Appliance details
RTG 199 HE – 6 720 811 617 (2016/01)
7
3.2
Specifications (Technical data)
Approved in US/Canada
Safety devices
• Flame failure device (ionization flame rod sensor)
• Overheat prevention (temperature limiter)
• Inlet temperature sensor
• Outlet temperature sensor
• Back flow temperature sensor
• Exhaust gas temperature sensor
3.3
Unpacking the heater
Before installing the unit, be certain you have the correct heater for
your type of Gas - Propane or Natural Gas.
Identification labels are
found on the shipping box, and on the rating plate which is located on the
right side panel of the cover.
Fig. 2
Rating plate
[A]
Serial number
[B]
Type of gas
Technical characteristics
Units
RTG 199 H
Capacity
Maximum flow rate at a 45 °F
(25 °C) rise
GPM (l/min)
8.3 (31.4)
Maximum flow rate at a 55 °F
(30.6 °C) rise
GPM (l/min)
6.8 (25.7)
Maximum flow rate at a 75 °F
(41.7 °C) rise
GPM (l/min)
5.0 (18.8)
Maximum flow rate at a 90 °F
(50 °C) rise
GPM (l/min)
4.2 (15.7)
Maximum output
BTU/hr (kW)
184,500 (54)
Maximum input
BTU/hr (kW)
199,000 (58.3)
Thermal efficiency (Efficiency
in %)
%
> 94%
Minimum Input
BTU/hr (kW)
19,900 (5.8)
Temperature Control
Selection range
°F ( °C)
100 - 140 (38 - 60)
Default temperature
°F ( °C)
122 (50)
Stability
°F ( °C)
2 (
1)
Gas Requirement
Gas connection
inches
¾ "
Peak load inlet gas pressure
1)
Propane
water column
8” - 13”
Natural Gas
water column
3.5” - 10.5”
Water
Hot water connection
inches
¾ "
Cold water connection
inches
¾ "
Minimum water flow
2)
GPM (l/min)
0.5 (1.9)
Minimum recommended water
pressure
PSI (bar)
30 (2.07)
Minimum well pressure
PSI
40
Water valve material
Polymer (PPS)
(Polypropylene
Sulfide)
Connections:
Bottom of heater
Combustion
CO level
ppm
290 (measured)
CO
2
level (set from factory)
%
see table 43
Dimensions
Depth
inches (mm)
11 ¼ (286)
Width
inches (mm)
17
7
/
8
(452)
Height
inches (mm)
30½ (775)
Weight
pounds (kg)
74 (33.5)
Gas types
Natural Gas
Table 3
LP Gas
Voltage
Nominal
V AC
120
Frequency
Hz
60
Amperage
Idle
mA
40
Operation
A
2.5
Noise
db (A)
45 - 65
Water protection
3)
IP
X4D
1) To measure Gas Pressure, see Measuring Gas Pressure, chapter 4.15, page 33.
2) Activation varies with inlet water temperatures from 0.5 - 1.6 gallon/minute (1.9
- 6.1 l/m).
3) Protection against water drops.
If appliance is installed at elevations above 2000ft, refer
to chapter 4.3.8 Fan speed adjustment.
Technical characteristics
Units
RTG 199 H
Table 3