RS/YJ/Rule 23-5 (new)

rct229/rulesets/ashrae9012019/section23/__init__.py

@@ -6,6 +6,7 @@
     "section23rule2",
     "section23rule3",
     "section23rule4",
+    "section23rule5",
     "section23rule6",
     "section23rule7",
     "section23rule8",

rct229/rulesets/ashrae9012019/section23/section23rule5.py

@@ -0,0 +1,95 @@
+from pydash import flatten
+from rct229.rule_engine.rule_base import RuleDefinitionBase
+from rct229.rule_engine.rule_list_indexed_base import RuleDefinitionListIndexedBase
+from rct229.rule_engine.ruleset_model_factory import produce_ruleset_model_instance
+from rct229.rulesets.ashrae9012019 import BASELINE_0
+from rct229.rulesets.ashrae9012019.ruleset_functions.baseline_system_type_compare import (
+    baseline_system_type_compare,
+)
+from rct229.rulesets.ashrae9012019.ruleset_functions.baseline_systems.baseline_system_util import (
+    HVAC_SYS,
+)
+from rct229.rulesets.ashrae9012019.ruleset_functions.get_baseline_system_types import (
+    get_baseline_system_types,
+)
+from rct229.utils.assertions import getattr_
+
+APPLICABLE_SYS_TYPES = [
+    HVAC_SYS.SYS_6,
+    HVAC_SYS.SYS_8,
+]
+
+
+class Section23Rule5(RuleDefinitionListIndexedBase):
+    """Rule 5 of ASHRAE 90.1-2019 Appendix G Section 23 (Air-side)"""
+
+    def __init__(self):
+        super(Section23Rule5, self).__init__(
+            rmrs_used=produce_ruleset_model_instance(
+                USER=False, BASELINE_0=True, PROPOSED=False
+            ),
+            each_rule=Section23Rule5.TerminalRule(),
+            index_rmr=BASELINE_0,
+            id="23-5",
+            description="For baseline systems 6 and 8, Fans in parallel VAV fan-powered boxes shall run as the first stage of heating before the reheat coil is energized.",
+            ruleset_section_title="HVAC - Airside",
+            standard_section="G3.1.3.14 Fan Power and Control (Systems 6 and 8)",
+            is_primary_rule=True,
+            rmr_context="ruleset_model_descriptions/0",
+            list_path="$.buildings[*].building_segments[*].zones[*].terminals[*]",
+        )
+
+    def create_data(self, context, data):
+        rmd_b = context.BASELINE_0
+
+        baseline_system_types_dict = get_baseline_system_types(rmd_b)
+
+        hvac_sys_6_or_8_list = flatten(
+            [
+                baseline_system_types_dict[system_type]
+                for system_type in baseline_system_types_dict
+                for applicable_sys_type in APPLICABLE_SYS_TYPES
+                if baseline_system_type_compare(system_type, applicable_sys_type, False)
+            ]
+        )
+
+        return {
+            "hvac_sys_6_or_8_list": hvac_sys_6_or_8_list,
+        }
+
+    class TerminalRule(RuleDefinitionBase):
+        def __init__(self):
+            super(Section23Rule5.TerminalRule, self).__init__(
+                rmrs_used=produce_ruleset_model_instance(
+                    USER=False, BASELINE_0=True, PROPOSED=False
+                ),
+                required_fields={"$": ["is_first_stage_heat_fan_powered_box"]},
+            )
+
+        def is_applicable(self, context, data=None):
+            terminal_b = context.BASELINE_0
+            hvac_sys_6_or_8_list = data["hvac_sys_6_or_8_list"]
+            served_by_hvac_b = getattr_(
+                terminal_b,
+                "terminals",
+                "served_by_heating_ventilating_air_conditioning_system",
+            )
+
+            return served_by_hvac_b in hvac_sys_6_or_8_list
+
+        def get_calc_vals(self, context, data=None):
+            terminal_b = context.BASELINE_0
+            is_first_stage_heat_fan_powered_box_b = terminal_b[
+                "is_first_stage_heat_fan_powered_box"
+            ]
+
+            return {
+                "is_first_stage_heat_fan_powered_box_b": is_first_stage_heat_fan_powered_box_b
+            }
+
+        def rule_check(self, context, calc_vals=None, data={}):
+            is_first_stage_heat_fan_powered_box_b = calc_vals[
+                "is_first_stage_heat_fan_powered_box_b"
+            ]
+
+            return is_first_stage_heat_fan_powered_box_b