycle ................................ 68
8.C.6 Time & Date ...................................... 68
8.D Configuration ..............................69
8.D.1 CH (Central Heat) ............................... 70
8.D.1.a CH1 (Central Heat, One) .................... 70
8.D.1.a.3 PID Parameters ................................ 71
8.D.1.b CH2 (Central Heat, Two) .................... 71
8.D.2 DHW (Domestic Hot Water) .............. 71
8.D.3 Outdoor Reset ................................... 72
8.D.4 Cascade (Lead / Lag) .................. 73-77
8.D.4.a Cascade CH (Central Heat) .............. 78
8.D.4.a.1 Cascade CH Lead Settings ................ 79
8.D.4.a.1.A Cascade Base / Drop Load............. 80
8.D.4.b Cascade DHW (Dom Hot Water) ....... 80
8.D.4.c Cascade Rotation .............................. 81
8.D.4.c.1 Cascade Rotation Setup ................... 81
8.D.4.d Cascade Redundancy ........................ 82
8.D.5 Hybrid ................................................. 82
8.D.6 Pumps ................................................ 83
8.D.6.a DHW Recirculation ............................. 84
8.D.6.b VARI-PRIME ....................................... 84
8.D.7 Manual Firing Rate ............................ 85
8.D.8 Temp Limits ....................................... 85
8.D.8.a Delta T Parameters ............................ 86
8.D.8.b Flue Limitation Parameters ................ 86
8.D.8.c Outlet Limitation Parameters .............. 86
8.D.9 External ............................................. 87
8.D.9.a External - Remote Set Point .............. 88
8.D.9.b External Firing Rate............................ 89
8.D.10 Time & Date ...................................... 89
8.D.11 Miscellaneous Features
8.D.11.a Demand Priority ................................ 91
8.D.11.b Anti-Short Cycle ................................. 91
8.D.11.c Warm Weather ................................... 92
8.D.11.d COM Port, BMS ................................. 93
8.D.11.e Temperature Conversion ................... 94
8.D.11.f Anti-Frost ........................................... 94
8.D.11.g Trim (O 2 Trim Enable / Disable) ....... 95
8.D.12 Login .................................................. 95
8.E Service Screens ..........................96
8.E.1 Burner................................................. 96
8.E.2 Digital I/O ( Input / Output ) ............... 97
8.E.3 Analog I/O .......................................... 98
8.E.4 Screen Settings Timeout .................... 99
8.E.5 History ................................................ 99
8.E.6 Restart Touchscreen & Recalibrate .... 99
8.E.7 Factory Reset ................................... 100
8.E.8
8.E.9
8.E.10
8.E.11
8.E.12
8.E.13
8.F
8.F.1
8.F.2
8.G
SECTION 9 Parameter Tables ...............103
SECTION 10 Initial startup Instructions
10.A
10.B
10.B.1
10.B.2
10.C
10.D
10.E
10.F
SECTION 11 Maintenance
11.A
11.B
11.B.1
11.B.2
11.B.3
11.B.4
.................. 90
11.B.5
11.B.6
11.B.7
11.B.8
11.B.9
11.B.10
11.B.11
11.B.12
SECTION 12 Troubleshooting
12.A
12.B
SECTION 13 Replacement Parts
13.A
13.B
ii
HMI Model OEM only. ..................... 100
BIC Model OEM only ....................... 100
Both Model. OEM only. ................... 100
About About the Firmware version. 100
O2 (Trim Set Point) .......................... 100
LMV .................................................. 100
Messages and USB ........................ 101
Messages ......................................... 101
USB Functionality ............................. 101
Active Demands ............................. 102
Filling the Boiler System ................... 109
Initial Operation ................................ 110
Initial Burner Operation .................... 110
Combustion Setup Procedure
Hi Fire, Low Fire ................................111
Shutting Down the Unit..................... 113
Restarting the Unit............................ 113
Controllers ........................................ 113
Transmitters ..................................... 114
System Maintenance ....................... 115
Maintenance Notes .......................... 115
Burner............................................... 115
Gas Train Components .................... 115
Controller .......................................... 116
Spark Ignition Electrodes ................. 116
Flame Sensor ................................... 116
Blower Model 1600........................... 116
Blower Model 2000-4000 ................. 116
Heat Exchanger Tubes ..................... 117
Gas Pressure Switches .................... 117
Pressure Transmitters ...................... 118
Oxygen Sensor................................. 118
High Temperature Limits (optional) .. 118
Lockouts and Errors ........................ 119
LMV Errors ....................................... 121
General Information.......................... 126
Component Illustrations, Parts Lists,
and Part Numbers ................... 126 - 140