INSTALLATION GUIDE · USER MANUAL
GAS HEATER SERIES
20
APPENDIX A: RINNAI RL94i INSTALLATION MANUAL
CONTEXT: RINNAI WATER HEATING UNIT
The G&D sta�onary gas heater package (“G&D Heater”) contains a water hea�ng unit, model RL94i,
manufactured by Rinnai Corpora�on. The RL94i unit burns gas to produce heat, which is transferred to the
glycol/water mixture contained in the reservoir of the G&D Heater via an internal recircula�on pump. A
se
parate process pump sends the hot glycol mixture from the reservoir out to the process. The RL94i unit
has been preinstalled in the G&D Heater
skid, with al
l
wiring and plumbing completed at
G&D’S
factory:
G&D HEATERS: INDOOR INSTALLATIONS
G&D Heaters are designed for outdoor placement; however, loca�ng
a G&D Heater indoors is possible as
long as all of Rinnai's installa�on requirements are sa�sfied. Refer to the "VC Series Manual" for details.
RINNAI RL94i “VC SERIES MANUAL”
A copy of the RL94i installa�on instruc�ons, from Rinnai's "VC Series Manual," is provided on the following
pages. Although the water hea�ng unit comes pre
-
installed in the G&D Heater, some of the details
contained in
the
Rinnai
RL94i
install manual are s�ll per�nent;
f
or example,
it provides
guidance on
sizing
and installing the external gas supply line
.
Ensure a licensed professional with appropriate qualifica�ons installs the G&D Heater in accordance with
all applicable codes at the facility. If you have any ques�ons or concerns, don't hesitate to contact G&D at
1-
800
-555-
0973 or
Thank you for choosing a G&D Chillers product!
REVIEW THE FOLLOWING RINNAI “VC SERIES MANUAL” BEFORE INSTALLING G&D HEATER
RINNAI RL94i WATER
HEATING UNIT
G&D STATIONARY
GAS HEATER