Burnham RTC (Return Temperature Control) 安装指导
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Installation & Maintenance Manual
RTC/Return Temperature Control
P/N 81460382
of 60
The Burnham Return Temperature Control (RTC) is designed to operate a 3-way or a 4-way valve to protect the boiler against flue
gas condensation and thermal shock. The RTC can also optionally control the supply water temperature to the system based on a
setpoint temperature or an outdoor reset strategy. A boiler post purge is provided by keeping the boiler recirculating pump running
after the call for heat is removed.
Additional functions include:
• Counts boiler run time
• Counts the number of boiler cycles
• Counts boiler cold shocks
• Counts the number of boiler cycles
• Counts boiler cold shocks
• Warns of cold boiler return temperatures
• Test sequence to ensure proper operation
• CSA C US certified
• Test sequence to ensure proper operation
• CSA C US certified
Input
Heat
Demand
Signal
Output
Boiler
Circulator
Input
Well Sensor
Included
Input
Universal Sensor
Optional
Input
Outdoor
Sensor
Optional
Output
Boiler
Input
120 V (ac)
Power
Supply
Do not apply power
Signal wiring must be
rated at least 300 V.
Made in Canada 912-06
L
N Pmp N
Ret
Boil
Boil
Com
Mix
R
R
N
Com Out
1
3
5
9 10 11
2
4
6
7 8
12 13 14 15 16
Heat
Power
Demand
Boiler
Enable
Item
Test
Monitor
Demand
Power:
120 V ±10% 50/60 Hz 1300 VA
Floating Output:
24 V (ac) 0.34 A 8 VA
Relays:
240 V (ac) 10 A 1/3 hp, pilot duty 240 VA
Demand:
20 to 260 V (ac) 2 VA
H6026A
RTC/Return Temperature Control
Open
Delay
Close
24 Volt Output
Use supply wires
suitable for 120˚F
(50˚C) above ambient
158033
Output
Mixing Valve &
Actuating Motor