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EGH-105 to EGH-125 EGH-105 to EGH-125
EGH-105 to EGH-125 EGH-105 to EGH-125
EGH-105 to EGH-125 Control Supplement
Part Number 550-110-677/0299
2
The following terms are used throughout this Control Supplement to bring attention to the
presence of hazards of various risk levels or to important information concerning the life of the
product.
Indicates presence of hazards that will cause severe personal injury, death or
substantial property damage.
Indicates presence of hazards that can cause severe personal injury, death or
substantial property damage.
Indicates presence of hazards that will or can cause minor personal injury or
property damage.
Indicates special instructions on installation, operation or maintenance that
are important but not related to personal injury or property damage.
Hazard definitions
Please read this page first
Contents
I. ................. Installation ..........................................................................4
II. ................ Piping connections .............................................................6
III. ............... Install boiler controls .........................................................6
IV. ............... Optional heaters ................................................................7
V. ................ Gas piping ...........................................................................8
VI. .............. Wiring ..................................................................................8
VII. ............. Final adjustments.............................................................22
VIII. ............ Check-out procedure .......................................................24
IX. .............. Service and maintenance ................................................31
X. ............... Replacement parts ...........................................................32
This Control Supplement must only be used by a qualified installer/service
technician. Read these instructions completely before beginning the
installation. Failure to follow these instructions can cause severe personal
injury, death or substantial property damage.
This Control Supplement is for CSD-1 controls on EGH-105 to EGH-125
boilers only, specifically for:
• Water boilers without tankless heater. (CSD-1 is not available for
water boilers with tankless heater.)
• Steam boilers with or without tankless heater.
This document is only intended as a supplement to the EG, PEG and EGH
(Series 4) Boiler Manual
(referred to in this Supplement as the EGH Manual).
Follow all instructions in the EGH Manual in addition to the instructions in
this Control Supplement.
To the installer:
The installation must conform to the requirements of the authority having
jurisdiction, or, in the absence of such requirements, to the National Fuel Gas
Code, ANSI Z-223.1/NFPA-54 (latest edition). Where required by the authority
having jurisdiction the installation must conform to the American Society of
Mechanical Engineers (ASME) Safety Code for Controls and Safety Devices
for Automatically-Fired Boilers, Number CSD-1.