Technical data

© MHG Heating Ltd
58
MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR
Telephone [phone] Fax [phone] Email [e-mail]
Web www.mhgheating.co.uk
010109
[#]
Description Range Defaults
123 HWS Control in Cascade System
0. Controlled Via Master RVA47 Manager
1. Controlled Via All RVA47 Managers in Segment
2. Controlled Via All RVA47 Managers In LPB System
0-2 2
124 HWS Charging Cycles Per 24 Hour Period
0. One Per Day with 2.5 Hour Forward Shift from Heating Time
Switch Setting
1. Several Per Day with 1 Hour Forwarding Shifting from Heating
Time Switch Setting
0-1 1
125 HWS Temperature Control
0. QAZ21 Sensor
1. Volt Free Enable via Thermostat
0-1 0
126 System Flow Temperature Boost When HWS Enabled 0-30 20
127 HWS Priority / Shifting
0. Absolute Priority
1. Shifting Priority. Heating Reduced to Increase HWS Recovery
2. No Priority. HWS and Heating Operate in parallel
3. Shifting / Absolute Heating Switched OFF, Mixing Circuit
Decreased (RVA46) to Increase HWS Recovery.
0-3 1
130 Hours Of Operation Prior to Sequence Rotation 10-990 100
131 Changeover Sequence Program
0. No Exemptions
1. The First Module is Exempt
2. The Last Module is Exempt
3. The First and Last Modules are Exempt
0-3 0
132 Module Designated as Fixed Lead Unit 00.1-16.3 ---
133 Cascade Enable Delay Time 1-120 2
134 Anti Cycling Time (Seconds) 0-1800 30
140 LPB Control Address
1. Master RVA47 Manager
2….16. Slave RVA47s Operating From Master RVA47 Manager
0-16 1
141 LPB Control Segment
0. Heat Generating Units (RVA47s)
1…14. Heat Consuming Units (RVA46s)
0-14 0
142 LPB Power Supply
0. Off
1. On
0-1 1
143 Operation of LPB Power Supply On/Off On
144 Display of LPB Communication On/Off On
145 Changeover Via LPB Connection
0. All Controllers in Same Segment
1. All Controllers in LPB System
0-1 1
146 Summer/Winter Changeover Via LPB
0. Local Control Only
1. Entire Control Via LPB
0-1 0