Raypak 241275 Operations Instructions

This manual should be maintained in legible condition and kept adjacent to the heater or in another safe placefor future reference.Catalog No: 1000.5

10COLD WATER RUNPurposeThe Cold Water Run system utilizes a variable-speedpump to inject the proper amount of water from themain system loop into the

11Injection & Heater Pump Comparison — Hi DeltaHeater Pump Injection PumpHeaterModelFlow Temp. Rise Press. Drop Flow Temp. RiseInjectionPumpHeater

12Fig. 13: Remove the pump bodyFig. 14: Be sure not to damage the seal when removingor replacing the pump bodyInjection Pump CoverInstallationBefore S

133. Insert and tighten all eight (8) wrench bolts, secur-ing the pump body in place.4. You will now be able to install the pump cover. SeeFig. 18 an

14Typical Boiler Piping (Hi Delta shown)

15START-UP PROCEDURE• Run full system flow for two minutes.• Initiate PID pump control to achieve target inlettemperature by slowing injector pump.• B

16Wiring Diagram

17Cold Water Run Troubleshooting GuideStep 9 Step 8 Step 10 Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Is there a Call For Heat at the heater? I

18ILLUSTRATED PARTS LISTSCold Water Start

191-M4-M2-M3-MCALL OUT DESCRIPTION HI DELTA MVBF717110F717110LORTNOC-YSSA DRAOB CPC-1F817110F817110REMROFSNARTC-23-C POWER SUPPLY 120VAC/12VDC 011719F

2

20Cold Water Run

21CALL OUTBVMATLED IHNOITPIRCSEDF717110F717110LORTNOC-YSSA DRAOB CPC-1F027110F027110CAV42 TDPD-YALERC-2F930900F930900CAV42 TDPS-YALERC-3F538110F538110

www.raypak.com Raypak, Inc., 2151 Eastman Avenue, Oxnard, CA 93030 (805) 278-5300 Fax (805) 278-5468Raypak Canada Limited, 2805 Slough St., Mississaug

GENERAL SAFETYTo meet commercial hot water use needs, the highlimit safety control on this water heater is adjustable upto 210°F. However, water tempe

4COLD WATER STARTBefore arriving at the job site to begin the installation,it's important to first inspect the system and determinewhat materials

5Connecting Power to theControllerSupply power from the 120 VAC power input from theheater to the controller power inputs Terminal Block(TB1). This is

6Cold Start Sequence ofOperation1) 120VAC to heater sends 120VAC to Cold Startcontrol on terminal block 1.2) 120/24VAC transformer and 120VAC-12VDC co

7NOTE: Elodrive actuator is Nema 4 rated.TROUBLESHOOTINGCheck your power source using a Volt-Ohm meter;check the following voltages at TB1 terminal bl

8Cold Water Start Troubleshooting Guide

9Wiring Diagram