8
LP- 428 REV. 9.2.14
To avoid severe burns, allow boiler to cool before servicing.
E. BOILER OPERATION
Do not block flow of combustion or ventilation air to boiler.
Should overheating occur or gas supply fail to shut off, do not turn off or disconnect electrical supply to circulator. Instead, shut
off the gas supply at a location external to the appliance.
Do not use this boiler if any part has been under water. Immediately
call a qualified service technician to inspect the boiler and replace
any part of the control system and any gas control that has been
under water.
F. BOILER WATER
Do not use petroleum-based cleaning or sealing compounds in a
boiler system. These products may damage gaskets and seals in the
system. This can result in substantial property damage.
Do not use “homemade cures” or “boiler patent medicines”.
Substantial property damage, damage to boiler, and/or serious
personal injury may result.
Continual fresh make-up water will reduce boiler life. Mineral buildup
reduces heat transfer, overheats the stainless steel heat exchanger,
and causes failure. Addition of oxygen by make-up water can cause
internal corrosion in system components. Leaks in the boiler or
piping must be repaired at once.
If you have an old system with cast iron radiators, thoroughly flush
the system (without boiler connected) to remove sediment. The high-
efficiency heat exchanger can be damaged by build-up or corrosion
due to sediment.
G. FREEZE PROTECTION
NEVER
use any toxic chemical, including automotive, standard glycol antifreeze, or ethylene glycol made for hydronic (non-potable)
systems. These chemicals can attack gaskets and seals in water boilers, are poisonous if consumed, and can cause injury or death.
Consider piping and installation when determining boiler location
.
NOTE:
Damages resulting from incorrect installation or from use of products not approved by HTP, Inc. ARE NOT covered by warranty.
PART 2 – BEFORE YOU START
A
. WHAT’S IN THE BOX
Also included with the boiler:
Pressure and Temperature Gauge
Outdoor Sensor
Installation Manual
Warranty
CSD-1 Form
H-3 Data Sheet
B. HOW BOILER OPERATES
Mod Con boilers are designed to meet the needs of the most challenging new and retrofit installations. Mod Con 1000 and 1700 models
incorporate two individual heating systems that are piped, wired, and programmed to work as one, providing built-in system redundancy
and maximum turndown and efficiency. Outlined below are features of the system and how each operates.
Stainless Steel Heat Exchanger
- The highly efficient stainless steel heat exchanger is designed to use the cold return water from the
system and extract the last bit of heat before it is exhausted.
Modulating Combustion System
- The combustion system will modulate the output of the burner during operation to match the
system demand and achieve the control set point while in operation. The set point can change by internal or external signals which
enhance the overall performance of the system.
Summary of Contents for MODCON1000
Page 40: ...40 LP 428 REV 9 2 14 E GAS VALVE Figure 22 Mod Con 1000 Gas Valve ...
Page 46: ...46 LP 428 REV 9 2 14 Figure 25 Figure 26 Cascade Resistor Plug Installation Detail ...
Page 47: ...47 LP 428 REV 9 2 14 Figure 27 Mod Con Cascade Master and Follower Wiring ...
Page 48: ...48 LP 428 REV 9 2 14 Figure 28 Mod Con Internal Connection Diagram LP 428 K ...
Page 70: ...70 LP 428 REV 9 2 14 Figure 31 MOD CON 1000 External Parts Blowout ...
Page 71: ...71 LP 428 REV 9 2 14 Figure 32 MOD CON 1700 External Parts Blowout ...
Page 72: ...72 LP 428 REV 9 2 14 Figure 33 ...
Page 73: ...73 LP 428 REV 9 2 14 Figure 34 LP 445 S ...
Page 74: ...74 LP 428 REV 9 2 14 Figure 35 LP 428 V ...
Page 75: ...75 LP 428 REV 9 2 14 Figure 36 ...
Page 78: ...78 LP 428 REV 9 2 14 ...
Page 79: ...79 LP 428 REV 9 2 14 ...