Instructions / Assembly

G A S B O I L E R C O N T R O L S
4
For atmospheric and induced draft boilers
Specifications HydroStat-IC
Line voltage input 120 VAC, 50/60 HZ
Low voltage input 24 VAC, 40 VA
Inducer (4200i) 6 FLA, 18 LRA @ 120 VAC
Vent damper (4200a) 0.5 A @ 24 VAC
Circulator contacts 5.8 FLA, 34.8 LRA @ 120 VAC
Operating range - low limit Off or 110°F (43°C) - 200°F (93°C)
Operating range - high limit 100°F (38°C) - 220°F (104°C)
Five Function Control
• Ignition –
Direct Spark Ignition with
single rod flame sensing
• Temperature Limit Control
–
Designed for cold start and tankless
coil boilers
• Low Water Cut-Off
– Provides pro-
tection against potentially dangerous
low water conditions when installed
with the Hydrolevel Electro-Well
• Fuel Saving Boiler Reset
– Achieved
by Thermal Targeting or optional
Outdoor Reset capabilities
• Two Zone
– Circulator outputs for
DHW or second heating zone
Low Temperature
Limit Setting
(OFF or 110°-220°F)
Factory: OFF
High Temperature
Limit Setting
(100°-220°F)
Factory: 190°F
Spade Connectors
for OS-100 Outdoor
Sensor Kit
Diagnostic LEDs


Economy Dial
(OFF or LO, 1, 2, 3,
4, 5, HI)
Factory: 1
Indicator Light
(indicates heat call)
Jumper

Test/Settings Button

Dynamic
Display
Water Temperature
and Real Time
Verification of Setting
Adjustments.
Vent Damper
Receptacle*
Draft Inducer
Receptacle*
Differentials are automatic
and will vary based on
control settings and boiler
temperature.
Note: The high limit differential
can be adjusted when the econ-
omy feature is turned off.
*Model specific
MODEL VOLTAGE DESCRIPTION/OPERATION
4200A 24 VAC
4200i 24 VAC
Multi-function control for gas boilers (4200A - Atmospheric / 4200i - Forced Draft).
Provides direct spark ignition, temperature limit control, low water-cut off, fuel
saving boiler reset and circular outputs for DHW or second heating zone.
Hydrolevel Catalog 2018 Page 4